Page 1 FILE NO. SVM-18076-3 SERVICE MANUAL AIR-CONDITIONER (MULTI TYPE) <SUPER MODULAR MULTI SYSTEM - e> Stand alone type • Outdoor Unit • Model name: <Heat Pump Model> MMY-SAP0806HT8(J)P-E MMY-SAP0806HT8(J)P-TR MMY-SAP1006HT8(J)P-E MMY-SAP1006HT8(J)P-TR MMY-SAP1206HT8(J)P-E MMY-SAP1206HT8(J)P-TR...
Page 2: Table Of Contents
Contents SAFETY CAUTION ........... . 6 Refrigerant (R410A) .
Page 3 6-2-7. External master ON/OFF Control ..........69 6-2-8.
Page 4 TROUBLESHOOTING ..........126 8-1.
Page 5 This service manual provides relevant explanations about new outdoor unit (SMMS-e Stand alone type). Please refer to the following service manuals for each indoor units. SVM File No. <4-way Cassette Type> (MMU-AP***4HP-E) (Made in Thailand model) SVM-13011 (MMU-AP***4HY-C) (Made in China model) A10-1402 (MMU-AP***2H-C) (Made in Japan model)
Page 6: Safety Caution
• The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation...
Page 7 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
Page 8 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies Disconnect all remote electric...
Page 9 PRECAUTIONS FOR SAFETY The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.
Page 10 WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (*1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and / or other problems.
Page 11 If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical parts box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, put a sign in place so that no- Do not bring one will approach the work location before proceeding with the work.
Page 12 When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to execute ventilation.
Page 13 Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result. Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner.
Page 14 Declaration of Conformity Manufacturer: TOSHIBA CARRIER (THAILAND) CO., LTD. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Amphur Muang, Pathumthani 12000, Thailand Authorized Representative / Nick Ball TCF holder: Toshiba EMEA Engineering Director Toshiba Carrier UK Ltd. Porsham Close, Belliver Industrial Estate, PLYMOUTH, Devon, PL6 7DB.
Page 15 Specifications Sound power level (dBA) Model Weight (kg) Cooling Heating MMY-SAP0806HT8(J)P-E MMY-SAP0806HT8(J)P-TR MMY-SAP1006HT8(J)P-E MMY-SAP1006HT8(J)P-TR MMY-SAP1206HT8(J)P-E MMY-SAP1206HT8(J)P-TR - 15 -...
Page 16 CARRYING IN THE OUTDOOR UNIT CAUTION Handle the outdoor unit carefully, observing the following items. • When using a forklift or other machinery for loading/unloading in transportation, insert the fork of the forklift into the rectangular holes for handling as shown below. •...
Page 17 Weight centre (Unit : mm) Anchor bolt position Model type MMY-SAP0806HT8(J)P* MMY-SAP1006HT8(J)P* MMY-SAP1206HT8(J)P* - 17 -...
Page 18 SELECTION OF PIPE SIZE Coupling size of brazed pipe Connected section External size Internal size (Unit: mm) Connected section External size Internal size Standard outer dia. Min. depth of Min. thickness of connected Standard outer dia. insertion of coupling Oval value copper pipe (Allowable difference) +0.04...
Page 19 Adding refrigerant After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant. Calculation of additional refrigerant charge amount Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.
Page 20 Example (1006 type) • • Ø12.7 : 10 m Ø12.7 : 10 m Ø9.5 : 5 m Ø9.5 : 5 m Ø9.5 : 5m Ø9.5 : 5 m Ø6.4 : 4m MMU-AP0274HP-E MMU-AP0274HP-E MMU-AP0274HP-E MMD-AP0096BHP-E Additional refrigerant charge amount at site (kg) = [1] + [2] + [3] [1].
Page 21: Refrigerant (R410A)
Refrigerant (R410A) This air conditioner adopts a HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to refrigerant (R410A) The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
Page 22 4. Tools (1) Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.
Page 23: Wiring Diagrams
Wiring Diagrams 1-1. Outdoor Unit - 23 -...
Page 24: Parts Rating
Parts Rating 2-1. Outdoor Unit Name Model Specifications ○ Compressor RA421A3TB‐20MD Output:2.1kW×2 ○ 1 Compressor RA421A3TB‐20MD Output:3.1kW×2 ○ Compressor RA421A3TB‐20MD Output:3.9kW×2 ○ ○ ○ 2 4‐way valve coil AC220‐240V 50Hz 2‐way valve coil SV51 ○ ○ ○ AC220‐240V 50Hz 2‐way valve coil SV2, 3D ○ ○ ○ AC220‐240V 50Hz 2‐way valve coil SV41, 42, 52 ○...
Page 25: Outdoor Inverter
2-2. Outdoor Inverter Name Model Specifications ○ ○ ○ 1 Power supply terminal block JXO‐6004 AC600V/75A,4P ○ ○ ○ 2 Communication terminal block JXO‐B2J AC30V(or no more than DC42V)/1A,6P ○ ○ ○ 3 Reactor(For comp. & fan) CH‐79 5.8mH/14A ‐ ○ ○ ○ 4 P.C.board(Noise filter) MCC‐1608 ‐ ○ ○ ○ 5 Line filter 4.0mH/AC400V/35A ‐...
Page 26: Parts Layout In Outdoor Unit
2- . Parts Layout in Outdoor Unit - 26 -...
Page 27: Parts Layout In Outdoor Inverter
2-4. Parts Layout in Outdoor Inverter - 27 -...
Page 28: Outdoor (Inverter) Print Circuit Board
2-5. Outdoor (Inverter) Print Circuit Board 2-5-1. Interface P.C. board (MCC-1673) Sensor input PMV4 output PMV1 output CN507 TD2 CN503 TK2 CN532 Option input/output TD1 CN502 TK1 CN531 TE1 CN520 TS1 CN505 CN511 CN508 CN510 CN513 TL1 CN523 CN514 CN509 CN512 High pressure SW UART communication...
Page 29: Inverter P.c. Board For Compressor (Mcc-1669) A3-Ipdu
2-5-2. Inverter P.C. board for compressor (MCC-1669) A3-IPDU Reactor connecting Power supply Power supply input L3 terminal output to FAN CN13 CN19 CN21 Power supply input L2 CN12 Power supply input L1 CN11 Compressor output W-phase CN211 Compressor output V-phase CN212 Reactor connecting terminal...
Page 30: Inverter P.c. Board For Fan Motor (Mcc-1659) Fan-Ipdu
2-5-3. Inverter P.C. board for fan motor (MCC-1659) FAN-IPDU UART communication UART communication For inverter between interfaces address setting between A3-IPDU CN851 SW800 CN852 Power supply Input from A3-IPDU CN12 Fan motor Output U-phase CN303 Fan motor Output V-phase CN302 Fan motor Output W-phase CN301...
Page 31: Noise Filer Pc Board (Mcc-1608 -A, -B)
2-5-4. Noise Filter PC board (MCC-1608 -A, -B) Power supply Power supply Power supply Power supply Power supply Power supply input L1 input L2 input L3 output to FAN output to I/F output to FAN CN31 CN32 CN33 CN24 CN22 CN23 MCC-1608-B MCC-1608-A...
Page 32: Refrigerant Piping Systematic Drawing
Refrigerant Piping Systematic Drawing Fan motor Right side (TO) Reducer Left side (PMV1) (TE1) (SV51) (SV52) Reducer 4-way valve (TL1) High-pressure (TS1) sensor Oil separator Low-pressure (TS3) (SV2) (SV3D) (SV41) (SV42) Accumulator High- High- pressure (TD2) (TD1) pressure switch switch Sub cool Compressor Compressor...
Page 33 Explanation of Functional Parts (Hot gas bypass) (Connector CN311: White) 1) Low pressure release function 2) High pressure release function 3) Gas balance function during stop time (Connector CN322: White) SV3D 1) Reserves oil in the oil separator during OFF time. 2) Returns oil reserved in the oil separator to the compressor during ON time.
Page 34 Indoor Unit Liquid Gas side side Strainer Capillary tube Heat exchanger at indoor side Pulse Motor Valve (PMV) Sensor (TCJ) Sensor (TC2) Sensor (TC1) Sensor Fan motor (TA) CAUTION MMU-AP007YH, AP012YH type air conditioners have no TC2 sensor. Explanation of functional parts in indoor unit Pulse Motor Valve (Connector CN082 (6P): Blue) 1) Controls superheat in cooling operation...
Page 35: Combined Refrigerant Piping System Schematic Diagrams
Combined Refrigerant Piping System Schematic Diagrams 4-1. Normal Operation (COOL Mode / DEFROST Mode) - High Outside Air Temperature (Roughly 20°C or Above) Fan motor Right side Main heat exchanger PMV1 Left side Main heat exchanger SV51 SV52 4-Way valve Check Joint Check Joint...
Page 36: Normal Operation (Cool Mode) - Low Outside Air Temperature (Roughly Below 20°C)
4-2. Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly Below 20°C) Fan motor Right side Main heat exchanger PMV1 Left side Main heat exchanger SV51 SV52 4-Way valve Check Joint Check Joint Pressure sensor Pressure sensor (high pressure) (low pressure) Accumulator SV3D...
Page 37: Normal Operation (Heat Mode)
4-3. Normal Operation (HEAT Mode) Fan motor Right side Main heat exchanger PMV1 Left side Main heat exchanger SV51 SV52 4-Way valve Check Joint Check Joint Pressure sensor Pressure sensor (high pressure) (low pressure) Accumulator SV3D separetor SV41 SV42 Sub cool heat exchanger Compressor Compressor...
Page 38: Normal Operation (Hot Gas Defrost Mode)
4-4. Normal Operation (HOT GAS DEFROST Mode) Fan motor Right side Main heat exchanger PMV1 Left side Main heat exchanger SV51 SV52 4-Way valve Check Joint Check Joint Pressure sensor Pressure sensor (high pressure) (low pressure) Accumulator SV3D separetor SV41 SV42 Sub cool heat exchanger...
Page 39: Control Outline
Control Outline Outdoor Unit Item Description of operation, numerical data, and other information Remarks 1. PMV1 control 1. Pulse 1) During air conditioner operation, the pulse count of a PMV1 (pulse motor valve 1) motor valve is controlled between 120pls and 3000pls. (PMV) control 2) During cooling, the PMV opening is controlled on the basis of measurements...
Page 40 Item Description of operation, numerical data, and other information Remarks 1. Cooling fan control 2. Outdoor 1) Outdoor fan speed (mode) is controlled on the basis of measurements provided by fan control the PD pressure sensor. 2) For a specified period after the start of cooling operation, the outdoor unit controls outdoor fan speed (mode) on the basis of measurements provided by the PD pressure sensor.
Page 41 Item Description of operation, numerical data, and other information Remarks 1) Judgment as to whether an optimum amount of oil is present in the compressor 4. Oil level cases is made on the basis of the temperature readings of sensors TK1 and TK2. detection 2) Control function is performed whenever at least one compressor is in operation.
Page 42 Item Description of operation, numerical data, and other information Remarks This control function is aimed at preventing compressors of the outdoor unit from 5. Oil running out of oil, and is basically performed by opening/closing solenoid valve equation SV3D. There are three control patterns as described below. control 1.
Page 43 Item Description of operation, numerical data, and other information Remarks 1. Defrosting commencement conditions 7. Defrosting • Frost formation temperature is -1.5 °C. control • During heating operation, the cumulative duration of operation in which TE1 sensor temperature falls below frost formation temperature is measured, and When the (reverse amount of frost formation exceeds a predetermined value or when 240 minutes defrosting...
Page 44 Item Description of operation, numerical data, and other information Remarks 9. Release 1. SV2 gas balance control valve control This control function is aimed at achieving gas balance by opening SV2 while compressors are turned off so as to reduce their startup load the next time they are turned on.
Page 45 Item Description of operation, numerical data, and other information Remarks 9. Release 4. SV41, 42 low pressure release control valve control This control function is aimed at providing low pressure protection. (cont’d) The control takes place during defrost operation, heating startup pattern control operation, and cooling operation.
Page 46 Item Description of operation, numerical data, and other information Remarks 12. A3-IPDU IPDU controls inverter compressors by issuing commands relating to compressor control speeds, speed increases/decreases, and current release control values via the interface P.C. board. The main control functions of the IPDU P.C. board are described below. 1.
Page 47 <Other points to note> Cooling operation under low outside temperature conditions 1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control based on the indoor TC sensor. 2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control. 3) When the discharge temperature sensor reading falls below 60°C, the frequency may be increased above the level called for by the command received from the indoor unit.
Page 48: Applied Control And Functions
Applied control and Functions 6-1. Applied Control for Indoor Unit 6-1-1. Control Specifications Item Specifications outline Remarks 1. Identification of outdoor unit Upon power supply reset When the power supply is reset, the outdoor unit is identified, and control is redirected according to the identification result.
Page 49 Item Specifications outline Remarks 1. The fan operates in one of the four speed modes of “HIGH (HH)”, “MED (H)”, Fan speed HH > H+ > H > control “LOW (L)” and “AUTO” on the basis of a command issued via the remote L+ >...
Page 50 Item Specifications outline Remarks Cold air 1. In heating operation, the upper limit of the fan tap is set according to the lower of TCJ: Indoor heat discharge whichever is the higher between TC2 sensor and TCJ sensor temperatures, on exchanger sensor prevention the one hand, and TC1 sensor temperature, on the other.
Page 51 Item Specifications outline Remarks Cooling oil While the outdoor unit is recovering cooling oil, the indoor units perform the • Recovery operation normally takes place recovery control following control tasks: when the compressor [common for operational (cooling thermostat ON / thermostat OFF / FAN), as well detects a down in oil as non-operational indoor units] level.
Page 52 Item Specifications outline Remarks Filter sign 1. The indoor fan’s cumulative hours of operation are counted, and when these “FILTER ” displayed display exceed the prescribed value (150H/2500H), a filter replacement signal is sent to (not applicable the remote controller to display a filter sign on it. to wireless type) 2.
Page 53 Item Specifications outline Remarks Selection of 1. The range of operations that can be performed via an indoor unit remote controller • In the case of a wired remote controller, central control can be determined through the setting of the central controller. “CENTRAL mode 2.
Page 54: Optional Connector Specifications Of Indoor P.c. Board
6-1-2. Optional Connector Specifications of Indoor P.C. Board - 54 -...
Page 55: Test Operation Of Indoor Unit
6-1-3. Test Operation of Indoor Unit ▼ Check function for operation of indoor unit (Functions at indoor unit side) This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system. However, if using this function for a long time, a trouble of the equipment may be caused.
Page 56: Method To Set Indoor Unit Function Dn Code
6-1-4. Method to Set Indoor Unit Function DN Code (When performing this task, be sure to use a wired remote controller.) <Procedure> To be performed only when system at rest Push the buttons simultaneously and hold for at least 4 seconds. The unit No.
Page 57 Function CODE No. (DN Code) Table (Includes All Functions Needed to Perform Applied Control on Site) Item Description At shipment Filter display delay timer 0000: None 0001: 150H According to type 0002: 2500H 0003: 5000H 0004: 10000H Dirty state of filter 0000: Standard 0000: Standard 0001: High degree of dirt (Half of standard time)
Page 58 Item Description At shipment High-ceiling adjustment 1-way air discharge cassette (SH) 0000: Standard (Air flow selection) Value Type AP015, AP018 AP024 0000 Standard (factory default) 3.5 m or less 3.8 m or less 0001 High-ceiling (1) 4.0 m or less 4.0 m or less 0003 High-ceiling (3)
Page 59 Type DN code “10” Value Type Model MMU-AP***SH 0000 1-way Air Discharge Cassette MMU-AP***H 0001* 4-way Air Discharge Cassette MMU-AP***WH 0002 2-way Air Discharge Cassette MMU-AP***YH 0003 1-way Air Discharge Cassette (Compact) MMD-AP***BH 0004 Concealed Duct Standard MMD-AP***SPH (SH) 0005 Slim Duct MMD-AP***H 0006...
Page 60: Applied Control Of Indoor Unit
6-1-5. Applied Control of Indoor Unit Control system using remote control interface (TCB-IFCB4E2) Wiring and setting • In the case of group control, the control system functions as long as it is connected to one of the indoor units (control P.C. board) in the group. If it is desired to access the operation and trouble statuses of other units, relevant signals must be brought to it from those units individually.
Page 61 ▼ Ventilating fan control from remote controller [Function] • The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system. • The fan can be operated even if the indoor unit is not operating. •...
Page 62 ▼ Leaving-ON prevention control [Function] • This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit. • In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. 2E is set to the connected indoor unit.
Page 63: Applied Control For Outdoor Unit
6-2. Applied Control for Outdoor Unit The outdoor fan high static pressure support and priority operation mode setting (cooling / heating / number of units / or priority indoor unit) functions are available by setting relevant switches provided on the interface P.C. board of the outdoor unit.
Page 64: Priority Operation Mode Setting
6-2-2. Priority Operation Mode Setting Purpose/characteristics This function allows switching between priority cooling and priority heating. Four patterns of priority operation mode setting are available as shown in the table below. Select a suitable priority mode according to the needs of the customer. Setup CAUTION In the case of the priority indoor unit mode, it is necessary to set up the specific indoor unit chosen for priority operation...
Page 65 (2) Indoor unit setup method for priority indoor unit mode The setting can be changed only when the system is at rest. (Be sure to turn off the system prior to this operation.) Push the buttons simultaneously and hold for at least 4 seconds.
Page 66: Applied Control Of Outdoor Unit
6-2-3. Applied Control of Outdoor Unit Optional control P.C. boards provide access to a range of functions as listed below. Control P.C. board to be used Outdoor unit interface P.C. board setting* Function Jumper to be PCDM4E PCMO4E PCIN4E Connector No. DIP SW No.
Page 67: Power Peak-Cut Control (Standard)
6-2-4. Power peak-cut Control (Standard) (1) Four-core cable support L1: Display lamp ensuring power peak cut control Outdoor unit Locally procured Optional PCB Power supply Display Interface PCB relay [OPERATION] Shield wire PJ17 CN513 SW07 [ON] [OFF] 1 2 3 4 Bit 2 OFF Shield Connection cable...
Page 68: Power Peak-Cut Control (Extended)
<SW07 Bit 2 OFF (two-step control)> Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously). Jumper wire Input 100% (normal operation) 100% (normal operation) 0% (forced stop) Approx. 60% (upper limit regulated) Note 1: Specifications of display relay contact •...
Page 69: Snowfall Fan Control
6-2-6. Snowfall Fan Control Outdoor unit Locally procured Connection Optional PCB cable Snowfall sensor Interface PCB COOL Shield HEAT wire SW1: Snowfall detection switch (snowfall sensor) Operation An external snowfall signal turns on the outdoor unit fan. Terminal Input signal Operation All indoor units operate together...
Page 70: Night Operation (Sound Reduction) Control
6-2-8. Night operation (sound reduction) Control Outdoor unit Locally procured Connection Optional PCB cable Interface PCB COOL HEAT Shield wire SW1: Night time signal switch Operation This function decreases noise at night or other times as necessary. Terminal Input signal Operation Night time control COOL...
Page 71: Operation Mode Selection Control
6-2-9. Operation Mode Selection Control Outdoor unit Locally procured Connection Optional PCB cable Interface PCB COOL HEAT Shield wire SW1: Cooling mode specified input switch SW2: Heating mode specified input switch NOTE SW1: COOL mode selection switch SW2: HEAT mode selection switch Input signal Operation Remarks...
Page 72: Failure/Operation Output
6-2-10. Failure/Operation Output Locally procured Outdoor unit (See “NOTE”) Optional PCB Interface PCB OUTPUT1 SW16 CN511 PJ20 OUTPUT2 1 2 3 4 OUTPUT3 Shield wire Operation In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.
Page 73: Compressor Operation Output
6-2-11. Compressor Operation Output Locally procured Outdoor unit (See “NOTE”) Optional PCB Interface PCB CTR1 OUTPUT1 SW16 CTR2 CN514 PJ20 OUTPUT2 1 2 3 4 Shield wire Operation When a compressor is in operation, a relay connected to the output terminal assigned to it is turned on (closed). When it is at rest, the relay is turned off (open).
Page 74: Operating Rate Output
6-2-12. Operating Rate Output Locally procured Outdoor unit (See “NOTE”) Optional PCB Interface PCB OUTPUT1 SW16 PJ20 CN514 OUTPUT2 MONITOR 1 2 3 4 OUTPUT3 Shield wire Operation At the output terminals, a signal is present (relay closed) or absent (relay open) in various combinations according to the system operation factor, as shown in the diagram.
Page 75: Test Operation
TEST OPERATION 7-1. Procedure and Summary of Test Operation A test operation is executed with the following procedure. When a problem occurs at any step, remove the causes of the problem referring to “8 TROUBLESHOOTING.” Check basic items, mainly the installation work. Checks before test operation Be sure to enter the check results in checklist 1 and 2.
Page 76: Check Items Before Test Operation (Before Powering-On)
7-2. Check Items before Test Operation (before powering-on) Prior to the test operation, check the following items to verify there are no problems with the installation work. Main check items for electric wiring The communication system differs from that of R22 or R407 refrigerant “Modular Multi System” air conditioners. Check wiring points again carefully.
Page 77 (2) In the case that a central control system is connected (before address setup) (1) (3) Central remote controller To other refrigerant line Other refrigerant line Outdoor unit To indoor unit Indoor unit Remote Remote Remote controller controller controller (1) Are the indoor and outdoor communication lines of the outdoor unit connected to the U1/U2 terminals? (2)Is the relay connector between the U1/U2 terminal and the U3/U4 terminal disconnect? (Set up at shipment from the factory) (Keep the relay connector disconnected before address setup.)
Page 78 Checklist 1 • Using Checklist 1, check that there are no problems with the installation work. Outdoor unit Is the capacity of the Indoor unit circuit breaker (Earth leakage breaker) appropriate? Outdoor unit Is the gauge of the Indoor unit power cable correct? Is the control Indoor-outdoor connection terminals (U1, U2)
Page 79 Checklist 2 • Check the additional amount of refrigerant. Calculate the additional amount of refrigerant from the corrective amount of refrigerant (A) according to system horsepower, and the corrective amount of refrigerant (B) according to Indoor unit horsepower, and the additional amount of refrigerant (C) by the pipe diameter on the liquid side, the pipe length to be connected.
Page 80: Check At Main Power-On
7-3. Check at Main Power-on After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit. (After turning on the main power, be sure to check in order: indoor unit outdoor unit.) <Check on the outdoor unit>...
Page 81: Address Setup
7-4. Address Setup This product requires address setup before operation. Follow this procedure for address setup. 7-4-1. Precautions (1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by manual address setup or by automatic address setup: Automatic address setup: Setup from SW15 on the interface PC board of the outdoor unit.
Page 82: Address Setup Procedure
7-4-3. Address Setup Procedure Central control of 2 or more refrigerant lines: go to Address setting procedure 2 When controlling a single refrigerant line When controlling 2 or more refrigerant lines (Example) centrally centrally Address setting procedure Outdoor Central Central Central Outdoor Outdoor...
Page 83 (Example) Controlling 2 or more refrigerant lines as a group Outdoor Outdoor System wiring Indoor Indoor Indoor Indoor diagram (Group control) Remote controller Address setting procedure 2 Set a system address for each system using SW 13 and 14 on the interface P.C. board on the outdoor unit of each system.
Page 84 Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the outdoor units that will be connected to the central control. (Factory default: disconnected) Turn on indoor units first, and then turn on outdoor units. About 1 minute after turning the power on, confirm that the 7-segment display on the interface P.C.
Page 85 Set the central control address. (For the setting of the central control address, refer to the installation manuals of the central control devices.) Outdoor unit interface P.C. board SW15 SW04 SW05 4, 6 7-segment D600 D601 D602 D603 D604 display SW13 SW14 SW01 SW02 SW03...
Page 86 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually) *The items in bold font must be set manually. CAUTION Relay connector connection Never connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing address setting of all the refrigerant lines.
Page 87 Manual address setup from the remote controller With indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or in cases where addresses are change after address setup. (Wiring example for 2 refrigerant lines) Arrange one indoor unit and one remote controller Line 1...
Page 88 NOTE (1) When setting the line address from the remote controller, do not use addresses 29 and 30. Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code “E04” (indoor/outdoor communication circuit trouble) is output. (2) When manual address setup has been done from a remote controller, and central control over refrigerant lines is to be done, setup the outdoor unit of each line as follows: •...
Page 89 To find an indoor unit’s position from its address When checking unit numbers controlled as a group CODE No. DATA SETTING UNIT No. R.C. TEMP. ON / OFF TIMER SET TIME FILTER Stop RESET TEST SET CL (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
Page 90 Push and hold the TIME buttons at the same time for more than 4 seconds. At first, the line 1 and CODE No. (Address Change) are indicated on the LCD display. (Select an outdoor unit.) UNIT LOUVER SWING/FIX Push the (left side of the button) and buttons repeatedly to select a system address.
Page 91 Push the TIME buttons repeatedly to change the value indicated in the SET DATA section to that you want. Push the button. UNIT LOUVER Push the button (left side of the button) repeatedly to select another indoor UNIT No. to change.
Page 92 Push the button. • The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD display and the fan and louvers of the unit are activated. At first, the current indoor unit address is displayed in SET DATA (No system address is indicated.) CODE No.
Page 93 2) Turn on DIP switch 2 of SW30 on the interface P.C. board of the outdoor unit if the switch is OFF. (Leave it as it is if it has already been set to ON.) Central remote controller Outddor Outdoor Outdoor unit unit...
Page 94 In the case of an increase in address-undefined indoor units (extension, etc.) To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of PC board, etc., follow the methods below. Method 1 Set up an address individually from a wired remote controller.
Page 95: Check After Address Setup When Central Control System Is Connected
7-4-4. Check after Address Setup when Central Control System Is Connected When the central control system is connected, check that the following setup has finished after address setup. Central remote controller To other refrigerant line Line address = 2 Line address = 1 Other refrigerant line Outdoor unit Indoor unit...
Page 96: Troubleshooting In Test Operation
7-5. Troubleshooting in Test Operation If there are phenomena such as the output of a check code or the remote controller is not accepted when powered- on after wiring work or during address setup operation, the following causes are considered. 7-5-1.
Page 97: Operation From The Indoor Remote Controller Is Not Accepted, And A Check Code Is Displayed On The 7-Segment Display Of The Interface Pc Board Of The Outdoor Unit
7-5-2. Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7-segment display of the interface PC board of the outdoor unit. Outdoor unit Indoor remote controller 7-segment status display Line addresses and indoor addresses of all the connected Set up addresses.
Page 98: In Checking The Number Of Connected Outdoor Units And Connected Indoor Units
7-5-4. In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed. (There are outdoor/indoor units that do not operate in a test operation.) Miswiring of communication lines between indoor units After modification of wiring, set up the addresses again and The number of or an unconnected wire ( Fig.
Page 99 Miswiring example Outdoor unit Remote Figure controller 7-segment Miswiring example status display Outdoor unit U3 U4 Fig. 1 E19-00 response U1 U2 U1 U2 Outdoor unit Outdoor unit [Line 1] [Line 2] U1 U2 U1 U2 Fig. 2 E20-01 response U1U2 U1 U2 The number of connected...
Page 100: Test Operation Check
7-6. Test Operation Check 7-6-1. Fan Check START Check code appears When a check code has been Push the Start/Stop button on the remote controller. displayed on the remote controller, remove the cause of the trouble, referring to "Check code and check Check code position displayed on remote appears...
Page 101: Cooling/Heating Test Operation Check
7-6-2. Cooling/Heating Test Operation Check The cooling/heating test operation check can be performed on both the indoor remote controller and the outdoor unit interface PC board. (1) Test operation start/stop operation Test operation from the indoor remote controller • Wired remote controller: Refer to the items below in “Test operation” of the wired remote controller. •...
Page 102 Wireless remote controller Wireless remote controller (4-way Cassette type) (Ceiling type) Test run (Forced cooling operation) Test run (Forced cooling operation) Requirement: Requirement: • Finish the forced cooling operation in a short • Finish the forced cooling operation in a short time because it applies excessive strength to the time because it applies excessive strength to the air conditioner.
Page 103 (2) Test operation START Refer to "Test operation procedure" Test operation for one indoor unit of the indoor remote controller. The operation does not start for approximately 3 minutes after Operation starts powering-on or stopping operation. Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.
Page 104: Service Support Function
7-7. Service Support Function 7-7-1. Check Function for Connecting of Refrigerant and Control Lines This function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the outdoor unit.
Page 105 Note 1: Criteria for the difference between suction and discharge temperatures (1) Cooling operation After operating for a minimum of 30 minutes in “COOL” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 8°C or more, it is normal. (2) Heating operation After operating for a minimum of 30 minutes in “HEAT”...
Page 106 (3) On rotation of outdoor fan Outdoor fan may rotate slowly to control pressure when cooling with low outer air temperature or heating with excessive load. For control content, also refer to items in Section 5, “Control Outline: Outdoor Unit, Outdoor Fan Control.”...
Page 107: Function To Start/Stop (On/Off) Indoor Unit From Outdoor Unit
7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the outdoor unit. p/Release 7-segment display Cooling test Changes the mode of all the [Setup] Section A Section B...
Page 108 (1) Cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface board of the outdoor unit. <Operation procedure>...
Page 109 (2) Heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface board of the outdoor unit. <Operation procedure>...
Page 110 (3) Fan test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the outdoor unit. <Operation procedure>...
Page 111 (4) Batch start/stop (ON/OFF) function This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface board of the outdoor unit. <Operation procedure> Be sure to turn on power at the indoor side Power ON before power-ON of outdoor unit.
Page 112 (5) Individual start/stop (ON/OFF) individual test operation function This function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface board of the outdoor unit. Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 27) to be started (Refer to the following table*) - only the setup indoor unit starts operation.
Page 113: Check Code Clearing Function
7-7-3. Check code Clearing Function (1)Clearing from the main remote controller Check code clearing in outdoor unit Check code of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller is connected. (Check code of the indoor unit is not cleared.) For clearing check codes, the service monitor function of the remote controller is used.
Page 114 (2)Clearing check code by using switches on the interface board of the outdoor unit Using the switches on the interface P.C. board of the outdoor unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply. Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.
Page 115: Remote Controller Distinction Function
7-7-4. Remote Controller Distinction Function This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the outdoor unit. <Distinction procedure>...
Page 116: Pulse Motor Valve (Pmv) Forced Open/Close Function In Indoor Unit
7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the outdoor unit. This function is also used to open PMV fully when turning off the power and executing an operation.
Page 117: Solenoid Valve Forced Open/Close Function In Outdoor Unit
7-7-7. Solenoid Valve Forced Open/Close Function in Outdoor Unit This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch operation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerant clogging with ON/ OFF operation of the solenoid valve.
Page 118: Fan Operation Check In Outdoor Unit
7-7-8. Fan Operation Check in Outdoor Unit This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The rotation speed of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system.
Page 119: Manual Adjustment Function Of Outside Temperature (To) Sensor
7-7-9. Manual Adjustment Function of Outside Temperature (TO) Sensor This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.
Page 120 <Service support function list> Refrigerant circuit and control communication line check function (Cooling [J . C] operation) Refrigerant circuit and control communication line check function (Heating operation) l l u l l o n i l e l l v i t Fan test operation function [F .
Page 121: Refrigerant Leakage Detection
The refrigerant leakage can be confirmed by using the switches on Interface PCB of the outdoor unit. If there is a leak, the location must be found in order to recover the refrigerant. After that, implement appropriate countermeasure and refill the refrigerant to its standard volume.
Page 122: Monitor Function Of Remote Controller Switch
7-7-11. Monitor Function of Remote Controller Switch When using a remote controller with the model name RBC-AMT32E, the following monitor functions can be used. Switching to the service monitor mode <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by switching to the service monitor mode from the remote controller.
Page 123 Unit Remote controller display example Room temperature (Use to control) ×1 °C Room temperature (Remote controller) ×1 °C Indoor suction air temperature (TA) × ° l i o × ° [0024]=24°C l i o × ° l i o × °...
Page 124: Smms Wave Tool For Smartphone
NFC TAG DEVICE SMARTPHONE QR code URL：http://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool/ 7-8-1. Prohibition/Permission of the NFC Setting ・This Application enables the functions of the auto-address setup and the test operation of the outdoor unit with Smartphone within 48 hours from the power input to the outdoor unit.
Page 125: Confirmation For The Generation Of The Failure Of The Nfc
How to set the NFC operation all time permission Follow the below procedure. Rotaly switch Push switch 7-segment display NFC operation Step setting SW01 SW02 SW03 SW04 [ A ] [ B ] (Default setting) After the power input, :below 48 hours [ nF] [ c.00 ] [NFC operation permit] :more than 48 hours...
Page 126: Troubleshooting
TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models All Super Module Multi System (SMMS-e Stand alone type) models. (Indoor units: MM*-AP***, Outdoor units: MMY-SAP***6*) (b) Tools and measuring devices required (c) Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. (d) Multimeter, thermometer, pressure gauge, etc.
Page 127: Troubleshooting Method
8-2. Troubleshooting Method The remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the problem site/problem part may be identified in the event of a problem by following the method described below.
Page 128 (Check code detected by main remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Typical problem site Description of check code Main remote Operation Timer Ready controller Sub-code Flash No master remote controller, Signals cannot be received from indoor unit; troubled remote controller –...
Page 129 List of Check Codes (Outdoor Unit) (Check code detected by SMMS-e outdoor interface - typical examples) If "HELLO" is displayed on the otudoor 7-segment for 1 minute or more, turn off the power supply once and then turn on the power IPDU: Intelligent Power Drive Unit (Inverter P.C.
Page 130 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical problem site Description of check code central control or main remote Operation Timer Ready Sub-code Flash controller display Outdoor suction Outdoor suction temperature sensor 01: TS1 temperature sensor (TS1,TS3) has been open/short-circuited.
Page 131 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical problem site Description of check code central control or main remote Operation Timer Ready Sub-code Flash controller display A3-IPDU IPDU ○ ○ ○ ○ There are insufficient number of IPDUs (P.C. Trouble in number of IPDUs ○...
Page 132 (Check code detected by IPDU featuring in SMMS-e Stand alone type outdoor unit - typical examples) Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical problem site Description of check code central control or main remote Operation Timer Ready Sub-code controller...
Page 133: Troubleshooting Based On Information Displayed On Remote Controller
8-3. Troubleshooting Based on Information Displayed on Remote Controller Using main remote controller (RBC-AMT32E) (1) Checking and testing When a problem occurs to an air conditioner, a check code and indoor unit No. are displayed on the display window of the remote controller. Check codes are only displayed while the air conditioner is in operation.
Page 134 Using TCC-LINK central remote controller (BMS-CM1280TLE) (1) Checking and testing When a problem occurs to an air conditioner, Display of Unit No. Display of check code the bar under the group number display flashes. When a group in the alarm issuance with the UNIT No.
Page 135 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the outdoor unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “8-2. Troubleshooting Method”.
Page 136 Cause of check code Heat exchanger temperature sensor (TCJ) trouble Operation Timer Ready Heat exchanger temperature sensor (TC2) trouble Indoor unit temperature sensor Heat exchanger temperature sensor (TC1) trouble troubles Ambient temperature sensor (TA/TSA) trouble Alternate blinking Discharge temperature sensor (TF) trouble Discharge temperature sensor (TD1) trouble Operation Timer Ready...
Page 137 Cause of check code Operation Timer Ready Outdoor EEPROM trouble Synchronized blinking Other (indications not involving check code) Cause of check code Operation Timer Ready – Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility – (automatic cooling/heating setting for model incapable of it and heating setting for cooling-only model) Alternate blinking - 137 -...
Page 138: Check Codes Displayed On Remote Controller And Smms-E Stand Alone Type Outdoor Unit
8-4. Check Codes Displayed on Remote Controller and SMMS-e Stand alone type Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked For other types of outdoor units, refer to their own service manuals. Check code Location Check code detection Outdoor 7-segment display Description System status...
Page 139 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check controller Sub-code code No. of indoor Indoor Indoor-outdoor All stop Condition 1 • Check power supply to units from communication One indoor unit or more indoor unit.
Page 140 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Indoor unit not All stop Indoor unit cannot be • Check connection of found during detected after indoor indoor-outdoor communication line.
Page 141 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Trouble in Indoor Stop of Periodic communication • Check remote controller unit communication corresponding between indoor header and wiring.
Page 142 Check code Location Check code detection System Outdoor 7-segment display Description Check items (locations) Main condition(s) status remote detection Check Sub-code controller code IPDU All stop Communication is disrupted • Check wiring and A3-IPDU IPDU communication between IPDUs (P.C. connectors involved in trouble boards) in inverter box.
Page 143 Check code Location Check code detection System Outdoor 7-segment display Description Check items (locations) Main status condition(s) remote detection Check Sub-code controller code TO sensor All stop Sensor resistance is infinity • Check connection of TO trouble or zero (open/short circuit). sensor connector.
Page 144 Check code Location Check code detection System Outdoor 7-segment display Description Check items (locations) Main status condition(s) remote detection Check Sub-code controller code Indoor Other indoor Stop of Indoor P.C. board does not • Check for defect in indoor P.C. trouble –...
Page 145 Check code Location Check code detection System Outdoor 7-segment display Description Check items (locations) Main status condition(s) remote detection Check Sub-code controller code Low oil level All stop Operating compressor <All outdoor units in corresponding line protection detects continuous to be checked> state of low oil level for about 2 hours.
Page 146 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Indoor Outdoor units Stop of In case of different outdoor • Check outdoor unit model. unit unit (Not corresponded to model corresponding (Check whether the...
Page 147 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Trouble in No. All stop Insufficient number of IPDUs • Check model setting of A3-IPDU IPDU of IPDUs are detected when power is P.C.
Page 148 Check code Location Check code detection System Outdoor 7-segment display Description Check items (locations) Main status condition(s) remote detection Check Sub-code controller code 01: Compressor 1 side IPDU Activation of high- All stop High-pressure SW is • Check connection of high- pressure SW activated.
Page 149 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Outdoor liquid All stop <During heating operation> • Check full-close operation backflow When system is in heating of outdoor PMV (PMV1,4).
Page 150 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code • Check for trouble in main Detected outdoor unit No. 4-way valve All stop Abnormal refrigerating cycle reversing data is collected during body of 4-way valve.
Page 151 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code (Sub code: 10) Fan IPDU over current protection circuit Check fan motor. • Outdoor fan 10:Element short circuit IPDU All stop Flow of current equal to or...
Page 152 Check codes Detected by TCC-LINK Central Control Device Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Sub-code controller Check for trouble in central TCC-LINK TCC-LINK Continued Central control device is •...
Page 153 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from all the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the IPDU P.C. board (A3-IPDU). (Be sure to remove all the leads.) (3) Turn on the power supply and start cooling or heating operation.
Page 154: Diagnosis Procedure For Each Check Code
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Page 181: 7-Segment Display Function
8-6. 7-Segment Display Function 7-segment display on outdoor unit (interface P.C. board) The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C. board (SW01, SW02 and SW03).
Page 182 (1)Display of System Information − − A […8]~[12]:8 to 12 HP System capacity B [HP] A […1]:1 No. of outdoor units B […P] A […0.]~[27.]:0 to 27 (No. of units connected) No. of indoor units connected / No. of units with cooling thermostat ON B [C…0]~[C27]:0 to 27 (No.
Page 183 (2)Display of Outdoor Unit Information Check code data Outdoor unit No.: [U1] B Check code (only latest one displayed) If there is no check code, [– – –] is displayed. If there is sub-code, check code [* * *] and sub-code [– ] are displayed alternately, for 3 seconds and 1 second, respectively.
Page 184 (3)Display of Outdoor Cycle Data SW01 SW02 SW03 Display detail PD pressure data PD pressure (MPa) is displayed in decimal format. (MPa: Approx. 10 times magnitude of kgf/cm P d. ∗. ∗ ∗ PS pressure data PS pressure (MPa) is displayed in decimal format. P s.
Page 185 (4) Display of Indoor Unit Information SW01 SW02 SW03 Display detail Indoor BUS communication signal Upon receiving signal: [..1], Other times: [..] receiving status Indoor check code No check code: [– – –] Indoor HP capacity 0.
Page 186: Oil Level Judgment Display
8-7. Oil Level Judgment Display The current compressor oil level judgment results can be accessed by setting the switches provided on the interface P.C. board of an outdoor unit. Perform the checks in accordance with the procedure described below. Operation Procedure (1) Start the operation.
Page 187: Smms-E Stand Alone Type Outdoor Interface P.c. Board Function Setting Exchange Table
8-8. SMMS-e Stand alone type Outdoor Interface P.C. Board Function Setting Exchange Table 1. Switch/Function Setting Exchange Initial setting Part type Exchange contents at shipment bit 1 Compressor 1 backup OFF: Normal, ON: Backup when compressor 1 was in trouble bit 2 Compressor 2 backup OFF: Normal, ON: Backup when compressor 2 SW06...
Page 188 2. Switching of Jumper Wire/Function Function switching setup Setup × : With jumper, : Without jumper (Cut) Initial setting jumper Part type Exchange contents at shipment Optional function Indoor unit at not selected side is kept with waiting status. Operation mode selection The mode is changed a mode which selected the operation mode of the ×...
Page 189 Interface Board Switches and jumper wire positions to be used in the Function setup switching table CN30 CN31 CN32 Interface P.C.board SW30 SW06 SW07 SW09 SW10 SW11 SW12 SW13 SW14 SW16 SW17 - 189 -...
Page 190: Leakage/Clogging Of Refrigerating Cycle Circuit
8-9. Leakage/Clogging of Refrigerating Cycle Circuit List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part Clogging Location of Unit generating Detected problem and check code problem Part Symptom check code (see next page) Outdoor PMV1 Corresponding unit Activation of high-pressure protection...
Page 191 Fan motor Right side Main heat exchanger (TO) Reducer Left side (PMV1) Main heat exchanger (TE1) (SV51) (SV52) Reducer 4-way valve (TL1) High-pressure (TS1) sensor Oil separator Low-pressure (TS3) sensor (SV2) (SV3D) (SV41) Accumulator (SV42) High- High- pressure (TD2) (TD1) pressure switch switch...
Page 192: Sensor Characteristics
8-10. Sensor Characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS3, TE1, TL1, TL3 and TO sensors Temperature [°C] Resistance [kΩ] 102.9 76.6 57.8 44.0 33.8 Resistance 26.1 [kΩ] 20.4 (10 °C or below) Resistance 16.0 [kΩ] (10 °C or above) 13.0 10.0kΩ...
Page 193 Outdoor Unit Pressure sensor characteristics • Input/output wiring summary High pressure side (PD) Low pressure side (PS) Pin No. Input/output name Lead wire color Input/output name Lead wire color OUTPUT White — — — — OUTPUT White Black Black • Output voltage vs. pressure High pressure side (PD) Low pressure side (PS) 4.5V...
Page 194 Indoor TC1 sensor Temperature [°C] Resistance [kΩ] 98.3 73.7 55.8 42.6 32.8 Resistance Resistance [kΩ] [kΩ] 25.5 (10°C or beiow) (10°C or above) 20.0 15.7 12.5 10.0 Temperature [°C] Indoor TC2 and TCJ, TOA sensor Temperature [°C] Resistance [kΩ] 102.9 76.6 57.7 44.0...
Page 195: Pressure Sensor Output Check
8-11. Pressure Sensor Output Check Outdoor Unit PD sensor characteristics 0 to 4.15 MPa (0.5 to 4.73V output for 0 to 4.15 MPa) Voltage readings across pins 2 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT...
Page 196 Outdoor Unit PS sensor characteristics 0 to 1.47 MPa (0.5 to 5V output for 0 to 1.47 MPa) Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT VOLT...
Page 197: Backup Operation (Emergency Operation)
BACKUP OPERATION (EMERGENCY OPERATION) This product offers backup modes of operation to tide over certain emergency situations. If a trouble occurs in one of the compressors, it is possible to operate the system on an emergency basis by operating only the remaining compressor, (compressor backup operation).
Page 198 (3) Change the connection of wiring between Comp-IPDU1 and Comp-IPDU2, as shown in the below. 1.When compressor No.1 (front left) is trouble：No change the connection of wiring 2.When compressor No.2 (front right) is trouble：Change the connection of wiring between Comp- IPDU1 and Comp-IPDU2 as shown in the below.
Page 199: Replacing Compressors
REPLACING COMPRESSORS 10-1. Compressor Replacement Procedure (Outline) WARNING In situations such as indoor unit relocation and repairs, it is not possible to recover all the refrigerant held by the system in the outdoor units. It could cause a serious accident, such as blow out or injury.
Page 200: Replacement Of Compressors
10-2. Replacement of Compressors <Checking color of oil in troubled compressor> • Lay the troubled compressor down, draw a small amount of oil via the oil equalization pipe, and check its color against color samples. • Determine the number of compressors to be replaced according to the color checking result. Replace the troubled compressor only.
Page 201 Amount of oil in troubled compressor A [cc]: 1000 ≤ A < 1900 (1) Adjust the amount of oil in the new compressor to A cc. (Lay the new compressor down and draw (1900 - A) [cc] of oil via the oil equalization pipe.) Compressor Amount of oil in troubled compressor A [cc]: 1900 ≤...
Page 202 When replacing normal as well as troubled compressor] <Remove the normal compressor> • Remove the normal compressor in the same way as the troubled compressor. Note: • Be sure to insulate the removed compressor leads using insulation tape, etc. WARNING When detaching a pipe by heating with a burner at brazed joint, take care as any oil left in the piping may burn in a momentary flash of fire when the brazing filler metal melts.
Page 203 <Installing compressor> • Install a compressor by following the dismantling procedure in reverse. • The dismantling process may have loosened compressor leads and quick connectors. Prior to installation, therefore, tighten them a little with a pair of pliers, and verify that they are tight after reconnection. Notes: •...
Page 204: Check Procedure To Search Cause Of Compressor Oil Shortage
10-3. Check Procedure to Search Cause of Compressor Oil Shortage Are there any miswiring or incorrect Correct the miswiring or connection. connection of TK1 and TK2 TK1: CN531 TK2: CN532 sensor in the unit that has replaced compressor? Are the characteristics of the TK1 or TK2, Replace the troubled sensor.
Page 205 Check items and procedures to follow when checking oil circuit with compressor(s) disconnected 1) With PMV1 fully closed, apply pressure to the check joint of liquid pipe with nitrogen, and check the pressure at the check joint of discharge pipe. Leakage of outdoor PMV If the pressure at the check joint of discharge pipe increases, there is a leak from PMV1 (A) and check valve Leakage of check valve in...
Page 206: Outdoor Unit Parts Replacement Methods
OUTDOOR UNIT PARTS REPLACEMENT METHODS Cabinets 2) Screws(4 corners) 2) Discharge cabinet WARNING Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 207 Propeller fan 2) Discharge cabinet 2) Screws(4 corners) Fan motor WARNING Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 208 Propeller fan 2. CAUTION for replacement or attachment Fan motor 1) Insert the propeller fan while aligning the D-cut D-cut surface of (continued) surface of the fan motor shaft with the arrow mark fanmotor shaft ) on the fan. (If the propeller fan is tightly mounted on the shaft without securing alignment between the D-cut surface and the arrow mark ( ), it may cause the...
Page 209 Heat exchanger Heat exchanger WARNING 3)Motor base (right) Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. Before the work, be sure to recover the refrigerant of 2)Heat exchanger outdoor unit. Heat exchanger partition plate (left)
Page 210 Inverter assembly WARNING 2) Inverter cover Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 2) Screws (2 locations) 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 211 Reactor assembly 3) Screws (4 locations) WARNING Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the operation, and turn off the circuit breaker. 2) Remove the inverter assembly. (See the inverter assembly dismantling method under item 4.) 3) Remove the reactor box located at the back of the...
Page 212 No. Part to be replaced Work procedure Remarks 2-way valve coils Pressure sensors SV3D locations SV42 SV41 Oilseparator Accumlator PD sensor SV52 PS sensor SV51 Inverter assembly Compressor 1 Compressor 2 - 212 -...
Page 213 Part to be replaced Work procedure Remarks 7 Temperature sensors Product front view - locations and identification colors TO sensor(black) TE1 sensor(blue) TL1 sensor(yellow) TD1 sensor(yellow) TD2 sensor(red) Product rear view TS1 sensor(gray) TS3 sensor(black) TK1 sensor(black) TL3 sensor(red) TK2 sensor(blue) - 213 -...
Page 214 Part to be replaced Work procedure Remarks 8 Pipe fixing rubber (Detached type) SV3D valve<=>Discharge pipe PMV4<=>Sub cool heat exchanger φ φ φ6.35<=> φ9.52<=> 15.88 15.88 SV2 valve<=>Discharge pipe φ φ6.35<=> 15.88 SV41 valve<=>Suction pipe SV42 valve<=>Suction pipe φ φ φ8.0<=>...
Page 215 Pipe fixing rubber - detachment/ WARNING attachment (common) Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Hold the pipe fixing rubber in such a manner that your fingers and thumb are in contact with the two Squeeze rubber to create small gap.
Page 216 4-way valve 3) PMV1 coil 3) SV51 coil 3) SV52 coil WARNING - detachment/ attachment Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. Before starting the work, be sure to recover the refrigerant of outdoor unit by removing it with a refrigerant recovery device.
Page 217: C. Board Exchange Procedures
P.C. BOARD EXCHANGE PROCEDURES ■ Outdoor Unit 12-1. Replacement of outdoor P.C. board 12-1-1 List of service P.C. boards Parts code Description Applicable model P.C. board type code Product code 43T6W403 Interface P.C. board MCC-1673 ASM-PCB(I/F) MMY-SAP0806HT8(J)P* 43T6V628 Inverter P.C. board for compressor MCC-1669 ASM-PCB(A3IPDU) MMY-SAP1006HT8(J)P*...
Page 218: Interface P.c. Board (Mcc-1673) Replacement Procedure
12-1-3.Interface P.C. Board (MCC-1673) Replacement Procedure This Interface board is commonly installed in different models before shipment. When the board assembly is to be replaced, check the displayed inspection contents below and replace the board in accordance with the model, following the below procedure. Replacement steps: (1) Turn off the power supply of the outdoor unit and wait at least 3 minutes.
Page 219: Comp-Ipdu P.c. Board (Mcc-1669) Replacement Procedure
12-1-4. Comp-IPDU P.C. Board (MCC-1669) Replacement Procedure This board is commonly installed in different models before shipment. Set the DIP switch (SW800) setting of the service board to the switch setting before replacement. Replacement Steps: (1) Turn off the power supply of the outdoor unit and allow at least 3 minutes for the capacitor to discharge. (2)Remove all the connectors and the Faston and screw terminals(①) connected to the Compressor IPDU.
Page 220 (5) Set the DIP switch (SW800) setting of the service board to match the switch setting from the original PCB. -Set the DIP switch (SW800) depending on the position of the IPDU within the electrical box, as shown in the following diagram.
Page 221: Fan-Ipdu P.c. Board (Mcc-1659) Replacement Procedure
12-1-5. Fan-IPDU P.C. Board (MCC-1659) Replacement Procedure This board is commonly installed in different models before shipment. Set the DIP switch (SW800) setting of the service board to the switch setting before replacement. Replacement steps: (1) Turn off the power supply of the outdoor unit and allow at least 3 minutes for the capacitor to discharge. (2) Remove all the connectors and the Faston and screw terminals(①) connected to the FAN IPDU.
Page 222 (6) Set the DIP switch (SW800) setting of the service board to match the switch setting from the original PCB. -Set the DIP switch (SW800) depending on the position of the IPDU within the electrical box, as shown in the following diagram.
Page 223: Noise Filter P.c. Board (Mcc-1608A, B) Replacement Procedure
12-1-6. Noise Filter P.C. Board (MCC-1608A, B) Replacement Procedure Replacement steps: (1) Turn off the power supply of the outdoor unit and allow at least 3 minutes for the capacitor to discharge. (2) Remove the terminal block sub-assembly ①. Remove the screws ② on the power supply terminal block ④ and the screws ③ securing the terminal block subassembly ①.
Page 224 (4) Remove the earth screws ⑤, ⑥ and the three PCB mount ⑩. • The removed earth screws ⑤, ⑥ and the PCB mount ⑩ will be reused during the installation of the service P.C. board, so keep them in a safe place. (5) Remove the noise filter P.C.
Page 225: Exploded Diagram/Parts List
EXPLODED DIAGRAM/PARTS LIST - 225 -...
Page 226 - 226 -...
Page 227 REFRIGERATION CIRCUIT DIAGRAM Fan motor Right side Main heat exchanger (TO) Reducer Left side (PMV1) Main heat exchanger (TE1) (SV51) (SV52) Reducer 4-way valve (TL1) High-pressure (TS1) sensor Oil separator Low-pressure (TS3) sensor (SV2) (SV3D) (SV41) (SV42) Accumulator High- High- pressure (TD2) pressure...
Page 228 RUBBER, SUPPORTER, PIPE 43T49354 RUBBER, SUPPORTER, PIPE 43T49355 RUBBER, SUPPORTER, PIPE 43T49347 RUBBER, SUPPORTER, PIPE 43T49358 BAND, FIX HOLDER, SENSOR 43T19333 43T01310 MARK, TOSHIBA 43T63358 HOLDER, NFC 43T39351 NUT, FLANGE 43T39350 WASHER 43T47385 BOLT, COMPRESSOR 43T49357 RUBBER, CUSHION 43T47333 BONNET, 1/2 IN 43T47375 TUBE, CAPILLARY, ID 1.0...
Page 229 Inverter Assembly - 229 -...
Page 230 Quantitiy / Set MMY- Ref. No. Parts No. Description SAP0806 SAP1006 SAP1206 HT8(J)P HT8(J)P HT8(J)P 43T50347 SENSOR ASSY, SERVICE 43T95303 SUPPORTER, ASSY 43T50348 SENSOR,TD(F6) 43T60437 TERMINAL, 4P 43T58317 REACTOR, CH-79 43T52320 CONTACTOR, MAGNETIC 43T60436 TERMINAL, 6P 43T95301 SUPORT, SPACER 43T95302 SPACER(EDGE) 43T6V623 PC BOARD ASSY, NOISE FILTER, MCC-1608...
Page 231 TOSHIBA CARRIER (THAILAND) CO.,L TD. 144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road, Amphur Muang, Pathumthani 12000, Thailand...

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Mmy-sap1006ht8p-e Mmy-sap1206ht8p-e Mmy-sap0806ht8jp-e Mmy-sap1006ht8jp-e Mmy-sap1206ht8jp-e Mmy-sap0806ht8p-tr ... Show all

Toshiba MMY-SAP0806HT8P-E Service Manual

Safety Caution

Refrigerant (R410A)

1 Wiring Diagrams

2 Parts Rating

3 Refrigerant Piping Systematic Drawing

4 Combined Refrigerant Piping System Schematic Diagrams

5 Control Outline

6 Applied Control and Functions

7 Test Operation

8 Troubleshooting

9 Backup Operation (Emergency Operation)

10 Replacing Compressors

11 Outdoor Unit Parts Replacement Methods

12 C. Board Exchange Procedures

13 Exploded Diagram/Parts List

Quick Links

Troubleshooting

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Summary of Contents for Toshiba MMY-SAP0806HT8P-E

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