Vivax ACP-09CH25AERO Service Manual
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Vivax ACP-09CH25AERO Service Manual

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ACP-09CH25AERO ACP-18CH50AERO
ACP-12CH35AERO ACP-24CH70AERO
ACP-12CH35AEXO
EN
Service manual 2016

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Summary of Contents for Vivax ACP-09CH25AERO

  • Page 1 ACP-09CH25AERO ACP-18CH50AERO ACP-12CH35AERO ACP-24CH70AERO ACP-12CH35AEXO Service manual 2016...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Function ................................ 5 3. Dimension ..............................6 3.1 Indoor Units ........................... 6 3.2 Outdoor Units ..........................8 4. Refrigerant Cycle Diagram ......................... 9 5. Installation details ............................. 10 5.1 Wrench torque sheet for installation ...................

  • Page 3: Precaution

    1. Precaution 1.1 Safety Precaution To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. Before service unit, be sure to read this service manual at first. 1.2 Warning Installation Do not use a defective or underrated circuit breaker.
  • Page 4 There is risk of fire or electric shock. Do not place anything on the power cable. There is risk of fire or electric shock. Do not plug or unplug the power supply plug during operation. There is risk of fire or electric shock. Do not touch (operation) the product with wet hands.
  • Page 5 Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage. Keep level even when installing the product. It can avoid vibration of water leakage. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.
  • Page 6 water. Do not use the remote of the batteries have leaked. The chemical in batteries could cause burns or other health hazards...

  • Page 7: Function

    2. Function Model Names of Indoor/Outdoor Units Series Capacity Indoor units Outdoor units On-Off ACP-09CH25AERO/I ACP-09CH25AERO/O ACP-12CH35AERO/I ACP-12CH35AERO/O ACP-12CH35AEXO/I ACP-12CH35AEXO/O ACP-18CH50AERO/I ACP-18CH50AERO/O ACP-24CH70AERO/I ACP-24CH70AERO/O...

  • Page 8: Dimension

    3. Dimension 3.1 Indoor Units Model ACP-09CH25AERO/I ACP-12CH35AERO/I ACP-12CH35AEXO/I ACP-18CH50AERO/I ACP-24CH70AERO/I 1030...
  • Page 9 Dimension of Model L(mm) R(mm) H(mm) installation hole(mm) ACP-09CH25AERO/I ACP-12CH35AERO/I ACP-12CH35AEXO/I ACP-18CH50AERO/I Dimension of installation Model L(mm) R(mm) H(mm) hole(mm) ACP-24CH70AERO/I...

  • Page 10: Outdoor Units

    3.2 Outdoor Units More than 30cm More than 60cm (Service space More than 30cm More than 60cm More than 200cm Model ACP-09CH25AERO/O ACP-12CH35AERO/O ACP-12CH35AEXO/O ACP-18CH50AERO/O ACP-24CH70AERO/O...

  • Page 11: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram For heat pump models: INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR...

  • Page 12: Installation Details

    5. Installation details 5.1 Wrench torque sheet for installation Additional Outside diameter Torque tightening torque inch 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) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Nominal cross-sectional area (mm²) Rated current of appliance >3 and ≤6...

  • Page 13: Pipe Length And The Elevation

    5.3 Pipe length and the elevation The pipe length and refrigerant amount: Pipe size Standard Max. Max. Additiona Model length Elevation Length Liquid 3/8’’ 1/4’’ ACP-09CH25AERO/I+ ACP-09CH25AERO/O (Ф9.52) (Ф6.35) ACP-12CH35AERO/I + ACP-12CH35AERO/O 1/4’’ 1/2’’ (Ф12.7) (Ф6.35) ACP-12CH35AEXO/I ACP-12CH35AEXO/O 1/4’’ 1/2’’ ACP-18CH50AERO/I ACP-18CH50AERO/O (Ф12.7)

  • Page 14: Installation For The First Time

    5.4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below: Pressure in the system rises. Operating current rises. Cooling or heating efficiency drops. Moisture in the refrigerant circuit may freeze and block capillary tubing. Water may lead to corrosion of parts in the refrigerant system.
  • Page 15 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. 2. Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port.. 3.
  • Page 16 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 17 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. If the refrigerant is R410A, make the cylinder bottom up to ensure the liquid charge. 2).

  • Page 18: Adding The Refrigerant After Running The System For Many Years

    5.5 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 19: Re-Installation While The Indoor Unit Need To Be Repaired

    5.6 Re-installation while the indoor unit need to be repaired 1. Collecting the refrigerant into the outdoor unit 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.
  • Page 20 2. Air purging by the refrigerant 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 21: Re-Installation While The Outdoor Unit Need To Be Repaired

    7). Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m. Be sure to check the gas leakage. 5.7 Re-installation while the outdoor unit need to be repaired 1.
  • Page 22 2. Refrigerant charging 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 23 Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage...

  • Page 24: Operation Characteristics

    6. Operation characteristics CAUTION: 1. If air conditioner is used outside of the above conditions, certain safety protection features may come into operation and cause the unit to function abnormally. 2. Room relative humidity less than 80%. If the air conditioner operates in excess of this figure, the surface of the air conditioner may attract condensation.

  • Page 25: Electronic Function

    7. Electronic function 7.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger 7.2 Display function 7.2.1 Icon explanation on indoor display board. One of the following figures matches its display board. Run indicator Flash at 0.5Hz when the unit is standby. Illuminate when the unit is turned on Timer indicator This indicator illuminates when TIMER is set ON/OFF.

  • Page 26: Main Protection

    7.3 Main Protection 7.3.1 Time Delay at restart for compressor. 7.3.2 Sensor protection at open circuit and breaking disconnection. 7.3.3 Zero crossing detection error protection If AC can not detect zero crossing signals for 4 minutes or the zero crossing signal time intervals is not correct, the unit will stop and the LED will display the failure.

  • Page 27: Operation Modes And Functions

    7.4 Operation Modes and Functions 7.4.1 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 28 cooling mode, defrosting mode and the current protection. 7.4.2.3 Indoor fan running rules In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto. The auto fan: T1-Ts High Medium 7.4.2.4 Evaporator low temperature T2 protection.
  • Page 29 7.4.3.2 Outdoor fan running rules: The outdoor units have single fan speed. The outdoor fan will run following the compressor except when AC is in evaporator high temp. protection in heating mode , condenser high temp. protection in cooling mode ,defrosting mode and the current protection. 7.4.3.3 Indoor fan running rules: Auto fan action: T1-TS...
  • Page 30 7.4.3.5 High evaporator coil temp.T2 protection: Compressor off Outdoor motor off Compressor and outdoor fan on MS11D-07HRN1-QC2(2T0032100278), Compressor off Outdoor fan motor off Compressor and outdoor fan motor off Compressor and outdoor fan motor on 7.4.4 Auto-mode The machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts). T1-Ts Cooling Fan only...
  • Page 31 7.4.5 Drying mode 7.4.5.1 The compressor is cycled running by 10 minutes on and then 5 minutes off. The indoor fan will keep running at low speed. 7.4.5.2 In drying mode, if the room temperature is lower than 10 , the indoor fan will run at breeze while the compressor and outdoor fan will stop and not resume until room temperature exceeds 13 .

  • Page 32: Troubleshooting

    8. Troubleshooting 8.1 Indoor unit error display For 9k, 11k, 18k Display Operation lamp flash times Timer lamp Failure EEPROM error Zero crossing signal detection error Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short circuit Evaporator coil temperature sensor T2 open circuit or short circuit...

  • Page 33: Diagnosis And Solution

    8.2 Diagnosis and Solution 8.2.1 EEPROM parameter error diagnosis and solution Power off, then restart the unit 2 minutes later. Replace the indoor/outdoor main PCB. EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. 8.2.2 Zero crossing detection error diagnosis and solution Power off, then restart the unit 2 minutes later...
  • Page 34 8.2.3 Indoor fan speed has been out of control diagnosis and solution Power off, then restart the The unit operates normally. unit 2 minutes later Shut off the power supply, Find out the cause and have Rotate the fan by hand. it solved Check the wiring of fan Correct the connections.
  • Page 35 Index 1: 1.Indoor AC Fan Motor Measure the resistance value of each winding by using the tester. Index2: 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.
  • Page 36 8.2.4 Open circuit or short circuit of temperature sensor diagnosis and solution Check the connection between temperature Correct the connection sensor and PCB. Measure the resistance Repalce the sensor value of the sensor Replace indoor or outdoor main PCB...
  • Page 37 8.2.5 Indoor / outdoor unit’s communication error diagnosis and solution Power off, then restart the unit 2 minutes later ower off f f , then restart the unit 2 minutes later Measure Vs, is it positive fluctuation? easure Vs, is it positive fluctuation? (Vs is the voltage between S and N of (Vs is the voltage between S and N of outdoor unit.
  • Page 38 8.2.6 Refrigerant leakage detection diagnosis and solution Power off, then restart the unit 2 minutes later. Check cool air blowing out Check if T2 sensor from indoor air outlet Replace indoor PCB. Check leakage of system Repair the leakage and recharge the refrigerant.
  • Page 39 Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) Connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on outdoor PCB.
  • Page 40 Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(TP) sensor. Measure the resistance value of each winding by using the multi-meter. Table 1: Some frequently-used R-T data for T1,T2,T3 and T4 sensor: Temperature ( ) Resistance Value (KΩ) 26.9...

This manual is also suitable for:

Acp-12ch35aeroAcp-18ch50aeroAcp-24ch70aeroAcp-12ch35aexo

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