Инструкция на Мультизональные VRF системы Toshiba (сервис-мануалы) бренда Toshiba

FILE NO. A06-002

SERVICE MANUAL <Compact 4-Way Air Discharge Cassette Type> MMU-AP0071MH MMU-AP0091MH MMU-AP0121MH MMU-AP0151MH MMU-AP0181MH • This Service Manual describes contents of the Compact 4-Way Air Discharge Cassette indoor unit. For the outdoor unit, refer to the Manual with FILE No. A03-009, A05-004…

SAFETY CAUTION

The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents, and keep them. WARNING Check earth wires. Before troubleshooting or repair…

WARNING

Assembly/Cabling Insulator check Ventilation After repair work, surely assemble the disassembled parts, and connect and lead the removed cables as before. Perform the work so that the cabinet or panel does not catch the inner cables. If incorrect assembly or incorrect cable connection was done, a…

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to New Refrigerant 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…

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…

5. Recharge of Refrigerant

When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in the procedure as described below. Recover the refrigerant and check there is no refrigerant in the equipment. When the pressure has lowered until indication of the compound gauge pointed -0.1MPa…

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

200 595 to 660 Ceiling open dimension 1000 or more 15 or more 1000 or more Space required for installation and servicing Drain-up standing-up size Stand-up 850 or less Indoor unit Bottom face of ceiling Note) As ABS is used for the drain discharge port of the main unit, the vinyl chloride paste…

2. WIRING DIAGRAM

PMV TC1 TA FS TCJ TC2 CN82 (BLU) CN100 (BRW) CN34 (RED) CN104 CN102 CN101 (YEL) (RED) (BLK) CN333 (WHI) CN309 (YEL) 3 1 CN41 (BLU) BLK BLK 1 1 Motor drive circuit 3 3 CN40 (BLU) CN334 (WHI) U1 U2 CN68 (BLU) 1 1 CN71 1 (CHK) 2 CN72 1 (DISP) 2 WHI CN80 (GRN) RY303 Fuse T3.15A 250V ~ Fuse T6.3A 250V ~…

3. PARTS RATING

3-1. Parts Rating Model MMU- AP0071MH Fan motor AP0091MH Pulse motor valve AP0151MH AP0181MH SWF-230-60-1R Motor for horizontal grille Pulse motor AP0121MH MP24Z3N EDM-MD12TF-3 EDM-B25YGTF-3 EDM-B40YGTF-3 TA sensor Lead wire length : 155mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1400mm…

3-3. Parts Name of Remote Controller

Display section CODE No. SET DATA SETTING TEST In the display example, all indicators are displayed for the explanation. In reality only, the selected contents are indicated. • When turning on the leak breaker at the first time, [SET DATA] flashes on the display part of the remote controller. While…

Operation section

Push each button to select a desired operation. This remote controller can operate the maximum 8 indoor units. • The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing ON / OFF button only. 1 7 TEMP. FILTER RESET TEST ON / OFF TIMER SET FAN MODE…

3-4. Correct Usage

When you use the air conditioner for the first time or when you change the SET DATA value, follow the procedure below. From the next time, the operation displayed on the remote controller will start by pushing the ON / OFF button only. Preparation Turn on the main power switch and/or the leakage…

3-5. Automatic Operation (Super Heat Recovery Type Only)

When you set the air conditioner in mode or switch over from AUTO operation because of some settings change, it will automatically select either cooling, heating, or fan only operation depending on the indoor temperature. TEMP. ON / OFF 3 TIMER SET FAN MODE TIME SWING/FIX VENT FILTER RESET TEST SET…

3-6. TIMER Operation

A type of timer operation can be selected from the following three types. OFF timer : The operation stops when the time of timer has reached the set time. Repeat OFF timer : Every time, the operation stops after the set time has passed. ON timer : The operation starts when the time of timer has…

3-7. Adjustment of Wind Direction

• While the air conditioner stops, the horizontal flap (Up/Down air direction adjustment plate) automatically directs upward. • While the air conditioner is in ready status for heating, the horizontal flap (Up/Down air direction adjustment plate) directs upward. The swinging operation starts after…

3-8. Information

Confirmation before operation Protective device (High pressure switch) • Turn on the power switch 12 hours before starting the operation. • Make sure whether earth wire is connected. • Make sure the air filter is connected to the indoor unit. This device stops automatically an operation when…

3-9. Air Conditioner Operations and Performance

3 minutes protection function 3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power switch/circuit breaker is turned on for re-starting the air conditioner. Power failure Power failure during operation will stop the unit completely. • To…

3-10. When the Following Symptoms are Found

Check the points described below before asking repair servicing. Check again. Symptom Outdoor unit • White misty cold air or water is out. • Sometimes, noise “Pushu !” is heard. • Fan of the outdoor unit stops automatically and performs defrost operation. • Solenoid valve works when defrost…

Accessory parts and Parts to be procured locally

H Accessory parts Part name Q’ty Shape Installation Manual 1 This manual Heat insulating pipe 2 Installation pattern 1 Usage (Ensure hand over to customer) For heat insulation of the pipe connecting section For checking of ceiling opening and the main unit position For positioning of the ceiling…

1 PRECAUTIONS FOR SAFETY

• Install the air conditioner securely in a location where the base can sustain the weight of the unit adequately. • Perform the specified installation work to guard against an earthquake. Installation space Ensure there is sufficient space to install the unit and to perform maintenance work as and…

2 SELECTION OF INSTALLATION PLACE

Dimensional view In case of wireless type 200 200 Stand-up 850 or less 300 or less Indoor unit Ceiling Note) As ABS is used for the drain discharge port of the main unit, the vinyl chloride paste cannot be used. Use the flexible hose (Band fix) included in the package. 120 • Wired remote controller…

3 INSTALLATION OF INDOOR UNIT

Ceiling opening and installation of hanging bolts Installation of indoor unit • Evaluate and determine the piping and wiring requirements inside the ceiling prior to the hanging of the unit. • After installation place of the indoor unit has been determined, create opening in ceiling and install the…

4 DRAIN PIPING WORK

Pipe material/Insulator and size Connection of drain pipe • Install the drain piping so that the water drains effectively. The following materials for piping work and insulation are to be procured locally. • Apply heat insulation to prevent dew condensation from forming. Pipe material Hard vinyl…

5 REFRIGERANT PIPING

4 DRAIN PIPING WORK WARNING Thermal insulating process • After checking of the draining, using the supplied thermal insulation fit to the flexible hose leaving no clearance at the connecting port of the indoor unit. • Fit locally procured thermal insulation to the drain pipe leaving no clearance…

5 REFRIGERANT PIPING

• Projection margin in flaring : B (Unit : mm) B For carrying out airtight test, air purge, gas leak check and addition of refrigerant refer to the Installation Manual supplied with the outdoor unit. Rigid (Clutch type) Outer diam. of copper pipe Conventional tool used R410A tool used R410A R22…

Power supply specifications

Cable connection Power supply wiring and communication wiring are to be procured locally. For the power supply specification, follow the table below. Ensure power supply is adequate. An insufficient power supply could result in unit failure. For specification of the power capacity of the outdoor…

7 APPLICABLE CONTROLS

6 ELECTRIC WORK NOTIFICATION Remote controller wiring • Strip approximately 14 mm of insulation off of the connecting wires. • As the remote controller wire has no polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed. Wiring diagram Terminal block for…

7 APPLICABLE CONTROLS

In case of installation to high ceiling Change of lighting time of filter sign When the unit is to be installed at a height that exceeds the standard value, adjustment to the air volume is necessary. • For the “Setup data” in Procedure 2 , select from the “Installable ceiling height list”.…

8 TEST RUN

Before test operation In case of wireless remote controller WARNING • Before turning on the power supply, carry out the following procedures. 1) Using 500V-megger, check there is 1MΩ or more between the terminal block of the power supply and the earth. If 1MΩ or less is detected, do not run the…

Confirmation and check

Check method When a fault occurs in the air conditioner, the check code and the indoor unit No. will appear on the display part of the remote controller. The check code will only be displayed while the unit is in operation. If the display disappears, operate the air conditioner according to the…

Wireless remote controller

¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ l l l ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ l ¡ ¡ ¡ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ 01: IPDU1 error 02: IPDU2 error 03: IPDU3 error 04: Fan IPDU error 05: IPDU1 + Fan IPDU error 06: IPDU2 + Fan IPDU error 07: All IPDU error ¤ ¡ ¤ Detected indoor address ¤ — — F02 — — F03…

10 MAINTENANCE

9 TROUBLESHOOTING Prior to maintenance, ensure the power supply is turned off. New check code CAUTION 1. Difference between the new check code and the current system The displaying method of the check code will change from this model onwards. Do not handle the buttons with wet hands as this will…

4. REFRIGERATING CYCLE DIAGRAM

Liquid side Gas side Strainer Capillary tube Air heat exchanger at indoor side Pulse Motor Valve (PMV) Strainer Sensor (TCJ) Sensor (TC2) Fan Sensor (TC1) Sensor (TA) M Fan motor Functional outline Functional part name Pulse Motor Valve PMV (Connector CN082 (6P): Blue) 1) Controls super heat in…

5. CONTROL OUTLINE

5-1. Control Specifications No. Item Outline of specifications Remarks 1 Power supply is reset. 1. Distinction of outdoor unit When the power supply is reset, the outdoor units are distinguished, and control is exchanged according to the distinctive results. 2. Check code clear When the power supply…

Outline of specifications

6 Prevention of cold air discharge 1. In all heating operation, the upper limit of the fan tap is set by one with higher temperature of TC2 sensor and TCJ sensor. • When B zone has continued for 6 minutes, the operation shifts to C zone. • In defrost time, the control point is set to +6°C. (˚C) 32 E…

Outline of specifications

Remarks 8 Recovery control for cooling refrigerant and oil 1. The indoor unit which stops operation, thermostat is OFF, or operates in FAN mode opens PMV of the indoor unit by the specified opening degree when cooling refrigerant or oil recovery signal is received from the outdoor unit. 2. Drain…

Outline of specifications

15 “ ” and “ ” display (Operation and heating stand-by) <Operation standby> Display on remote controller 1. • “P05” is one of displays of power wire missing. • “P05” of power cable is detected. • “COOL/DRY” operation cannot be performed because the other indoor unit is under “HEAT” operation. •…

6. APPLIED CONTROL

6-1. Setup of Selecting Function in Indoor Unit (Be sure to Execute Setup by a Wired Remote Controller) <Procedure> Execute the setup operation while the unit stops. TEMP. FILTER RESET TEST ON / OFF TIMER SET FAN MODE TIME SWING/FIX VENT SET CL 4 UNIT 1 1 Push SET 2 , CL , and TEST buttons…

Table: Function selecting item numbers (DN)

(Items necessary to perform the applied control at the local site are described.) DN Item 01 Filter display delay timer 0000 : None 0002 : 2500H 0004 : 10000H 02 Dirty state of filter 0000 : Standard 0001 : High degree of dirt (Half of standard time) 0000 : Standard 03 Central control address 0001…

TYPE

Indoor unit capacity Item code [10] Item code [11] Setup data Type Abbreviated Model name 0014 Compact 4-way Air Discharge Cassette MMU-AP XXX MH Setup data Model 0001 007 0003 009 0005 012 0007 015 0009 018 6-2. Applied Control in Indoor Unit n Remote location ON/OFF control box (TCB-IFCB-4E)…

n 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. • Use a fan which can receive the no-voltage A contact as an…

n 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 item code - is set to the connected indoor unit. • It is used…

7. TROUBLESHOOTING

7-1. Troubleshooting Summary 1. Before troubleshooting 1) Applied models Q S-MMS Multi type models Indoor unit: MMX-APXXX, Outdoor unit: MMY-MAPXXXHT8, MMY-MAPXXXT7 R Super Heat Recovery Multi type models Indoor unit: MMX-APXXX, Outdoor unit: MMY-MAPXXXFT8 S Mini-S-MMS Multi type models Indoor unit…

7-2. Check Method

On the remote controller (Main remote controller, Central control remote controller) and the interface P.C. board of the outdoor unit, a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation is provided. Therefore the operation…

remote

controller display Wireless remote controller Sensor block display of receiving unit Outdoor 7-segment display Auxiliary code F01 — — F02 — — F03 — — F04 F04 — F05 F05 — F06 F06 — F07 F07 — F08 F08 — F10 — — F12 F12 — 01: Comp. 1 side 02: Comp. 2 side Operation Timer Ready ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤…

remote

controller display Wireless remote controller P01 — P03 P03 Auxiliary code Operation — l P04 P04 P05 P05 01: Phase-missing detection 02: Phase error P07 P07 01: Comp. 1 side 02: Comp. 2 side P10 P10 Detected indoor address P12 — — P13 P13 — P19 P19 P20 P20 — Detected outdoor unit number — 0 1 P22 3…

The check code

1. The TCC LINK check code The displaying method of the check code. TCC Link Used characters Alphabet + Decimal notation, 2 digits |→ Characteristics of code classification Many classification of communication/ incorrect setup system Block display Communication/Incorrect setup (4…

7-3. Troubleshooting by Check Display on Remote Controller

In case of wired remote controller (RBC-AMT31E) 1. Confirmation and check CODE No. When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller. The check code is displayed while the air conditioner operates. If…

In case of central remote controller (TCB-SC642TLE)

ZONE ALL ZONE GROUP CODE No. 1234 SET DATA SETTING R.C. UNIT No. TEST No. GROUP SELECT ZONE CL SET 1. Confirmation and check When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller. The check code is…

7-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit

(7-Segment Display of Interface) Check code Outdoor 7-segment display Main remote controller Check code Auxiliary code Detected position Check code name Status Error detection condition Check item (position) 51 E01 — — Remote controller Communication error between Corresponding Communication…

remote

Auxiliary code controller Check code Detected position Check code name Status Error detection condition Check item (position) 52 E12 E12 01: Indoor/outdoor communication 02: Between outdoors communication I/F Automatic address start error All stop • When indoor automatic address started, other…

Detected

position Check code name Status Error detection condition I/F IPDU communication error All stop Communication of each IPDU (P.C. board) in inverter box interrupted. 53 Main remote controller Check code Auxiliary code E31 E31 01: IPDU1 error 02: IPDU2 error 03: IPDU1, 2 errors 04: Fan IPDU error 05…

Detected

position 54 Main remote controller Check code Auxiliary code F13 F13 01: Compressor 1 side 02: Compressor 2 side IPDU TH sensor error All stop • Resistance value of sensor is infinite or zero (Open/Short). • IGBT built-in temp sensor error → Exchange IPDU P.C. board. F15 F15 — I/F Outdoor temp…

remote

controller Check code Auxiliary code H03 H03 01: Compressor 1 side Detected position Check code name Status IPDU Current detection circuit system error All stop While header compressor stopped, current flowed • Check cabling of current detection circuit system. more than the specified current and…

remote

controller Outdoor 7-segment display Check code Auxiliary code H07 H07 — Detected position Check code name Status Error detection condition I/F Protection for oil level drop detection All stop The operating compressor detected oil shortage continuously for 2 hours. Check item (position) <Check all…

remote

Auxiliary code controller Check code H16 H16 01: TK1 oil circuit system error Detected position Check code name Status Error detection condition I/F Oil level detective circuit system error All stop Temperature change of TK1 could not be detected though compressor 1 started the operation. 02: TK2…

remote

controller Check code L06 L06 L07 — L08 L08 Detected position Check code name Status I/F Duplicated indoor units with priority (Displayed on the unit other than indoor unit with priority) All stop — Indoor Group line in individual indoor unit. Corresponding At least one indoor unit connected unit…

Detected

position Check code name — Indoor Indoor fan motor error — I/F Discharge temp TD1 error All stop Discharge temp (TD1) exceeded 115°C. • Check full opening of outdoor service valves (Gas side, Liquid side). • Check clogging of outdoor PMV. (PMV1,2) • Check characteristics of TD1 sensor resistance…

remote

Auxiliary code controller Check code Detected position Check code name Status Error detection condition Check item (position) P07 P07 01: Compressor 1 side 02: Compressor 2 side IPDU I/F Heat sink overheat error All stop IGBT built-in temp sensor (TH) was overheated. • Check power voltage. • Check…

remote

Auxiliary code controller Check code Detected position Check code name Status Error detection condition Check item (position) P17 — I/F Discharge temp TD2 error All stop Discharge temperature (TD2) exceeded 115°C. P19 P19 Detected outdoor unit No. I/F 4-way valve operation error All stop When…

remote

controller Check code Auxiliary code P22 P22 0: IGBT shortage Detected position Check code name Status FAN-IPDU Outdoor fan IPDU error All stop Error detection condition (Auxiliary code: 0) Check item (position) • Check fan motor. (Interphase short-circuit) 1: Position detection circuit error •…

Error detected by TCC-LINK central control device

Check code Outdoor 7-segment display Display on central control device Check code C05 — Detected position Check code name TCC-LINK TCC-LINK central control device transmission error Status Error detection condition Check item (position) Auxiliary code Operation Signal is not transmit from continued.…

Cautions when servicing for compressor

1. Removing wires of both compressors check output of the inverter as described below. How to check inverter output 1. Turn off the power supply. 2. Remove the compressor lead cables from the compressors. (Be sure to remove lead cables of both compressors.) 3. Turn on the power supply and start…

7-5. Diagnosis Procedure for Each Check Code

Check code Check code name [E01] Cause of operation Communication error between 1. Remote controller inter-unit cable error indoor and remote controller 2. Indoor power error (Detected at remote controller side) 3. Indoor P.C. board error 4. Remote controller address setup error 5. Remote controller…

[E06]

Cause of operation Decreased number of indoor units 1. Communication lines (U1, U2) connection Check code Check code name Cause of operation [E07] Indoor/Outdoor communication circuit error (Detected at outdoor side) 1. Indoor/outdoor communication end terminal resistance setup error 2.…

[E08]

Duplicated indoor addresses Cause of operation Indoor addresses are duplicated. Check code Check code name Cause of operation [E12] Automatic address start error 1. When indoor automatic address started, other refrigerant circuit system was setting automatic address. (Sub code : 01) 2. When outdoor…

Cause of operation

Check code Check code name Cause of operation [E16] Connected indoor units capacity over 1. There are 48 or more connected indoor units. 2. Capacity over of total connected indoor units. 3. Incorrect setup of indoor/outdoor capacity [E18] Communication error between indoor header and follower…

[E20]

Unit connected to other line during automatic address Cause of operation When starting automatic indoor address, a device in other line is connected. Auxiliary code : 01: Connection of outdoor in other line 02: Connection of indoor unit in other line Check code Check code name Cause of operation…

[E31]

IPDU communication error Cause of operation 1. Connection error of communication line between IPDU and I/F P.C. board 2. I/F P.C. board error 3. IPDU P.C. board error 4. External noise Check code Check code name [F01] Indoor TCJ sensor error Is TCJ sensor connector (CN102: Red) on indoor P.C. board…

[F04]

TD1 sensor error Cause of operation TD1 sensor Open/Short This error code means detection of Open/Short of TD1 sensor. Check disconnection of circuit for connection of connector (TD1 sensor: CN502, White) and characteristics of sensor resistance value. (Refer to Outdoor unit temperature sensor…

[F15]

Outdoor temp sensor miscabling (TE1, TL) Cause of operation 1. Misinstallation and misconnection of TE1 sensor and TL sensor 2. Resistance characteristics error of TE1 sensor and TL sensor 3. Outdoor P.C. board (I/F) error NO Are installed positions of TE1 sensor and TL sensor correct? Outdoor I/F…

Cause of operation

Check code name Check code name Cause of operation [F31] Outdoor EEPROM error 1. Outdoor unit power error (Voltage, noise, etc.) 2. Outdoor I/F P.C. board error [H02] Compressor error (Lock) 1. Outdoor unit power line error 2. Compressor circuit system error 3. Compressor error 4. Refrigerant…

[H04]

Compressor 1 case thermo operation [H14] Compressor 2 case thermo operation Is case thermo circuit normal? 1. Connector connection 2. Wiring 3. I/F P.C. board (Note 1) YES Are service valves of gas pipe and liquid pipe of outdoor unit fully opened? Cause of operation NO Repair case thermo circuit.…

Cause of operation

[H07] Oil level down detection protection 1. Valves of balance pipes closed. 2. Miscabling or misinstallation of TK1 to TK4 sensors 3. TK1 to TK4 sensor error 4. Gas leak or oil leak of all outdoor units 5. Refrigerant stagnation of compressor case 6. SV3A, 3B, 3D, 3C, 3E valve error 7. Clogging of…

(*3) Check for solenoid valve of outdoor unit (For multiple outdoor unit system)

a) Clogging check for SV3A valve • While outdoor unit is operating, set up SW01/02/03 = [2] [1] [3] to 7-segment display [Hr] [ 2], and push SW04 for 2 seconds or more. • Set up SW02 = [4], and turn on SV3A valve. (7-segment display [Hr] [ 3A]) • If temperature is low at secondary side of the valve…

Cause of operation

Check code name Check code name Cause of operation [H16] Oil level detective circuit system error (Auxiliary code : 02) 1. Detachment of TK2 sensor, miscabling, characteristics error of resistance value 2. Oil-equalization circuit error (Check valve, capillary clogging, strainer clogging) 3.…

Cause of operation

Check code name Check code name Cause of operation [H16] TK4 temperature detective circuit error (Auxiliary code : 04) 1. Detachment of TK4 sensor, miscabling, characteristics error of resistance value 2. Check clogging and malfunction of SV3E valve circuit. 3. Oil-equalization circuit error (Check…

[L07]

Group line in individual indoor unit YES Is there group cabling? Cause of operation The group line is connected in the individual indoor unit. Item code (D1) 12: Line address Item code (D2) 13: Indoor address Item code (D3) 14: Group address Check setup item code DN 12, 13, and 14 addresses. NO…

Cause of operation

Check code name Check code name Cause of operation [L18] Flow selector unit system error An indoor unit which has been operated in cooling only mode is operated in heating mode without setup for cooling only mode. [L29] IPDU quantity error 1. Incorrect model setup in service for I/F P.C. board 2.…

[L30]

Interlock in indoor unit from outside Is outside device connected to connector CN80? Cause of operation Outside error was input. NO Check indoor P.C. board. Replace Failure NO Check outside device. Failure Replace Check code name Check code name Cause of operation [P03] Discharge temp TD1 error 1.…

Cause of operation

[P04] Actuation of high-pressure SW 1. High-pressure SW error 2. Service valve closed 3. Pd sensor error 4. Indoor/outdoor fan error 5. Indoor/outdoor PMV choke 6. Indoor/outdoor heat exchanger clogging, air short circuit 7. SV2 circuit error 8. SV4 circuit error 9. SV5 circuit error 10. Discharge…

[P07]

Heat sink overheat error Cause of operation 1. Power voltage error 2. Outdoor fan system error 3. Heat sink installation error 4. Clogging of hear sink cooling duct 5. IPDU P.C. board error (TH sensor error) Check code name Check code name [P12] Indoor fan motor error Cause of operation 1. Cabling…

[P13]

Cause of operation Outdoor liquid back detection error 1. PMV1/PMV2 error Check code name Check code name [P15] Gas leak detection TS condition (Auxiliary code : 01) 2. Pd sensor, Ps sensor error 3. Clogging of SV2 circuit 4. Clogging of SV3B circuit, balance pipe 5. Leakage of main discharge pipe…

[P15]

Gas leak detection TD condition (Auxiliary code : 02) Are service valves of gas and liquid sides fully opened? Cause of operation 1. Outdoor unit service valve closed 2. Outdoor PMV error 3. TD sensor error 4. SV4 circuit error 5. Refrigerant shortage, clogging refrigerant circuit NO Check code name…

[P19]

4-way valve operation error Cause of operation 1. 4-way valve error 2. TS1 sensor/TE1 sensor error 3. Pd sensor/Ps sensor error 4. TE sensor/TL sensor misconnection Check code name Check code name Cause of operation [P20] High-pressure protective operation 1. Pd sensor error 2. Service valve closed.…

C

Check code name Check code name [P22] Outdoor fan IPDU error All heating operation Is connector connection of indoor heat exchanger fan or fan motor normal? NO Does heating indoor fan normally operate? YES Cause of operation 1. Fan lock 2. Fan IPDU P.C. board error 3. Overload cause 4. External…

[P26]

G-Tr short-circuit protection error Cause of operation 1. Outdoor unit power error 2. IPDU error/Cable connection error 3. Compressor error 4. IPDU P.C. board error Check code name Check code name [P29] Compressor position detective circuit error Cause of operation 1) Cable/connector connection…

7-6. 7-Segment Display Function

n 7-segment display on the outdoor unit (Interface P.C. board) On the interface control P.C. board, 7-segment LED to check the operating status is provided on the control P.C. board. The displayed contents are changed by combining the setup numbers of the rotary switches (SW01, SW02, and SW03) on…

1. Data display of system information (Displayed on the header outdoor unit only)

SW01 SW02 SW03 Display contents Refrigerant name System capacity No. of outdoor units No. of connected indoor units/ No. of units with cooling thermo ON No. of connected indoor units/ No. of units with heating thermo ON Compressor command correction amount Release control Oil-equalization control…

2. Data display of outdoor unit information (Displayed on each outdoor unit)

3. Data display of outdoor cycle (Displayed on each outdoor unit)

SW01 SW02 SW03 Display contents Pd pressure data Pd pressure (MPaG) is displayed with decimal data. (MPaG: Approx. 1/10 value of kg/cm2G data) A B P d. ∗. ∗ ∗ 2 Ps pressure data P S. ∗. ∗ ∗ 3 PL pressure conversion data Estimated pressure of liquid line (MPaG) is displayed with decimal data. P L. ∗.…

5. Outdoor EEPROM write-in error code display (Displayed on the header unit only)

∗ The latest error code written in EEPROM of each outdoor unit is displayed. (It is used when confirming the error code after power supply has been reset.) Set SW01 to 03 as shown in the following table, and the push SW04 for 5 seconds or more to display an error code. W01 1 SW02 SW03 7-segment…

Key switch

Display LED CN2 CN1 Function setup CPU Remote controller communication circuit Indoor unit #1 A #2 A Remote controller communication circuit B *1 However in a case that the network adaptor is installed when 2 remote controllers are connected, maximum 7 units are connectable. EEPROM DC12V TA sensor…

B

Wireless remote controller kit Network Remote adaptor controller P.C. board communication (MCC-1401) circuit Indoor control P.C. board (MCC-1402) Remote controller communication circuit EEPROM CPU H8/3687 #3 A B Power circuit Emergent operation SW CPU TA sensor DC5V Buzzer TCI sensor Power circuit B…

Display

LCD Function setup Display LCD Key switch CPU Display LED CN2 CN1 A Function setup DC5V DC5V Power circuit CPU Key switch Remote controller communication circuit Indoor unit #1 LCD driver Power circuit *3 Secondary battery #2 A B Network adaptor P.C. board (MCC-1401) #3 A B Sensor P.C. board Indoor…

EEPROM

DC fan output Power supply Optional power supply PMV output Remote controller power supply LED 97 DC fan return *1 Drain pump output *1 Float SW Fan output HA (T10) TA sensor Optional output Flap (Used only for 4-way Air Discharge Cassette Type,Under ceiling type) TCJ sensor EXCT DISP Used for CHK…

8-1-3. Optional Connector Specifications of Indoor P.C. Board

Function Humidifier output Fan output — Connector No. Pin No. CN66 DC12V Output DC12V Output ON/OFF input 0V (COM) Operation output CN32 CN61 Remarks Specifications In heating, thermo ON, Fan ON, Humidifier output ON * Humidifier provided, Drain pump ON is set up by CN70…

9. DETACHMENTS

9-1. Indoor Unit MMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH Ceiling panel: RBC-UM11PG-E Preparing work: 1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply breaker. (Otherwise an electric shock may be caused.) 2. Be sure to put on…

Adjust corner cover Procedure Remarks 1. Detachment 1) Perform work of procedure of 1 -1. 2) Turn clockwise screws (4 positions) at the suction port corner until adjust corner cover rises up. NOTE) 1 When you work, keep the torque at below 12N•m. Do not use an electric screwdriver; otherwise the…

Control P.C. board Procedure Remarks 1. Detachment 1) Perform works of procedure 1 -1- and 2 -1. 2) Remove the connectors connected from the control P.C. board to other parts. CN33 : Flap motor (5P, White) CN34 : Float switch (3P, Red) CN41 : Terminal block of remote controller (3P, Blue) CN40…

Part name Electric parts box Procedure Remarks 1. Detachment 1) Perform works of procedure 1 -1-and 2 -1. 2) Remove connectors of the lead wire connected to the following connectors of the control P.C. board. CN33 : Flap motor (5P, White) CN34 : Float switch (3P, Red) CN68 : Drain pump (3P, Blue)…

Fan guard Procedure Remarks 1. Detachment 1) Perform work of procedure 1 -1. 2) Take off screws fixing the fan guard. (Ø4 × 10, [Screws for plastic molding] 4 pcs.) Fan guard NOTE) The specification of fixing screws for the fan guard differs from those of other fixing screws. Therefore keep them…

Fan motor Procedure Remarks 1. Detachment 1) Perform work of procedure 9 . 2) Take off screws fixed with lead holding bracket of the fan motor. (Ø4 × 10, 2 pcs.) 3) Open wiring holding part of the fan motor lead holding bracket and then take off the fan motor lead wire from the bracket. 4) Take off…

Drain pan Procedure Remarks 1) Perform works of procedure 4 -1 and 8 -1. 2) Remove the drain cap and extract drain water accumulated in the drain pan. 2 screws 1. Detachment NOTE) Socket of drain pan When removing the drain cap, be sure to receive drain water with a bucket, etc. 3) Take off screws…

Procedure

13 PMV (Pulse Motor Valve) Remarks 1. Detachment 1) Perform work of procedure 11 -1. 2) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the piping cover. 3) Cut off binding band that binds the PMV lead wires. 4) Peel butyl rubber of PMV a little and remove PMV motor with a…

Heat exchanger Procedure Remarks 1. Detachment 1) Recover refrigerant gas. 2) Remove the refrigerant pipe at indoor unit side. 3) Perform work of procedure 11 -1. 4) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the piping cover. 5) While holding the heat exchanger, remove…

10. P.C. BOARD EXCHANGE PROCEDURES

10-1. Exchange of P.C. Board for Indoor Service Part code Model type P.C. board model Label display on P.C. board 431-6V-269 MMU-AP ✻✻ 1H series MMU-AP ✻✻ 1MH series MMC-AP ✻✻ 1H series MMK-AP ✻✻ 1H series MMD-AP ✻✻ 1SPH/SH series MMU-AP ✻✻ 2SH series MCC-1402 03DD M05 Requirement at exchange of…

Method 2

Before exchange, it is impossible to read out the setup contents due to EEPROM error. Exchange of P.C. board for service & power ON: Procedure 2 ò Writing-in of the setup data such as the model name, capacity code, indoor unit address high ceiling setup, connection setup of option, etc to EEPROM…

Procedure 2 : Exchange of P.C. board for service

1. Exchange P.C. board with a P.C. board for service. In this time, the jumper line (cut) setup or the (short-circuit) connecting connector setup on the previous P.C. board should be reflected on P.C. board for service. (See the blow figures.) (MCC-1402) JP1 (MCC-1403) CN41 CN34 JP001 CN041 CN030…

Procedure 3 : Writing-in of setup contents to EEPROM

(The EEPROM contents which are installed on the service P.C. board have been set up at shipment from the factory.) 1 1. Push SET + CL + TEST buttons simultaneously for 4 seconds or more. ( is displayed in the UNIT No box.) In this time, is displayed in the item code (DN). The fan of the indoor unit…

<Make a note of the setup contents. (Item code list (Example))>

DN Item Memo Setup at shipment from factory 01 Filter sign lighting time According to type 02 Dirty condition of filter 0000: Standard 03 Central control address 0099: Undefined 06 Heating inlet temp. shift 0002: +2°C (Floor standing: 0) 0d Cooling Auto mode existence 0001: No auto mode…

11. EXPLODED VIEWS AND PARTS LIST

11-1. Ceiling Panel RBC-UM11PG(W)E Location No. Part No. 43109414 4302C059 43180332 43497012 43100322 43107259 43122089 43122090 Description Grille, Air Inlet Motor, Louver Air Filter Screw Cover, Panel Ass’y Grille, Catch Cover, Joint (For Joint) Cover, Joint (For Motor) 113 Location No. Part No.…

11-2. Compact 4-way Air Discharge Cassette Type

Location

No. Part No. Description 43120225 43122094 43172185 43172186 43121738 43146707 43146713 43146714 209 4314J263 210 4314J264 4314Q006 4314Q007 43047685 43049776 43149351 43047688 43149353 43047609 43147195 43049697 43170244 43079249 43060029 224 43163052 43119482 43170248 43119483 43097212 43107215…

TOSHIBA CARRIER CORPORATION

Инструкция на Мультизональные VRF системы Toshiba (сервис-мануалы)

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