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

FILE NO. A08-004

SERVICE MANUAL <4-Way Air Discharge Cassette Type> MMU-AP0092H, MMU-AP0122H, MMU-AP0152H, MMU-AP0182H, MMU-AP0242H, MMU-AP0272H, MMU-AP0302H, MMU-AP0362H, MMU-AP0482H, MMU-AP0562H, • This Service Manual describes contents of the 4-Way Air Discharge Cassette indoor unit. For the outdoor unit, refer…

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. SPECIFICATIONS

1-1. Indoor Unit Model name MMU-AP0092H MMU-AP0122H Cooling capacity (*1) kW 2.8 3.6 Heating capacity (*1) kW 3.2 4.0 1phase 50Hz 230V(220V-240V) /1phase 60Hz 220V (Separate power supply for indoor units is required.) Power supply Electrical charastaristics Running current Power consumption Starting…

MMU-AP0152H

MMU-AP0182H Cooling capacity (*1) kW 4.5 5.6 Heating capacity (*1) kW 5.0 6.3 1phase 50Hz 230V (220V-240V) / 1phase 60Hz 220V (Separate power supply for indoor units is required.) Power supply Electrical charastaristics Running current Power consumption Starting current A 0.27 / 0.28 0.29 / 0.30 kW…

MMU-AP0242H

MMU-AP0272H MMU-AP0302H Cooling capacity (*1) kW 7.1 8.0 9.0 Heating capacity (*1) kW 8.0 9.0 10.0 1 phase 50Hz 230V (220V-240V) / 1 phase 60Hz 220V (Separate power supply for indoor units is required.) Power supply Electrical charastaristics Running current Power consumption Starting current A 0.38…

MMU-AP0362H

MMU-AP0482H MMU-AP0562H Cooling capacity (*1) kW 11.2 14.0 16.0 Heating capacity (*1) kW 12.5 16.0 18.0 1 phase 50Hz 230V (220V-240V) / 1 phase 60Hz 220V (Separate power supply for indoor units is required.) Power supply Electrical charastaristics Running current Power consumption Starting current A…

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

MMU-AP0092H, AP0122H 15 or more 1000 or more An obstacle 1000 or more 15 or more 860 to 910 Ceiling open dimension 1000 or more 860 to 910 Ceiling open dimension 300 or less Refrigerant pipe connecting port Ø6.4 (Liquid side) Refrigerant pipe connecting port Ø9.5 (Gas side) Bottom face of ceiling…

15 or more 300 or less Standing 661 or less The space that is necessary for equipping and service Bottom face of ceiling 105 397.5 263 157 106.5 72 241.5 Refrigerant pipe connecting port Ø12.7 (Gas side) Bottom face of ceiling 337.5 Indoor unit Refrigerant pipe connecting port Ø6.4 (Liquid side) An…

15 or more 300 or less Standing 661 or less The space that is necessary for equipping and service Bottom face of ceiling 105 397.5 263 157 106.5 72 241.5 Refrigerant pipe connecting port Ø15.9 (Gas side) Bottom face of ceiling 337.5 Indoor unit Refrigerant pipe connecting port Ø9.5 (Liquid side) An…

15 or more 1000 or more An obstacle 1000 or more 15 or more 860 to 910 Ceiling open dimension 1000 or more 860 to 910 Ceiling open dimension Take-in port of wiring Bottom face of ceiling 30 Refrigerant pipe connecting port Ø15.9 (Gas side) Bottom face of ceiling Indoor unit 137 Refrigerant pipe…

3. WIRING DIAGRAM

3-1. 4-Way Air Discharge Cassette Type LM1 Flow Selector unit (Option) Control P.C. board (MCC-1431) CN02 (GRN) CN82 (BLU) CN334 (WHI) CN81 (BLK) Indoor unit Earth screw CN333 (WHI) ~ + CN510 (WHI) DM CN34 (RED) FS CN104 (YEL) ON CN102 (RED) CN101 (BLK) CN100 (BRW) CN519 (WHI) DC20V DC15V DC12V DC7V…

4. PARTS RATING

4-1. Parts Rating MMUModel AP0092H AP0122H AP0152H Fan motor AP0242H AP0272H AP0302H SWF-230-60-2R Motor for horizontal grille MP24ZN3N Pulse motor Pulse motor valve AP0182H EDM-MD12TF-3 EDM-B25YGTF-3 EDM-B40YGTF-2 TA sensor Lead wire length : 310 mm Vinyl tube TC1 sensor Ø4 size lead wire length…

4-3. Parts Name of Remote Controller

n Display section In the display example, all indicators are displayed for the explanation. In reality only, the selected contents are indicated. • When turning on the main power switch and leak breaker at the first time, SETTING flashes on the display part of the remote controller. • While this…

Air volume select display 19 Unit Number display The selected air volume mode is displayed. (HIGH) (AUTO) (MED.) (LOW) Unit number of the indoor unit selected with the unit select button or abnormal indication of the indoor/outdoor unit. 20 Central control display 15 Louver Number display Displayed…

n Operation section

Push each button to select a desired operation. • The details of the operation needs to be set up once, afterward, the air conditioner can be used by ON / OFF button only. pushing 1 8 TEMP. FILTER RESET TEST ON / OFF TIMER SET FAN MODE TIME SAVE VENT SWING/FIX UNIT LOUVER SET CL FAN button (Air…

4-4. 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 ON / OFF the button only. n Preparation Turn on the main power switch and/or the leakage…

• Start the cooling operation after approx. 1 minute. [In case of heating (For Heat-pump model only)] • The heating operation mode is selected in accordance with the room temperature and operation starts after approximately 3 to 5 minutes. • After the heating operation has stopped, FAN operation may…

4-6. Adjustment of Wind Direction

For best cooling and heating performance, adjust the louvers (adjustment of up/down wind direction) appropriately. CAUTION • If cooling operation is performed with downward air outlet, dew may fall on surface of the cabinet or the horizontal louver resulted in dripping. • If heating operation is…

u 4-way Air Discharge Cassette, 1-way Air Discharge Cassette (2SH series),

Under CeilingType FILTER RESET TEST TIMER SET FAN MODE TIME SAVE VENT SWING/FIX UNIT LOUVER SET CL Unit select button 1 n How to set up the wind direction n How to stop swinging 1 Push 1 Push SWING/FIX during operation. The wind direction changes for every push of the button. SWING/FIX at a desired…

u 4-way Air Discharge Cassette Type

(2H series only ) FILTER RESET TEST ON / OFF TIMER SET FAN MODE TIME SAVE VENT SWING/FIX UNIT LOUVER SET CL SWING/FIX . louver by pushing • Each time you push the button, the display changes as follows: Unit select button 3 TEMP. 3 Determine wind direction of the selected (1) (2) (6) (7) (4) (3) (5)…

4-7. Timer Operation

• A type of timer operation can be selected from the following three types. (Setting of up to 168 hours is enabled.) 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…

4-8. INSTALLATION

Installation place CAUTION • Check that the air conditioner is not installed in a place subject to combustible gas leak. Accumulation of combustible gas around the unit may cause a fire. • Drain the dehumidified water from the indoor unit and outdoor unit to a well-drained place. • Do not put any…

4-9. Maintenance

WARNING Be sure to turn off the main power switch prior to the maintenance. • Please do not intend to do the daily maintenance and/or Air Filter cleaning by yourself. Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service…

NOTE

• For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner. When the air conditioner is operated for a long time, periodic maintenance (once a…

4-10. Air Cinditioner Operations and Performance

Check before operation WARNING • Check whether earth wire is disconnected or out of place. • Check that air filter is installed to the indoor unit. • Check that the air outlet or inlet is not blocked. • Turn on the main power switch or the circuit breaker for the main power supply to the air…

4-11. When the Following Symptoms Are Found

Check the points described below before asking repair servicing. Cause 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 operation…

Confirmation and check

When a trouble occurred in the air conditioner, the check code and the indoor unit No. appear on the display part of the remote controller. The check code is only displayed during the operation. If the display disappears, operate the air conditioner according to the following “Confirmation of error…

2 PRECAUTIONS FOR SAFETY

4-12. Installation Manusl 1 ACCESSORY PARTS n Accessory parts Part name Q’ty Shape Installation Manual 2 These manual Heat insulating pipe 2 Installation pattern 1 Installation gauge — Usage (Be sure to hand over to customers) For heat insulation of pipe connecting section — For confirmation of…

3 SELECTION OF INSTALLATION PLACE

2 PRECAUTIONS FOR SAFETY WARNING CAUTION New Refrigerant Air Conditioner Installation • THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER. • The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure…

3 SELECTION OF INSTALLATION PLACE

n Installation space REQUIREMENT Secure the specified space in the figure for installation and servicing. A mm AP0092H Type to AP0302H Type 271 or more AP0362H Type to AP0562H Type 334 or more 15 or more Model MMU- u When incorporating flesh-air inlet box (sold separately) Provide an inspection…

4 INSTALLATION

n Opening a ceiling and installation of hanging bolts REQUIREMENT Strictly comply with the following rules to prevent damage of the indoor units and human injury. • Do not put a heavy article on the indoor unit. (Even units are packaged) • Carry in the indoor unit as it is packaged if possible. If…

4 INSTALLATION

n Installation of ceiling panel (Sold separately) Installation of ceiling opening and hanging bolt Level vial (levelness: 5mm or less) Hanging bracket Indoor unit Level vial Hanging bracket (2)12 mm Hanging bolt Install the ceiling panel according to Installation Manual attached with it after…

5 DRAIN PIPING WORK

CAUTION n Flexible hose • Following the Installation Manual, perform the drain piping work so that water is properly drained, and apply a heat insulation so as not to cause a dew droping. Inappropriate piping work may result in water leakage in the room and wet of furniture. n Piping/Heat insulating…

6 REFRIGERANT PIPING AND EVACUATING

5 DRAIN PIPING WORK • Test water drain while checking the operation sound of the drain pump motor. (If the operation sound changes from continuous sound to intermittent sound, water is normally drained.) After the check, the drain pump motor runs, connecting the float switch connector. (In case of…

6 REFRIGERANT PIPING AND EVACUATING

n Airtight test/Air purge, etc. Tightening connection For airtight test, air purge, addition of refrigerant, and gas leak check, refer to the Installation Manual attached to the outdoor unit. CAUTION • Do not apply excessive torque. Otherwise, the nut may crack depending on the conditions. (Unit…

n Wire connection

u Communication line Control wiring between indoor units, and outdoor unit (2-core shield wire) Wire size (Up to 1000m) 1.25 mm² (Up to 2000m) 2.0 mm² Central control line wiring (2-core shield wire) Wire size (Up to 1000m) 1.25 mm² (Up to 2000m) 2.0 mm² Remote controller wiring • 2-core with…

n Remote controller wiring

n Wiring for flow selector unit (sold separately) • As the remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed. Connect control wiring and power supply following figure when installing a separately sold cooling/ heating…

controls REQUIREMENT • When you use this air conditioner for the first time, it takes approx. 5 minutes until the remote controller becomes available after power-on. This is normal. Basic procedure for changing settings Change the settings while the air conditioner is not working. (Be sure to stop…

n When wireless remote controller is used

n To secure better effect of eating Change the high-ceiling and filter settings with the DIP switch on the receiver section P.C. board. For details, refer to the manual of the wireless remote controller kit. The settings can also be changed with the switch on the indoor microcomputer P.C. board. ∗…

• About “Dual swing”

“Dual” means that louvers 01 and 03 are directed and swing in one direction and louvers 02 and 04 are directed and swing in the opposite direction. (When louvers 01 and 03 are directed downward, louvers 02 and 04 are directed holizontally.) • About “Cycle swing” The four louvers swing independently…

9 TEST RUN

n Before test run • Before turning on the power supply, carry out the following procedure. 1) Using 500V-megger, check that resistance of 1MΩ or more exists between the terminal block of the power supply and the earth (grounding). If resistance of less than 1MΩ is detected, do not run the unit. 2)…

10 MAINTENANCE

CAUTION Before maintenance, be sure to turn off the leakage breaker. Cleaning of air filter Use a vacuum cleaner to remove dust from the filters or wash them with water. • After rinsing the air filters with water, dry them in the shade. • Set the air filter into the air conditioner. Cleaning of…

10 MAINTENANCE

11 TROUBLE SHOOTING Maintenance List n Confirmation and check Part Check (visual/auditory) Maintenance Heat exchanger • Dust/dirt clogging, scratches • Wash the heat exchanger when it is clogged. Fan motor • Sound • Take appropriate measures when abnormal sound is generated. Filter • Dust/dirt…

n Check codes and parts to be checked

Wireless remote controller Check code Check method On the remote controller (Main remote controller, Central control remote controller) and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to…

Wireless remote controller

Check code Main remote controller display Sensor block display AI-NET of receiving unit central control display Operation Timer Ready Flash Outdoor 7-segment display Auxiliary code P01 — — 11 P03 P03 — 1E P04 P04 01: Comp. 1 side 02: Comp. 2 side 21 P05 P05 01: Phase-missing detection 02: Phase…

5. 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…

6. CONTROL OUTLINE

6-1. Control Specifications No. Item Outline of specifications 1 When power supply is reset 1) Distinction of outdoor unit When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of…

Room temp. control (Continued) Outline of specifications Remarks 2) Using the Item code 06, the setup temperature in heating operation can be corrected. Setup data Setup temp. correction +0°C +2°C +4°C +6°C Setting at shipment Setup data 4 Automatic capacity control +1 Ts –1 Automatic…

Air speed selection Outline of specifications Remarks 1) Operation with (HH), (H), (L) or [AUTO] mode is carried out by the command from the remote controller. 2) When the air speed mode [AUTO] is selected, the air speed varies by the difference between Ta and Ts. HH > H+ > H > L+ > L > UL <COOL> Ta…

Outline of specifications

Remarks 8 Freeze prevention control (Low temp. release) 1. In all cooling operation, the air conditioner operates as de-scribed below based upon temp. detected by TC1, TC2 and TCJ sensors. • When “J” zone is detected for 5 minutes, the thermostat is forcedly off. • In “K” zone, the timer count is…

Outline of specifications

Remarks 10 Recovery control for heating refrigerant (Oil) The indoor unit which is under STOP/Thermo-OFF status or which operates in [FAN] mode performs the following controls when it received the heating refrigerant (Oil) recovery signal from the outdoor unit. 1) Opens PMV of the indoor unit with a…

Outline of specifications

Remarks 16 Display of [READY] [HEAT READY] < READY> Displayed on the remote controller 1) When the following check codes are indicated • Open phase of power supply wiring [P05] was detected. • There is an indoor unit that detected the indoor overflow [P10]. • There is an indoor unit that detected…

Outline of specifications

18 Louver control: In case of 4-way Discharge Cassette type 1) Louver position setup • When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position. • The louver position can be set up in the following operation range. In…

Remarks

No. Item Outline of specifications 18 Louver contro (Continued): In case of 4-way Discharge Cassette type <<Selection of Swing mode>> • For the Swing mode, the following three types of modes are selectable and settable by keeping Swing/Direction SWING/FIX button pushed for 4 seconds or more on the…

Outline of specifications

Remarks 18 Louver control (Continued): In case of 4-way Discharge Cassette type • If there is the locked louver in the unit, [ ] goes on the remote controller screen. • While the following controls are performed, the louvers operate even if executing the louver lock. For the setting operation, refer…

7. CONFIGURATION OF CONTROL CIRCUIT

7-1. Indoor Unit 7-1-1. Indoor Controller Block Diagram 1. Connection of wired remote controller Wired remote controller (Up to 2 units) Display LCD Schedule timer (in weekly timer mode) Weekly timer Display LCD Function setup LCD driver Key switch Display LED CN1 CPU DC5V EEPROM Function setup CN2…

2. Connection of wireless remote controller kit

Indoor unit #1 A B Wireless remote controller kit Network adaptor (Option) Indoor control P.C. board (MCC-1570) Network adaptor P.C. board (MCC-1401) Remote controller communication circuit DC20V Power circuit B #3 A B Receiving P.C. board Remote controller communication circuit CPU Remote…

3. Connection of both wired remote controller and wireless remote controller kit

Wired remote controller Display LCD EEPROM Weekly timer Function setup Key switch CPU CN2 DC5V Display LED A Function setup CN1 Key switch *3 Power circuit Secondary battery B Wireless remote controller kit Network adaptor (Option) Indoor control P.C. board (MCC-1570) Network adaptor P.C. board…

Indoor/Outdoor communication

7-3. Functions at test run

n Cooling/Heating test run check The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C. board. 1. Start/Finish operation of test run ¤ Test run from indoor remote controller Wired remote controller: Refer to the below item of “Test run” of…

Procedure 1 Operation contents Push [ON/OFF] button on the remote controller. Change the operation mode to [COOL] or [HEAT] using [MODE] button and then select the air speed [ using [FAN]. H] Test run for cooling operation Test run for heating operation Set [18°C] using [Temperature set] button. Set…

n 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…

7-4. Optional Connector Specifications of Indoor P.C. Board

Function Connector No. Pin No. Specifications Remarks — CN66 — — — Fan output CN32 Q DC12V R Output Q ON/OFF input R 0V (COM) S Main prohibition input Operation stop of main remote controller is permitted / prohibited by input. T Operation output ON during operation (Answerback of HA) U DC12V (COM)…

8. APPLIED CONTROL

8-1. 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 SAVE VENT SWING/FIX UNIT LOUVER SET CL Push SET CL 4 TEST , , and 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…

DN

Item Description 5d High ceiling selection (Selection of air volume) Type AP009, AP012 AP015, AP018 0000: Standard Discharge 4-way 3-way 2-way 4-way 3-way 2-way 0000 Standard (At shipment) 2.7m 2.8m 3.0m 2.8m 3.2m 3.5m 0001 High ceiling — — — 3.2m 3.5m 3.8m 0003 High ceiling — — — 3.5m 3.8m…

8-2. Applied Control in Indoor Unit

n Remote location ON/OFF control box (TCB-IFCB-4E) [Wiring and setup] • Use the exclusive connector for connection with the indoor control P.C. board. • In a group control, the system can operate when connecting with any indoor unit (Control P.C. board) in the group. However when taking out the…

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 2E is set to the connected indoor unit. • It is used…

n Address setup (Manual setting from remote controller)

In case that addresses of the indoor units will be determined prior to piping work after cabling work • Set an indoor unit per a remote controller. • Turn on power supply. 1 Push SET CL (Example of 2-lines cabling) (Real line: Cabling, Broken line: Refrigerant pipe) Outdoor Outdoor TEST + + buttons…

1. To know the indoor unit addresses though position of the indoor unit is recognized • In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation) <Procedure> 1 Push 2 Push ON / OFF button if the unit stops. UNIT LOUVER button. Unit No.…

n Function selection setup

<Procedure> Perform setting while the air conditioner stops. 1 Push TEST SET CL + + buttons simultaneously for 4 seconds or more. The first displayed unit No. is the master indoor unit address in the group control. In this time, fan and louver of the selected indoor unit operate. ò 2 Every pushing…

n How to check all the unit No. from an arbitrary wired remote controller

<Procedure> Carry out this procedure during stop of system. The indoor unit No. and the position in the identical refrigerant piping can be checked. An outdoor unit is selected, the identical refrigerant piping and the indoor unit No. are displayed one after the other, and then its fan and louver…

n How to change all indoor addresses from an arbitrary wired remote controller

(It is possible when setting has finished by automatic addresses.) Contents: The indoor unit addresses in each identical refrigerant piping line can be changed from an arbitrary wired remote controller. ¤ Enter in address check/change mode and then change the address. <Procedure> Carry out this…

n Function to clear error

1. Clearing method from remote controller ¤ How to clear error of outdoor unit In the unit of refrigerant line connected by indoor unit of the remote controller to be operated, the error of the outdoor unit currently detected is cleared. (Error of the indoor unit is not cleared.) The service monitor…

n Monitoring function of remote controller switch

When using the remote controller (Model Name: RBC-AMT32E), the following monitoring function can be utilized. Calling of display <Contents> The temperature of each sensor of the remote controller, indoor unit and outdoor unit and the operating status can be checked by calling the service monitor…

1. D501 (Red) • D501 goes on at the same time when the power supply is turned on. (Goes on with operation of the main microprocessor) • D501 flashes with 1-second interval (every 0.5 second) : When there is no EEPROM or write-in error • D501 flashes with 10-seconds interval (every 5 second) : In…

9. TROUBLESHOOTING

9-1. Troubleshooting Summary 1. Before troubleshooting 1) Applied models S-MMS Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXXT8X, MMY-MAPXXXHT7X Super Heat Recovery Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXFT8X Mini-S-MMS Multi type models…

9-2. How to check

On the remote controller (Remote controller, Central control remote controller) and on the interface P.C. board of the outdoor unit, LCD display part (Remote controller) or 7-segment display part (on outdoor interface P.C. board) is provided in order to display the operation status. When a trouble…

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. [Remote controller detects error.] Check code display Sensor lamp display Outdoor 7-segment AI-NET central Remote controller (Network…

Check code display list (Outdoor unit)

(S-MMS standard & accumulating outdoor interface detect: Representative example) Sensor lamp display Check code display Outdoor 7-segment Auxiliary code (∗) ¡: Goes on, ¥: Flashes, l: Goes off A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two…

(∗) ¡: Goes on, ¥: Flashes, l: Goes off

A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. Check code display Outdoor 7-segment Auxiliary code Sensor lamp display Block display (∗) TCC-LINK central AI-NET central & remote…

[IPDU in S-MMS standard outdoor unit detects: Representative example]

Sensor lamp display Check code display Outdoor 7-segment Auxiliary code (∗) ¡: Goes on, ¥: Flashes, l: Goes off A (Alternate) : Flashing condition is alternate when there are two flashing LED. S (Simultaneously) : Two LED flash simultaneously when there are two flashing LED. Block display (∗)…

9-3. Troubleshooting by Check Display on Remote Controller

n In case of wired remote controller (RBC-AMT32E) 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 displayed while the air conditioner operates. If the…

n In case of central remote controller (TCB-SC642TLE2)

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…

n Indoor unit display part (Receiving unit) (Wireless type)

When specifying the check code, check 7-segment display on the center unit. For the check code which is not displayed on the outdoor 7-segment, confirm it in Section “9-2 How to Check / Check code display list (Indoor unit)”. : Goes off, Lamp indication Operation Timer Check code : Goes on, : Flash…

Lamp indication

Operation Timer Ready Alternate flash Operation Timer Ready Alternate flash Operation Timer Check code Cause of trouble occurrence        Temp. sensor error in indoor unit              Outdoor unit temp. sensor error F01 Heat exchanger sensor (TCJ) error F02 Heat exchanger sensor…

n Others (Except check code)

Lamp indication Operation Timer Cause of trouble occurrence Check code Ready — During test run — COOL/HEAT disagreement (Automatic cooling/heating setup to automatic cooling/heating unavailable model, heating setup to cooling only model) Simultaneous flash Operation Timer Ready Alternate flash 94

9-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit

(7-Segment Display of Interface) <In case of SUPER MODULAR MULTI SYSTEM> Check code Main remote controller Outdoor 7-segment display Check code Auxiliary code E01 — — E02 — E03 Detected position Check item (position) Status Error detection condition Remote controller Communication error between…

Outdoor 7-segment display

remote Auxiliary code controller Check code E15 E15 E16 E16 — 00: Capacity over 01 to: No. of connected units Detected position Check item (position) Check code name Status Error detection condition I/F No corresponding indoor unit during automatic address All stop Indoor unit is not found when…

Detected position Check code name Status Error detection condition Check item (position) 01: IPDU1 error 02: IPDU2 error 03: IPDU1, 2 errors 04: Fan IPDU error 05: IPDU1 + Fan IPDU error 06: IPDU2 + Fan IPDU error 07: All IPDU error or communication error between IPDU and I/F P.C. board or outdoor…

Detected

position Check code name Status Error detection condition I/F Outdoor temp sensor miscabling (TE1, TL) All stop During operation of compressor in HEAT mode, the TE1 detection temp was higher than that of TL by the specified value continued for 3 minutes or more. • Check installation of TE1 sensor…

Outdoor 7-segment display

Detected position Status Main remote controller Check code Auxiliary code H04 H04 — I/F Compressor 1 case thermo operation All stop Compressor 1 case thermostat performed protective operation. • Check compressor 1 case thermo circuit. (Connector, cable, P.C. board) • Check full opening of service…

remote

controller Outdoor 7-segment display Check code Auxiliary code H14 H14 — H16 H16 01: TK1 oil circuit system error 02: TK2 oil circuit system error 03: TK3 oil circuit system error 04: TK4 oil circuit system error Detected position Status Error detection condition I/F Compressor 2 case thermo…

remote

controller Check code Auxiliary code L05 — — L06 L06 L07 — L08 Detected position 101 Check code name Status I/F Duplicated indoor units with priority (Displayed on indoor unit with priority) All stop Indoor units with priority were duplicated. • Check display of indoor unit with priority. I/F…

Outdoor 7-segment display

Detected position Status Error detection condition Main remote controller Check code Auxiliary code P01 — — Indoor P03 P03 — 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…

remote

controller Check code Auxiliary code P13 P13 — Outdoor 7-segment display Detected position I/F Check code name Status Error detection condition Outdoor liquid back detection error All stop <In cooling> While the system operated in cooling mode, high ststus of high pressure value was detected in the…

remote

controller Outdoor 7-segment display Check code Auxiliary code P22 P22 08: Out of step 0A: IDC operation 0E: Synchronous error 0F: Braking error 06: Max. rpm over 04: rpm difference error 0D: Lock 0C: Fan lock Check code name Status Error detection condition IPDU Outdoor fan IPDU error All stop…

Error detected by TCC-LINK central control device

Check code Display on central control device Check code Outdoor 7-segment display C05 — C06 — C12 — P30 Differs according to error contents of the with alarm (L20 is displayed.) Detected position Check code name Status Error detection condition Check item (position) TCC-LINK TCC-LINK central control…

9-5. Sensor Characteristics

10. DETACHMENTS

No. Part name 1 Suction grille Remarks Procedure XCAUTIONX Suction grille Knobs of the suction grille hook Be sure to put on the gloves and long-sleeved shirt at disassembling work; otherwise an injury will be caused by a part, etc. 1. Detachment 1) Stop operation of the air conditioner and then…

Electric parts cover (Continued) 3 Adjust corner cap Remarks Procedure 1. Detachment Adjust corner cap 1) Pull knob of the adjust corner cap to the arrow direction, remove strap of the adjust corner cap from pin of the panel and then remove all the 4 corners of the cap. NOTE : The knob is provided…

Ceiling panel Remarks Procedure 1. Detachment 1) Carry out works of item 1 of 2 and item 1 of 3 . 2) Remove the flap connector (CN510, White, 20P) connected to the control P.C. board and then remove the lead wire from the clamp. NOTE : Unlock the lock of the housing part and then remove the…

Control P.C. board Remarks Procedure 1. Detachment 1) Carry out work of item 1 of 2 . 2) Remove connectors which are connected from the control P.C. board to the other parts and then remove wiring from the clamp. CN510 : Louver motor (20P, White) CN34 : Float switch (3P, Red) CN504 : Drain pump (2P…

Drain cap Remarks Procedure 1. Detachment Drain cap (outside) 1) Carry out work of item 1 of 1 . 2) Loosen screws (3 positions) fixing the drain cap (outside) and then turn the drain cap to the arrow mark direction to remove it. NOTE : The drain cap is hung down because a strap is attached to it…

Fan motor Remarks Procedure 1. Detachment 1) Carry out work of item 1 of 2 . 2) Remove connectors which are connected from the control P.C. board to the other parts and then remove each wiring from the clamp. CN510 : Louver motor (20P, White) CN34 : Float switch (3P, Red) CN504 : Drain pump (2P…

Fan motor (Continued) Remarks Procedure 2. Attachment 2) Fix the fan motor lead, TC sensor and TCJ sensor with the clamp of the bell mouth. 3) Mount the electric parts box with the fixing screws A and B. (Ø4 × 10, 3 pcs. Ø4 × 8, 1 pc.) 4) Connect the connector removed in item 1 as before and then…

Drain pump Remarks Procedure 1. Detachment 1) Carry out works of item 1 of 2 and item 1 of 6 . 2) Remove the drain pump connector (CN504, White, 2P) connected to the control P.C. board and then remove the lead wire from the clamp. 3) Remove the fixing screws and then remove the drain pump. (Ø4 × 10…

Float switch assembly Remarks Procedure 1. Detachment 1) Carry out works of item 1 of 7 and works from 1) to 5). 2) Remove the fixing screw and then remove the float switch assembly. (Ø4 × 25, 1 pc.) Float switch switch assembly assemb 2. Attachment 1) Mount the float switch assembly as before with…

PMV motor Remarks Procedure 1. Detachment 1) Carry out work of item 1 of 10 . 2) Remove the relay connector of PMV motor. 3) Peel the butyl rubber adhered to the main unit of the pulse motor valve (PMV) until PMV can be seen and then loosen the nuts fixing PMV motor with double spanner to remove PMV…

Heat exchanger Remarks Procedure 1. Detachment 1) Recover the refrigerant gas. 2) Carry out work of item 1 of 10 . 3) Remove refrigerant pipe at indoor unit side. 4) Remove the fixing screws and then remove the piping cover. (Ø4 ×10, 3 pcs.) 5) Remove the drain hose from the drain pump and remove…

11. P.C. BOARD EXCHANGE PROCEDURES

11-1. Exchange of P.C. Board for Indoor Service Part code Models P.C. board 431-6V-379 MMU-AP ✻✻✻ 2H series MCC-1570 CAUTION <Model Name: MMU-AP ✻✻✻ 2H> For the above models, set the CODE No. to “+- ” and the setting data 0000 (initial) to “0001” <Note: when replacing the P.C. board for indoor unit…

[1] Setting data read out from EEPROM

The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out. Step 1 Step 2 Step 3 SET CL TEST Push , and buttons on the remote controller simultaneously for more than 4 seconds. ∗ When the group operation control is performed, the unit No. displayed…

[3] Wiring the setting data to EEPROM

The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. Step 1 SET CL <Fig. 1 RBC-AMT32E> TEST Push , and buttons on the remote controller simultaneously for more than 4 seconds. 1 ∗ In the group control operation, the unit No. displayed for the…

Step 6

Step 7 Step 8 Step 9 Check the setting data displayed at this time with the setting data down in [1] (on page 122). / buttons for the timer setting to 1. If the setting data is different, modify the setting data by pushing the data put down in [1]. The operation completes if the setting data is…

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

DN Item Filter sign lighting time Filter pollution leve Central control address 06 Heating suction temperature shift 0d 0F 1E 28 2A 31 32 5d 60 F0 F1 F2 F3 F4 Setting data Existence of automatic COOL/HEAT mode Cooling only Type Indoor unit capacity System address Indoor unit address Group address…

12. EXPLODED VIEWS AND PARTS LIST

Location

No. Parts No. Description 43120248 43166011 43166012 43122110 43172206 43172207 4314J405 4314J406 4314J407 43146707 43146713 43146714 43166004 43166005 43166006 43170244 43179144 43119499 43079249 43163057 43163058 43089147 43047685 43049776 43149351 43047688 43149352 43149353 43149354 43139137…

Location

No. Parts No. Description 43120247 43120248 43166011 43166012 43122110 43172206 43172208 4314J407 4314J408 43146707 43146723 43146714 43166004 43166005 43166006 43170244 43179144 43119499 43079249 43163057 43163058 43089147 43049776 43149352 43149354 43139137 43122117 43197197 43139165 43197199…

308, 306, 307, 323, 310, Location No. Parts No. Description 43409207 43480017 4302D003 43407145 43407146 43409212 43409216 43401037 43401041 43401043 43401047 43407148 43407149 43407150 43407154 43403010 43403011 43403012 43407155 43407156 43460125 43400077 43109423 43109424 Grille, Air Inlet Air…

356, 357 Model Name Location No. Parts No. 353 43459011 354 Description RBC-AX31U (W)-E RBC-AX31U (WS)-E P.C. Board Ass’y, Remote Receiver 1 1 43462010 Cover, WRS, ABS 43461006 Sheet, PC 43108018 Cover, Panel, WRS 1 357 43108019 Cover, Panel, WRS 358 43460126 Lead

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Инструкция на Мультизональные VRF системы Toshiba (сервис-мануалы)

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