Page 1 – SERVICE MANUAL – INDOOR UNITS SYSTEM FREE SERIES & COMPLEMENTARY SYSTEMS MODELS SYSTEM FREE RCI-FSR RCIM-FSRE RCD-FSR RPC-FSR RPI(L/H)-FSRE RPI-FSN6-EF RPI-FSN3(P)E(-f) RPK-FSR(H)M RPF-FSN2E RPFI-FSN2E COMPLEMENTARY SYSTEMS KPI-(E/X)4E DX-Interface - EXV-E2 Econofresh - EF456FSN6E SMGB0137 rev.0 - 05/2021...
Page 3 Contents C o n t e n t s General information Optional accessories Electrical and control settings Control system Optional functions Commissioning Servicing Troubleshooting Maintenance notes SMGB0137 rev.0 - 05/2021...
Page 5: Table Of Contents
General Index General Index General information ....................1 General information ..........................2 1.1.1 Introduction ..............................2 Applied symbols ............................3 Norms and Regulations ........................... 3 1.4 Product classification and line-up ......................4 1.4.1 Classification of indoor unit models ......................... 4 1.4.2 Classification of KPI models ..........................4 1.4.3 Classification of DX-Interface models ......................4 1.4.4 Classification of Econofresh models .......................
Page 6 General Index 2.8 Air Inlet Direction Change ........................34 2.8.1 For RPI(L/H)-(0.4-6.0)FSRE units ......................... 34 2.9 Disconnectable drain pump ........................35 2.9.1 For RPIL-(0.4-1.5)FSRE units ........................35 Electrical and control settings ................37 3.1 Unit electrical wiring and connection ..................... 38 3.1.1 Transmission wiring between outdoor and indoor unit .................. 38 3.1.2 Electrical connection of RCI units ........................38 3.1.3 Electrical connection of RCIM units ....................... 40 3.1.4 Electrical connection of RCD units ........................
Page 7 General Index 4.7 Printed circuit board for RPI-(8.0-20.0)FSN3(P)E(-f) units (PI065-PI005) ..........84 4.8 Printed circuit board for RPK-FSR(H)M units ..................85 4.8.1 For RPK-(0.4-1.5)FSR(H)M (PI151-PI154) ....................85 4.8.2 For RPK-(2.0-4.0)FSRM (PI151-PI154) ......................86 4.9 Printed circuit board for RPF(I)-FSN2E units (PI073) ................87 4.10 Printed circuit board for complementary systems ................. 88 4.10.1 Printed circuit board for KPI (PI073) ......................88 4.10.2 Printed circuit board for DX-Interface (PI073) ..................... 89 4.11 Safety protection and control......................... 90 4.12 Indoor electronic expansion valve control .....................
Page 8 General Index 7.1.4 Removing turbo fan and fan motor ......................184 7.1.5 Removing printed circuit board (PCB1) ....................... 185 7.1.6 Removing drain pan ............................ 186 7.1.7 Removing antibacterial agent ........................186 7.1.8 Removing drain-up mechanism ........................187 7.1.9 Removing float switch ..........................188 7.1.10 Removing thermistors for liquid pipe and gas pipe ................... 189 7.1.11 Removing electronic expansion valve coil ....................190 7.1.12 Removing auto louver motors and louver ....................191 7.2 RCIM-(0.4-2.5)FSRE - 4-way cassette (compact)................192 7.2.1 Removal of the air filter ..........................
Page 9 General Index 7.5.3 Mount the electrical box on the wall ......................223 7.5.4 Removal of the motor cover ........................224 7.5.5 Removal of the service cover ........................225 7.5.6 Removal of the drain pan ..........................225 7.5.7 Removal of the inlet and outlet air thermistors .................... 226 7.5.8 Removal of the thermistors from the liquid and gas pipes ................227 7.5.9 Removal of the fan parts ..........................229 7.5.10 Removal of the drain mechanism ......................232 7.5.11 Removal of the float switch ........................233 7.5.12 Removal of the air filter ..........................234 7.6 RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit ................
Page 10 General Index 7.9.10 Removal of the fan motor .......................... 275 7.9.11 Removal of the DX-Coil Module (X4E series only) ..................276 7.10 DX-Interface ............................277 7.10.1 Structure and part names .......................... 277 7.10.2 Removal of the electrical components ...................... 277 Troubleshooting ..................... 279 8.1 Electronic expansion valve check procedure ..................280 8.2 Procedure for checking fan motors in indoor units ................280 8.3 Inspection of other components ......................282 8.4 Alarm codes displayed in the remote control switch ................283 8.5 DX-Interface EXV-(2.0-10.0)E2 or KPI-(E/X)4E alarm codes..............
Page 11: General Information
1 General information G e n e r a l i n f o r m a t i o n Index General information ..........................2 1.1.1 Introduction ..............................2 Applied symbols ............................3 Norms and Regulations ........................... 3 1.4 Product classification and line-up ......................
Page 12: General Information
1 General information General information 1.1 General information © Copyright 2021 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. - All rights reserved. No part of this publication may be reproduced, copied, filmed or transmitted in any shape or form without the permission of Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. Within the policy of continuous improvement of its products, Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. reserves the right to make changes at any time without prior notification and without being compelled to introduce them into products previously sold. This document may therefore have been subject to amendments during the life of the product. Hitachi makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled by Hitachi and are not its responsibility. As a result, some of the images or data used to illustrate this document may not refer to specific models. No claims will be accepted based on the data, illustrations and descriptions included in this manual. No type of modification must be made to the equipment without prior, written authorization from the manufacturer. 1.1.1 Introduction Hitachi offers the SYSTEM FREE range of indoor units, the main advantage of which is that they can be combined with UTOPIA and SET FREE series outdoor units. This eliminates the need to duplicate models of indoor units and reduces stock. SYSTEM FREE Complementary systems Line up of Indoor Units RCI-FSR RCIM-FSRE RCD-FSR RPC-FSR RPIL-FSRE KPI-(E/X)4E...
Page 13: Applied Symbols
N O T E • The text following this symbol contains information or instructions that may be of use or that require a more thorough explanation. • Instructions regarding inspections to be made on unit parts or systems may also be included. 1.3 Norms and Regulations Following Regulation EU Nº 517/2014 on Certain Fluorinated Greenhouse gases, it is mandatory to fill in the label attached to the unit with the total amount of refrigerant charged on the installation. Do not vent R32 into the atmosphere: R32 is fluorinated greenhouse gas covered by the Kyoto protocol global warming potential (GWP) R32 = 675. Do not vent R410A into the atmosphere: R410A are fluorinated greenhouse gases covered by the Kyoto protocol global warming potential (GWP) R410A = 2088. Tn of CO equivalent of fluorinated greenhouse gases contained is calculated by indicated GWP * Total Charge (in kg) indicated in the product label and divided by 1000. Appropriate refrigerant The refrigerant used in each unit is identified on the specification label and manuals of the unit. Hitachi shall not be held liable for any failure, trouble, malfunction or accident caused by units illegally charged with refrigerants other than the specified one. Consequences of charging non-specified refrigerant It may cause mechanical failure, malfunction and other accidents. It may cause operational failure of protection and safety devices of air conditioners. It may also cause lubrication failure of the sliding part of the compressor due to deterioration of refrigerant oil. In particular, hydrocarbon refrigerants (such as propane, R441A, R443A, GF-08, etc.) are not allowed, since these are combustible and may cause major accidents such as fire and explosion in case of improper handling. Once a non-specified refrigerant has been charged, no further servicing (including draining of refrigerant) shall be performed, even in case of malfunction. Improper handling of refrigerant may be a cause of fire and explosion, and servicing in such cases may be considered an illegal act. End clients and costumers shall be informed that servicing is not approved, and the installer who charged the nonspecified refrigerant shall be asked to fix the unit. Hitachi will accept no responsibility for units that have been charged with non-specified refrigerant once. SMGB0137 rev.0 - 05/2021...
Page 14: Product Classification And Line-Up
1 General information Product classification and line-up 1.4 Product classification and line-up 1.4.1 Classification of indoor unit models Unit type (indoor unit): RCI, RCIM, RCD, RPC, RPI, RPIL, RPIH, RPK, RPF, RPFI Position-separating hyphen (fixed) Capacity (HP): 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0, 16.0, 20.0 FS = SYSTEM FREE R = R32 / R410A refrigerant N = R410A refrigerant H = Hotel (RPK-(0.4-1.5) only) 2/3/6 = series P= Pair E = Made in Europe M = Made in Malaysia – = Made in Japan or China (-f) = Non-flammable insulation (RPI-(8.0-20.0)FSN3(P)E-f only) (-EF) = Ducted indoor unit for econofresh assembly (RPI-(4.0-6.0)FSN6E- EF only) XXX(X) – 1.4.2 Classification of KPI models KPI- Ventilation system Position-separating hyphen (fixed) Capacity (m /h): 250, 500, 800, 1000, 1500, 2000 2 = 1~ 230V 50Hz E = Energy recovery...
Page 15: Product Line-Up: Indoor Units
RCI and RCIM indoor units ( R32 / R410A ) RCIM ( R32 / R410A ) 4-way cassette 4-way cassette (compact) Unit Code Unit Code RCIM-0.4FSRE (*1) 7E414148 RCIM-0.6FSRE (*2) 7E414137 RCIM-0.8FSRE 7E414100 RCI-1.0FSR 70405301 RCIM-1.0FSRE 7E414101 RCI-1.5FSR 70405302 RCIM-1.5FSRE 7E414102 RCI-2.0FSR 70405303 RCIM-2.0FSRE 7E414103 RCI-2.5FSR 70405304 RCIM-2.5FSRE 7E414104 RCI-3.0FSR...
Page 16 1 General information Product classification and line-up RCD and RPC indoor units ( R32 / R410A ) ( R32 / R410A ) 2-way cassette Ceiling type Unit Code Unit Code Unit Code RCD-0.8FSR (*) 60279168 RCD-1.0FSR (*) 60279169 RCD-1.5FSR (*) 60279170 RPC-1.5FSR 60279267 RCD-2.0FSR (*) 60279171 RPC-2.0FSR 60279268 RCD-2.5FSR (*) 60279172...
Page 17 1 General information Product classification and line-up RPI indoor units DUCTED INDOOR UNIT ( R32 / R410A ) RPIL-FSRE RPI-FSRE RPIH-FSRE Unit Code RPIL-0.4FSRE(*1) 7E426048 RPIL-0.6FSRE (*2) 7E426037 RPIL-0.8FSRE 7E426013 RPIL-1.0FSRE 7E426014 RPIL-1.5FSRE 7E426002 RPI-1.5FSRE 7E426015 RPI-2.0FSRE 7E426016 RPI-2.5FSRE 7E426017 RPI-3.0FSRE 7E426018 RPI-4.0FSRE 7E426020 RPIH-4.0FSRE 7E426007...
Page 18 1 General information Product classification and line-up DUCTED INDOOR UNIT for ECONOFRESH ASSEMBLY ( R410A ) Unit Code RPI-4.0FSN6E-EF 7E426027 RPI-5.0FSN6E-EF 7E426028 RPI-6.0FSN6E-EF 7E426029 SMGB0137 rev.0 - 05/2021...
Page 19 1 General information Product classification and line-up RPK, RPF and RPFI indoor units ( R32 / R410A ) ( R410A ) RPFI ( R410A ) Wall type Floor type Floor concealed type Unit Code Unit Code Unit Code RPK-0.4FSRM (*1) 60279204 RPK-0.4FSRHM (*1) 60279221 RPK-0.6FSRM (*2) 60279205 RPK-0.6FSRHM (*2) 60279222 RPK-0.8FSRM 60279206...
Page 20: Product Line-Up: Kpi Energy Recovery Unit
1 General information Product classification and line-up 1.4.6 Product line-up: KPI energy recovery unit Energy recovery Active (Energy Recovery+ R410A DX section) Unit Code Unit Code KPI-252E4E 70603000 KPI-502E4E 70603001 KPI-502X4E 70603201 KPI-802E4E 70603002 KPI-802X4E 70603202 KPI-1002E4E 70603003 KPI-1002X4E 70603203 KPI-1502E4E 70603004 KPI-2002E4E 70603005 1.4.7 Product line-up: DX-Interface DX-Interface (R410A) Unit Code EXV-2.0E2...
Page 21: Accessory Code List
1 General information Product classification and line-up 1.4.9 Accessory code list Hitachi has a wide range of accessories and remote control systems that can be used with the SET FREE and UTOPIA outdoor units. Consult the Technical Catalogue for controls and for the corresponding outdoor units. Name Unit reference Description Code Figure PD-75A RCI-FSR 60291763 Duct adapter PD-75C RCIM-FSRE 60292014 for fresh outdoor air intake kit PD-150D RCD-FSR 60292064 OACI-160K2 RCI-FSR Fresh outdoor air intake kit 60291761 T-shaped duct connection kit for TKCI-160K RCI-FSR 60291762 fresh outdoor air intake kit PDF-71C1 RCI-(1.0-2.5)FSR 60299436 Duct connecting flange for indoor...
Page 22 1 General information Product classification and line-up Name Unit reference Description Code Figure SOR-MSK RPI-FSRE 70590912 PS-MSK2 RCI-FSR 70590903 SOR-NEP RPC-FSR 60291825 Motion sensor kit SOR-NEC RCIM-FSRE 70590904 SOR-NED RCD-FSR 60292055 SLT-30-200-L600 KPI-502(X/E)4E 70550200 SLT-30-250-L600 KPI-802(X/E)4E 70550201 Noise damper SLT-30-300-L600 KPI-1002(X/E)4E 70550202 SLT-30-355-L600 KPI-(1502-2002)E4E 70550203 HEF-252 70552201 HEF-502...
Page 23: Multi-Kits
1 General information Product classification and line-up 1.4.10 Multi-Kits Name Description Code Figure E-102SN4 70524201 E-162SN4 70524202 E-242SN3 70524104 E-302SN3 70524105 MW-NP2682A3 60292295 E-52XN3 Line Branch 70525100 E-102XN3 70525101 E-162XN3 70525102 E-202XN3 70525103 E-242XN3 70525104 E-322XN3 70525106 MH-84AN1 70522009 MH-108AN Header Branch 70522008 MH-108XN 70523108 1.4.11 Individual remote controls Name Description...
Page 24: Receiver Kit For Combination With Wireless Remote Control Switch
1 General information Product classification and line-up 1.4.12 Receiver kit for combination with wireless remote control switch Receiver kit Compatible wireless remote Indoor unit application Code Figure name control on the panel PC-ALH3 RCI-FSR PC-AWR 60291767 PC-ALHC1 RCIM-FSRE PC-AWR 70590906 PC-ALHD1 RCD-FSR PC-AWR 60292053 PC-ALHP1 RPC-FSR PC-AWR 60291823...
Page 25: Centralised Remote Controls
1 General information Product classification and line-up 1.4.13 Centralised remote controls Name Description Code Figure PSC-A64GT Touch screen central station 60291730 PSC-A32MN Touch screen central station mini 60291966 PSC-A64S Centralised remote control 60291479 PSC-A16RS Centralised ON/OFF control 60291484 1.4.14 Building air conditioning controls Name Description Code Figure CSNET Manager 2 Centralised control with a touch interface of 10 inches which 7E512203 runs CSNET Manager 2 software to control the indoor units. CSNET Manager 2 Centralised control with a touch interface of 15 inches which 7E512206 runs CSNET Manager 2 software to control the indoor units.
Page 26: Gateways For Building Management Systems (Bms)
1 General information Product classification and line-up 1.4.15 Gateways for building management systems (BMS) Name Description Code Figure Integration with installation with intelligent control (Building HC-A16MB Management System) Gateway Interface to MODBUS 7E513210 systems (Max. 16 indoor units). Integration with installation with intelligent control (Building HC-A64MB Management System) Gateway Interface to MODBUS 7E513205 systems (Max. 64 indoor units). Integration with installations with intelligent control (BMS) KNX001 7E5121000 through CSNET WEB. Gateway Interface to KNX systems. Integration with installations with intelligent control (BMS) HI-AC-KNX-16 through CSNET Manager 2 and CSNET Lite. Gateway 70513303 Interface to KNX systems. Integration with installations with intelligent control (BMS) HI-AC-KNX-64 through CSNET Manager 2 and CSNET Lite. Gateway 70513304 Interface to KNX systems. Integration with installation with intelligent control (Building Management System) Gateway Interface to LONWORKS HARC-BX E (A) 60290874...
Page 27: Control Support Devices
1 General information Product classification and line-up 1.4.16 Control support devices Name Description Code Figure PSC-A1T Programmable timer 60291482 PSC-6RAD H-LINK RAC Adapter 60063017 PC-A1IO Integration of external equipment into H-LINK 7E519000 PSC-5HR H-LINK Relay 60291105 THM-R2AE Remote temperature sensor (THM4) 7E299907 1.4.17 Control accessories Name Description Code Figure Wall mounted support Wall support 2 7E512302 (for both CSNET Manager 2 T10 / T15) Stand mounted support...
Page 29: Optional Accessories
2 Optional accessories O p t i o n a l a c c e s s o r i e s Index Duct adapter - Outdoor air inlet ......................20 2.1.1 For RCI-FSR indoor units: OACI-160K2 and PD-75A ................... 20 2.1.2 For RCIM-FSRE indoor units: PD-75C ......................
Page 30: Duct Adapter - Outdoor Air Inlet
2 Optional accessories Duct adapter - Outdoor air inlet 2.1 Duct adapter - Outdoor air inlet 2.1.1 For RCI-FSR indoor units: OACI-160K2 and PD-75A The inlet of outdoor air is possible through the PD-75A or the OACI-160K2 duct connection in the position shown in the figure. (Sold separately). OACI-160K2 PD-75A (**) (*) 1 or 2 duct adapter can be installed (**) Only 1 duct adapter can be installed ...
Page 31 2 Optional accessories Duct adapter - Outdoor air inlet The outdoor air inlet duct reference OACI-160K2 resistance data, is indicated in the following figure. Use as a guide for fan selection. Limit of fresh air intake amount with OACI-160K2 accessory Air flow volume (m /min.) N O T E • This chart shows the value when the kit OACI-160K2 is used by itself. In the case that the kit is installed with the T-tube connecting kit, refer the value to its chart .
Page 32 2 Optional accessories Duct adapter - Outdoor air inlet Install an inspection panel -6- below the duct fan so that maintenance operations can be carried out on the air filter and the damper. Always use a damper and adjust the amount of air where a fan with a supply volume higher than the outdoor air inlet volume limit is used. Duct connection OACI-160K2 (Installation height) (Before compression) (After compression) (Installation dimension) Packing (EPDM) U-shaped hook (2 portions) Air flow Air flow Insulation (Polyethylene) Fixing plate (4 portions) Fresh air Fresh air...
Page 33: For Rcim-Fsre Indoor Units: Pd-75C
2 Optional accessories Duct adapter - Outdoor air inlet Duct adapter PD-75A View from P Connecting duct 4 x φ6.5 diameter ∅ 75 Duct adaptor Electrical box Fresh air intake Indoor unit Screw (4 portions) (accessory) Packing (accessory) (1.0-2.5) (3.0-6.0) 2.1.2 For RCIM-FSRE indoor units: PD-75C The inlet of outdoor air is possible through the PD-75C duct adapter for RCIM-FSRE indoor units.
Page 34: For Rcd-Fsr Indoor Units: Pd-150D
2 Optional accessories Duct adapter - Outdoor air inlet 2.1.3 For RCD-FSR indoor units: PD-150D The PD-150D duct adapter for RCD-FSR is used as a connection flange to attach the fresh air intake outlet (for connecting the flexible duct (Ø150)). Duct adapter Ø6.5 x 4 Guide (Polyethylene) An example of installation of the duct adapter PD-150D is shown below. Refer to “Installation & Maintenance Manual” of duct adapter for more detailed information of the installation of fresh air intake duct. Duct band Fresh air intake Duct adapter...
Page 35: T-Duct Connection Position
2 Optional accessories T-duct connection position 2.2 T-duct connection position 2.2.1 For RCI-FSR indoor units: TKCI-160k The T-duct connection is designed for easier connections between the outdoor air inlet and the connection duct. The T-duct connection can only be installed when using the outdoor air inlet kit (optional) or the filter box (optional). Flexible duct (2 pieces) T-Tube connection φ145 Glass wool (insulation) φ100 Dimension Galvanized φ75 Model steel plate φ105 1.0 - 2.5 3.0 - 6.0 Electrical box Suspension band (Field-supplied)
Page 36: Branch Pipe (Pdf-71C, Pdf-160Ci)
2 Optional accessories Branch pipe (PDF-71C, PDF-160CI) 2.3 Branch pipe (PDF-71C, PDF-160CI) If there are obstacles such as partitions inside the room that prevent the air from circulating correctly, branches can be installed to provide an even air temperature. Suitable return air grilles must be installed in line with the volume of return air. If air conditioning is provided in an adjoining room, always install a return grille. Flexible duct (max. length: 5m) Partition Small room return grille Example of a branch pipe. Example of branched duct Branch duct flange Branch pipe installation The connections for the branch pipe are indicated in the following figure.
Page 37: Outlet Air Flow Interlock
2 Optional accessories Outlet air flow interlock Use a set of three-way outlet parts (optional parts) and completely block the air outlet on the branched duct side of the panel (to avoid condensation and direct the air towards the branched duct). Model Units Remarks PI-160LS1 RCI-(1.0-6.0)FSR To connect to the panel outlet The quantity of air from the branched duct side is shown in the table below as the air quantity index of the unit. If two branched ducts are connected to the unit, the amount of air from the branched duct side will be greater and the speed of the air on the 3-way outlet side will decrease. Therefore, the hot air projection distance will be reduced. 1 Where the branch duct is installed from this viewpoint, apply the dimensions indicated in the figure below to avoid accidents. 2 Use ducts with non-combustible insulating materials. 3 Fit enough heat insulation to the duct to avoid condensation. Main body 4 Follow the regulations in force regarding this matter in the place of installation or use the dimensions indicated in the figure below if there are no applicable regulations.
Page 38 2 Optional accessories Outlet air flow interlock Example of 3-Way Outlet part of blocking plate Blocking Part 1 (*1) 1 (*1) 1 (*1) Piping side Unuse Cut off the corner RCI-(1.0-1.5)FSR Cut off the corner RCI-(2.0-6.0)FSR Example of 2-Way Outlet The air outlet directions can not be selected other than the figure below. (If other air outlet directions are selected, dew condensation may occur.) Blocking Part 1 (*1) 2 (*1) 3 (*2) Piping side RCI-(1.0-6.0)FSR Refer to the item (1) 3-Way...
Page 39: Filter Box
2 Optional accessories Filter box 2.5 Filter box 2.5.1 For RCI-FSR indoor units: B-160H2 The dimensions of the filter box are shown in the following figure. Corner frame (Opening dimension) (galvanized steel plate) Packing (EPDM) U-shaped hook (2 portions) Filter holder (resin) Insulation (Polyethylene) Counter mark (refrigerant pipe side) 10 (Before compression) Fixing plate (Installation dimension) 5 (After compression) (4 portions)
Page 40: For Rcd-Fsr Indoor Units: Bd-90H And Bd-160Hd
2 Optional accessories Filter box 2.5.2 For RCD-FSR indoor units: BD-90H and BD-160HD When the filter box is installed, the total height of the unit increases by approximately 68 mm. Therefore, pay attention to the installation space. Only for B-160 Filter holder (resin) Packing 15 Before compression Galvanized sheet metal 8 After compression Installation height Dimensions N O T E (mm) Model The filters are sold separately.
Page 41: Anti-Bacteria Filter
2 Optional accessories Anti-bacteria filter 2.6 Anti-bacteria filter 2.6.1 For RCI-FSR: F-160L-K The dimensions of the long-lasting anti-bacteria filter are shown in the following figure. Long hole Packing (large) 2 pieces (reinforcement) Model Air flow direction Filter Colored Long hole Packing steel plate (small) To fit the filter, insert the tab on the suction grille into the large hole in the filter, as shown in the figure below. Antibacterial long Indoor unit life air filter Air panel Extruded part * Air inlet grille * Put the square holes into the extruded parts of air inlet grille...
Page 42: For Rcd-Fsr Indoor Units: F-90Md-K1 And F-160Md-K1 (Antibacterial Long Life Air Filter)
2 Optional accessories Deodorising filter 2.6.2 For RCD-FSR indoor units: F-90MD-K1 and F-160MD-K1 (Antibacterial long life air filter) Indoor unit Antibacterial long life air filter Paper frame Filter box (option) Filter Ceiling media Installation Air inlet Air panel height Filter holder (*1) flat grille Long life air filter Attached with optional Air panel Model/Air flow direction...
Page 43 2 Optional accessories Deodorising filter The position of the deodorising filter is shown below: Filter Filter holder (resin)* Indoor unit Filter box Ceiling Air panel Long life filter (F-160L-K) Air inlet grille * I nsert the air filter into the filter box and fix the air filter by filter holder. Dimension Model 1.0 - 2.5 3.0 - 6.0 Specifications Part F-71L-D1 F-160L-D1 Applicable indoor unit model 1.0 to 2.5 3.0 to 6.0 Dust collection efficiency (%)
Page 44: Air Inlet Direction Change
2 Optional accessories Air Inlet Direction Change 2.8 Air Inlet Direction Change 2.8.1 For RPI(L/H)-(0.4-6.0)FSRE units It is possible to change the factory-default air inlet position from back side to the bottom side in the entire RPI(L)-FSRE range. This change of air inlet from the back side to the bottom side can be achieved by adding an optional accessory (*) specifically designed for this purpose.   Inlet air direction Inlet Change Accessory Kit Inlet Change   Accessory Kit Inlet cover Bottom cover N O T E Inlet change accessory codes: - D-ICA15R (7E590912) - RPIL-(0.4-1.5)FSRE - D-ICA20R (7E590913) - RPI-(1.5-2.0)FSRE - D-ICA30R (7E590914) - RPI-(2.5-3.0)FSRE...
Page 45: Disconnectable Drain Pump
2 Optional accessories Disconnectable drain pump 2.9 Disconnectable drain pump 2.9.1 For RPIL-(0.4-1.5)FSRE units On RPIL models, it is optionally possible to change the drainage system by disabling the drainage pump and installing a gravity drainage kit. Example of both possible drainage connections: with Drain Pump option and Gravity drain kit: Gravity drain connection Drain pump connection SMGB0137 rev.0 - 05/2021...
Page 47: Electrical And Control Settings
3 Electrical and control settings E l e c t r i c a l a n d c o n t r o l s e t t i n g s Index Unit electrical wiring and connection ..................... 38 3.1.1 Transmission wiring between outdoor and indoor unit ..................
Page 48: Unit Electrical Wiring And Connection
3 Electrical and control settings Unit electrical wiring and connection 3.1 Unit electrical wiring and connection 3.1.1 Transmission wiring between outdoor and indoor unit • The transmission is wired to terminals 1-2. • The H-LINK II wiring system requires only two transmission cables that connect the indoor unit and the outdoor unit. Indoor unit Outdoor unit • Use twist pair wires (0.75 mm²) for operation wiring between outdoor unit and indoor unit.
Page 49 3 Electrical and control settings Unit electrical wiring and connection Follow the steps below to connect the remote control cable or the optional extension wire: 1 Pass the cable through the knock-out hole in the cabinet. 2 Connect the cable to terminals A and B of the terminal strip (TB1). Power source wiring. Operating wiring. 3 Tighten the screw on terminals A and B. Remote control 4 Check that the cables are correctly secured.
Page 50: Electrical Connection Of Rcim Units
3 Electrical and control settings Unit electrical wiring and connection For RCI-FSR Cord clamp Electrical box Piping cover Earth terminal Wiring connection hole Wiring support plate Screw for wiring support plate under Electrical box piping cover (Printed circuit board) Terminal board (TB1) Terminal board (TB2) Electrical box cover...
Page 51 3 Electrical and control settings Unit electrical wiring and connection Electrical connection Make the connection between the indoor unit and the air panel. N O T E • To prevent the screws from falling from the terminal box, do not remove them completely, hold onto the terminal and check that the screw is secure through the hole in the terminal. • Use the following screws for the terminal box: - M4 screw for the power supply. - M3.5 screw for the operating line. Electrical box Electrical box Indoor unit...
Page 52: Electrical Connection Of Rcd Units
3 Electrical and control settings Unit electrical wiring and connection Follow the steps below to connect the earth wire to the earth connection in the electrical box: 1 Where necessary, loosen the screw on the earthing connection in the electrical box. 2 Connect the shielded part of the power supply earth wire and the signal wiring earth wire to the earth connection. 3 Tighten the screw on the earthing connection in the electrical box. 4 Check that the shielded part of the earthing cables are correctly secured. Firmly secure the cables using a tie inside the electrical box. Cover the cables and the hole using a sealant to protect them from condensation and insects. Test runs C A U T I O N •...
Page 53 3 Electrical and control settings Unit electrical wiring and connection Follow the steps below to connect the communication cables between the outdoor and indoor unit to the terminal strip (TB2): 1 Where necessary, loosen the screws on terminals 1 and 2 on the terminal strip (TB2). 2 Connect the communication cables to terminals 1 and 2.
Page 54: Electrical Connection Of Rpc Units
3 Electrical and control settings Unit electrical wiring and connection Test runs C A U T I O N • Be careful during the test runs, as some of the safety functions remain disabled: the units operate for two hours without switching off via the thermostat. The three-minute compressor protection is not enabled during the test. • Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used. •...
Page 55: Electrical Connection Of Rpi Units
3 Electrical and control settings Unit electrical wiring and connection Follow the steps below to connect the earth wire to the earth connection in the electrical box: 1 Where necessary, loosen the screw on the earthing connection in the electrical box. 2 Connect the shielded part of the power supply earth wire and the signal wiring earth wire to the earth connection. 3 Tighten the screw on the earthing connection in the electrical box. 4 Check that the shielded part of the earthing cables are correctly secured. Nº Part Electrical box Knockout hole for wirings...
Page 56 3 Electrical and control settings Unit electrical wiring and connection Electrical connection Check that the power supply for the RPI indoor unit is 230 V. If not, replace connectors CN on the TF transformers in the electrical box. N O T E The service panel for the indoor unit fan motor is at the bottom of the unit and the electrical box service panel is on the right-hand side. Open the service panel. Cut the centre of the rubber bushing in the wiring connection hole. N O T E • To prevent the screws from falling from the terminal box, do not remove them completely, hold onto the terminal and check that the screw is secure through the hole in the terminal.
Page 57 3 Electrical and control settings Unit electrical wiring and connection RPI(L/H)-(0.4-6.0)FSRE Terminal board location Cover the cables and the hole using a sealant to protect them from condensation and insects. Nº Part Printed circuit board Terminal strip Electrical Wiring connection RPI-(8.0/10.0)FSN3E(-f) Terminal board connections Nº...
Page 58 3 Electrical and control settings Unit electrical wiring and connection RPI-(16.0/20.0)FSN3PE(-f) Terminal board connections Nº Part PCB1 Printed circuit board 1 PCB2 Printed circuit board 2 Transformer Terminal board PCB2 Circuit breaker Auxiliary relay PCB1 Service panel for electrical box Wiring holes Test run The fan motor in RPI-(8.0/10.0)FSN3E(-f) and RPI-(16.0/20.0)FSN3(-f)PE units can be configured in two different ways: • A: connector CN24 LSP (Low Static Pressure) (factory supplied setting);...
Page 59: Electrical Connection Of Rpk Units
3 Electrical and control settings Unit electrical wiring and connection 3.1.7 Electrical connection of RPK units Work prior to the electrical connection 1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings. 2 Wait 5 minutes after turning off the power supply switches. 3 Check that the fans on the indoor and outdoor units are at a standstill before starting work. N O T E • The electrical power for the unit must involve a specific power line, with an exclusive power control switch and residual current breaker, installed in line with local or national safety regulations. •...
Page 60 3 Electrical and control settings Unit electrical wiring and connection 3 Use the shielded twist pair cable for control between the outdoor unit and the indoor units. They are connected to the terminals 1 and 2 of the terminal boards. The remote control switch cable is connected to the terminals A and B of each indoor unit terminal board.
Page 61 3 Electrical and control settings Unit electrical wiring and connection Terminal board connections Screw for earth wiring connection Electrical box cover Terminal board for power source Switch cover Terminal board for remote control switch cable and transmission wire Electrical box cover Fix the wires by cord clamp Wire for receiver kit or wired remote control DIP switch location...
Page 62: Electrical Connection Of Rpf(I) Units
3 Electrical and control settings Unit electrical wiring and connection 3.1.8 Electrical connection of RPF(I) units Work prior to the electrical connection 1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings. 2 Wait 5 minutes after turning off the power supply switches. 3 Check that the fans on the indoor and outdoor units are at a standstill before starting work. N O T E • The electrical power for the unit must involve a specific power line, with an exclusive power control switch and residual current breaker, installed in line with local or national safety regulations. •...
Page 63 3 Electrical and control settings Unit electrical wiring and connection Electrical box Wall Intermediate wiring Remote control switch Power supply wiring Through holes Nº Part Printed circuit board. Transformer. Terminal box. Capacitor. Follow the steps below to connect the cable of the remote control (PC-ARFP1E) or the optional extension wire: 1 Pass the cable through the knock-out hole in the cabinet. 2 Connect the cable to terminals A and B in the electrical box. 3 Tighten the screw on terminals A and B in the electrical box. 4 Check that the cables are correctly secured. Follow the steps below to connect the power cables to the power terminals in the electrical box: 1 Where necessary, loosen the screws on the power terminals in Remote control...
Page 64: Electrical Connection Of Kpi Units
3 Electrical and control settings Unit electrical wiring and connection 3.1.9 Electrical connection of KPI units Work prior to the electrical connection 1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings. 2 Wait 5 minutes after turning off the power supply switches. 3 Check that the fans on the indoor and outdoor units are at a standstill before starting work. N O T E • The electrical power for the unit must involve a specific power line, with an exclusive power control switch and residual current breaker, installed in line with local or national safety regulations. •...
Page 65: Econofresh Electrical Wiring Connection
3 Electrical and control settings Unit electrical wiring and connection Test runs C A U T I O N • Be careful during the test runs, as some of the safety functions remain disabled: the units operate for two hours without switching off via the thermostat. The three-minute compressor protection is not enabled during the test. • Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used. •...
Page 66: Dx-Interface Electrical Wiring
3 Electrical and control settings Unit electrical wiring and connection 3.1.11 DX-Interface electrical wiring • Connect the electrical wires between the indoor unit and the outdoor unit, as shown in the next diagram. • Follow the local codes and regulations when performing the electrical wiring. • Use shielded wires for intermediate wiring to protect the units from noise obstacle at length of less than 300 m and size in compliance with local codes.
Page 67 3 Electrical and control settings Unit electrical wiring and connection Expansion valve box terminal board Expansion Exp. valve valve box Terminal board connections and remarks Terminal board 1 Wire and maximum current Mark Item Name Description specification (EN60335-1) DUTY V: Duty control by voltage (0~10V) (0~5V) (optional): Wire section: 3x0,5mm V+: Output power to device (+24Vdc) D: Voltage input (0~10V) (0~5V)
Page 68 Wire section: 6x0,5mm  e-box terminal board and expansion valve terminal board Not used 1~ 230V 50Hz Max current: MD: Motor Drain discharge (optional): 1A (output)  A drain water pump (field supplied) can be connected to DX-kit interface. Wire section: 2x0,75mm FAN CONTROL: Fan tap speed control by HITACHI remote controller (optional): N-Neutral phase connection (common) Maximum current allowed: 3,5A Wire section: 4x0,75mm  H: High fan speed signal (*1) M: Medium fan speed signal L: Low fan speed signal Not used M.
Page 69: Setting Of Dip Switches And Rsw Switches
3 Electrical and control settings Setting of DIP switches and RSW switches 3.2 Setting of DIP switches and RSW switches Cycle number 2 Cycle number 0 Cycle number 1 Terminal resistance Number of refrigerant cycle (setting for the tens digit) Number of refrigerant cycle (setting for the last units digit)
Page 70 3 Electrical and control settings Setting of DIP switches and RSW switches DSW5 and RSW(1/2): Refrigerant cycle number setting It is required to change factory default setting, with a value of up to 63. In the same refrigerant cycle, set the same refrigerant cycle number for the outdoor unit and the indoor unit.
Page 71 3 Electrical and control settings Setting of DIP switches and RSW switches • RPI-(16.0/20.0)FSN3PE(-f) only: No setting is required. RSW1 DSW6 PCB1 PCB2 (Upper E-box) (Lower E-box) 1 2 3 4 5 6 N O T E When further connecting indoor units, make sure to set a number other than one or two for each indoor unit. SMGB0137 rev.0 - 05/2021...
Page 72: Wiring Diagrams
3 Electrical and control settings Wiring diagrams 3.3 Wiring diagrams All the field wiring and equipment must comply with national and local regulations. 3.3.1 RCI-(1.0-6.0)FSR SMGB0137 rev.0 - 05/2021...
Page 73: Rcim-(0.4-2.5)Fsre
3 Electrical and control settings Wiring diagrams 3.3.2 RCIM-(0.4-2.5)FSRE SMGB0137 rev.0 - 05/2021...
Page 74: Rcd-(0.8-6.0)Fsr
3 Electrical and control settings Wiring diagrams 3.3.3 RCD-(0.8-6.0)FSR 3.3.3.1 RCD-(0.8-3.0)FSR SMGB0137 rev.0 - 05/2021...
Page 75: Rcd-(4.0-6.0)Fsr
3 Electrical and control settings Wiring diagrams 3.3.3.2 RCD-(4.0-6.0)FSR SMGB0137 rev.0 - 05/2021...
Page 76: Rpc-(1.5-6.0)Fsr
3 Electrical and control settings Wiring diagrams 3.3.4 RPC-(1.5-6.0)FSR SMGB0137 rev.0 - 05/2021...
Page 77: Rpi(L/H)-(0.4-6.0)Fsre
3 Electrical and control settings Wiring diagrams 3.3.5 RPI(L/H)-(0.4-6.0)FSRE Arranged in evap Arranged in stay 3 unit Arranged in 1N~ 230V 50Hz drain pump evap unit assy Liquid pipe Gas pipe Air inlet Air outlet Main switch, Included in Included in Included in thermistor thermistor...
Page 78: Rpi-(4.0-6.0)Fsn6E-Ef
3 Electrical and control settings Wiring diagrams 3.3.6 RPI-(4.0-6.0)FSN6E-EF Included in 1~ 230V 50Hz Included in MFE Main switch, Arranged in Arranged in evap stay (fuse), drain pump 3 unit assy Arranged in evap unit Gas pipe Liquid pipe inlet outlet Included in thermistor...
Page 79: Rpi-(8.0/10.0)Fsn3E(-F)
3 Electrical and control settings Wiring diagrams 3.3.7 RPI-(8.0/10.0)FSN3E(-f) For 240V For 220V Air inlet 1~ 230V 50Hz Alarm Air outlet Main switch, CB (fuse), Liquid pipe Gas pipe 1~ 230V 50Hz (Option) Main switch, CB (fuse), PCB1 HSP connector LSP connector PCB2 (Factory supplied)
Page 80: Rpi-(16.0/20.0)Fsn3Pe(-F)
3 Electrical and control settings Wiring diagrams 3.3.8 RPI-(16.0/20.0)FSN3PE(-f) 240 V Liquid and gas THM come from evaporator unit Liquid 240 V pipe pipe inlet outlet Main switch, CB (fuse), 1~ 230V 50Hz Option Connector HSP Connector (Factory supplied) Liquid and gas THM come from 240V evaporator unit...
Page 81: Rpk-(0.4-1.5)Fsrm
3 Electrical and control settings Wiring diagrams 3.3.9 RPK-(0.4-1.5)FSRM SMGB0137 rev.0 - 05/2021...
Page 82: Rpk-(0.4-1.5)Fsrhm
3 Electrical and control settings Wiring diagrams 3.3.10 RPK-(0.4-1.5)FSRHM SMGB0137 rev.0 - 05/2021...
Page 83: Rpk-(2.0-4.0)Fsrm
3 Electrical and control settings Wiring diagrams 3.3.11 RPK-(2.0-4.0)FSRM SMGB0137 rev.0 - 05/2021...
Page 84: Rpf(I)-(1.0-2.5)Fsn2E
3 Electrical and control settings Wiring diagrams 3.3.12 RPF(I)-(1.0-2.5)FSN2E SMGB0137 rev.0 - 05/2021...
Page 85: Kpi-(252-2002)E4E Energy Recovery Unit And Kpi-(502-1002)X4E Active Unit
3 Electrical and control settings Wiring diagrams 3.3.13 KPI-(252-2002)E4E energy recovery unit and KPI-(502-1002)X4E active unit SMGB0137 rev.0 - 05/2021...
Page 86: Dx-Interface Exv-(2.0-10.0)E2
3 Electrical and control settings Wiring diagrams 3.3.14 DX-Interface EXV-(2.0-10.0)E2 SMGB0137 rev.0 - 05/2021...
Page 87: Control System
4 Control system C o n t r o l s y s t e m Index Printed circuit boards for RCI-FSR indoor units (PI153) ............... 78 Printed circuit boards for RCIM-FSRE indoor units (PI153) ..............79 Printed circuit boards for RCD-FSR (PI153) ..................80 Printed circuit board for RPC-FSR (PI153) ...................
Page 88: Printed Circuit Boards For Rci-Fsr Indoor Units (Pi153)
4 Control system Printed circuit boards for RCI-FSR indoor units (PI153) C A U T I O N N O T E Turn off the power supply before setting the DIP switches. If not, the • The symbol “■” indicates the position of the DIP switches. The settings will not be valid.
Page 89: Printed Circuit Boards For Rcim-Fsre Indoor Units (Pi153)
4 Control system Printed circuit boards for RCIM-FSRE indoor units (PI153) 4.2 Printed circuit boards for RCIM-FSRE indoor units (PI153) LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and...
Page 90: Printed Circuit Boards For Rcd-Fsr (Pi153)
4 Control system Printed circuit boards for RCD-FSR (PI153) 4.3 Printed circuit boards for RCD-FSR (PI153) LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and the outdoor unit.
Page 91: Printed Circuit Board For Rpc-Fsr (Pi153)
4 Control system Printed circuit board for RPC-FSR (PI153) 4.4 Printed circuit board for RPC-FSR (PI153) LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and the outdoor unit.
Page 92: Printed Circuit Board For Rpi(L/H)-(0.4-6.0)Fsre (Pi161)
4 Control system Printed circuit board for RPI(L/H)-(0.4-6.0)FSRE (PI161) 4.5 Printed circuit board for RPI(L/H)-(0.4-6.0)FSRE (PI161) LED indicator This LED indicates the transmission status LED1 between the indoor unit and the remote control. This LED indicates the transmission status LED3 Yellow between the indoor unit and the outdoor unit.
Page 93: Printed Circuit Board For Rpi-(4.0-6.0)Fsn6E-Ef (Pi114-Pi117)
4 Control system Printed circuit board for RPI-(4.0-6.0)FSN6E-EF (PI114-PI117) 4.6 Printed circuit board for RPI-(4.0-6.0)FSN6E-EF (PI114-PI117) PCB1 LED indicator This LED indicates the LED1 transmission status between the indoor unit and the remote control. This LED indicates the LED3 Yellow transmission status between the indoor unit and the outdoor unit.
Page 94: Printed Circuit Board For Rpi-(8.0-20.0)Fsn3(P)E(-F) Units (Pi065-Pi005)
4 Control system Printed circuit board for RPI-(8.0-20.0)FSN3(P)E(-f) units (PI065-PI005) 4.7 Printed circuit board for RPI-(8.0-20.0)FSN3(P)E(-f) units (PI065-PI005) LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and...
Page 95: Printed Circuit Board For Rpk-Fsr(H)M Units
4 Control system Printed circuit board for RPK-FSR(H)M units 4.8 Printed circuit board for RPK-FSR(H)M units 4.8.1 For RPK-(0.4-1.5)FSR(H)M (PI151-PI154) PCB1 PCB2 PCB3 PCB2 Connector indication LED indicator CN18 Printed circuit board 1 (CN18) This LED indicates the transmission LED1 status between the indoor unit and the CN19 Printed circuit board 1 (CN19A - CN19B)
Page 96: For Rpk-(2.0-4.0)Fsrm (Pi151-Pi154)
4 Control system Printed circuit board for RPK-FSR(H)M units 4.8.2 For RPK-(2.0-4.0)FSRM (PI151-PI154) PCB1 PCB2 PCB3 PCB2 Connector indication LED indicator CN18 Printed circuit board 1 (CN18) This LED indicates the transmission LED1 status between the indoor unit and the CN19 Printed circuit board 1 (CN19A - CN19B) remote control.
Page 97: Printed Circuit Board For Rpf(I)-Fsn2E Units (Pi073)
4 Control system Printed circuit board for RPF(I)-FSN2E units (PI073) 4.9 Printed circuit board for RPF(I)-FSN2E units (PI073) PCB1 LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and the...
Page 98: Printed Circuit Board For Complementary Systems
4 Control system Printed circuit board for complementary systems 4.10 Printed circuit board for complementary systems 4.10.1 Printed circuit board for KPI (PI073) PCB1 LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow...
Page 99: Printed Circuit Board For Dx-Interface (Pi073)
4 Control system Printed circuit board for complementary systems 4.10.2 Printed circuit board for DX-Interface (PI073) PCB1 LED indicator This LED indicates the transmission LED1 status between the indoor unit and the remote control. This LED indicates the transmission LED3 Yellow status between the indoor unit and the outdoor unit.
Page 100: Safety Protection And Control
4 Control system Safety protection and control 4.11 Safety protection and control Setting control and safety devices for indoor units RPI-(8.0/10.0) RCIM- FSN3E(-f) Model RCI-FSR RPI (L/H) RPC-FSR RPF(I) FSRE RPI-(16.0/20.0) FSN3PE(-f)” Switch 100-10 / For the ºC 80 ±4 (*) 110±10 100±4 (*) 100±4 (*)
Page 101: Indoor Electronic Expansion Valve Control
4 Control system Indoor electronic expansion valve control 4.12 Indoor electronic expansion valve control 1 After supplying power, the electronic expansion valve closes fully before starting to open. 2 When the compressor stops, the electronic expansion valve closes fully to set its opening. 3 When it starts (the compressor is activated), the electronic expansion valve opens to a specific degree during cooling operation, 1 minute.
Page 102: Thermistor
4 Control system Thermistor 4.13 Thermistor Check that the thermistors are connected to the PCB inlet and, if not, connect them. Use a multimeter to check that the thermistor resistances Thermistor are between 240 Ω and 840 kΩ. Otherwise, replace any resistance defective thermistors.
Page 103: Optional Functions
5 Optional functions O p t i o n a l f u n c t i o n s Index Indoor units input and output signals..................... 94 5.1.1 Available ports ............................... 94 5.1.2 Optional signal configuration ......................... 96 5.1.3 Programming with remote controller ......................98 5.1.4 Description of optional input signals ......................
Page 104: Indoor Units Input And Output Signals
5 Optional functions Indoor units input and output signals 5.1 Indoor units input and output signals 5.1.1 Available ports The system has 9 optional input signals and six output signals. Both types of signal are programmed into the indoor unit PCB: connector CN3 for input signals and connectors CN7 and CN8 for output signals.
Page 105 5 Optional functions Indoor units input and output signals Indication Connections Output 1 Output 2 Output 3 Component Manufacturer or specifications Remarks Reduced power relay model OMRON: Voltage between the relay terminals Auxiliary relay (X2) MY1F or equivalent 12 V DC, 75 mA Voltage between the contactor terminals Contact (SS1) (x1) (example) Manual type...
Page 106: Optional Signal Configuration
5 Optional functions Indoor units input and output signals Indoor unit inputs/outputs factory settings Connectors CN3, CN7 and CN8 are factory-set with the following optional functions. Connector Connector Function Factory settings number terminal 1–2 Function 1. Remote unit On/Off Input Cancellation of commands from the remote control after a forced 2–3 stoppage 1–2...
Page 107 5 Optional functions Indoor units input and output signals Optional output signals N O T E If an input signal is set, the on-screen display on the remote controller automatically changes to the following. Indication Output signal Application Port • CN7 or CN8 Not set Not set...
Page 108: Programming With Remote Controller
5 Optional functions Indoor units input and output signals 5.1.3 Programming with remote controller For a complete and detailed explanation regarding the programming with the remote controller, refer to the Remote controller Installation and Operation Manual. 5.1.4 Description of optional input signals Control by field-supplied room thermostat On-screen display: 01 or 02.
Page 109 5 Optional functions Indoor units input and output signals Specifications for field-supplied room thermostat: • Manufacturer or type: equivalent to YAMAKATE R7031P005, R7031Q005. • Contactor charge: 12 Vdc • Difference of over 1.5 degrees. • Do not use a mercury thermostat. • The remote control must remain connected to the unit. When the power supply is reconnected, start the unit by pressing the on button. The compressor will then run under the control of the field-supplied thermostat. All other ...
Page 110 5 Optional functions Indoor units input and output signals Function 2: remote switching OFF of the unit (pulse signal input) On-screen display: 05. This is an optional remote off signal that uses the pulse signal. If a signal is input during the stoppage of the system, it remains unchanged. Connect the wiring and use the materials as indicated in (Example: terminal 1 and 2 of CN3) “5.1.1 Available ports”.
Page 111 5 Optional functions Indoor units input and output signals Forbidding remote control after manual stoppage On-screen display: 06. It is possible to stop the air conditioning systems using the signal from a building management system. In this case, the individual commands transmitted from the remote control are cancelled. Connect the wiring and use the materials as indicated in “5.1.1 Available ports”.
Page 112 5 Optional functions Indoor units input and output signals Remote cooling / heating change On-screen display: 07. This optional signal can be used to change the heating or cooling operating mode by sending a contact signal from outside the unit. The operating mode is controlled by the field-supplied switch or by the remote control, whichever is used last. Connect the wiring and use the materials as indicated in “5.1.1 Available ports”.
Page 113 5 Optional functions Indoor units input and output signals Input in setback mode 1 Press and hold “Menu” and “Back/Help” on the wired controller simultaneously for at least 3 seconds during the normal mode (unit stoppage). The “Test Run” menu is displayed. Select “Input/Output” from the “Test Run” menu and press “OK”.
Page 114: Description Of Optional Output Signals
5 Optional functions Indoor units input and output signals 5.1.5 Description of optional output signals Picking up of the operation signal On-screen display: 01. This optional signal is used to pick up the operation signal. Thanks to this function, the operation signal can be checked from a remote location and, for example, the outdoor air intake fan operation can be stopped.
Page 115 5 Optional functions Indoor units input and output signals Cooling operation signal On-screen display: 03. This optional signal is used to pick up the cooling operation signal. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed when this operation signal is given. Connect the wiring and use the materials as indicated in “5.1.1 Available ports”.
Page 116 5 Optional functions Indoor units input and output signals Heating operation signal On-screen display: 05. This optional signal is used to pick up the heating operation signal. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed when this operation signal is given. Connect the wiring and use the materials as indicated in ports”.
Page 117: Optional Functions Through Remote Control
5 Optional functions Optional functions through Remote control 5.2 Optional functions through Remote control The next list refers to the optional functions available to indoor units from the remote control switch. Note that not all remote control switch have access to all the optional functions. Check the remote control switch technical documentation for detailed information.
Page 118 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Setting operation mode as Function disabled This function is used to limit the cooling only (factory setting) operation mode to cooling only and to prevent heating mode (Not available for models Function enabled from being enabled.
Page 119 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Standard static pressure (factory setting) Static pressure selection This function is used to change Models High static pressure the static pressure of the RPI RPI(L/H)-FSRE units from the remote control.
Page 120 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Control by the air inlet sensor of Control by the indoor units (factory setting) temperature sensor of the remote control switch Control by the temperature sensor of the remote control switch N O T E remote...
Page 121 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Fan speed during cooling Thermo- Stop of indoor unit fan The operation of the indoor OFF: Low (factory setting) during cooling unit fan is stopped in cooling Thermo-OFF conditions Thermo-OFF conditions when using the additional remote...
Page 122 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting This function is used to prevent the decrease of discharge Function disabled air temperature in cooling (factory setting) operation, by controlling Thermo-ON/OFF according to the discharge air temperature.
Page 123 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Automatic ventilation This function allows the outdoor (factory setting) air damper to be opened in All Fresh operation mode. This KPI: Ventilation mode mode allows the full opening Ventilation with total heat exchanger of the outdoor air damper...
Page 124 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting This function stops the fan to prevent cold draughts or overheating. Fan operation in Low speed C8 must be set to 01 to use the E8=01 setting.
Page 125 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Function disabled (Factory setting) 1 hour This function sets an automatic 2 hours Automatic OFF timer OFF timer to switch OFF the setting indoor units controlled by the 3 hours remote control switch (when...
Page 126 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting 19 °C 20 °C 21 °C · · · · · · This function defines the default 24 °C Automatic reset temperature set point for the 25 °C (factory setting) temperature for cooling automatic reset function F3 in 26 ºC...
Page 127 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Function disabled 30 ºC is the standard maximum set point. (factory setting) -1 ºC (Upper limit 29 ºC) This function defines the highest temperature setting value for Upper limit of setting -2 ºC (Upper limit 28 ºC) HEATING mode.
Page 128 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Not used Use at 00 conditions Not used Use at 00 conditions Function disabled Enabling steps 6 and 7 for When a RPK unit is stopped (factory setting) the air louvre in COOLING in louvre positions 6 or 7, the...
Page 129 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting All modes allowed This function is used to select Selection of allowed the operation modes in which operation modes when Only cooling/dry allowed the setting of C8 (use of remote the control sensor of the control switch sensor or remote...
Page 130 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Function disabled Louvre swing operation (factory setting) This function is used to enabled during energy-saving the setting of function L3. forced Thermo-OFF Function enabled Not used Use at 00 conditions “- -”...
Page 131 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Not used Use at 00 conditions Not used Use at 00 conditions Not used Use at 00 conditions Not used Not used Not used Not used Not used Not used...
Page 132 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Function disabled This function allows the setting (factory setting) of independent setpoints for Dual setpoint cooling and heating in the Function enabled automatic cooling/heating mode. 0.5 ºC 1.0 ºC Setting of temperature...
Page 133 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Disabled 10 minutes This function is used to define 20 minutes a minimum time of operation 30 minutes in a given mode, in order to avoid too frequent changes of Minimum operation time 40 minutes operation mode.
Page 134 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting 15.0 ºC 16.0 ºC 17.0 ºC If room temperature becomes 18.0 ºC Temperature for the lower than this setting, indoor 19.0 ºC beginning of heating in unit operation is resumed in 10.0 ºC setback...
Page 135 5 Optional functions Optional functions through Remote control Individual Element Optional function Settings Setting conditions Description setting Not used Use at 00 conditions N O T E O: allows for individual setting. X: the setting is made for all outdoor units. –: not used.
Page 136: Description Of The Optional Remote Control Functions (Pc-Arfp1E)
5 Optional functions Optional functions through Remote control 5.2.2 Description of the optional remote control functions (PC-ARFP1E) b1 – Removal of heating temperature compensation This function is used to adjust the difference of temperature between the setting temperature of the remote control switch and the inlet air temperature of the indoor unit. This is useful when the inlet air thermistor is not placed inside the indoor unit or due to uneven Heat Load or for example in standard heating mode, the suction air temperature is greater than that of the room, therefore the setting temperature used according to the factory setting is calibrated to the indicated temperature +4 °C, but depending on the room conditions can be necessary to compensate a smaller value.
Page 137 5 Optional functions Optional functions through Remote control b8 – Automatic COOL/HEAT operation This function allows the automatic change from the cooling to the heating mode for the units with the same refrigerant cycle. N O T E This function is not valid when the outdoor unit is an exclusive cooling model or when the function to set operations as an exclusive cooling unit is enabled.
Page 138 5 Optional functions Optional functions through Remote control C8 – Thermistor of Remote Control Switch and Remote sensor This function is useful when the unit is to be controlled by the thermistor included in the Remote Control or by Remote Sensor instead of by the suction air thermistor.
Page 139 5 Optional functions Optional functions through Remote control CE – Stop of indoor unit fan during heating Thermo-OFF conditions This function is useful to avoid the perception of cold draughts. When “CE=01”: Fan stop operation in thermo-off conditions when using the PC-ARFP1E sensor, “C8=01” must be set in this case. The fan will not be turned on when the indoor unit is switched on in Thermo-OFF conditions. Indoor unit will use the PC-ARFP1E Remote Control temperature sensor to monitor the room temperature when fan is stopped (heating Thermo-OFF fan stop sequence).
Page 140 5 Optional functions Optional functions through Remote control d1 – Power supply ON/OFF 1 (Automatic Operation when Power Supply is ON) This function stores the unit settings in the event of a power cut. The unit is restarted when the power is re-established. C A U T I O N When this function is used without anyone controlling the unit, set the system monitoring mode to avoid risks.
Page 141 5 Optional functions Optional functions through Remote control E1 – Econofresh cooling mode (100 % fresh air operation for cooling mode) This function allows the outdoor air damper to be open in All Fresh operation mode. This mode allows the full opening of the outdoor air damper (according to the control system).
Page 142 5 Optional functions Optional functions through Remote control E9 – Intermittent fan operation in heating stop In case that the indoor unit is stopped (in SW OFF), under certain conditions the fan operation at Slo speed is performed for 3 minutes after 30 minutes of stoppage. Not available for models RPF(I)FSN2E. EA –...
Page 143 5 Optional functions Optional functions through Remote control When switching fan speed due to the control of the sensor for heating radiation temperature, it is switched immediately even during the 3 minutes of maintenance of fan speed. When switching fan speed due to the beginning of the heating draft control, it is switched immediately even during the 3 minutes of maintenance of fan speed.
Page 144 5 Optional functions Optional functions through Remote control F1 – Automatic OFF timer setting This function is used to switch off the timer automatically when the unit is started using the remote control. It is not possible to cancel or change the timer off setting during automatic timer off setting. However, it can be cancelled when the unit is stopped. When the unit is restarted, the off timer setting period is established according to the optional setting. Do not set the functions “0C”-”0F” when two remote control switches are used in the same remote control group. N O T E This function is not available for control using CSNET Manager 2 or 7-day timer.
Page 145 5 Optional functions Optional functions through Remote control F7 – Prevention of operation stoppage due to Remote Control operating error This function prevents the stoppage when pressing the start/stop button in the remote controller by error. N O T E Operation is stopped by pressing the run/stop switch for 3 seconds.
Page 146 5 Optional functions Optional functions through Remote control J1 – Not used J2 – Not used J3 – Colour of the run indicator This function is used to set the run indicator colour. J4 – Override of start / stop prohibition at the remote controller This function allows to define the possibility to stop and/or restart an indoor unit when there is remote control prohibition ...
Page 147 5 Optional functions Optional functions through Remote control K5 – Detection level of the motion sensor kit This function is used to determine the amount of human activity depending on the reaction rate. When “High” is set, the detection level becomes more sensitive. When “Low” is set the sensor becomes lower. Setting conditions 00 (factory setting) Human activity...
Page 148 5 Optional functions Optional functions through Remote control P1 – Setting temperature in 0.5 ºC steps This function is used to define whether setting temperature is adjusted in 0.5 ºC steps (when set to “00”) or in 1 ºC steps (when set to “01”). This setting also determines whether the resolution of temperature differential of the thermistor is 0.5 ºC (when set to “00”) or 1 ºC (when set to “01”) enabling more precise setting control. Simplified scheme of the control system (for illustrative purposes only, as the control system also manages other parameters): Setting Temperature (P1=01) 25.0 24.0 24.1 24.2 24.3 24.4 24.5...
Page 149 5 Optional functions Optional functions through Remote control PA – Daylight saving time This function is used to set the amount of adjustment when daylight saving time is applied. Pb – Not used PC – Not used q1 – Not used q2 –...
Page 150 5 Optional functions Optional functions through Remote control qd – Minimum stop time of setback This function is used to select the minimum stop time of setback. To avoid the frequent activation of setback operation, a minimum off-time shall pass from the end of setback operation until the beginning of the following setback operation. Even if room temperature reaches the setpoint to start setback operation, setback operation does not start until the minimum off-time has expired.
Page 151 5 Optional functions Optional functions through Remote control rb – Minimum operation time to allow the change of operation mode in automatic cooling/heating mode with dual set point This function is used to define a minimum time of operation in a given mode, in order to avoid too frequent changes of operation mode. Operation mode does not change until the minimum transition time passes, even if the room temperature reaches the setpoint to shift to the other operation mode.
Page 152: Optional Functions For Pc-Arh1E Remote Controls
5 Optional functions Optional functions through Remote control 5.2.3 Optional functions for PC-ARH1E remote controls Individual Item Optional function Settings Setting conditions Description Setting Normal (factory setting) Heating temperature (Setting Temperature + 4 ºC) compensation This function is used to adjust the temperature difference between the ...
Page 153 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Function disabled This function prevents the Locking of fan (factory setting) modification of the fan speed of the speed setting × unit from the remote controller and (Not available for from central controls, once it has Function enabled models KPI-E4)
Page 154 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Function disabled Increase of fan This function is used to increase (factory setting) speed at heating the fan speed when the thermostat Thermo-OFF ○...
Page 155 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting “- -” Not available – – permanent “- -” Not available – – permanent Forced stoppage input: A contact, normally open contact (factory This function determines the logic Selection of forced setting)
Page 156 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting When power supply is restored, the Function disabled Management of indoor units controlled by the wired (factory setting) indoor unit operation ○ remote control switch are turned on after a power supply regardless of their ON/OFF status at Function enabled...
Page 157 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Not used Use at 00 conditions Only for KPI-E4E Activated for supply fan This function selects which fan and KPI-X4E: – will increase the speed (when E2 Selection of the fan Activated for exhaust fan enables this function).
Page 158 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Function disabled Forced Thermo-ON This function is used to force (factory setting) when stopping in ○ Thermo-ON during 6 minutes when cooling operation stopping in cooling operation.
Page 159 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting This function is used to limit unit operation and save energy. Function disabled The setting temperature is automatically set to the value (Factory setting) defined with functions "F5" or "F6", ...
Page 160 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Function disabled Lock function for fan This function is used to prevent × Function enabled speed selection changes to the fan speed. (factory setting) Function disabled Lock function This function is used to prevent...
Page 161 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Not Used Use at 00 conditions Air conditioning only KPI: Operation (factory setting) This function is only available modes for the for ventilation units with energy Ventilation only ventilation unit with recovery.
Page 162 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Models: RPF(I)-FSN2E Standard (factory setting) Not available, use at 00 conditions. This parameter defines the sensitiveness of the motion sensor. High Detection level of The amount of activity in the room ○...
Page 163 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting Power save must be ON in order to use this function (L5 must be set to Direct air blow Low (factory setting) 01). This function is used to establish louvre swinging operation ranging Direct air blow Medium...
Page 164 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting ECO button enabled (factory setting) Operation of the The operation of ECO button is × ECO button disabled when P6 is set to 01 ECO button disabled Function disabled This function is used to prohibit the...
Page 165 5 Optional functions Optional functions through Remote control Individual Item Optional function Settings Setting conditions Description Setting 0.5 ºC 1.0 ºC 1.5 ºC 2.0 ºC 2.5 ºC This setting is the temperature Setback differential value to adjust the temperature × 3.0 ºC setting temperature during Setback compensation 3.5 ºC operation.
Page 166: Description Of The Optional Remote Control Functions (Pc-Arh1E)
5 Optional functions Optional functions through Remote control 5.2.4 Description of the optional remote control functions (PC-ARH1E) b1 – Removal of Heating Temperature Compensation (due to Uneven Heat Load) This function is used when the temperature settings of the remote control switch and the suction air temperature of the indoor unit are required to be equal.
Page 167 5 Optional functions Optional functions through Remote control b7 – Setting operation mode as cooling only This function is available to use refrigeration mode only and to prevent heating mode from being enabled. When this function is selected, heating operation and the automatic COOL/HEAT operation are cancelled. b8 –...
Page 168 5 Optional functions Optional functions through Remote control C8 – Thermistor of Remote Control Switch and Remote sensor This function is useful when the unit is to be controlled by the thermistor included in the Remote Control or by Remote Sensor instead of by the suction air thermistor.
Page 169 5 Optional functions Optional functions through Remote control CE – Stop of indoor unit fan during heating Thermo-OFF conditions This function is useful to avoid the perception of cold draughts. When “CE=01” : Fan stop operation in thermo-off conditions when using the PC-ARFP1E sensor, “C8=01” must be set in this case. The fan will not be turned on when the indoor unit is switched on in Thermo-OFF conditions. Indoor unit will use the PC-ARFP1E Remote Control temperature sensor to monitor the room temperature when fan is stopped (heating Thermo-OFF fan stop sequence).
Page 170 5 Optional functions Optional functions through Remote control d1 – Power supply ON/OFF 1 (Automatic Operation when Power Supply is ON) This function stores the unit settings in the event of a power cut. The unit is restarted when the power is re-established. C A U T I O N When this function is used without anyone controlling the unit, set the system monitoring mode to avoid risks.
Page 171 5 Optional functions Optional functions through Remote control E8 – Fan operation control at heating Thermo-OFF This function is useful to avoid the perception of cold draughts by stopping the indoor fan speed with the heating Thermo- OFF. These functions are only available when using the remote sensor (THM-R2AE). THM-R2AE Remote temperature sensor (connected to the THM4 port on the IU PCB) is required.
Page 172 5 Optional functions Optional functions through Remote control • Cooling Indoor control temperature (Ti2) - Setting temperature 2 (Ts2) ≥ 2ºC: Setting fan speed Indoor control temperature (Ti2) - Setting temperature 2 (Ts2) ≥ 1ºC: Medium (Low when setting fan speed is Low) Indoor control temperature (Ti2) - Setting temperature 2 (Ts2) < 1ºC: Low Setting fan speed Medium Medium (Setting) (COMP) 3-minute guard 3 minute • Heating Setting temperature 2 (Ts2) - Indoor control temperature (Ti2) ≥ 2ºC: Setting fan speed Setting temperature 2 (Ts2) - Indoor control temperature (Ti2) ≥ 1ºC: Medium (Low when setting fan speed is Low) Setting temperature 2 (Ts2) - Indoor control temperature (Ti2) < 1ºC: Low Setting fan speed Medium Medium...
Page 173 5 Optional functions Optional functions through Remote control • Common items In case of changing from Thermo-ON to Thermo-OFF at the beginning of the automatic mode, the fan speed during Thermo-OFF is that of right after Thermo-OFF. Also, the switching of fan speed is not performed during Thermo-OFF.
Page 174 5 Optional functions Optional functions through Remote control F3 – Automatic reset of setting temperature This function releases the fixed temperature setting after a certain time to limit unit operations and save energy. In case that the set temperature is changed and kept within the set time at “F4”, the temperature is automatically changed to “F5” and “F6”. In case that the set temperature is out of range at “F5” and “F6”, it is applied within upper and lower limit for the set temperature.
Page 175 5 Optional functions Optional functions through Remote control FC – Cooling lower limit for setting temperature This function is used to define a lower temperature setting limit for FAN/COOL/DRY modes. It enables the cooling range to be reduced for configuration using the remote control. An example is shown in the following figure: Temperature range at cooling (standard) Min at cooling +1ºC Min at cooling +10ºC Possible to set temperature by remote controller switch Impossible to set temperature by remote controller switch Fd –...
Page 176 5 Optional functions Optional functions through Remote control J4 – Not used J5 – Not used J6 – Not used J7 – Not used J8 – Eco-operation This function is used to optimise the setting of temperature and provide energy saving. When the setting temperature is changed during the air conditioning operation and while the operation is started/stopped by RUN/STOP on the remote control switch, the set temperature automatically returns to “Automatic Reset Temperature for Cooling/Heating (F5/F6)”...
Page 177 5 Optional functions Optional functions through Remote control k8 – Control for the prevention of condensation in the louvers In that units that are equipped with louvers, condensation may occur around the air outlet during operation in cooling or dry modes, when horizontal air flow or downward air flow are sustained for long periods. This function is used to prevent condensation by setting the louver swing angle to the third step automatically for 30 minutes every 1 hour.
Page 178 5 Optional functions Optional functions through Remote control P2 – Not used P3 – Temperature sensor displayed This function is used to select the thermistor whose temperature is shown. P4 – Display of sensor temperature This function is used to display the temperature of the sensor selected with P3. P5 –...
Page 179 5 Optional functions Optional functions through Remote control r2 – Setting of temperature differential for switching cooling and heating Function in the automatic cooling/heating mode allowing the preset of respective setpoint for cooling and heating. r3 – Not used r4 – Not used r5 –...
Page 180: Alarm Indication
5 Optional functions Optional functions through Remote control 5.2.5 Alarm indication The run LED (green) will flash. The LCD screen will show the following information: Number of indoor unit affected by the alarm. Alarm code. Unit model. Number of indoor units connected to the system. N O T E • The Alarm code corresponds to the alarm that is happening on the unit. •...
Page 181: Complementary Systems
5 Optional functions Complementary systems 5.3 Complementary systems 5.3.1 KPI and DX-Interface 5.3.1.1 7-segments display main menus Push Push PSW1 Manual overriding PSW1+PSW2+PSW3 Check data menu for 3 seconds for 3 seconds F 2 8. 8. 8. 8. 8. 8. Push PSW1+PSW2 for 3 seconds...
Page 182 5 Optional functions Complementary systems Configuration menu: There are available the following configruation settings Where Code Function KPI-E4E KPI-X4E Setting Status Remarks 00: ON/OFF CO signal (*1) sensor type 01: Activated 4-20mA signal 02: Activated 0-10V signal Range: 4-20 (Default= 01: 4) If Ct = 00 Set minimum or range: 0-10 (Default= 02: 0) S1 will be “--“...
Page 183 5 Optional functions Complementary systems Push PSW1+PSW2 for 3 seconds Push Push Push PSW1 PSW3 PSW2 Push PSW1 Move up Move down for 3 seconds Push Push PSW3 PSW2 00, 01, 02 Move up Move down Push Push Push PSW1 PSW2 PSW3 Move down...
Page 184: Econofresh Kit
5 Optional functions Complementary systems 5.3.2 Econofresh Kit Available ports The system has three optional input signals programmed into the PCB using connector CN3 on the RPI unit and using the remote control. Connector CN3 has two ports for configuring the optional input signals of the Econofresh kit. The outdoor cooling function E1 requires no CN3 connector setting. N O T E When the RPI unit DSW6 is set for use of the Econofresh kit, CN3 connectors 1 and 2 are locked on the RPI unit PCB.
Page 185: Commissioning
6 Commissioning C o m m i s s i o n i n g Index Checks prior to the test run ......................... 176 6.1.1 Check points ..............................176 6.1.2 Check procedure ............................176 Test run procedure using the wireless remote control ................. 177 Test run check list ..........................
Page 186: Checks Prior To The Test Run
6 Commissioning Checks prior to the test run 6.1 Checks prior to the test run • Once installation is complete, carry out the test run in line with the procedure described below. The system can be handed over to the client once the test has been correctly completed. • Prior instructions to carry out the test run: 1 Verify the check points described in Check points.
Page 187: Test Run Procedure Using The Wireless Remote Control
6 Commissioning Test run procedure using the wireless remote control 12 The operating temperature: • Cooling operation a. Indoor DB 21.5ºC and higher. b. Indoor WB 16ºC and higher. c. Outdoor DB 0ºC and higher. • Heating operation a. Indoor DB 27ºC and below. 13 Use shielded cables for the installation to avoid electrical noise.
Page 188: Test Run Check List
6 Commissioning Test run check list 6.3 Test run check list MODEL: SERIAL NUMBER COMPRESSOR MFG NO NAME AND ADDRESS OF CUSTOMER: DATE: 1 Does the indoor unit fan turn in the correct direction? __________ 2 Has the unit been running for at least twenty (20) minutes? __________ 3 Check the temperature of the room: Inlet: DB/WB _____ºC...
Page 189: Servicing
7 Servicing S e r v i c i n g Index RCI-(1.0-6.0)FSR - 4-way cassette ..................... 182 7.1.1 Removing air filter and air inlet grille ......................182 7.1.2 Removing electrical box cover ........................182 7.1.3 Removing optional air panel ........................183 7.1.4 Removing turbo fan and fan motor ......................184 7.1.5 Removing printed circuit board (PCB1) ....................... 185 7.1.6 Removing drain pan ............................ 186 7.1.7 ...
Page 190 7 Servicing 7.3.10 Removal of the electronic expansion valve coil ..................209 7.3.11 Removal of the automatic louver motor ..................... 210 7.3.12 Remove the anti bacterial agent case ......................211 7.4 RPC-(1.5-6.0)FSR - Ceiling type ......................212 7.4.1 Removing air filter and air inlet grille ......................212 7.4.2 Removing side cover ........................... 212 7.4.3 Removing louver ............................213 7.4.4 Removal of the fan motor ..........................213 7.4.5 Removing bearing (Except for RPC-(1.5-2.0)FSR) ..................215 7.4.6 Removing coupling (Except for RPC-(1.5-2.0)FSR) ..................216 7.4.7 ...
Page 191 7 Servicing 7.7.7 Removing AS motor ............................ 251 7.7.8 Removing drain pan ............................ 252 7.7.9 Removing heat exchanger .......................... 253 7.7.10 Removing thermistors for freeze protection, gas pipe, outlet air and inlet air ........... 257 7.7.11 Removing fan and fan motor ........................261 7.7.12 Removing electronic expansion valve coil ....................264 7.7.13 Removing Horizontal Louver ........................266 7.8 RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type..............267 7.8.1 Removal of the air inlet grille ........................267 7.8.2 Removal of the air filter ..........................267 7.8.3 ...
Page 192: Rci-(1.0-6.0)Fsr - 4-Way Cassette
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1 RCI-(1.0-6.0)FSR - 4-way cassette 7.1.1 Removing air filter and air inlet grille 1 The air filter is attached inside the air inlet grille. While pushing both ends of knobs at the air inlet grille toward the arrow direction, open the air inlet grille. 2 Hold the lower side of the air inlet grille keeping it inclined. Remove the hooks of air filter from the air inlet grille and remove the air filter. 3 Remove the supporting string from the air panel. After lifting the air inlet grille keeping it inclined, draw the air inlet grille forward to remove. 4 When attaching the air inlet grille, the supporting string shall be attached to the air panel. C A U T I O N TURN OFF all power source switches. Upper Part of Filter Upper part of filter Hook...
Page 193: Removing Optional Air Panel
1 Open the air inlet grille. Remove the connector (CN36) at the air panel from the connector for auto louver (CN17) on the indoor unit PCB1. 2 Remove the air inlet grille from the air panel. 3 Remove 4 corner pocket covers from the air panel. They can be removed pulling “ A ” part toward the arrow direction in the figure below. * T o attach the corner pocket covers again, insert the fixing hooks ( 1 and 2 ) to the air panel and insert the fixing hook ( 3 ) to the air panel. 4 Remove 4 long screws from the air panel. Remove them with attention to temporally hook hinges of air panel (2 positions) onto hooks of unit (2 positions). Then, remove the air panel after unhooking 2 hinges from the 2 hooks. Unit Unit HITACHI AIR( / )CONDITIONER Model N112 CN36 Connector for auto louver (CN17) Hook Hook Indoor unit PCB1 Electrical box Air Panel Air panel...
Page 194: Removing Turbo Fan And Fan Motor
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.4 Removing turbo fan and fan motor 1 Remove the air inlet grille and the electrical box cover according to the item “7.1.1 Removing air filter and air inlet grille” and the item “7.1.2 Removing electrical box cover”. 2 Moving Electrical Box a. Remove the outlet air thermistor (THM2), the drain pump motor connector (PCN6), the float switch connector (CN14), the pipe thermistors (THM5 and Fan motor Fan Motor THM3), the expansion valve (CN11) and the fan Vibration absorber Vibration Absorber motor connector (CN1) from indoor unit PCB1. ...
Page 195: Removing Printed Circuit Board (Pcb1)
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.5 Removing printed circuit board (PCB1) Remove the air inlet grille according to the item “7.1.1 Removing air filter and air inlet grille”. Remove the electrical box according to the item “7.1.2 Removing electrical box cover”. 3 Disconnect all wiring connectors from PCB1. 4 Remove the screw for earth wire. 5 The PCB1 is fixed by six (6) holders. Bend the holders B by finger and raise the PCB1. Remove the PCB1 from the holders A by drawing it towards arrow direction in the figure below. Holder A Holder PCB1 Screw for Screw for ...
Page 196: Removing Drain Pan
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.6 Removing drain pan Remove the air panel according to the item “7.1.3 Removing optional air panel”. Remove the electrical box cover according to the item “7.1.2 Removing electrical box cover”. Disconnect connectors of air outlet thermistor, 2 pipe thermistors (gas and liquid), the expansion valve, the drain pump, the float switch and the fan motor. 3 Remove the electrical box and the bell-mouth according to the item “7.1.4 Removing turbo fan and fan motor”. 4 Draining Drain Water Drain Pan Drain pan Pull out the rubber plug from the drain pan, and drain the water remaining in the drain pan. Although the silicon sealant is ...
Page 197: Removing Drain-Up Mechanism
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.8 Removing drain-up mechanism Remove the drain pan according to the item “7.1.6 Removing drain pan”. 2 Remove the insulation which attaches the wires for float switch and drain-up mechanism together. 3 Cut the plastic band fixing the wires at the fixing plate for float switch. 4 Cut the hose band for drain hose by nipper, and remove the drain hose from the drain-up mechanism. 5 Remove two (2) fixing screws for drain-up mechanism. When removing, hold the drain-up mechanism by hand in order not to fall. 6 Remove the drain-up mechanism. N O T E When reassembling, wrap up the wires for float switch and drain-up mechanism together by the insulation Fix securely them to the original position.
Page 198: Removing Float Switch
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.9 Removing float switch Remove the drain pan according to the item “7.1.6 Removing drain pan”. 2 Remove the insulation which attaches the wires for float switch and drain-up mechanism together. 3 Cut the plastic band fixing the wires at the fixing plate for float switch. 4 Removing Float Switch. The float switch is attached next to the drain-up mechanism. Remove the float switch by loosening the fixing screw for the fixing base. N O T E • When reassembling, wrap up the wires for float switch and drain-up mechanism together by the insulation. Fix securely them to the original position.
Page 199: Removing Thermistors For Liquid Pipe And Gas Pipe
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.10 Removing thermistors for liquid pipe and gas pipe Remove the air panel according to the item “7.1.3 Removing optional air panel”. Remove the bell-mouth according to the item “7.1.4 Removing turbo fan and fan motor”. Remove the drain pan according to the item “7.1.6 Removing drain pan”. 4 Removing Partition Plate. Remove six (6) fixing screws for partition plate. Remove lead wires (for fan motor, 2 pipe thermistors and expansion valve) from the cord clamp. * W hen reassembling, bind lead wires (for liquid pipe and gas pipe thermistors) together by the plastic band (field- supplied). 5 Remove the fixing plate for thermistor from the gas pipe, and remove the gas pipe thermistor. 6 Remove the fixing plate for thermistor from the liquid pipe, and remove the liquid pipe thermistor.
Page 200: Removing Electronic Expansion Valve Coil
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.11 Removing electronic expansion valve coil C A U T I O N TURN OFF all power source switches. Remove the air panel according to the item “7.1.3 Removing optional air panel”. Remove the bell-mouth according to the item “7.1.4 Removing turbo fan and fan motor”. Remove the drain pan according to the item “7.1.6 Removing drain pan”.
Page 201: Removing Auto Louver Motors And Louver
7 Servicing RCI-(1.0-6.0)FSR - 4-way cassette 7.1.12 Removing auto louver motors and louver Remove the air panel according to the item “7.1.3 Removing optional air panel”. 2 Remove the fixing screws for each corner cover and remove the corner covers. 3 Remove the packing and guides. 4 Remove two (2) fixing screws for each motor from the air panel. 5 Remove the screw for louver bearing, and pull it out from the air panel. Then, remove the louvres, louver bearings and motors. 6 Remove the motors from the louvres. 7 Remove each connector connected to the motors. 8 Remove each louver bearing and louver spring. N O T E • When reassembling, securely catch the C-shaped part of louver spring onto the hooking part of louver. Additionally, insert the L-shaped part of louver spring into the hole of louver bearing.
Page 202: Rcim-(0.4-2.5)Fsre - 4-Way Cassette (Compact)
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2 RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.1 Removal of the air filter 1 The long-lasting filter is located inside the air inlet grille. 2 Press the knobs in the direction indicated by the arrows and open Knob the air inlet grille. 3 Remove the filter from the grille by holding onto the lower part of the grille and the filter and detaching the blocked part. Air inlet grille 7.2.2 Removal of the air inlet grille 1 Lift the grille approximately 45° angle from the air panel surface. 2 Tilt the air inlet grille, lift it up to draw it forward N O T E Filter catches If the louvers are to be moved, for example for cleaning purposes, select...
Page 203: Removal Of The Optional Air Panel
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.4 Removal of the optional air panel 1 Remove the auto swing motor connector (CN17) from PCB Electrical box 2 Remove the corner covers. Corner covers can be removed pulling “A” part, toward the arrow direction, shown in the figure below. 3 Remove the long screws of “A” at the air panel. Loosen the long screws of “B”, and rotate the air panel to the arrow direction to remove the air panel. Refrigerant pipe Indoor unit Electrical box Fixing plate (Indoor unit) Mounting Indication: sheet “Pipe side” Air panel Long screws (x4) SMGB0137 rev.0 - 05/2021...
Page 204: Removal Of The Fan Runner And The Fan Motor
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.5 Removal of the fan runner and the fan motor Remove the air inlet grille as indicated in “7.3.1 Removal of the air filter and the air inlet grille”. 2 Remove the bell-mouth. Remove the 4 fixing screws attaching the bell-mouth to the drain pan and remove the bell- mouth. 3 Removing the fan guide. Remove the 8 fixing screws and remove the drain pan. 4 Removing the Fan runner and the Fan Motor a. Remove the nut and the washer fixing the fan runner. b. Remove 3 nuts fixing the fan motor. c. Then remove the fan motor. N O T E When reassembling these parts, tighten the nuts with a tightening torque of 8N-m.
Page 205: Removal Of The Printed Circuit Board (Pcb)
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.6 Removal of the printed circuit board (PCB) Remove the electrical box cover as indicated in chapter “7.2.3 Removal of the electrical box cover”. 2 Disconnect all wire connectors from the indoor unit PCB. 3 Remove the screw fixing the earth wire terminal. 4 Remove the screw fixing the PCB cover. Then, remove the PCB cover. 5 The indoor unit PCB is fixed by 6 plastic holders. Carefully Pull out the PCB from each holder, as shown in the figure. Pull out PCB Holder Holder Electrical box Electrical box PCB Cover Pinch here with a long-nose pliers to remove the PCB Holder Electrical box C A U T I O N •...
Page 206: Removal Of The Drain Pan
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.7 Removal of the drain pan Remove the air panel in line with the instructions given in chapter “7.2.4 Removal of the optional air panel”. 2 Remove the screw of the wire cover. Then, remove the wire cover. Remove the electrical box cover as indicated in chapter “7.2.3 Removal of the electrical box cover”. Separate the connectors from: a. The liquid pipe thermistor. b. The gas pipe thermistor. c. The electronic expansion valve. d. The fan motor. Remove the bell-mouth as described in “7.2.5 Removal of the fan runner and the fan motor” 5 Drain the water a.
Page 207: Removal Of The Drain Mechanism
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.8 Removal of the drain mechanism Remove the drain pan as indicated in chapter “7.2.7 Removal of the drain pan”. 2 Remove the lead wires of the drain pan mechanism, float switch and outlet air thermistor gathered with vinyl tube and a clamping band. 3 Cut the plastic band and disconnect the drain hose from the drain mechanism. 4 Hold the drain mechanism and remove the 3 screws from the mechanism securing plate. 5 Remove the mechanism with the securing plate. N O T E • When installing, fit the drain hose as far as possible in the pump. •...
Page 208: Removal Of The Thermistors From The Liquid And Gas Pipes
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.10 Removal of the thermistors from the liquid and gas pipes Remove the optional air panel in line with the instructions given in chapter “7.2.4 Removal of the optional air panel”. Remove the bell-mouth and the fan runner as explained in chapter “7.2.5 Removal of the fan runner and the fan motor”. Remove the drain pan as indicated in chapter “7.2.7 Removal of the drain pan”.
Page 209: Removal Of The Inlet Air Thermistor
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 6 Once replaced, fit the electronic expansion valve in the Electronic expansion valve coil reverse manner as indicated for the removal process. 7 Position the butyl sheet, attaching it correctly to the valve. N O T E Electronic expansion Yellow Check that the cables do not touch the fan duct after installation valve body is complete. Blue White Orange Free Electronic expansion valve connector 7.2.12 Removal of the inlet air thermistor 1 Remove the air inlet thermistor.
Page 210: Removal Of The Automatic Louver Motor
7 Servicing RCIM-(0.4-2.5)FSRE - 4-way cassette (compact) 7.2.13 Removal of the automatic louver motor 1 Stop the automatic louver: a. Press AUTO LOUVER on the remote control while the automatic louver is operating. b. The crank touches the end of the motor securing plate and the louver returns to position 0. c. The motor power supply switches off when the louver is at the set position. d. The louver stops at the set position. Remove the optional air panel in line with the instructions given in chapter “7.2.4 Removal of the optional air panel”. 3 Remove the fixing screw for C-cover and remove the C-cover. 4 Remove the fixing screw on the AS motor from the air panel. Then, remove the louver, the louver bearing and the AS motor. 5 Remove the AS motor, stopper and bearing from the louver. 6 Disconnect the connector for the AS motor. Press the catch to disconnect the connector to avoid breakage. Bearing C-Cover Louver...
Page 211: Rcd-(0.8-6.0)Fsr - 2-Way Cassette
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3 RCD-(0.8-6.0)FSR - 2-way cassette 7.3.1 Removal of the air filter and the air inlet grille N O T E The Air filter is located inside the air inlet grille. 1 Open the air inlet flat grille. Slide the air suction grille to the front side while pushing it up gently from the opposite side, then open the air suction grille downwards. Air inlet flat grille 2 Slide the air filter in the arrow direction as shown below and release hooks on both sides to remove the air filter P-AP90DNA...
Page 212 7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette Method of Attaching Air Filter a. Place the air filter on the top of the air inlet flat grille. d. Slide the air filter only on the front side in order to lock the hooks. b. Hold the trim of the air filter. P-AP90DNA After sliding Air inlet flat grille c. Insert the hooks into the holes on the air filter. P-AP160DNA P-AP90DNA Front side Hook Hook After sliding Direction of slide Rear side Large size filter Hole on the air filter Small size filter P-AP160DNA Hook Front side e. Attach the air filter on the rear side. Hook Rear side Hole on the air filter...
Page 213: Removal Of The Electrical Box
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.2 Removal of the electrical box N O T E The Electrical box appears when opening the air inlet grille. 1 Open the air inlet grille. 2 Loosen the screw securing the electrical box cover. The electrical box cover does not need to be removed but keep hooked for maintenance work. RCD-(0.8-3.0)FSR RCD-(4.0-6.0)FSR Screw Fan control Electrical box cover Hinge / Hook Electrical box Screw Fan control Electrical box Electrical box ...
Page 214: Removal Of The Optional Air Panel
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.3 Removal of the optional air panel THM2 1 Open the air inlet grille. CN14 CN36 CN17 2 Remove the electrical box cover. 3 Remove the connector (CN17) of the automatic louver on the indoor unit PCB. 4 Hang the air panel from the indoor unit by hooking the hinges and CN11 remove the long screws (4 for P-AP90DNA, 6 for P-AP160DNA) for air panel. 5 Then, remove the air panel by unhooking the hinges (x2) from the indoor Electrical box THM5 THM3 THM1 unit drain pan. Hinge (x2) Long screw (x4) Long screw (x2) (Inside the Air Outlet) (Only for P-AP160DNA) 7.3.4 Removal of the fan duct and the fan Remove the electrical box cover according to the item “7.1.2 Removing...
Page 215 7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 4 Removing Turbo Fan and Fan Motor: a. Hold the turbo fan and remove the fixing nut then remove the turbo fan. b. Remove the 2 screws from the plate holding the fan motor lead wire then remove the fan motor. c. Remove the fan motor lead wire from 2 code clamp for evaporator partition plate. d. Remove the fixing nut and 3 vibration insulation rubber fixing the fan motor then remove the fan motor. e. For RCD-(4.0-6.0)FSR, remove the fan motor lead wire from 1 code clamp for fan partition plate placed on the centre of the indoor unit. Remove the fixing nut and 3 vibration rubber fixing the fan motor the remove the fan motor. f. For reassembling, fix the bell-mouth to the drain pan with fixing screws temporarily then fix the fan motor lead wire to 2 code clamp for the evaporator partition plate. For RCD-(4.0-6.0)FSR, fix the fan motor lead wire to 1 code clamp for the fan partition plate placed on the centre of the indoor unit. g. Center the turbo fan and bell-mouth to get enough clearance then fasten the fixing screws. RCD-(0.8-3.0)FSR RCD-(4.0-6.0)FSR Vibration insulation rubber Fixing nut Fan motor Vibration insulation rubber Fan motor Fixing nut Fixing nut Turbo fan Turbo fan Fixing nut Bell-mouth...
Page 216: Removal Of The Printed Circuit Board (Pcb)
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.5 Removal of the printed circuit board (PCB) Remove the electrical box cover according to the item “7.1.2 Removing electrical box cover”. 2 Disconnect all wire connectors from the indoor unit PCB. 3 Remove the screw for earth wire. 4 Remove the screw then remove the PCB cover. 5 The indoor unit PCB is fixed by holders (6 holders for PCB, 4 holders for fan control PCB). Pinch the holder with long- nose pliers and pull out PCB from the holders. C A U T I O N • Do not touch the electrical components of the PCB. •...
Page 217: Removal Of The Float Switch
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.6 Removal of the float switch Remove the Drain pan, as explained in “7.3.8 Removal of the drain pan” Float switch 2 Remove the lead wires for the Drain up mechanism, the Evaporator partition plate Outlet air thermistor Float switch and the Outlet air thermistor, as explained “7.3.6 Removal of the float switch” Drain-up mechanism Code clamp 3 Remove the Float switch lead wire from the core clamp at the evaporator partition plate. 4 Cut the plastic cord bands gathering the lead wires of the Float switch, the drain mechanism and the Outlet air Screw thermistor.
Page 218: Removal Of The Thermistors From The Liquid And Gas Pipes
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 6 Removing Drain Pan a. Remove the screws fixing the drain pan to the unit (4 screws for RCD-(0.8-3.0)FSR, 6 screws for RCD-(4.0-6.0)FSR). b. Then remove the drain pan from the unit. RCD-(0.8-3.0)FSR RCD-(4.0-6.0)FSR Drain pan Drain pan Screws (x6) Screws (x4) Rubber plug Rubber plug 7.3.9 Removal of the thermistors from the liquid and gas pipes Expansion valve coil 1 Remove the air inlet grille as indicated in chapter Evaporator partition plate “7.3.1 Removal of the air filter and the air inlet grille”.
Page 219: Removal Of The Electronic Expansion Valve Coil
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.10 Removal of the electronic expansion valve coil 1 Remove the optional air panel in line with the instructions given in chapter “7.2.4 Removal of the optional air panel”. Expansion 2 Remove the bell-mouth and the fan runner as indicated in valve coil chapter “7.2.5 Removal of the fan runner and the fan motor”. 3 Remove the evaporator partition plate securing the heat exchanger by removing the five screws. 4 Remove the electronic expansion valve butyl sheet.
Page 220: Removal Of The Automatic Louver Motor
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.11 Removal of the automatic louver motor 1 Stop the automatic louver: a. Press AUTO LOUVER on the remote control while the automatic louver is operating. b. The crank (2) touches the end of the motor securing plate (7) and the louver returns to position 0. c. The motor (1) power supply switches off when the louver is at the set position. d. The louver (6) stops at the set position. Remove the air panel according to the item “7.1.3 Removing optional air panel”. 3 Remove the fixing screw for C-cover and remove the C-cover. Screw C-Cover Screw C-Cover 4 Peel off the off the panel rib for the sealing gasket the remove the guide. 5 Pull the guide upwards and remove it. Guide 6 Disconnect the connector from the AS motor.
Page 221: Remove The Anti Bacterial Agent Case
7 Servicing RCD-(0.8-6.0)FSR - 2-way cassette 7.3.12 Remove the anti bacterial agent case Remove the air panel according to the item “7.1.3 Removing optional air panel”. Remove the bell-mouth and turbo fan according to the item “7.1.4 Removing turbo fan and fan motor”. Remove the drain pan according to the item “7.1.6 Removing drain pan”. 4 Remove 1 screw for antibacterial agent case then remove the antibacterial agent case. Antibacterial agent case Screw SMGB0137 rev.0 - 05/2021...
Page 222: Rpc-(1.5-6.0)Fsr - Ceiling Type
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 7.4 RPC-(1.5-6.0)FSR - Ceiling type 7.4.1 Removing air filter and air inlet grille 1 The air filter is attached inside the air inlet grille. Open the air inlet grille and remove the air filter. 2 Press and slide the cover of the air inlet grille in the direction of the arrow with fingers in the holes on the cover. 3 Then the air inlet grille is opened downward. Holes Holes (2 or 3 Portions) 4 Lift up the air filter and release the catches on the air inlet grille to (2 or 3 positions) Air Inlet Grille remove the air filter. Air inlet grille Upper side Catch...
Page 223: Removing Louver
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 7.4.3 Removing louver Remove the side covers according to “7.4.2 Removing side cover”. 2 Remove 2 screws fixing AS motor assembly to the right side plate. N O T E The louver includes the linkage brackets. Screws Screws AS Motor Assembly AS motor assembly Right side plate Right Side Plate 3 Bend the louver support ( ) slightly and remove the louver from the louver support. Bend the louver in the direction of the arrow ( ). Remove the louver shaft on the opposite side of the AS motor and then pull out the louver. AS motor side AS Motor Side Opposite side of ...
Page 224 7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 6 Remove the fan motor connector (CN1) from the Indoor Unit PCB. Fixing screw for electrical box Screw cover(outside) Screw Fixing screw for Electrical box electrical box Fan Motor Connector (CN1) Fan motor connector (CN1) cover (inside) 7 Remove the lead wires for the fan motor from the cord clamp on the plate. 8 Remove 2 fixing screws for each lower casing ( ). Remove the lower casings by pushing 2 catches ( ) inward. (Only 2 casings on the motor side shall be removed.) (Except for RPC-(1.5-2.0)FSR). 9 Loosen 2 fixing screws for the coupling with a hexagon wrench. 10 Shift the coupling to the fan motor. Casings on motor side Coupling  Screws (for lower casing) Cord clamp Screws Shift the coupling Lower casing  Catches SMGB0137 rev.0 - 05/2021...
Page 225: Removing Bearing (Except For Rpc-(1.5-2.0)Fsr)
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 11 Remove 2 motor fixing bands ( ). Remove the fan runner on the right and fan motor by shifting them in the direction of the arrow ( ) with care not to drop them. It takes 2 people to carry out the work. 12 Remove the fixing screw for the fan runner with a hexagon wrench and remove the fan runner from the fan motor.  Motor Fixing Bands Motor fixing bands Screw Screw 7.4.5 Removing bearing (Except for RPC-(1.5-2.0)FSR) Open the air inlet grille downward according to “7.4.1 Removing air filter and air inlet grille”. Remove the lower casing according to “7.4.4 Removal of the fan motor”. 3 Loosen 2 fixing screws for the coupling with a hexagon wrench and shift the coupling to the fan motor side according to “7.4.4 Removal of the fan motor”.
Page 226: Removing Coupling (Except For Rpc-(1.5-2.0)Fsr)
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type Notes for mounting bearing Mount the fixing plate for a flange bearing according to the following notes: • Align the shaft centers of the flange 1 and flange 2. • Insert washers between the flanges. • The tightening torque for bolts shall be 6N-m. This indoor unit utilizes the self-aligning bearing which enables the self-alignment by reducing the alignment torque for the bearing. Therefore, if the tightening work is not performed correctly, an abnormal noise may occur. • Check that only the bearing body rotates and moves with the bolts tightened. Flange 1 Shaft Washer Washer Flange 2 Bearing The centers of the flange 1 and 2 are out of alignment 7.4.6 Removing coupling (Except for RPC-(1.5-2.0)FSR) Open the air inlet grille downward according to “7.4.1 Removing air filter and air inlet grille”. Remove the lower casing according to “7.4.4 Removal of the fan motor”.
Page 227: Removing Auto Louver Motor
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 7.4.7 Removing auto louver motor Remove the right side cover according to “7.4.2 Removing side cover”. 2 Remove the AS motor assembly attached to the right end of the louver shaft. 3 Push the stopper to disconnect the connector. Screws Screws AS motor assembly AS Motor Assembly Right Side Plate Right side plate 7.4.8 Removal of the thermistors from the liquid and gas pipes Open the air inlet grille downward according to “7.4.1 Removing air filter and air inlet grille”.
Page 228: Removing Electronic Expansion Valve Coil
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 8 Remove 2 plastic bands ( and ) tying the lead wires for the thermistors in a bundle. 9 Remove the butyl sheets attached to the thermistors. 10 Remove the thermistors for the liquid pipe and gas pipe from the unit. Thermistor Thermistor Plastic Band 1 Plastic band  Plastic Band Plastic band  Thermistor for gas pipe (THM5) Thermistor for Gas Pipe (THM5) Thermistor Holder Thermistor holder C A U T I O N Take special care not to be injured by the heat exchanger fins. Thermistor for Liquid Pipe (THM3) Thermistor for liquid pipe (THM3) 7.4.9 Removing electronic expansion valve coil...
Page 229 7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 9 Tie the lead wires for a new expansion valve coil together with a plastic band as shown in the figure below. 10 Insert the new expansion valve coil for replacement into the expansion valve body. Fit the projection portions into the detents with the wiring outlet facing up. N O T E The detents are located 90º apart in a circle and the projections are located 180º apart in a circle. Fit the projection portions into the detents. If inserting the coil incorrectly, it may cause malfunction of the expansion valve coil. New Electronic Expansion New electronic expansion valve coil Valve Coil...
Page 230: Removal Of The Printed Circuit Board (Pcb)
7 Servicing RPC-(1.5-6.0)FSR - Ceiling type 7.4.10 Removal of the printed circuit board (PCB) Open the air inlet grille downward according to “7.4.1 Removing air filter and air inlet grille”. 2 Remove the electrical box and hook it on the flame at the lower part of the unit according to “7.4.4 Removal of the fan motor”. 3 Remove 2 fixing screws for the electrical box cover and remove 4 Remove the 6 holders fixing the indoor unit PCB. Pinch the middle portion with a long-nose pliers and pull them out. E-box cover C A U T I O N •...
Page 231: Rpi(L/H)-(0.4-6.0)Fsre - Ducted Indoor Unit
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5 RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.1 Removal of the electrical box The design of the new electrical box allows it to be separated from the RPIL-(0.4-1.5)FSRE and RPI-(1.5-2.0)FSRE for independent installation. The electrical box is located on the left side, but it can be moved to the right side and even fixed directly to the wall. In this way, it is easier to take advantage of the spaces available for mounting the system and facilitate maintenance and possible operations. In order to change the source configuration (mounted on the left side), the following steps must be followed: 1 Loosen and remove the 2 screws at the bottom of the cover, of the electrical box. 2 Loosen and remove the 2 screws that hold the electrical box to the indoor unit. 3 Tilt the electrical box forward so that the flanges holding the electrical hose can be cut. α α = 15° SMGB0137 rev.0 - 05/2021...
Page 232: Mount The Electrical Box On The Right Side
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 4 Carefully separate the electrical box from the indoor unit and softly pull the electrical hose out of the box. 7.5.2 Mount the electrical box on the right side a. Loosen and remove the 3 screws holding the lower panel. b. Remove the bottom panel and leave it somewhere that it will not be disturbed. c. Re-route the electrical hose to the inside of the indoor unit and secure it with the pre-assembled flanges. d. Mount the electrical box in its new location (right side) and fasten it with the 2 fixing screws. e. Make sure that the entire electrical hose is properly secured and exits through the right-hand side wall opening. C A U T I O N The electrical hose must not be tightened or forced at any point in its route. f. ...
Page 233: Mount The Electrical Box On The Wall
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit g. Mount the cover of the electrical box and fasten it with the 2 fastening screws. 7.5.3 Mount the electrical box on the wall a. Cut the bottom, pre-cut part of the electrical box wall passage and move the electrical hose so that it comes out the bottom of the electrical box. b. Present the electrical box in its final location on the wall and make sure that the electrical hose is attached to the wall free of obstacles in its path. C A U T I O N The electrical hose must not be tightened or forced at any point in its route. c.
Page 234: Removal Of The Motor Cover
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.4 Removal of the motor cover 1 Remove the motor cover screws from the unit 2 Pull the motor cover backwards and then pull the motor cover down. Motor cover Do not remove this screw RPI-(1.5-2.0)FSRE Motor cover Do not remove this screw RPI(H)-(4.0-6.0)FSRE SMGB0137 rev.0 - 05/2021...
Page 235: Removal Of The Service Cover
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.5 Removal of the service cover Remove the motor cover as explained in “7.5.4 Removal of the motor cover”. 2 Remove the service cover screw. 3 Pull the service cover backwards and then pull the service cover down. Service cover 7.5.6 Removal of the drain pan N O T E • Before removing the drain pan place a plastic sheet under the drain pan to prevent from wetting the floor with remaining drain. •...
Page 236: Removal Of The Inlet And Outlet Air Thermistors
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.7 Removal of the inlet and outlet air thermistors Remove the motor and service covers as explained in “7.5.4 Removal of the motor cover” and “7.5.5 Removal of the service cover”. Remove the drain pan as explained in “7.5.6 Removal of the drain pan”. 3 Disconnect from the Electrical Box and remove the thermistor. Bottom side Outlet air thermistor Inlet air thermistor SMGB0137 rev.0 - 05/2021...
Page 237: Removal Of The Thermistors From The Liquid And Gas Pipes
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.8 Removal of the thermistors from the liquid and gas pipes Remove the motor and service covers as explained in “7.5.4 Removal of the motor cover” and “7.5.5 Removal of the service cover”. Remove the drain pan as explained in “7.5.6 Removal of the drain pan”. 3 Remove the insulation covering the thermistors 4 Remove the special clamp 5 Remove the gas or liquid thermistor. N O T E •...
Page 238 7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit RPIH-(4.0-6.0)FSRE Gas thermistor Liquid thermistor RPIL-(0.4-1.5)FSRE Gas thermistor Liquid thermistor SMGB0137 rev.0 - 05/2021...
Page 239: Removal Of The Fan Parts
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.9 Removal of the fan parts RPI-(1.5-2.0)FSRE Remove the motor cover as explained in “7.5.4 Removal of the motor cover”. 2 Remove the casing screws (2 screws in the casing assy). 3 Press the locks and remove half of the fan casing. 4 Remove the motor support screws. 5 Loosen fixing screw for the fan runner with a hexagon wrench and remove the fan runner from the motor shaft. 6 Remove the runner from the casing. 7 Then remove the fan motor. N O T E If the fan casing is to be fully removed, remove the screws securing the other half to the fan motor fixture. Bottom side Casing screw Motor support screws...
Page 240 7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit RPI-(2.5-6.0)FSRE and RPIH-(4.0-6.0)FSRE Remove the motor cover as explained in “7.5.4 Removal of the motor cover”. 2 Remove the casing screws (4 screws in each casing assy). 3 Press the locks and remove half of the fan casing. 4 Remove the motor support screws. 5 Loosen 4 fixing screws for the fan runner with a hexagon wrench and remove the fan runner from the motor shaft. 6 Remove the runner from the casing. 7 Then remove the fan motor. N O T E If the fan casing is to be fully removed, remove the screws securing the other half to the fan motor fixture. Bottom side Casing screw Casing screw...
Page 241 7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit RPIL-(0.4-1.5)FSRE Remove the motor cover as explained in “7.5.4 Removal of the motor cover”. 2 Remove the screws of the upper side of the fan casing (2 screws per casing, 4 in total) 3 Press the locks and remove half of the fan casing. 4 Remove the bearing stay screws. 5 Remove the motor support screws and carefully remove the motor together with the fan. 6 Loosen the screws securing the fans to the motor shaft with a hexagon wrench and remove the fan runners and the bearing support plate from the shaft. 7 Loosen the screws from the coupling securing the shaft to the motor shaft with a hexagon wrench and remove the shaft. Bottom side Bearing stay screw Casing screw Locks Motor support screws Locks Coupling SMGB0137 rev.0 - 05/2021...
Page 242: Removal Of The Drain Mechanism
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.10 Removal of the drain mechanism N O T E To disconnect and remove the drain mechanism, previously see the chapter corresponding to the wiring diagrams in “3.3 Wiring diagrams”. Remove the motor and service covers as explained in “7.5.4 Removal of the motor cover” and “7.5.5 Removal of the service cover”.
Page 243: Removal Of The Float Switch
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.11 Removal of the float switch Remove the motor and service covers as explained in “7.5.4 Removal of the motor cover” and “7.5.5 Removal of the service cover”. Remove the drain pan as explained in “7.5.6 Removal of the drain pan”.. 3 Loosen the screws securing the float switch to the support. 4 Loosen the resin nut securing the float switch and remove it. N O T E • To disconnect and remove the float switch, previously see the chapter corresponding to the wiring diagrams in this Manual. •...
Page 244: Removal Of The Air Filter
7 Servicing RPI(L/H)-(0.4-6.0)FSRE - Ducted indoor unit 7.5.12 Removal of the air filter There are two options for filter extraction, depending on the location of the unit: Lower extraction 1 Turn 90° the locking bolt and remove the lower air filter support from the unit. 2 Pull down the air filter. Inlet air Inlet air Inlet air Filter Inlet air Filter RPIL-FSRE RPI(H)-FSRE Lateral extraction 1 Turn 90° the locking bolt and remove the lateral Air Filter support from the unit. 2 Pull the Air Filter and fold it over the joint as much as you need for the extraction. Optionally, the RPI-(1.5~2.0)FSRE unit allows access to the filter from the opposite side for proper maintenance. 1 Turn 90° the locking bolt and remove the lateral air filter support from the unit. 2 Pull the air filter and fold it over the joint as much as you need for the extraction. Inlet air Inlet air Inlet air Filter Inlet air Filter RPIL-FSRE RPI(H)-FSRE Right side Inlet air Inlet air Filter...
Page 245: Rpi-(8.0-20.0)Fsn3(P)E(-F) - Ducted Indoor Unit
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 7.6 RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit N O T E In the following general illustrations are examples for RPI-(8.0/10.0)FSN3E(-f), but they are applicable for RPI-(16.0/20.0)FSN3PE(-f) as well. In the specific cases where there are differences between both units, the illustrations are shown separately for each one. 7.6.1 Removal of the electrical box cover 1 Remove the set screws -A- from the electrical box cover to access the electrical components.
Page 246: Removal Of The Inlet And Outlet Air Thermistors
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 7.6.3 Removal of the inlet and outlet air thermistors Inlet air thermistor Remove the air filter as indicated in chapter “7.6.8 Removal of the air filter”. N O T E The inlet air thermistor -A- is located on the left-hand side of the air inlet to the unit.
Page 247: Removal Of The Thermistors From The Liquid And Gas Pipes
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 7.6.4 Removal of the thermistors from the liquid and gas pipes 1 Remove the appropriate service cover for accessing to the liquid / gas thermistors. a. For (8.0/10.0)HP: Remove all the screws (A) from the lower cover of the unit and remove the cover. b. For (16.0/20.0)HP: Remove the screws from the cycle service cover and remove it. 2 Remove the electrical box cover as indicated in chapter “7.6.1 Removal of the electrical box cover”. Cycle 3 Disconnect the thermistor. service cover N O T E •...
Page 248: Fan Removal
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit For RPI-(16.0/20.0)FSN3PE(-f) 1 The servicing of these units can be carried out either by the fan motor side cover or by the cycle service cover. Access to the drain pan through any of these covers and clean it in order to guarantee a correct operation. Drain pan 7.6.6 Fan removal For RPI-(8.0/10.0)FSN3E(-f) 1 Remove all screws -A- from the lower cover of the unit and separate it. 2 Remove the electrical box cover as indicated in chapter “7.6.1 Removal of the electrical box cover”. 3 Disconnect the fan motor. N O T E To disconnect and remove the fan motor, previously see the chapter corresponding to the wiring diagrams in this Manual.
Page 249 7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit For RPI-(16.0/20.0)FSN3PE N O T E The following procedure applies to both upper and lower fan motor groups. 1 Unscrew and remove the 7 screws of the fan motor side service cover and the 4 screws of the fan motor front service cover. Fan motor side service cover Fan motor front service cover 2 After removing the service covers, remove the screws which fix the fan motor to its supports (4 screws at the fan motor side service cover and 2 screws at the fan motor service cover). Screws of the fan motor side service cover 3 Remove the 4 front screws which fix the fan motor group to the front side of the unit. Front screws SMGB0137 rev.0 - 05/2021...
Page 250 7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 4 Once the fan motor group has been released, disconnect the fan motor connector from the electrical box and pass it through the electrical box hole. C A U T I O N Loosen the clamp around the fan motor connector cable to ease the release of fan motor group. Pass the fan motor connector through the hole 5 Remove the fan motor group. One person shall push the fan motor group from the position of the front service cover, while a second person is pulling from the position of the fan motor side service cover. C A U T I O N The fan motor group has an approximate weight of 25 kg, and therefore removal operation shall be carried out by two persons at least.
Page 251: Removal Of The Float Switch
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 7.6.7 Removal of the float switch For RPI-(8.0/10.0)FSN3E(-f) 1 Remove all screws -A- from the lower cover of the unit and separate it. Remove the drain pan as indicated in chapter “7.6.5 Removal of the drain pan”. N O T E To disconnect and remove the float switch, previously see the chapter corresponding to the wiring diagrams in this Manual. 3 Loosen the resin nut securing the float switch -A- and remove it. ...
Page 252: Removal Of The Air Filter
7 Servicing RPI-(8.0-20.0)FSN3(P)E(-f) - Ducted indoor unit 7.6.8 Removal of the air filter For RPI-(8.0/10.0)FSN3E(-f) Remove the four set screws from the support fixture -1- of the air filter -2- and separate both parts. For RPI-(16.0/20.0)FSN3PE(-f) Filter maintenance can be performed from right or left side of the unit. Remove filter support (x2 screws / each support) and pull out the filter from the handle. In those installations where the servicing space is narrow, the filter could be bent (in three pieces) when pulling it out. Filter support SMGB0137 rev.0 - 05/2021...
Page 253: Rpk-Fsr(H)M - Wall Mounted
7 Servicing RPK-FSR(H)M - Wall mounted 7.7 RPK-FSR(H)M - Wall mounted 7.7.1 Removal of the air filter For RPK-(0.4-1.5)FSR(H)M 1 Open the flat panel. Hold the both sides of flat panel and pull it up 2 Hold both sides of the flat panel and lift it up. Release the 2 catches and pull the air filter downward to remove it. Filter catches (2 portions) Filter Catches (2 portions) 7.7.2 Removal of the front panel C A U T I O N • Cover completely the front panel with a sheet of plastic to protect it during installation work.
Page 254 7 Servicing RPK-FSR(H)M - Wall mounted Expand the shaft toward Remove this part from Expand the shaft Remove this part arrow direction hole toward arrow direction from hole Flat panel Flat panel Screw Screw Bush Bush Catches on Drain Pan’ s Projection Catches on lower side Drain pan’s projection Lower Side of Portion for Catches of front panel portion for catches Front Panel Do not apply an excessive force to the catches...
Page 255 7 Servicing RPK-FSR(H)M - Wall mounted Attaching flat panel. Guide at front panel Hole Insert completely the left and right arm shafts of flat panel into the holes along the guide at the front panel. After the flat panel is attached completely, insert the catches for air filter to fix it. Front panel Flat panel For RPK-(2.0-4.0)FSRM Remove the air filter according to the “7.7.1 Removal of the air filter” chapter. 2 Hold both sides of flat panel and open it fully. After the right arm shaft is pushed inward and shafts are removed from the front panel, pull the flat panel forward while the right arm shaft is slightly pushed inward. 3 Remove 3 bushes and then 3 screws. Pull the center of the bottom side in the flat panel (2 positions) and the lower side of the louver (2 positions) forward to release the catches. Use a slotted screwdriver when the catches are difficult to release. 4 Remove the front panel carefully so that it does not touch the horizontal louver attached to the air outlet. Slightly lift the front panel up to release the catches (4 positions) on the upper side of the unit. Then pull the front panel forward to remove it. C A U T I O N Take special care not to be injured by the heat exchanger fins.
Page 256 7 Servicing RPK-FSR(H)M - Wall mounted Catches on center of bottom Front panel side in flat panel (2 portions) Catches on lower side of louver (2 portions) Hole for catches 5 When mounting the front panel, be careful that it does not touch the horizontal louver. Paying attention to both sides of the panel, put the catches (4 positions) on the upper side of the unit into the holes on the panel. Then push the center of bottom side in the flat panel (2 portions) and the lower side of the louver (2 positions) to fasten the catches. N O T E Make sure that there is no gap nor lap between the front panel and the left side of the condensate pan. If there is a gap there, an air leakage and dew condensation may occur and the dew may drop on the front panel.
Page 257 7 Servicing RPK-FSR(H)M - Wall mounted 前面パネルツメツメツメツメツメツメ上部長穴 Hole Front panel Catches on Front center of panel bottom side Body ボディ in flat panel 上部長穴(4ヶ所) 上部長穴(4ヶ所) 上部長穴(4ヶ所) 上部長穴(4ヶ所) 上部長穴(4ヶ所) (2 portions) Catch ツメ Hole for catches 上部長穴(4ヶ所) 下側中央ツメ下側中央ツメ下側中央ツメ下側中央ツメ下側中央ツメ (2ヶ所) (2ヶ所) (2ヶ所) (2ヶ所) (2ヶ所) Catches on ...
Page 258: Remove The Electrical Box Cover
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.3 Remove the electrical box cover Remove the flat panel as indicated in section “7.7.2 Removal of the front panel”. The electrical box cover can be opened without removing the front panel. 2 Remove one (1) screw fixing the terminal block cover to remove it. Also remove 1 screw fixing the electrical box cover to remove it. 3 Then, remove the power supply wiring, the transition wiring and the wiring for the remote control switch from the terminal block. 4 Remove the connectors (on the PCB1) for the freeze protection thermistor, gas pipe thermistor, inlet air thermistor, outlet thermistor, auto-louver, fan motor and expansion valve coil. 5 Remove the wirings for the freeze protection thermistor, gas pipe thermistor, inlet air thermistor and the expansion valve coil from the wiring outlet at the upper part. Also remove the wirings for the outlet air thermistor, auto-louver and fan motor from the wiring outlet at the lower part. 6 Remove the earth screw to disconnect earth wire between the heat exchanger and the electrical box. 7 Remove two (2) screws fixing the electrical box to dismount it from the indoor unit body. N O T E If the unit with the expansion valve kit is used, regard “expansion valve coil” as “expansion valve relay cord” Screw for electrical box Screw for electrical box cover Screw for terminal block cover...
Page 259: Remove The Switch Cover
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.4 Remove the switch cover Remove the flat panel as indicated in section “7.7.2 Removal of the front panel”. The switch cover can be opened without removing the front panel. Switch cover PCB2 7.7.5 Replacing DIP Switch PCB (PCB2) a. Remove the flat panel. b. Remove one (1) screw fixing the switch cover to remove it. c. Disconnect the connectors for PCB2. d. Remove spacers and then PCB2. e. After the replacement, attach PCB2 in the reverse procedure. f. Set the capacity code on DSW3. Screw for Screw for Switch Cover Switch Cover DIP Switch PCB (PCB2) Switch Cover Switch Cover...
Page 260: Replacing Pcb1 For Control
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.6 Replacing PCB1 for control Remove the electrical box according to the “7.7.7 Removing AS motor” chapter. N O T E If there is enough service space to the right side of the electrical box, PCB1 can be replaced without removing the electrical box. 2 Remove 2 spacers in the direction of the arrow (A) and also remove PCB1 in the direction of the arrow (B). 3 After the replacement, attach them in the reverse procedure.
Page 261: Removing As Motor
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.7 Removing AS motor For RPK-(0.4-1.5)FSR(H)M Remove the front panel according to the “7.7.2 Removal of the front panel” chapter. Remove the electrical box according to the “7.7.7 Removing AS motor” chapter. 3 Remove 2 screws fixing the AS motor to remove it. Then pull the AS motor outward and remove it from the shaft of the horizontal louver. 4 When mounting the AS motor, insert the shaft of the AS motor into the D-cut portion of the horizontal louver. Then mount the AS motor in the reverse procedure. For RPK-(2.0-4.0)FSRM Remove the front panel according to the “7.7.2 Removal of the front panel” chapter. Remove the electrical box from the cabinet according to the “7.7.7 Removing AS motor” chapter. 3 Remove 4 screws fixing 2 AS motors to remove them. Then pull the AS motors outward and remove them from the shaft of the horizontal louver.
Page 262: Removing Drain Pan
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.8 Removing drain pan Take care when removing the drain pan, as water may have collected in the drain pan. Do not remove the horizontal louver. Otherwise, some component may be damaged. N O T E Before removing the drain pan, check that the drain hose is not fixed. If the drain hose is firmly fixed, the drain pan cannot be removed. Remove the front panel according to the “7.7.2 Removal of the front panel” chapter.
Page 263: Removing Heat Exchanger
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.9 Removing heat exchanger D A N G E R TURN OFF all power source switches. C A U T I O N • Recover the refrigerant from the unit before the work. After all the refrigerant is recovered, turn OFF all power source switches. •...
Page 264 7 Servicing RPK-FSR(H)M - Wall mounted 7 Release 2 catches on the inside of the piping holder at the rear side of the indoor unit and remove the piping holder. 8 Remove 1 screw fixing the right side of the heat exchanger. Then remove 2 screws fixing the left side of the heat exchanger. Front Side of Indoor Unit (The figures above show the examples with the piping for heat exchanger removed.) Fixing Screw Fixing screw for for Heat Exchanger heat exchanger Fixing Screw Fixing screw for for Heat Exchanger heat exchanger Catches for Piping Holder Catches for piping holder 9 Tilt up the piping holder at the rear side approximately 10 degrees in the direction of the arrow (A) as shown in the figure below. 10 Pull out the heat exchanger with the rear pipings obliquely upward in the direction of the arrow (B) to remove it from the slotted portion. N O T E Make sure that the heat exchanger and the unit body will not be damaged when removing the heat exchanger. 11 When mounting the heat exchanger, mount it in the reverse procedure.
Page 265 7 Servicing RPK-FSR(H)M - Wall mounted For RPK-(2.0-4.0)FSRM 1 Remove the power source wiring, the transmission wiring and the wiring for the remote control switch. 2 Push the portion indicated by “PUSH” on the underside of the unit to release the catches at the lower part of the unit. 3 Remove the flare nuts attached to the rear pipings of the heat exchanger to disconnect the piping. Then lift the indoor unit up and draw it frontward to remove it. Remove the front panel according to the “7.7.2 Removal of the front panel” chapter. Remove the electrical box according to the “7.7.7 Removing AS motor” chapter. 6 Release 2 catches on the inside of the piping holder at the rear side of the indoor unit and remove the piping holder. 7 Tilt up the piping holder at the rear side approximately 10 degrees in the direction of the arrow (A) as shown in the figure below. Catch on bottom side of indoor unit Piping holder Mounting plate “PUSH” Piping holder Approximately 10º Catches on piping holder 8 Remove one (1) screw fixing the right side of the heat exchanger. Then remove two (2) screws fixing the left side of the heat exchanger. 9 Disconnect the catch on the resin plate in the left of the heat exchanger fitted in the cabinet. 10 Take the heat exchanger out of the body as like pulling it up.
Page 266 7 Servicing RPK-FSR(H)M - Wall mounted 11 When mounting the heat exchanger, mount it in the reverse procedure. N O T E Before mounting the heat exchanger, check to ensure that there is no clearance between the heat exchanger and the motor clamp in order to prevent dew drops. Fixing screw for right side Heat Exchanger Fixing screw for left side Heat Exchanger Resin plate of ...
Page 267: Removing Thermistors For Freeze Protection, Gas Pipe, Outlet Air And Inlet Air
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.10 Removing thermistors for freeze protection, gas pipe, outlet air and inlet air For RPK-(0.4-1.5)FSR(H)M Remove the front panel according to the “7.7.2 Removal of the front panel” chapter. Remove the electrical box according to the “7.7.7 Removing AS motor” chapter. 3 Remove the plastic band (A) clamping each thermistor. Plastic Band (A) Plastic band (A) 4 Removing Freeze Protection Thermistor a. The freeze protection thermistor is fixed by thermistor pipe with a thermo clip. Remove the thermistor from the thermo clip. b. ...
Page 268 7 Servicing RPK-FSR(H)M - Wall mounted 6 Removing Inlet Air Thermistor a. The inlet air thermistor is fixed to the receiver PCB holder cover under the electrical box. Its wire runs the back of the receiver PCB holder and enters into the electrical box from the opening for wires on the bottom of the electrical box. Detach two catches on the back of the receiver PCB holder cover to dismount the holder cover. Remove the thermistor fixed into two grooves on the receiver PCB holder cover. b. When to attach inlet air thermistor, take the reverse steps of it. Care to not get the wire caught between the receiver PCB holder cover and the receiver PCB holder. The risk runs of wire disconnection. c. After attaching the thermistor, clamp the wiring for the expansion valve, freeze protection thermistor, gas pipe thermistor and inlet air thermistor with 1 plastic band. Catches on receiver PCB holder cover (2 Portions) Inlet air thermistor Receiver PCB holder (Reverse Side of Receiver PCB Holder) Fix in the position where the head of the thermistor fits into this space. Receiver PCB Holder Cover Inlet at lower side of Electrical Box (When Receiver PCB Holder Cover was removed.) 7 Removing Outlet Air Thermistor Remove the front panel according to the “7.7.2 Removal of the front panel” chapter. b. Lift the front side of the vertical blade up in the direction of the arrow to remove it. c. Remove 1 screw fixing the outlet air thermistor cover to remove the cover. Outlet air thermistor Vertical blade Approx ...
Page 269 7 Servicing RPK-FSR(H)M - Wall mounted d. After removing the insulation, pull out the rubber bush to remove the outlet air thermistor. e. Remove the tape fixing the thermistor to remove the thermistor. f. When attaching the outlet air thermistor, attach it in the reverse procedure. N O T E • Take care during the work so that the wiring for the thermistor will not get caught in the cover. • Make sure that it is 29mm from the upper surface of the thermistor cover to the top of the thermistor. Outlet Air Thermistor Rubber Bush Outlet air thermistor...
Page 270 7 Servicing RPK-FSR(H)M - Wall mounted 4 Removing Gas Pipe Thermistor a. The gas pipe thermistor is fixed to the inside of the thermistor pipe brazed to the gas pipe by the thermistor holder. Remove the thermistor holder from the thermistor. Then, the gas pipe thermistor can be removed. b. When attaching the gas pipe thermistor, attach it in the reverse procedure. Get the thermistor firmly attached to the inside of the piping with the thermistor holder. c. After attaching the thermistor, clamp the wiring for the expansion valve, freeze protection thermistor, gas pipe thermistor and inlet air thermistor with 1 plastic band. Thermistor pipe Resin component fixing Inlet air thermistor inlet air thermistor Freeze protection thermistor Freeze protection thermistor Termo Clip Gas pipe thermistor Plastic band (B) 5 Removing Inlet Air Thermistor a. The inlet air thermistor is fixed to the receiver PCB holder cover under the electrical box. Its wire runs the back of the receiver PCB holder and enters into the electrical box from the opening for wires on the bottom of the electrical box. Detach three catches on the back of the receiver PCB holder cover to dismount the cover out of the holder. Dismount the receiver PCB out of the receiver PCB holder cover that clamp the PCB with three catches. Cut the cable band off and remove the inlet air thermistor. b. When to attach inlet air thermistor, take the reverse steps of it. Care to not get the wire caught between the receiver PCB holder cover and the receiver PCB holder. The risk runs of wire disconnection. Reverse side of receiver PCB holder cover Cable band Inlet air ...
Page 271: Removing Fan And Fan Motor
7 Servicing RPK-FSR(H)M - Wall mounted c. Remove the air outlet thermistor that is fixed with rubber bush from the back of the condensate pan d. When to attach air outlet thermistor, take the reverse steps of it. N O T E • Care that the wire of the air outlet thermistor should not get caught in the front cover. • Commodity filament tape (25mm × 40mm) can be available as thermistor fitment tape. See photo below on to where the tape attaches. Lead Wiring of Outlet ...
Page 272 7 Servicing RPK-FSR(H)M - Wall mounted For RPK-(2.0-4.0)FSRM 1 Remove the electrical box according to the “Removing Electrical Box” chapter. 2 Put Philips screw driver from the air outlet opening. Unscrew the screws that connect the fan and the fan motor. The Philips screw driver goes straight against the cutout of the fan. N O T E The fan motor can be taken out even if the screws are not perfectly disconnected. 3 Detach three screws that fix the motor support 4 Disconnect the catch of the motor support A out of the body. Pull the motor support A out. Put philips screwdriver from the air outlet opening View of Fan from Air Outlet Opening Fan screw Cutout of fan Catch of motor support A Motor support A Motor support...
Page 273 7 Servicing RPK-FSR(H)M - Wall mounted 5 Twist away the motor support B out of the rubber bush. Pull the motor support B out to avoid catch being caught therein. 6 Remove the motor wire out of the clamp to pull the fan motor out. 7 When to mount fan motor and fan, take the reverse steps of it. Degree of pulling out of fan motor lead wire is approximately 20°. See illustration below. 8 From the view of downward of the body, fan places in where the right edge of the fan’s cutout contact the body. After mounting, rotate the fan by the hand to check for no friction. Motor support B Body Catch motor Twist in the direction of the arrows to avoid catch being caught therein. Cross section Cutout of fan Fan places in where the right edge of the fan’s cutout contacts the body (Approx. 20°) (20°) Motor Lead Wire SMGB0137 rev.0 - 05/2021...
Page 274: Removing Electronic Expansion Valve Coil
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.12 Removing electronic expansion valve coil For RPK-(0.4-1.5)FSR(H)M 1 Remove the electrical box according to the “Removal electrical box cover” chapter. 2 Remove the plastic band clamping wiring for the electronic expansion valve. Electronic Expansion Valve Coil Electronic expansion valve coil Plastic band Plastic Band 3 Rotate the expansion valve coil in the direction of the arrow (A) shown in the figure below. After releasing the detents for the expansion valve coil from the projection portions of the expansion valve body, pull up the coil frontward to remove it. N O T E Take care not to twist the piping. 4 Insert the new expansion valve coil for replacement into the expansion valve body. Fit the projection portions into the ...
Page 275 7 Servicing RPK-FSR(H)M - Wall mounted For RPK-(2.0-4.0)FSRM 1 Remove the electrical box according to the “Removal electrical box cover” chapter. 2 Remove the cable band clamping wiring for the electronic expansion valve. 3 The rear pipe for the heat exchanger, the electronic expansion valve, and the piping at the inlet/outlet of the electronic expansion valve are protected with butyl sheets. Remove butyl sheets covering the piping, the expansion valve coil and the expansion valve body. Electrical expansion valve coil 4 Rotate the expansion valve coil in the direction of the arrow (A) shown in the figure below. After releasing the detents for the expansion valve coil from the projection portions of the expansion valve body, pull up the coil to remove it. N O T E Take care not to twist the piping. 5 Insert the new expansion valve coil for replacement into the expansion valve body. Fit the projection portions into the detents with the wiring outlet facing down. N O T E The detents are located 90° apart in a circle and the projections are located 180° apart in a circle. Fit the projection portions into the detents.
Page 276: Removing Horizontal Louver
7 Servicing RPK-FSR(H)M - Wall mounted 7.7.13 Removing Horizontal Louver N O T E • For RPK-(0.4-1.5)FSR(H)M Do not remove the horizontal louver when removing the drain pan. Removing the horizontal louver will result in component failures. • For RPK-(2.0-4.0)FSRM Do not lose the bearings for each shaft at the right, middle, left and far left. 1 Open the upper and lower horizontal louver slightly.
Page 277: Rpf(I)-(1.0-2.5)Fsn2E - Floor And Floor Concealed Type
7 Servicing RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type 7.8 RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type 7.8.1 Removal of the air inlet grille RPF-(1.0-2.5)FSN2E 1 Loosen the screws on the securing plate of the right part of the grille then remove the plates. 2 Press the button on both sides of the grille in the direction indicated by the arrow. The grille can be opened at a 30° angle. 3 Remove the air inlet grille from the hinges. Knob 7.8.2 Removal of the air filter RPF-(1.0-2.5)FSN2E The air filter is located inside the air inlet grille. Remove the air inlet grilles as indicated in section “7.8.1 Removal of the air inlet grille”.
Page 278: Removal Of The Front Panel
7 Servicing RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type 7.8.4 Removal of the front panel 1 Remove the central panel air filter in line with the instructions given in chapter “7.8.2 Removal of the air filter”. 2 Remove the screws from the lower part of the front panel. Front panel N O T E Screw • RPF-(1.0-2.5)FSN2E: 4 screws. Screw • RPFI-1.0FSN2E: 9 screws. • RPFI-1.5FSN2E: 10 screws. 3 Remove the 11 set screws and remove the front panel. Front lower panel 7.8.5 Removal of the fan motor Remove the air inlet grille as indicated in chapter “7.8.1 Removal of the air inlet...
Page 279: Removal Of The Printed Circuit Board (Pcb)
7 Servicing RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type 7.8.6 Removal of the printed circuit board (PCB) Remove the air inlet grille as indicated in section “7.8.1 Removal of the air inlet grille”. Remove the air filter as indicated in section “7.8.2 Removal of the filter”. Remove the front panel as indicated in section “7.8.4 Removal of the front panel”. 4 Remove the side panel, removing the 3 set screws and pulling the panel downwards. 5 Remove the panel from the electrical box after removing the four Electrical box panel set screws. 6 Remove the 2 set screws from the electrical box and release the attachment from the top of the box. Turn the electrical box at a ...
Page 280: Kpi-(252-2002)(E/X)4E - Energy Recovery And Active Energy Recovery Ventilation Units
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9 KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.1 System description An example of the system is shown below. Make sure the system has been checked by a HITACHI distributor. Exchange mode Ventilation bypass mode The air returning from the indoor part passes through the total The air from indoors is expelled without heat exchange. heat exchanger unit and is expelled outdoors. The outdoor air is supplied through the total heat exchanger. Damper Damper Supply air Exhaust air Supply air Exhaust air Outdoor air Return air Outdoor air Return air Automatic selection mode (Factory-set). The operating mode is selected automatically according to the temperature conditions (outdoor, indoor and set).
Page 281: Removal Of Heat Exchanger
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.4 Removal of heat exchanger 1 Pull the hinges back. Open and remove the service cover (b). C A U T I O N The service cover (b) is not fixed, pay attention when pull the hinges back because the cover can fall. 2 Hold onto the handle. 3 Remove the two total heat exchanger elements from the main unit. 7.9.5 Removal of the air filter 1 Pull the hinges back. ...
Page 282: Removal Of The Float Switch (X4E Series Only)
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 5 Draw out the air filters (2 pieces) which are located at the bottom of the heat exchanger elements. 7.9.6 Removal of the float switch (X4E series only) 1 Remove the 4 screw from the service cover (a) situated closed the SA duct connector and remove the service cover. 2 Float switch is on the bottom left side, close de service window. 3 Unscrew the nut on the float switch and remove from its bracket. 4 Unplug the connector that is inside the protection cap and take out the float switch. SMGB0137 rev.0 - 05/2021...
Page 283: Removal Of The Damper Motor
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.7 Removal of the damper motor 1 Unscrew the 6 screw form the service cover (f). 2 Unplug the connector that is inside the protection cap. 3 Unscrew the 2 screws that are fixing the motor brackets 4 Separate the damper motor from the housing 5 Remove the damper motor SMGB0137 rev.0 - 05/2021...
Page 284: Removal Of The Electrical Box
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.8 Removal of the electrical box 1 Unscrew the 2 screw from the service cover (c) 2 Unplug all connectors. 3 Disconnect the power supply and communication cables from the terminal board 4 Loosen all four screws 5 Move the electrical box slightly upwards 6 Pull it out towards yourself 7.9.9 Removal of the PCB 1 Remove the electrical box 2 Disconnect all the connectors in the PCB. 3 Remove the PCB by unlocking the four (4) plastic holders (*) per PCB C A U T I O N •...
Page 285: Removal Of The Fan Motor
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.10 Removal of the fan motor 1 Remove all 4 screws from the fan service cover (d) 2 Unplug the connector that is inside the protection cap 3 Remove all 4 screws from the fan assy (e) N O T E Use a 5 mm allen key (hexagon key) 4 Remove the fan with the assembled cover C A U T I O N The fan kit is not fixed, pay attention when all 4 screws are removed, the fan can fall.
Page 286: Removal Of The Dx-Coil Module (X4E Series Only)
7 Servicing KPI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units 7.9.11 Removal of the DX-Coil Module (X4E series only) 1 Unscrew the 4 screw from the service cover (a) situated closed the SA duct connector and remove the service cover. 2 Unplug the connector that is inside the protection cap 3 Cross the connector thought the hole in the end wall. 4 Unscrew all 4 screw (2 in on side and 2 in the other side) 5 mm D A N G E R • When unscrew all 4 screw pay attention because the DX- Coil module is not fixed,and can fall.
Page 287: Dx-Interface
7 Servicing DX-Interface 7.10 DX-Interface 7.10.1 Structure and part names DX-Interface EXV-(2.0-10.0)E2 Nº Name Nº Name Control box PCB2 Control box cover Expansion valve box Cable gland Terminal board 3 Terminal board 1 Terminal board box and cover PCB1 Expansion valve box cover Terminal board 2 Refrigerant connections Transformer Expansion valve device 7.10.2 Removal of the electrical components Control box 1 Remove the control box cover unscrewing the 4 screws. ...
Page 289: Troubleshooting
8 Troubleshooting T r o u b l e s h o o t i n g Index Electronic expansion valve check procedure ..................280 Procedure for checking fan motors in indoor units ................280 Inspection of other components ......................282 Alarm codes displayed in the remote control switch ................
Page 290: Electronic Expansion Valve Check Procedure
Name and abbreviation of the cable colours used: Black Brown Yellow Green Blue Grey Orange White Indoor units Power output Wiring diagram Cable number Resistance (Ω) RCI-1.0FSR RCI-1.5FSR RCI-2.0FSR 57 W DC motor — — RCI-2.5FSR RCI-3.0FSR RCI-4.0FSR RCI-5.0FSR 127 W DC motor —...
Page 291 8 Troubleshooting Procedure for checking fan motors in indoor units Indoor units Power output Wiring diagram Cable number Resistance (Ω) RPC-1.5FSR 50 W DC motor — — RPC-2.0FSR RPC-2.5FSR 80 W DC motor — — RPC-3.0FSR RPC-4.0FSR RPC-5.0FSR 160 W DC motor —...
Page 292: Inspection Of Other Components
8 Troubleshooting Inspection of other components Indoor units Power output Wiring diagram Cable number Resistance (Ω) 231.70 BLK1-2RED RPF(I)-1.0FSN2E 20 W 198.70 RED2-3WHT 136.20 WHT3-4BLU 71.20 BLU4-5ORN RPF(I)-1.5FSN2E 28 W 202.40 ORN5-6YEL to 20 97.90 BLK1-2RED 138.10 RED2-3WHT RPF(I)-2.0FSN2E 61.60 45 W WHT3-4BLU RPF(I)-2.5FSN2E...
Page 293: Alarm Codes Displayed In The Remote Control Switch
8 Troubleshooting Alarm codes displayed in the remote control switch 8.4 Alarm codes displayed in the remote control switch The list of the alarms which are actually shown in the remote control switch display may vary depending on the models and combinations of indoor and outdoor units.
Page 294 8 Troubleshooting Alarm codes displayed in the remote control switch Code Category Content of Abnormality Leading Cause Abnormality of the compressor thermistor Abnormality of high pressure sensor Abnormality of outdoor air thermistor Abnormality of discharge gas thermistor Sensor on on top of compressor Incorrect wiring, disconnecting wiring, Outdoor Unit Abnormality of heat exchanger liquid pipe...
Page 295 8 Troubleshooting Alarm codes displayed in the remote control switch Code Category Content of Abnormality Leading Cause Driver IC error signal detection (protection for overcurrent, voltage decrease, short circuit), instantaneous overcurrent, Activation of fan controller protection disconnected wire or incorrect wiring between control PCB and inverter PCB, incorrect wiring or fan motor abnormality.
Page 296: Dx-Interface Exv-(2.0-10.0)E2 Or Kpi-(E/X)4E Alarm Codes
8 Troubleshooting DX-Interface EXV-(2.0-10.0)E2 or KPI-(E/X)4E alarm codes 8.5 DX-Interface EXV-(2.0-10.0)E2 or KPI-(E/X)4E alarm codes Code KPI- KPI-4E Category Type of abnormality Main cause number KIT2 Active Float switch activation Indoor Activation of protection device (high water level in drain hose or abnormality in drain pipe, float switch or drain pan).
Page 297: Maintenance Notes
9 Maintenance notes M a i n t e n a n c e n o t e s Index Regular equipment maintenance ......................288 9.1.1 Necessary tools, equipment and consumable for regular maintenance ............288 Indoor cleaning ............................ 289 9.2.1 Cleaning the built-in 4-way indoor unit RCI(M) ....................
Page 298: Regular Equipment Maintenance
9 Maintenance notes Regular equipment maintenance 9.1 Regular equipment maintenance 9.1.1 Necessary tools, equipment and consumable for regular maintenance Tools Tool Remarks Water pump for cleaning Use of a water pump with a tank is recommended Water tank with clean water Approx.
Page 299: Indoor Cleaning
9 Maintenance notes Indoor cleaning Equipment Equipment Remarks Cleaning water manifold Insert the bar Depending on the type of unit to be cleaned, use a duct-type, built-in 2-way type, wall type or ceiling type manifold. The lower part of the Ø120 hole must be covered with a piece of felt to insert the nozzle of the gun Insert the bar Transparent...
Page 300 9 Maintenance notes Indoor cleaning Cleaning the indoor unit N O T E Wear gloves to avoid injuries caused by the heat exchanger fins. Place a vinyl sheet around the heat exchanger to prevent the cleaning water from splashing the insulation surface and drain pump.
Page 301 9 Maintenance notes Indoor cleaning Hang the cleaning water manifold from the indoor unit. Tie the rope to the suspension bolts of the indoor unit and drop downwards. Insert the support bars into the holes in the water manifold. Tie the rope to the support bar of the water manifold and hang the manifold.
Page 302: Cleaning The Built-In 2-Way Indoor Unit (Rcd)
9 Maintenance notes Indoor cleaning After cleaning remove all remains of water. 1 After cleaning, fit the drain pan by lowering the rope. 2 Dry the remains of any water on the indoor unit. 3 Check the insulation of the drain pump using a megohmmeter. Check that the insulation is above 1 MΩ when 500V are applied. 4 Connect the wiring. Drain pan 5 Perform the neutralisation treatment after cleaning.
Page 303 9 Maintenance notes Indoor cleaning Motor panel Place a vinyl sheet around the heat exchanger to prevent the cleaning water from splashing the insulation surface and drain pump. Secure the vinyl sheet to the side plate of the exchanger using adhesive tape and seal the gap between the vinyl sheets in the same manner.
Page 304: Cleaning Of The Wall-Type Indoor Unit (Rpk)
9 Maintenance notes Indoor cleaning 9.2.3 Cleaning of the wall-type indoor unit (RPK) Preliminary procedure Place a vinyl sheet on the floor to protect the furniture and other items from the cleaning water before starting this job. Remove each part as indicated in the section. “7.7 RPK-FSR(H)M - Wall mounted” Remove the front panel as indicated in section “7.8.2 Removal of the air filter”.
Page 305: Cleaning The Floor Console And Floor Concealed Console Indoor Unit Rpf(I)
9 Maintenance notes Indoor cleaning Dry the remains of any water on the indoor unit. Check the insulation of the drain pump using a megohmmeter. Check that the insulation is above 1 MΩ when 500V are applied. Connect the wiring. Perform the neutralisation treatment after cleaning. After cleaning, fit the drain pan by lowering the rope. Perform the neutralisation treatment after cleaning. 9.2.4 Cleaning the floor console and floor concealed console indoor unit RPF(I) Remove the front panel in line with the instructions given in chapter “7.9.4 Removal of heat exchanger”...
Page 306: Cleaning Of The Ceiling-Type Indoor Unit (Rpc)
9 Maintenance notes Indoor cleaning 9.2.5 Cleaning of the ceiling-type indoor unit (RPC) Preliminary procedure Place a vinyl sheet on the floor to protect the furniture from the cleaning water before starting this job. Remove the side panels. Remove the louver. Open the air inlet grille as indicated in chapter “Removal of the air filter”. Remove the lower panel and drain pan in line with the instructions given in chapter “Removal of the thermistors from the liquid and gas pipes”.
Page 307 9 Maintenance notes Indoor cleaning Cleaning the indoor unit N O T E Wear gloves to avoid injuries caused by the heat exchanger fins. Place a vinyl sheet around the electrical components except the drain pan to protect them from splashed cleaning water. Secure the motor panel using adhesive tape.
Page 308 9 Maintenance notes Indoor cleaning RPI - Ducted indoor unit type D A N G E R Wear gloves to avoid injuries when handling components. Work prior to cleaning Turn off the power supply switches before starting maintenance work and fit the appropriate safety locks and warnings. Wait 5 minutes after turning off the power supply switches. Place a vinyl sheet on the floor to protect the furniture and other items from the cleaning water. Remove the following components: 1 Side panel. 2 Discharge air grille.
Page 309: Cleaning Of Kpi Units
9 Maintenance notes Cleaning of KPI units 9.3 Cleaning of KPI units Filter maintenance Preliminary procedures Turn off all power supply switches before starting maintenance work. Wait 5 minutes after stopping the unit before starting the cleaning procedure. Do not start the system without the air filter to avoid blockages in the total heat exchanger. D A N G E R Wear gloves to avoid injuries when handling the filter. N O T E •...
Page 310 9 Maintenance notes Cleaning of KPI units Cleaning energy recovery ventilation unit elements N O T E Clean the element once or more every two years to prevent the air flow and efficiency from dropping. C A U T I O N •...
Page 311: Econofresh Kit
9 Maintenance notes Econofresh kit 9.4 Econofresh kit D A N G E R Wear gloves to avoid injuries when handling components. C A U T I O N • Clean the air filter more than once a year. • Clean the heat exchanger unit once or more every two years.
Page 312: Cleaning Agents For Heat Exchanger
Acrylonitrile Butadiene Styrene (ABS) and Polystyrene (PS). (*3): Personal Protection Equipment (PPE) must be used whenever manipulating chemical products, in order to ensure safety. 9.6.2 Particularities and benefits HITACHI has ben tested the effect of cleaning benefits using special fin cleaners for hydrophilic coated fins on the indoor units. Those tests were focused on the wettability, and confirmed as follows: • Cleaning aluminium fins makes its hydrophilicity possible to recover. • The hydrophilic coating is not damaged even if it’s washed repeatedly by using special cleaning special agents for ...
Page 314 Hitachi certifies that our products have met EU consumer safety, health and environmental requirements. Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. is certified with: ISO 9001 of AENOR, Spain for its Quality Management accordance with the standard. ISO 14001 of AENOR Spain for its Environmental Management systems accordance with the standard.

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Hitachi RCI-1.0FSR Service Manual

1 General Information

2 Optional Accessories

3 Electrical and Control Settings

4 Control System

5 Optional Functions

6 Commissioning

7 Servicing

8 Troubleshooting

9 Maintenance Notes

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Summary of Contents for Hitachi RCI-1.0FSR