Vivax ACP-18COFM50AECI Service Manual
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Vivax ACP-18COFM50AECI Service Manual

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ACP-36COFM105AECI
ACP-41COFM123AECI
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Summary of Contents for Vivax ACP-18COFM50AECI

  • Page 1 ACP-18COFM50AECI ACP-27COFM79AECI ACP-28COFM82AECI ACP-36COFM105AECI ACP-41COFM123AECI Service manual...

  • Page 3: Table Of Contents

      CONTENTS 1. General information of Outdoor Units ........... 3   2. Features .................... 4   3. Dimensions ..................5   4. Wiring Diagram ................12   5. Refrigeration Cycle Diagram ............16   6. Indoor units combination ............. 19  ...

  • Page 4: General Information Of Outdoor Units

    General information of Outdoor Units Model name Dimension (mm) Compressor ACP-18COFM50AECI 845x320x700 DA150S1C-20FZ ACP-27COFM79AECI 900x315x860 DA250S2C-30MT ACP-28COFM82AECI 900x315x860 DA250S2C-30MT ACP-36COFM105AECI 990x345x965 TNB306FPGMC-L ACP-41COFM123AECI 990x345x965 MNB36FAAMC-L...

  • Page 5: Features

      Features Outdoor unit Power relay control Low noise air flow system Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode. 4 way valve control It is only operated in the heating operation mode except defrosting operation. Anti-rust cabinet Valve protection cover It protects the valves and prevents water from dripping.

  • Page 6: Dimensions

    Dimensions ACP-18COFM50AECI 200.7 D1 335 560 W1 D2 360 845 W...
  • Page 7 ACP-27COFM79AECI 238.4 D1 333 590 W1 900 W D2 355...
  • Page 8 ACP-28COFM82AECI 238.4 D1 333 590 W1 900 W D2 355...
  • Page 9 ACP-36COFM105AECI, ACP-41COFM123AECI D1 366 624 W1 D2 397 990 W W2 81 B1 145...

  • Page 10: Wiring Diagram

    Wiring Diagram ACP-18COFM50AECI...
  • Page 11 ACP-27COFM79AECI ACP-28COFM82AECI...
  • Page 12 ACP-36COFM105AECI ACP-41COFM123AECI...

  • Page 13: Refrigeration Cycle Diagram

      Refrigeration Cycle Diagram 5.1 Refrigeration circuit drawing of inverter 1 drive 2 type INDOOR OUTDOOR EXV A CAPILIARY A LIQUID VALVE A CHECK VALVE EXV B CAPILIARY B LIQUID VALVE B Condenser temp. sensor CAPILIARY TUBE HEAT HEAT EXCHANGE T4 Ambient T1 Room EXCHANGE...
  • Page 14 5.3 Refrigeration circuit drawing of inverter 1 drive 4 type EXV A CAPILIARY A LIQUID VALVE A EXV B CAPILIARY B LIQUID VALVE B CHECK VALVE EXV C CAPILIARY C LIQUID VALVE C Condenser temp. sensor EXV D CAPILIARY D CAPILIARY TUBE LIQUID VALVE D HEAT...
  • Page 15 5.5 Refrigeration circuit drawing of ACP-41COFM123AECI EXV A CAPILIARY A LIQUID VALVE A EXV B CAPILIARY B LIQUID VALVE B EXV C CAPILIARY C CHECK VALVE LIQUID VALVE C EXV D CAPILIARY D LIQUID VALVE D Condenser temp. sensor CAPILIARY TUBE EXV E CAPILIARY E LIQUID VALVE E HEAT...

  • Page 16: Indoor Units Combination

    Indoor units combination Indoor unit combination for ACP-18COFM50AECI One unit Two unit 9+12 7+12 9+18 7+18 12+12 Indoor unit combination for ACP-27COFM79AECI One unit Two unit Three unit 12+18 7+7+7 7+9+9 7+12+18 9+12+12 9+12 18+18 7+7+9 7+9+12 9+9+9 9+12+18 7+12...
  • Page 17 Indoor unit combination for ACP-28COFM82AECI One unit Two unit Three unit Four unit 12+18 7+7+7 7+9+9 9+9+9 7+7+7+7 7+7+9+9 7+9+9+12 9+12 18+18 7+7+9 7+9+12 9+9+12 7+7+7+9 7+7+9+12 7+9+12+12 7+12 9+18 7+7+12 7+9+18 9+9+18 7+7+7+12 7+7+12+12 9+9+9+9 7+18 12+12 7+7+18 7+12+12 9+12+12 7+7+7+18 7+9+9+9...
  • Page 18 Indoor unit combination for ACP-41COFM123AECI One Unit Two Unit Three Unit 7+7+7 7+9+24 9+9+24 12+18+18 9+12 7+7+9 7+12+12 9+12+12 18+18+18 7+12 9+18 7+7+12 7+12+18 9+12+18 7+18 9+24 7+7+18 7+12+24 9+12+24 7+24 12+12 7+7+24 7+18+18 9+18+18 12+18 7+9+9 9+9+9 12+12+12 12+24 7+9+12 9+9+12 12+12+18...

  • Page 19: Sound Levels

    Sound Levels Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit ACP-18COFM50AECI ACP-27COFM79AECI ACP-28COFM82AECI ACP-36COFM105AECI ACP-41COFM123AECI...

  • Page 20: Installation Details

      Installation Details 8.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) 8.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²) >3 and ≤6...
  • Page 21   ● Refrigerant pipe diameter is different according to indoor unit to be connected. When using the extension pipe, refer to the tables below. ● When refrigerant pipe diameter is different from that of outdoor unit union (for 18K indoor unit), additional transfer connector needs to be used on outdoor unit union.
  • Page 22   (Indoor unit) (Outdoor unit) (Liquid side) Two-way valve Close (Gas side) Three-way valve Close Manifold valve Compound meter Pressure gauge -0.1MPa Handle Lo Handle Hi Charge hose Charge hose Vacuum pump Vacuum pump 1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way valves are set to the closed position.
  • Page 23   Procedure: 1). Confirm that both the 2-way and 3-way valves are set to the closed position. 2). Connect the charge set and a charging cylinder to the service port of the 3-way valve. 3). Air purging. Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on the 2-way valve approximately 45’...
  • Page 24   Electronic scale Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.
  • Page 25   8.5 Adding the refrigerant after running the system for many years Electronic scale Procedure: 1). Connect the charge hose to the 3-way service port, open the 2-way valve and the 3-way valve. Connect the charge hose to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge.
  • Page 26   Procedure 1). Confirm that both the 2-way and 3-way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position. Be sure to use a hexagonal wrench to operate the valve stems. 2).
  • Page 27   Procedure: 1). Confirm that both the 2-way and 3-way valves are set to the closed position. 2). Connect the charge set and a charging cylinder to the service port of the 3-way valve Leave the valve on the charging cylinder closed. 3).
  • Page 28   Procedure: 1). Confirm that both the 2-way and 3-way valves are set to the opened position. 2). Connect the vacuum pump to 3-way valve’s service port. 3). Evacuation for approximately one hour. Confirm that the compound meter indicates -0.1Mpa. 4).
  • Page 29   2. Refrigerant charging Procedure: 1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.
  • Page 30 .There are one low-pressure centralized valve and one high-pressure centralized ACP-41COFM123AECI valve, it will be more time saving when vacumm and recycle refrigerant. But refer to the previous instruction when vacumm and recycle refrigerant.

  • Page 31: Electronic Control Function

      Electronic control function 9.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger middle. T2B: Coil temperature of indoor heat exchanger outlet. T3: Coil temperature of outdoor heat exchanger T4: Outdoor ambient temperature T5: Compressor discharge temperature Ts: Setting temperature 9.2 Electric control working environment.
  • Page 32   9.4 Outdoor unit point check function There is a check switch in outdoor PCB. Press the switch N times it will display the content corresponding to No. N. After getting into the check function, it will display No. N with 1.5s, meanwhile the low bit decimal of digit display flashing, indicated to get into the check function display.
  • Page 33   AD value of voltage For example ,the digital display tube show “Cd”, it means AD value is 205. EXV open angle for A indoor unit Actual data/4. EXV open angle for B indoor unit If the value is higher than 99, the digital display tube will show single EXV open angle for C indoor unit digit and tens digit.
  • Page 34   Capacity area Norm value (N) Heating mode T1 Ts Capacity area Norm value (N) 9.4.4 Number of indoor unit Display Number of indoor unit 9.4.5 Opening degree of electronic expansion valve: Actual opening degree equals the display data times 4  ...
  • Page 35   9.5 Protection 9.5.1 Three minutes delay at restart for compressor. 9.5.2 Temperature protection of compressor discharge. When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules: ----If 102℃<T5<115 , decrease the frequency to the lower level every 2 minutes till to F1.
  • Page 36   3 minutes. HEAT_F15 IHEATLMT11 HEAT_F14 IHEATLMT10 After that, the frequency will be adjusted according to the capacity demand and rise to the upper level every 3 minutes HEAT_F13 IHEATLMT9 (When the frequency>Heat_F4 via capacity demand). HEAT_F12 IHEATLMT8 HEAT_F11 IHEATLMT7 HEAT_F10 IHEATLMT6 HEAT_F9...

  • Page 37: Troubleshooting

      10. Troubleshooting Indoor unit error code explanation: 10.1 PREMIER series +OASIS series+9A series +R series +12F series +Aurora series: Display Operation lamp flash times Timer lamp Failure Indoor EEPROM malfunction Indoor / outdoor units communication error Indoor fan speed has been out of control Open or short circuit of T1 temperature sensor Open or short circuit of T2 temperature sensor Open or short circuit of T4 temperature sensor...
  • Page 38   For Console Malfunction Running lamp Timer lamp Defrosting lamp Open or short circuit of T1 temperature sensor ☆ Open or short circuit of T2 temperature sensor ☆ Communication malfunction between indoor and outdoor ☆ units. Outdoor fan speed has been out of control ☆...
  • Page 39   Outdoor unit error code explanation: 10.2 Display LED STATUS Outdoor EEPROM malfunction Indoor / outdoor units communication error Communication malfunction between IPM board and outdoor main board Open or short circuit of outdoor unit temperature sensor Voltage protection Outdoor fan speed has been out of control No A Indoor unit coil outlet temperature sensor or connector of sensor is defective No B Indoor unit coil outlet temperature sensor or connector of sensor is defective No C Indoor unit coil outlet temperature sensor or connector of sensor is defective...
  • Page 40   10.3 Trouble shooting 10.3.1 For the indoor unit 10.3.1.1 Indoor EEPROM malfunction EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.  ...
  • Page 41   10.3.1.2 Indoor / outdoor units communication error  ...
  • Page 42 Pic 1: check the voltage of N to S (Vs), is it moving alternately between positive value and negative value? Pic 2:IPM or outdoor main PCB (For ACP-18COFM50AECI ACP-28COFM82AECI/tri-zone) Operating Self-Check Pic 2: IPM or outdoor main PCB (For ACP-36COFM105AECI...
  • Page 43   PIC3 :Main board LED when power on and unit standby. PIC 4: check point button, Press 1 time for check how many indoor units are connected  ...
  • Page 44   10.3.1.3 indoor unit fan speed has been out of control Index 1: 1: Indoor AC fan motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V power supply), the PCB must have problems and need to be replaced.
  • Page 45   For console: DC motor voltage input and output For split type: Color Signal Voltage Vs/Vm 280V~380V Black White 14-17.5V Yellow 0~5.6V Blue 14-17.5V For other types: Color Signal Voltage Vs/Vm 192V~380V Black White 13.5-16.5V Yellow 0~6.5V Blue 13.5-16.5V  ...
  • Page 46   10.3.1.4 Open or short circuit of temperature sensor. Check the connections  between temperature  Correct the connections. sensor and PCB. Are the  connections good? Measure the resistance value  of the sensor via Appendix 1 Is it normal? Replace the sensor. Replace the indoor PCB  10.3.1.6 Full-water malfunction  ...
  • Page 47   10.3.2 For the outdoor unit 10.3.2 1 Outdoor EEPROM malfunction(ODU E0) EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.  ...
  • Page 48   10.3.2.2 Communication malfunction between IPM board and outdoor main board(ODU E3)  ...
  • Page 49   10.3.2.3 Voltage protection(ODU E5) Voltage protection Check the voltage of outdoor unit power supply, whether the voltage Check the power supply between L(L1) and N (L2) is about 220~240VAC Check whether the voltage of IPM board P and N is normal? DC277-356V for 18-27KBtu/h;...
  • Page 50   10.3.2.4 Outdoor unit fan speed has been out of control (E8) Index 1: 1. Outdoor DC fan motor(control chip is inside fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector.
  • Page 51 10.3.2.5 High pressure protection (ODU P1) (For ACP-36COFM105AECI, ACP-28COFM82AECI ACP-41COFM123AECI)
  • Page 52 10.3.2.6 Low pressure protection (ODU P2) (For ACP-36COFM105AECI, ACP-28COFM82AECI ACP-36COFM105AECI, ACP-41COFM123AECI) Low pressure protection Whether the wiring between the low pressure protector and main control Connect it well board is connected well or correctly Whether the low pressure protector is broken Method: Disconnect the plug.
  • Page 53 10.3.2.7 Current protection of compressor(ODU P3) Model ACP-18COFM50AECI ACP-27COFM79AECI ACP-28COFM82AEC ACP-36COFM105AECI ACP-41COFM123AECI prote ction 18.5A curre...
  • Page 54   10.3.2.8 Temperature protection of compressor discharge(ODU P4) Temperature protection of  compressor discharge Check whether the  Check whether the  compressor discharge temp. is  Stop leaking and add refrigerant refrigerant is leak more than 115°C ? Check whether connection is right between compressor discharge temp. Correct the wiring connection sensor and PCB according to wiring diagrams? Measure the resistance value compressor discharge temp.
  • Page 55   10.3.2.9 High temperature protection of condenser(ODU P5) When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temp. less than 52°C. Check the connection  between temperature  Correct the connection High temperature protection of  sensor and PCB. condenser Check whether the condenser temperature is Check whether the Higher than 65°C...
  • Page 56   10.3.2.10 IPM module protection(ODU P6) IPM module protection Check whether the voltage range  Check whether the input  Regulate it to correct, then  of P-N on IPM module is normal?  power supply is correct?  check whether the system  DC277-356V for 18-27KBtu/h;  208-230V, 1N, 60Hz can work normally? DC277-410V for 36-42KBtu/h Check whether the connecting  line between main board and  Connect it tightly,  Check whether the  the IPM module is connected  check ok or not? Connect it correctly  power supply line is  tightly and tightly, check ok  connected correctly and  or not? tightly Check whether the connecting  Connect it well, check  line of the compressor is  ok or not? Check whether the lines  connected correctly or tightly Connect it tightly,  in E-part box are  check ok or not? connected tightly Replace the IPM module, ...
  • Page 57   10.4 Main parts check Spec. Indoor unit Model 7K 11M 9K 11M 12K 11M 18K 11M Indoor fan motor WZDK20-38G WZDK20-38G WZDK20-38G WZDK58-38G Model 9K 11P 12K 11P 18K 11P Indoor fan motor WZDK20-38G WZDK20-38G WZDK20-38G Model 7K 9A 9K 9A 12K 9A 18K(RC8) 9A...
  • Page 58   1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.  ...
  • Page 59   Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4,T2B (℃--K) ℃ ℃ ℃ ℃ K Ohm  K Ohm K Ohm K Ohm  115.266 12.6431 2.35774 0.62973 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...
  • Page 60   Appendix 2 Temperature Sensor Resistance Value Table for T5 (℃--K) ℃ K Ohm  ℃ K Ohm  ℃ K Ohm  ℃ K Ohm  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...
  • Page 61   2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value DA130M1C-31FZ DA150S1C-20FZ DA250S2C-30MT TNB306FPGMC-L ASN108D22UEZ MNB36FAAMC-L Blue - 1.77Ω(20℃) 0.95Ω(20℃) 0.55Ω(20℃) 0.53Ω(20℃) 1.57Ω(20℃) 0.44Ω(20℃)  ...
  • Page 62   3. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 64 www.VIVAX.com...

This manual is also suitable for:

Acp-41cofm123aeciAcp-27cofm79aeciAcp-28cofm82aeciAcp-36cofm105aeci

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