Toyotomi CCT 50HINVi Service Manual
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Toyotomi CCT 50HINVi Service Manual

Toyotomi CCT 50HINVi Service Manual

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MODEL:
CCT 50HINVi/o
CCT 70HINVi/o
CCT 100HINVi/o

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Summary of Contents for Toyotomi CCT 50HINVi

  • Page 1 MODEL: CCT 50HINVi/o CCT 70HINVi/o CCT 100HINVi/o...
  • Page 2 Contents Part 1 General Information ....................1 Part 2 Indoor Units Part 3 Outdoor Units Part 5 Electrical Control System The specifications, designs, and information in this book are subject to change without notice for product improvement. Contents...
  • Page 3 General Information Part 1 General Information 1. Model Lists ....................2 2. External Appearance ................. 3 2.1 Indoor Units ......................3 2.2 Outdoor Units ......................3 4. Features ...................... General Information...

  • Page 4: Model Lists

    Cooling and heating New Four-way cassette Cooling and heating (compact) 1.2 Outdoor Units Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units CCT 50HINVi CCT 50HINVo Rotary GMCC DCT 50HINVi CFT 50HINVi CCT 70HINVi DCT 70HINVi CCT 70HINVo...

  • Page 5: External Appearance

    External Appearance 2. External Appearance 2.1 Indoor Units Super slim cassette Duct Ceiling-Floor Compact Four-way cassette 2.2 Outdoor Units Single fan outdoor unit Double fan outdoor unit General Information...
  • Page 6 Features Features 4.1. To meet Europe A level, actual EER/COP of new product with BLDC motors of indoor & outdoor unit and DC compressor will be higher than 3.4. 4.2. Low ambient kit is standard for outdoor units 4.3. Network control function is standard for the indoor units. 4.4.

  • Page 7: Indoor Units

    Indoor Units Part 2 Indoor Units Super Slim Cassette Type ............ 7 Indoor Units...

  • Page 8: Table Of Contents

    Super Slim Cassette Type Super Slim Cassette Type 1. Features ................8 2. Dimensions ................ 12 3. Service Space ..............13 4. Wiring Diagrams..............14 5. Electric Characteristics ............ 15 6. Sound Levels ..............16 7. Accessories ............... 17 8. The Specification of Power ..........18 9.

  • Page 9: Features

    Features 1. Features 1.1 Overview Compact design, super slim body size, less space requiring in installation Each louver can be separately controlled, more comfort air blowing is possible. Auto-lifting panel design, more convenient to clean and maintain the filter.(optional) Old Cassette New slim cassette Volume change 18K-24K...
  • Page 10 Features New air-intake 1.3 Optional ionizer generator Ionizer generator is optional to get refreshing air to your room. Ionizer can be switched on or off by remote controller. When pressing the Clean Air button on the remote controller, Ionizer will work and the indicator light on display board will shine.
  • Page 11 Features 1.4 External air duct design Reserve external air duct, more flexible for the air supply. 1.5 Built-in draining pump Due to the improvement of structure, more convenient to repair or replace the draining pump. Draining Pump Built-in draining pump to make sure condensed water drain out reliably. Indoor Units...
  • Page 12 Features Terminals for alarm lamp and long-distance on-off controller connection are standard Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human control. Alarm lamp Long-distance on-off controller 1.7 Optional touch-screen wired controller Touch screen wired controller is optional, with error code indication function. Better man-machine conversation interface.

  • Page 13: Dimensions

    Dimensions 2. Dimensions Model >235 >235 >275 Indoor Units...

  • Page 14: Service Space

    Service Space 3. Service Space >1000mm >1000mm Indoor Units...

  • Page 15: Wiring Diagrams

    Wiring Diagrams 4. Wiring Diagrams CCT 50HINVi, CCT 70HINVi, CCT 100HINVi. Indoor Units...

  • Page 16: Electric Characteristics

    Electric Characteristics Electric Characteristics Power Indoor Unit Supply Model Voltage CCT50HINVi 220-240 CCT70HINVi 220-240 CC100HINVi 220-240 Notes: MFA: Max. Fuse Amps. (A) Indoor Units...

  • Page 17: Sound Levels

    Sound Levels Sound Levels Microphone Noise level dB(A) Model Noise Power dB(A) CCT 50HINVi CCT70HINVi CCT100HINVi Indoor Units...

  • Page 18: Accessories

    Accessories Accessories Name Shape Quantity Installation paper board INSTALLATION FITTINGS Bolt M5 Tubing & Fittings Soundproof / insulation sheath Out-let pipe Out-let pipe sheath Drainpipe Fittings Out-let pipe clasp Remote controller & Its Frame Remote controller holder Remote controller & Its Frame Mounting screw(ST2.9×10-C-H) Remote controller manual...

  • Page 19: The Specification Of Power

    The Specification of Power 8. The Specification of Power Model 18000-24000Btu/h 36000 Btu/h Phase 1-phase 1-phase Frequency and Voltage 220-240V, 50Hz 220-240V, 50Hz INDOOR UNIT POWER POWER WIRING (mm 3×1.0 3×1.0 CIRCUIT BREAKER (A) Phase 1-phase 3-phase 380-420V, 50Hz Frequency and Voltage 220-240V, 50Hz OUTDOOR UNIT POWER 5×2.5...

  • Page 20: Field Wiring

    Field Wiring 9. Field Wiring Indoor Units...

  • Page 21: Outdoor Units

    Outdoor Units Part 3 Outdoor Units 1. Dimensions ....................53 2. Service Space ....................55 3. Piping Diagrams ..................56 4. Wiring Diagrams ..................57 5. Electric Characteristics ................60 6. Operation Limits ..................61 7. Sound Levels ....................62 Outdoor Units...

  • Page 22: Dimensions

    Dimensions 1. Dimensions Unit mm Model CCT 50HINVo CCT 70HINVo CCT 100HINVo Outdoor Units...

  • Page 23: Service Space

    Service Space 2. Service Space (Wall or obstacle) More than 30cm Air inlet More than 60cm More than 30cm Maintain channel Air inlet More than 60cm Air outlet More than 200cm Outdoor Units...

  • Page 24: Piping Diagrams

    Piping Diagrams 3. Piping Diagrams CCT 50HINVo CCT 70HINVo INDOOR OUTDOOR Electronic CAPILIARY TUBE expansion valve LIQUID SIDE 2-WAY VALVE T3 Condenser temp. sensor HEAT EXCHANGE HEAT (EVAPORATOR) T4 Ambient T1 Room temp. EXCHANGE temp. sensor sensor (CONDENSER) T2 Evaporator temp.

  • Page 25: Wiring Diagrams

    Wiring Diagrams 4. Wiring Diagrams CCT 50HINVo, CCT 70HINVo Outdoor Units...
  • Page 26 Wiring Diagrams CCT 100HINVo Outdoor Units...

  • Page 27: Electric Characteristics

    Electric Characteristics 5. Electric Characteristics Outdoor Unit Model Voltage Min. Max. CCT50HINVo 220-240V 198V 254V CCT70HINVo 220-240V 198V 254V CCT100HINVo 380-415V 342V 440V Outdoor Units...

  • Page 28: Operation Limits

    Operation Limits 6. Operation Limits Temperature Cooling operation Heating operation Mode Room temperature Outdoor temperature CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally. 2.

  • Page 29: Sound Levels

    Sound Levels 7. Sound Levels Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit Model Sound Power dB(A) CCT 50HINVo CCT 70HINVo CCT 100HINVo Outdoor Units...

  • Page 30: Test Operation

    Test operation 11. Test operation 11.1 The test operation must be carried out after the entire installation has been completed. 11.2 Please confirm the following points before the test operation. The indoor unit and outdoor unit are installed properly. Tubing and wiring are correctly completed. The refrigerant pipe system is leakage-checked.

  • Page 31: Part

    Electrical Control System LFIS-B-1211 Part 5 Electrical Control System 1. Electrical Control Function ........95 2. Troubleshooting ............104 3. Controller ..............133 Electrical Control System...
  • Page 32 Electrical Control Function 1. Electrical Control Function 1.1 Definition T1: Indoor room temperature T2: Coil temperature of indoor heat exchanger middle. T2B: Coil temperature of indoor heat exchanger outlet. T3: Coil temperature of condenser T4: Outdoor ambient temperature T5: Compressor discharge temperature 1.2 Main Protection 1.2.1 Time delay at restart for compressor.
  • Page 33 Electrical Control Function 1.3 Operation Modes and Functions 1.3.1 Fan mode ( 1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/(med)/low/auto. (4) The louver operates same as in cooling mode. (5) Auto fan: High Medium...
  • Page 34 Electrical Control Function High Medium 1.3.2.4 Evaporator low temperature T2 protection. When T2<2 and lasts for 3 minutes, the indoor has no capacity demand and resume till T2 7 . 1.3.2.5 Condenser high temperature T3 protection When T3 65 for 3 seconds, the compressor will shut off. When T3 52,the compressor will restart. 1.3.3 Heating Mode 1.3.2.1 Outdoor PMW open angle control The unit is working in heating mode with the EXV open 300P for 3 minutes, then adjusting PMW open angle...
  • Page 35 Electrical Control Function T1-Ts- T Medium High Anti-cold Wind Function: Setting fan speed Breeze Fan off 1.3.3.4 Defrosting mode Condition of defrosting: Time conditions: time1 Time conditions(Meet the following conditions) 1.Running in heating mode 2. T4 3 3. Compressor is on 4.
  • Page 36 Electrical Control Function 2. T4<3 3. Compressor is on 4. T3 TempEnterDefrost_ADD Cleared conditions (Meet any one of the following conditions) 1. Compressor is off and T3 TempEnterDefrost_ADD +2 last for 20 minutes 2. Running in cooling mode. 3. Compressor is off for 1 hour. Condition of entry defrosting: time1+ time2 40 minutes, When defrosting is end,time1 and time2 are cleared.
  • Page 37 Electrical Control Function T=T1-Ts Running mode Cooling Fan-only T<2 Heating T<-1 Indoor fan will run at auto fan of the relevant mode. The louver operates same as in relevant mode. If the machine switches mode between heating and cooling, the compressor will keep stopping for 15 minutes and then choose mode according to T1-Ts.
  • Page 38 Electrical Control Function 1.3.8 Auto-Restart function The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In case of a sudden power failure, the module memorizes the setting conditions before the power failure. The unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes when power returns.
  • Page 39 Electrical Control Function 1.3.11 Point Check Function There is a check switch in outdoor PCB. Press the switch SW1 to check the states of unit when the unit is running. Press the switch N times it will display the content corresponding to No. N. After getting into the check function, it will display No.
  • Page 40 Electrical Control Function The display value is between 30~120 degree. If the temp. is lower than 30 degree, the digital display tube will show “30”.If the temp. is higher than 99 degree, the digital display tube will IGBT radiator temp. show single digit and tens digit.

  • Page 41: Troubleshooting

    Troubleshooting 2. Troubleshooting 2.1 Display board 2.1.1 Icon explanation on indoor display board (Super slim cassette). 2.1.2 Icon explanation on indoor display board (A5 Duct) PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type) Alarm indicator Timer indicator Infrared signal receiver Operation lamp Display digital tube...
  • Page 42 Troubleshooting 2.1.5 Icon explanation on indoor display board (Compact cassette). 2.2 Indoor unit malfunction Defrosting Alarm Timer Display(digital Malfunction Running lamp lamp lamp lamp tube) Communication malfunction between indoor and outdoor units. Open or short circuit of T1 temperature sensor Open or short circuit of T2 temperature sensor Open or short circuit of T2B temperature...
  • Page 43 Troubleshooting 2.3 Outdoor unit malfunction Display Malfunction or Protection Outdoor EEPROM malfunction Indoor / outdoor units communication error Communication malfunction between IPM board and outdoor main board Open or short circuit of T3 or T4 temperature sensor Voltage protection of compressor PFC module protection (For MOU-36HFN1-QRC4,MOU-36HFN1-QRC8) Top temperature protection of compressor High pressure protection (For 36k models)
  • Page 44 Troubleshooting 2.4 Solving steps for typical malfunction 2.4.1 For the indoor unit 2.4.1.1 Open or short circuit of temperature sensor Check the connections between temperature Correct the connections. sensor and PCB. Are the connections good? Check the resistance value of the sensor via Appendix 1 Is it normal? Replace indoor or outdoor PCB.
  • Page 45 Troubleshooting 2.4.1.2. Outdoor unit malfunction Electrical Control System...
  • Page 46 Troubleshooting 2.4.1.3. Indoor EEPROM malfunction Shut off the power supply and turn it on 5 seconds later. Is it still displaying the error code? If the EEPROM chip is welded on PCB, replace the PCB directly. Otherwise, Insert the EEPROM well check whether the EEPROM chip plugged in PCB well?
  • Page 47 Troubleshooting 2.4.1.5. Indoor fan Speed has been out of control. (Only for the units used DC motor) DC motor voltage input and output (control chip is inside the motor) DC motor voltage input and output Color Signal Voltage Vs/Vm 192V~380V Black White 13.5-16.5V...
  • Page 48 Troubleshooting Control chip is in main PCB Color Orange Grey White Pink Black Signal Color Blue Yellow Signal 1) Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the fan motor must have problems and need to be replaced.
  • Page 49 Troubleshooting 2.4.2 For the super-slim cassette with up-down panel 2.4.2.1 Communication error between indoor unit and up-down panel 2.4.2.2 Up-down panel is defective Electrical Control System...
  • Page 50 Troubleshooting 2.4.2.3 Up-down panel is not closed Electrical Control System...
  • Page 51 Troubleshooting 2.4.3 For the unit with TWINS function(For the super-slim cassette & A5 duct) 2.4.3.1 Communication failure between master unit and indoor unit Electrical Control System...
  • Page 52 Troubleshooting 2.4.4 For the outdoor unit 2.4.4.1. E0 malfunction Electrical Control System...
  • Page 53 Troubleshooting 2.4.4.2. E2 malfunction E2 display Indoor / outdoor units communication error Power off, then turn on the unit 5 seconds later(reconnect the power wire).Is the error still displaying after several minutes? Check whether there’s any interference. Remove interference. Such as too many lamps, power Increase the capacity of anti- transformers? Or the signal wire interference...
  • Page 54 Troubleshooting 2.4.4.3. E3 malfunction Electrical Control System...
  • Page 55 Troubleshooting 2.4.4.4. E4 malfunction Electrical Control System...
  • Page 56 Troubleshooting 2.4.4.5. E5 malfunction (For single phase units) E5 display Voltage protection Check the voltage of outdoor unit power supply, whether the voltage Check the power supply between L(1) and N is about 220~240VAC Replace the power board, then check whether the system can run normally Check whether the voltage of IPM board P and N is...
  • Page 57 Troubleshooting 2.4.4.6. E5 malfunction (For three phases units) E5 display Voltage protection Check whether the voltage range of P-N on IPM module is normal? DC277-356V for 18K/ Check the power supply 24KBtu/h; DC277-410V for 36KBtu/h Replace the power board, then check whether the system can run normally Check whether the voltage range of P-N on IPM module is...
  • Page 58 Troubleshooting 2.4.4.7. E6 malfunction (Only for MOU-36HFN1-QRC4,MOU-36HFN1-QRC8) Electrical Control System...
  • Page 59 Troubleshooting 2.4.4.8. P0 malfunction P0 display Temperature protection of compressor top Whether compressor Whether the connection is Reconnect and retest. operates? good? Whether refrigerant circulation volume is normal? Whether protector is normal? If Replace the protector. protector is normal,resistance = 0 Charge refrigerant Replace the outdoor main PCB Whether abnormality is the...
  • Page 60 Troubleshooting 2.4.4.9. P1 malfunction (For 36k models) Electrical Control System...
  • Page 61 Troubleshooting 2.4.4.10. P2 malfunction (For 36k models) Electrical Control System...
  • Page 62 Troubleshooting 2.4.4.11. P3 malfunction Electrical Control System...
  • Page 63 Troubleshooting 2.4.4.12. P4 malfunction When compressor discharge temperature is higher than 115°C, the unit will stop, and unit runs again when compressor discharge temperature is lower than 90°C. P4 display Temperature protection of compressor discharge Check whether the Check whether the compressor discharge temp.
  • Page 64 Troubleshooting 2.4.4.13. P5 malfunction When condenser high temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temp. less than 52°C. P5 display High temperature protection of condenser Replace the temperature sensor Check whether the condenser temperature is more than 65°C Check whether the...
  • Page 65 Troubleshooting 2.4.4.14. P6 malfunction (For single phase units) At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Electrical Control System...
  • Page 66 Troubleshooting 2.4.4.15. P6 malfunction (For three phases units) At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: P6 display IPM module protection Check whether the...
  • Page 67 Troubleshooting 2.4.4.16. P7 malfunction P7 display High temperature protection of evaporator Whether the Whether compressor connection is Reconnect and retest operates? good? Check the Check whether the heat resistance value of exchanger is dirty, the air- the sensor via outlet is blocked and the Replace the temperature sensor Appendix 1,Is it indoor fan is running...
  • Page 68 Troubleshooting Appendix 1 Temperature Sensor Resistance Value Table ( --K) K Ohm K Ohm K Ohm K Ohm 12.6431 2.35774 0.62973 115.266 108.146 12.0561 2.27249 0.61148 101.517 11.5000 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736 2.03732 0.56038 84.2190 10.000 1.96532 0.54448 79.3110...
  • Page 69 Troubleshooting Appendix 2 Unit: ---K Discharge temp. sensor table 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7 54.89 11.38 3.203 384.3 52.53 10.99 3.113 363.3 50.28 10.61 3.025 343.6 48.14 10.25...
  • Page 70 Controller 3. Controller 3.1Wireless Remote Controller 3.1.1RG51Q1/BGE General Function for wireless remote controller: Model RG51Q1/BGE Rated voltage 3.0V(2pieces of LR03 7 batteries) Min voltage for sending signal of CPU 2.4V Effective receiving distance 8m~11m Operation condition -5~60 Electrical Control System...
  • Page 71 Controller Buttons and functions 1. Adjust : Decrease the set temp. Keeping pressing will decrease the temp with 1 per 0.5s. 2. Adjust : Increase the set temp. Keeping pressing will increase the temp with 1 per 0.5s. 3. MODE: Once pressing, running mode will be selected in the following sequence: AUTO COOL HEAT...
  • Page 72 Controller 3.1.2 RG51C/E Remote Controller Specifications Model RG51C/E Rated Voltage 3.0V Lowest Voltage of CPU Emitting Signal 2.0V Reaching Distance 8m (when using 3.0 voltage, it can get 11m) Environment Temperature Range Introduction of Function Buttons on the Remote Controller SET TEM PERATURE( C) AU TO COOL...
  • Page 73 Controller controls into faceplate setting state and the LCD shows F2.Press the TEMPUP( ) to control the faceplate up and press the TEMP DOWN( ) to control the faceplate down. Press any button to exit the faceplate setting state, then the LCD back to the normal display. 7.
  • Page 74 Controller 3.2 Wired Remote Controller 3.2.1 KJR-10B Name and functions of buttons on the wire controller 6. NAME AND FUNCTIONS OF BUTTONS ON WIRE CONTROLLER ON / OFF button Mode selection button Fan speed selection Timer on button Adjust button ▲ ECONOMICAL TIMER ON CLOCK...
  • Page 75 Controller Name and function of LCD on the wire controller Mode select button (MODE): Press MODE button to select “COOL”, “DRY” , "HEAT", or "FAN ONLY" mode.(HEAT is invalid for COOL ONLY wire controller.) AUTO COOL HEAT Fan speed button (FAN SPEED) Press FAN SPEED to select fan speed from "AUTO", "LOW","...
  • Page 76 Controller Installation Installation Notice: When the air conditioner needs the constant frequency wire Controller, be sure adding a Wire Joint with 5 terminal named A, B, C, D, E in indoor unit, and fixing a infrared emitter whose anode and cathode connecting with A and B near the receiver in the Indoor Unit Switch Board, then connecting the terminal +5v, GND, Run in the Switch Board to C,D,E respectively.

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