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Summary of Contents for Hitachi air core 700
- Page 1 – OPERATION INSTALLATION & MAINTENANCE MANUAL – SINGLE SPLIT INVERTER SERIES INDOOR UNITS MODELS MEDIUM ESP DUCTED TYPE PPIM-2.0UFA1NQ PPIM-2.5UFA1NQ PPIM-3.0UFA1NQ PPIM-4.0UFA1NQ PPIM-5.0UFA1NQ PPIM-6.0UFA1NQ EN INSTRUCTION MANUAL Scan the code to get the electronic manual. P02170Q...
- Page 2 Hitachi strives for a continuous improvement in design and performance of products and reserves the right to change the specifications without notice. • Hitachi is not liable for occasional damage or accidents pertaining to the air conditioning due to its operation in a specific environment. •...
- Page 3 DANGER • Before reading the installation manual, please do not conduct installation works such as connections of refrigerant piping, drain pipes and wiring. Any violation may lead to system leakage, electrical failure or fire. • Do not pour water into the indoor/outdoor unit. This product contains electrical components and if wet, can cause serious electrical shock.
- Page 4 • This unit <PPIM-UFA1NQ> is a PARTIAL UNIT AIR CONDITIONER, complying with PARTIAL UNIT requirements of IEC 60335-1 and IEC 60335-2-40, and must only be connected to other units that have been confirmed as complying to corresponding PARTIAL UNIT requirements of IEC 60335-1 and IEC 60335-2-40.
- Page 5 parts may result in refrigerant leakage. (c) Near machinery emitting electromagnetic waves. Electromagnetic waves may disturb the operation of the control system and cause the unit to malfunction. (d) Where flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or where volatile flammables such as thinner or gasoline are handled.
- Page 6 Precautions for R32 This air conditioner uses R32 flammable refrigerant. Air conditioner with R32 refrigerant, if not be treated carefully, may cause serious harm to the human body or surrounding things. Please read the following instructions carefully before installing, using and maintaining. WARNING •...
- Page 7 Otherwise, the cooling or heating capacity will be weakened, even cause system stop operating or safety hazard. • Maintenance or repair of air conditioner using R32 refrigerant must be carried out after security check to minimize risk of incidents. • Ensure no following objects under the indoor unit: ○...
- Page 8 externally into the atmosphere. • Anti-static precautions is necessary for installing and maintenance, for example, wear pure cotton clothes and gloves. • If R32 refrigerant leakage occurs during the installation, operators shall immediately detect the concentration in indoor environment until it reaches a safe level. If the leakage affects the performance of the machine, please immediately stop the operation, and the air conditioner must be vacuumed firstly and be returned to the maintenance station for processing.
- Page 9 ○ If a leak is suspected, all naked flames shall be removed/extinguished. ○ If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated in a part of the system remote from the leak. Removal of refrigerant shall be according to this manual.
- Page 10 • Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. For appliances containing flammable refrigerants, ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. •...
- Page 11 The standard operation procedure of the unit is explained in this manual. In case of any problem, please contact local dealer. Hitachi shall not be liable for defects arising due to alterations made by the customer without Hitachi’s consent in a written form.
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Page 12: Table Of Contents
Table of Contents Operation Manual 1. Safety Summary .............................1 2. Introduction to Units ............................1 3. Component Name ............................1 3.1 Indoor Unit ...............................1 3.2 Wired remote controller or Wireless Controller ..................1 4. Before Operation ............................2 5. Operation Method ............................2 6. Automatic Control ............................2 7. -
Page 13: Operation Manual
1. Safety Summary Operation Manual 1. Safety Summary DANGER • Preventing water into indoor/outdoor unit , otherwise the water may lead to short circuit. • Do not tamper with or adjust safety devices inside the indoor/outdoor unit as it may cause serious accidents. •... -
Page 14: Before Operation
4. Before Operation 4. Before Operation CAUTION • Supply electrical power to the system for approximately 12 hours before start-up after long shut down. Do not start the system immediately after power supply, it may cause a compressor failure, because the compressor is not heated well. -
Page 15: Filter Cleaning
7. Filter Cleaning 7. Filter Cleaning Turn off the main power switch before taking out the filter. The indication, “ ” is shown on the display of the wired remote controller after passing the time set on the wired remote controller. (Default Setting Time of PPIM: 1,200 hours) After cleaning the air filter, perform filter sign reset according to the chapter of the wired remote controller PC-ARFG2-Z. -
Page 16: Installation And Maintenance Manual
1. Safety Summary Installation and Maintenance Manual 1. Safety Summary WARNING • Do not conduct installation works such as connections of refrigerant piping, drain pipes and wiring before reading the installation manual. • Ensure that the grounding wires are connected properly and firmly. NOTICE •... -
Page 17: Handling Of The Indoor Unit
4. Indoor Unit Installation NOTICE • Do not place anything on the unit. 3.2 Handling of the Indoor Unit WARNING • Before the installation and commissioning, do not place any irrelevant materials inside the indoor unit and ensure there are no sundries in the indoor unit as it may lead to fire or accident. NOTICE •... -
Page 18: Initial Inspection
4. Indoor Unit Installation 4.2 Initial Inspection • Install the indoor unit in a place that facilitates operation and maintenance as shown in figure 4.1. Unit: mm Model: 3.0~6.0 Model: 2.0~2.5 Electrical cabinet Electrical cabinet Maintenance openings Maintenance openings ( ≥450) ( ≥450) Rear Rear... - Page 19 4. Indoor Unit Installation 4.3.2 Position of Hanging Bolt and Pipe Connection 1. This indicates the position of hanging bolt, connecting position of the refrigerant pipe as well as that of the drain pipe. 2. Installation size is shown in figure 4.3. Size Unit: mm a(Size of suspension bolt)
- Page 20 4. Indoor Unit Installation Stand bar (2) Indoor unit installation Suspension bolts * As shown in the following figure, Stand bar install the left bracket into nut and gasket of hanging bolt. * After ensuring that the left bracket Nuts and is correctly installed on the nut and Indoor unit Washers...
- Page 21 4. Indoor Unit Installation CAUTION • If a lower sound level is further required, install silencer (field-supplied). • Design duct arrangement as “Unit External Static Pressure=Pressure Drop of Duct+Pressure Drop of Air Outlet and Air Inlet”. If duct design is not appropriate, big sound and splash will occur. •...
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Page 22: Refrigerant Piping Work
5. Refrigerant Piping Work 5. Refrigerant Piping Work DANGER • Use only R32 refrigerant. During leakage and air tight test, no oxygen, acetylene, flammable or poisonous gases must be charged, as these gases may cause explosion. It is recommended to use dry nitrogen for test. 5.1 Piping Materials 1. - Page 23 5. Refrigerant Piping Work Perform the flaring work as shown below. Unit: mm (in.) º º Diameter -0.4 Ød ΦA Ø6.35(1/4) 0.4 ~ 0.8R Ø9.53(3/8) 13.2 Ø12.7(1/2) 16.6 Φd Ø15.88(5/8) 19.7 Figure 5.3 Flaring Processing 2. As shown in figure 5.4, use two wrenches to fasten nuts. Pipe Diameter (mm (in.)) Torque (N·m) Ø6.35(1/4)
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Page 24: Drain Piping
6. Drain Piping 6. Drain Piping 1. The drain pipe connection position is shown in figure 6.1. 2. Prepare a PVC pipe (Outer diameter: 32mm). 3. Fix PVC pipe to the drain pipe with the adhesion agent and clamps provided by the factories, the downward slope of the drain pipe is 1/25 - 1/100. -
Page 25: Electrical Wiring
7. Electrical Wiring Indoor Unit Auxiliary Drain Pan (Field-Supplied) To the Atmosphere Figure 6.2 Auxiliary Drain Pan NOTICE • Install the drain pipe at a downward slope, as the condensate water may flow backwards and leak into the room in case of close up of the indoor unit. •... -
Page 26: General Check
7. Electrical Wiring • Turn completely OFF the power source to prevent an electrical shock when opening the service cover to perform the electrical work or the maintenance. • Take care not to pinch electrical wirings when attaching the service cover. It may cause an electrical shock or fire. -
Page 27: Position Of Electrical Wiring Connection
7. Electrical Wiring NOTES: • Follow the local codes and regulations when selecting field wires. • Power cord selection shall not be lighter than IEC60245-1 provisions of the neoprene sheath cable 57 requirements, and the power cord should be copper wire. •... -
Page 28: Wiring Connection
7. Electrical Wiring (5) When the standard wire is used for field-wiring connection, the M4 and M5 crimping terminal should be used. When a single wire is used, make it into the shape as shown in the figure below and connect it to tighten the washer uniformly. The screws at the terminal block should be rotated according to the tightening torque as shown in the table below: Connect it with the Connect it directly... -
Page 29: Dip Switch Setting
7. Electrical Wiring NOTE: • The ring core needs to be installed on the transmission cable between the fixed wire clamp and TB2, where additional insulation rubber is peeled off. [Procedure] Insert the transmission cable into the ring core as shown in the right figure before connecting Band Transmission to the terminal board. - Page 30 7. Electrical Wiring 6. Unit type code setting (DSW4) As this is already set before shipment, no setting is required. This switch is used for setting the unit type code which corresponds to the type of the indoor unit. PPIM 2 3 4 7.
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Page 31: Setting Of External Static Pressure
8. Test Run 7.6 Setting of External Static Pressure (1) This function is available for airCore 700 ducted indoor units, please refer to the " chapter25.ESP Setting " of Installation & Maintenance Manual of the wired remote controller for details. (2) The air flow volume can be changed according to the external static pressure by setting the item code to “C5”... - Page 32 Cord Clamp (big) 1189580 Hitachi-Johnson Controls Air Conditioning, Inc. Add.: 1-16-1, Kaigan Minato-ku, Tokyo, Japan Specification in this catalogue are subject to change without notice, in order that Hitachi-Johnson Controls may bring the latest innovation to customers. 2023.10 Printed in China...