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innovair WOE10C2DB8 Service Manual

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RSSA-A-1211

SERVICE MANUAL

WOE10C2DB8,HOE10C2MR83
WOE13C2DB8,HOE13C2MR83
WOE18C2DB8,HOE18C2MR83
WOE24C2DB8,HOE24C2MR83
AIR CONDITIONER

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Summary of Contents for innovair WOE10C2DB8

  • Page 1: Service Manual

    RSSA-A-1211 SERVICE MANUAL WOE10C2DB8,HOE10C2MR83 WOE13C2DB8,HOE13C2MR83 WOE18C2DB8,HOE18C2MR83 WOE24C2DB8,HOE24C2MR83 AIR CONDITIONER...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution.......................... 1 1.2 Warning ............................1 2. Function................................ 6 3. Dimension ..............................7 3.1 Indoor Units........................... 7 3.2 Outdoor Units ..........................9 4. Refrigerant Cycle Diagram ........................10 5. Wiring Diagram ............................12 5.1 Indoor Units..........................

  • 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 condenser and evaporator. For installation, always contact the dealer or an Authorized service center. There is risk of fire, electric shock, explosion, or injury. Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product. Be sure the installation area does not deteriorate with age.
  • Page 5 There is risk of explosion or fire. If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire. Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
  • Page 6 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. It may cause a problem for your neighbors. Use two or more people to lift and transport the product. Avoid personal injury.
  • Page 7 operated. There are sharp and moving parts that could cause personal injury. Do not drink the water drained from the product. It is not sanitary could cause serious health issues. Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.

  • Page 8: Function

    2. Function Model Names of Indoor/Outdoor Units Series Capacity Indoor units Outdoor units WOE10C2DB8 HOE10C2MR83 WOE13C2DB8 HOE13C2MR83 On-Off WOE18C2DB8 HOE18C2MR83 WOE24C2DB8 HOE24C2MR83 Filter Killer of Formaldehyde Ionizer(O) Silver Ico Filter(O) Follow me(O) Vitamin C Filter(O) Self-diag. function 3M HAM Filter(O)

  • Page 9: Dimension

    3. Dimension 3.1 Indoor Units Model R(mm) L(mm) H(mm) Dimension of installation hole(mm) WOE10C2DB8 111.5 83.5 WOE13C2DB8 WOE18C2DB8 WOE24C2DB8...
  • Page 10 Model WOE10C2DB8 WOE13C2DB8 WOE18C2DB8 WOE24C2DB8 1036...

  • Page 11: Outdoor Units

    3.2 Outdoor Units More than 30cm More than 60cm (Service space More than 30cm More than 60cm More than 70cm Model HOE18C2MR83 HOE24C2MR83...

  • Page 12: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram Cooling only models: INDOOR OUTDOOR LIQUID SIDE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE COMPRESSOR...
  • Page 13 Heating pump modes ¡ ¡ ¡ ¡ INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) GAS SIDE REVERSING VALVE 3-WAY VALVE (Heating Model only) ACCUMULATOR COOLING COMPRESSOR HEATING...

  • Page 14: Wiring Diagram

    5. Wiring Diagram 5.1 Indoor Units WOE10C2DB8, WOE13C2DB8, WOE18C2DB8 WOE24C2DB8,...

  • Page 15: Outdoor Units

    5.2 Outdoor Units HOE10C2MR83, HOE13C2MR83, HOE18C2MR83...
  • Page 16 HOE24C2MR83...

  • Page 17: Installation Details

    6. Installation details 6.1 Wrench torque sheet for installation Additional Outside diameter Torque tightening torque inch N.cm N.cm 1500 1600 6.35 (153kgf.cm) (163kgf.cm) 2500 2600 9.52 (255kgf.cm) (265kgf.cm) 3500 3600 12.7 (357kgf.cm) (367kgf.cm) 4500 4700 15.9 (459kgf.cm) (479kgf.cm) 6.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet.

  • Page 18: Pipe Length And The Elevation

    6.3 Pipe length and the elevation The pipe length and refrigerant amount: Connective pipe Additional amount of Model Air purging length refrigerant Use vacuum Less than 5m ------------------ pump Use vacuum 7k,9k,12k,16k,17k,18k(R22) More than 5m (Pipe length-5)x30g/m pump Use vacuum 24k(R22) More than 5m (Pipe length-5)x60g/m...
  • Page 19 Caution: The capacity test is based on the standard length and the maximum permissive length is based on the system reliability. The oil trap should be installed per 5-7 meters.

  • Page 20: Installation For The First Time

    6.4 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. ¢...
  • Page 21 5) Operate the vacuum pump to evacuate. 6) Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can’t achieve -0.1Mpa after pumping 50 minutes, please check if there are some leakage points.
  • Page 22 5). Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position.

  • Page 23: Adding The Refrigerant After Running The System For Many Years

    5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant. 6).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose.

  • Page 24: Re-Installation While The Indoor Unit Need To Be Repaired

    5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant. 6).When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low side), disconnect the charge hose from the 3-way valve’s service port immediately and turn off the air conditioner before disconnecting the hose.
  • Page 25 4). Set the 2-way valve to the close position. 5). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa. 6). Set the 3-way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. Disconnect the charge set, and tighten the 2-way and 3-way valve’s stem nuts.

  • Page 26: Re-Installation While The Outdoor Unit Need To Be Repaired

    5). Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2-way valve approximately 45’ until the gauge indicates 0.3 to 0.5 Mpa. 6). Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open position.
  • Page 27 needle does not move (approximately 5 minutes after turning off the vacuum pump). 5). Disconnect the charge hose from the vacuum pump. 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 28: Operation Characteristics

    conditioner before disconnecting the hose. 6). Mounted the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage. 7. Operation characteristics Temperature Heating Cooling operation Drying operation...

  • Page 29: Electronic Function

    8. Electronic function 8.1 Abbreviation T1: Indoor ambient temperature T2: Coil temperature of indoor heat exchanger T3: Coil temperature of outdoor heat exchanger T4: Outdoor ambient temperature T5: Compressor discharge temperature Ts: Set temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. Auto indicator: This indicator illuminates when the air conditioner is in AUTO operation.

  • Page 30: Main Protection

    8.3 Main Protection 8.3.1 Time Delay at restart for compressor. 8.3.2 Fan Speed is out of control. (Only for 7k,9k, 12k,16k, 17k, ----When Indoor Fan Speed keeps too low or too high for certain time, the unit will stop and the LED will display the failure 8.3.3 Current protection I3SEC...

  • Page 31: Operation Modes And Functions

    8.4 Operation Modes and Functions 8.4.1 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: For 7k, 9k, 12k, 16k,17k,18k,22k models: ¦...
  • Page 32 For MSR1-18CRN1-NB8(2T0032800278), MSR1-18CR-NB6, MSR1-22HRN1-NB8W:Tm=Ts, Tn=Ts-2 For other models, Tm=Ts+1, Tn=Ts 8.4.2.3 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. (As high, medium, low, auto and turbo for 24k models) Auto fan in cooling mode acts as follow: ¦...
  • Page 33 8.4.2.5 Evaporator low temperature T2 protection. Anti-freezing control to indoor evaporator at cooling mode When T2<TE5 continuous for 5 minutes, the compressor and outdoor fan will stop and restart until T2>TE6 (for 7k, 9k, 12k, 16k,17k,18k,22k models) When T2<TE5 continuous for 4 minutes, the compressor and outdoor fan will stop and restart until T2>TE6 (for 21k,24k models) 8.4.2.6 Condenser high temperature T3 protection.
  • Page 34 For 21k, 24k models: 8.4.3.4 The indoor fan will keep running at low speed. 8.4.3.5 The outdoor fan, compressor and all the protections are the same with cooling mode. 8.4.4 Heating Mode 8.4.4.1 Four-way valve control The four-way valve is open except in defrosting mode. 8.4.4.2 Compressor and outdoor fan running rules Once the compressor starts up, it will follow the below rules: When indoor room temp.T1 is higher than Tj, the compressor and outdoor fan will shut off.
  • Page 35 Low (Breeze) TE14+2 Fan off TE14 The anti-cold wind function is controlled by the evaporator temperature, refer the principle to the following chart: ¦ Setting fan speed Breeze Fan stop For 24k model: Setting fan speed Breeze Indoor fan stop...
  • Page 36 8.4.4.4 Auto fan action in heating mode. ¦ T1-Ts Medium 8.4.4.5 High evaporator coil temp.T2 protection: For 7k,9k, 12k, 16k,17k,18k,22k models: © Compressor off Outdoor fan off Compressor and Outdoor fan on For 21k,24k models: 8.4.4.6 Defrosting mode For 7k,9k, 12k, 16k,17k,18k models(except MSR1-09HRN1-NB8 and MSR1-12HRN1-NB8): 1) Defrosting condition: Defrosting starts when either of the following &...
  • Page 37 A: The compressor keeps running for 40 minutes or more. B: The temperature difference of evaporator and room temperature meets one of the following © T2-T1 Note Fan speed High If indoor fan is in high speed and T2-T1< TH , start defrosting ¨...
  • Page 38 For MSR1-09HRN1-NB8 and MSR1-12HRN1-NB8: Condition of defrosting: If any one of following items is satisfied, defrosting will start. Condition 1: Both the following conditions are satisfied: A: If the working time of the compressor accumulates to 42 min and one continuous working time is more than 330s.
  • Page 39 Defrosting actions ¡ ¡ ¡ ¡ During the defrosting mode, if the machine stopped or transferred to other mode, the defrosting mode will stop, and all the defrosting conditions will be cleared. For MSR1-22HRN1-NB8W model: Defrosting starts when either of the following &...
  • Page 40 8.4.3.4.2 Defrosting time condition runtime minute Defrosting time minute Case 1 runtime 60 Case 2 runtime 80 DT1+1 ¨ Case 3 runtime 95 DT1+2 ¨ Case 4 runtime 110 DT1+3 ¨ Case 5 runtime 120 DT1+4 ¨ Case 6 DT1+5 Case 7 DT1+5 At condition...
  • Page 41 For 21k,24k models: 1) Defrosting condition: AC will enter defrosting mode if any of the following items is satisfied. (1) When T3 TC1 , if the compressor keeps running over 40 minutes and T3 for 3 ¨ © ¨ © minutes.
  • Page 42 For other models: T1-Ts Running mode T1-Ts 2 Cooling ¦ T1-Ts +2 Fan-only ¦ " ! ¦ T1-Ts -1 Heating (For cooling only model, it will run at Fan-only mode) ¦ Indoor fan will run at auto fan of the relevant mode. The louver operates same as in relevant mode.
  • Page 43 then turn off automatically when reaching the setting “off” time. 8.4.7.5 Timer off/on. The machine will turn off automatically when reaching the setting “off” time, and then turn on automatically when reaching the setting “on” time. 8.4.7.6 For 7k, 9k, 12k, 16k, 17k,18k,22k models the timer function will not change the AC current operation mode.

  • Page 44: Troubleshooting

    9. Troubleshooting 9.1 Indoor unit error display For 7k,9k, 12k, 16k, 17k,18k models: Operation lamp Timer lamp Failure Indoor fan speed has been out of control The T1 or T2 sensor is open circuit or short circuit Over current protection occurs 4 times.(except MSR1-07HR-NB4(A), MSR1-09HR-NB4(A), MSR1-12CR-NB4 2T0032500152) EEPROM error...
  • Page 45 The T3 sensor is open circuit or short circuit(except 24K) EEPROM error Indoor / outdoor units communication error light flash For MSR1-18CRN1-NB8(2T0032800278), MSR1-18CR-NB6 models: Display Failure EEPROM error The T1 sensor is open circuit or short circuit The T2 sensor is open circuit or short circuit For MSR1-22HRN1-NB8W model: Operation lamp Timer lamp...

  • Page 46: Diagnosis And Solution

    9.2 Diagnosis and Solution 9.2.1 Indoor fan speed has been out of control diagnosis and solution...
  • Page 47 Index 1: 1.Indoor AC Fan Motor Measure the resistance value of each winding by using the tester. For the definite value of the fan motor, please contact with the technical engineer. 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 48 9.2.2 Open circuit or short circuit of temperature sensor diagnosis and solution...
  • Page 49 9.2.3 Over current protection occurs 4 times diagnosis and solution...
  • Page 50 9.2.4 EEPROM parameter error diagnosis and solution EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. 9.2.5 Zero crossing detection error diagnosis and solution...
  • Page 51 9.2.6 Indoor / outdoor units communication error diagnosis and solution...
  • Page 52 Main parts check 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.

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