innovair EV10C2DB6 Service Manual Download Page 40

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9. Troubleshooting

9.1 Indoor unit error display

For 9k,12k,18k

Display

Operation lamp flash times Timer lamp

Failure

EEPROM error

Zero crossing detection error

Indoor fan speed has been out of control

Default

Indoor room temperature sensor T1 open circuit

or short circuit

Evaporator coil temperature sensor T2 open

circuit or short circuit

Refrigerant leak detection error

light

off

flash

For 21k,24k

Display

Operation lamp

flash times

Timer lamp

Failure

EEPROM error

Zero crossing 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

Condenser coil temperature sensor T3 open circuit or short

circuit.

Refrigerant leak detection error

Indoor unit and outdoor unit communication error

light

off

flash

Summary of Contents for EV10C2DB6

Page 1: ...SERVICE MANUAL EV10C2DB6 H10C2MR63 EV13C2DB6 H13C2MR63 EV18C2DB6 H18C2MR63 EV24C2DB6 H24C2MR63 AIR CONDITIONER ...

Page 2: ... 6 3 Pipe length and the elevation 18 6 4 Installation for the first time 19 6 5 Adding the refrigerant after running the system for many years 22 6 6 Re installation while the indoor unit need to be repaired 23 6 7 Re installation while the outdoor unit need to be repaired 25 7 Operation characteristics 28 8 Electronic function 29 8 1 Abbreviation 29 8 2 Display function 29 8 3 Main Protection 30...

Page 3: ...ble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of fir...

Page 4: ...during operation 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 There is risk of fire or electric shock Do not place a heater or other appliance near the power cable There is ...

Page 5: ...tion that water could not enter the product There is risk of fire electric shock or product damage Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock When the product is not be used for a long time disconnect the power supply plug...

Page 6: ... preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts ...

Page 7: ...nes of the same type Do not mix old and mew batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries ...

Page 8: ...6 2 Function Model Names of Indoor Outdoor Units Series Capacity Indoor units Outdoor units 9k EV10C2DB6 H10C2MR63 12k EV13C2DB6 H13C2MR63 18k EV18C2DB6 H18C2MR63 On Off 24k EV24C2DB6 H24C2MR63 ...

Page 9: ...ilter O Killer Of Formaldehyde Compressor Crankcase Heater O Golden Fin O Self Clean O Louver Position Memory Function Refrigerant Leakage Detect Self diag Function Hydrophilic Aluminum Fin Anti rust Cabinet Valve Protection Cover PTC Heating Belt O Follow Me O O optional function ...

Page 10: ... D W H L R H Model R mm L mm H mm Dimension of installation hole mm EV10C2DB6 92 170 45 EV13C2DB6 95 170 45 EV18C2DB6 80 100 45 65 Model W D H EV10C2DB6 680 178 255 EV13C2DB6 770 188 255 EV18C2DB6 905 198 275 EV24C2DB6 1030 218 315 ...

Page 11: ...9 Model R mm L mm H mm Dimension of installation hole mm EV24C2DB6 163 293 45 65 H L R ...

Page 12: ...than 60cm More than 70cm More than 30cm More than 60cm Service space Fence or obstacles Model W H D W1 A B H10C2MR63 685 260 430 742 460 276 H13C2MR63 700 240 540 757 458 250 H18C2MR63 780 250 540 843 549 276 H24C2MR63 820 330 595 870 523 340 ...

Page 13: ...11 4 Refrigerant Cycle Diagram For cooling only models INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR CAPILIARY TUBE ...

Page 14: ...NDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE CHECK VALVE Heating Model only CAPILIARY TUBE REVERSING VALVE Heating Model only COOLING HEATING ACCUMULATOR ...

Page 15: ...13 5 Wiring Diagram 5 1 Indoor Units EV10C2DB6 EV13C2DB6 EV18C2DB6 ...

Page 16: ...14 EV24C2DB6 ...

Page 17: ...15 5 2 Outdoor Units H10C2MR63 H13C2MR63 H18C2MR63 ...

Page 18: ...16 H24C2MR63 ...

Page 19: ...onnecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm 3 and 6 0 75 6 and 10 1 0 10 and 16 1 5 16 and 25 2 5 The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit Please refe...

Page 20: ...onal refrigerant g m EV10C2DB6 H10C2MR63 3 8 9 52 1 4 6 35 5 5 10 30 EV13C2DB6 H13C2MR63 5 5 10 30 EV18C2DB6 H18C2MR63 1 2 12 7 1 4 6 35 5 8 15 30 EV24C2DB6 H124C2MR63 5 8 15 9 3 8 9 52 5 10 20 60 Caution The capacity test is based on standard length and maximum allowance length is based on the system reliability The oil trap should be installed per 5 7 meters ...

Page 21: ...ft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with 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 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charg...

Page 22: ... indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 Air purging by 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 ...

Page 23: ...erant if the pipe length 5m 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 Purge the air from the charge hose Open the valve at the bottom of the cy...

Page 24: ...onnect 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 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the li...

Page 25: ...le 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 2 Connect the charge hose with the push pin of handle lo to the 3 way valv...

Page 26: ...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 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 for 3 ...

Page 27: ...o tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system 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 indic...

Page 28: ...ale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the proced...

Page 29: ...27 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage ...

Page 30: ...e 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 Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 Optimum performance will be achieved within this operating temperature ...

Page 31: ... 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 Defrost Indicator only for heat pump models This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode Temperature indicator Displays the temperature settings when the ...

Page 32: ...nit stops and LED displays failure information and can t returns to normal operation automatically 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 8 4 2 Cooling Mode 8 4 2 1 Compre...

Page 33: ...on in cooling mode defrosting mode and the current protection 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 The auto fan 8 4 2 4 Evaporator low temperature T2 protection When the evaporator coil temp T2 keeps lower than TE5 for 5 minutes the compressor and outdoor fan will shut off When T2 is higher than TE6 ...

Page 34: ...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 8 4 3 3 Indoor fan running rules When the compressor is on the indoor fan can be set to high med low auto And the anti cold...

Page 35: ...the indoor fan medium speed T T 5 if the indoor fan high speed 1 2 AC meets A1 or A2 A1 The cumulative compressor running time is between 45 120 minutes Meanwhile the value of T meets the below table T High speed THDEFROST Medium speed TMDEFROST Low speed TLDEFROST A2 The cumulative compressor running time is over 120 minutes Meanwhile the value of T meets the below table T High speed THDEFROST 2 ...

Page 36: ...C will enter the defrosting mode if all of the following items are satisfied 3 1 AC has no defrost before 3 2 The cumulative compressor running time is over 45 minutes 3 3 The indoor fan has been run at low speed over 2 minutes 3 4 The 1 2 and 1 3 are satisfied In this case the defrosting time is ten minutes Condition of ending defrosting If any one of the following items is satisfied the defrosti...

Page 37: ...ll choose cooling heating or fan only mode according to T T T1 Ts T T1 Ts Running mode T 2 Cooling 3 T 2 Fan only T 3 Heating for cooling only models they will run at fan only mode AC will run in auto mode in the below cases 1 Press the forced auto button 2 If AC is off it will run in auto mode when timer on function is active 3 After setting the mode AC will run in auto mode if the compressor kee...

Page 38: ...als such as switch on switch off timer on timer off mode setting fan speed setting sleeping mode setting follow me setting it will quit the forced operation The forced operation function cannot be memorized if power off 8 4 7 Timer function 8 4 7 1 Timing range is 24 hours 8 4 7 2 Timer on The machine will turn on automatically when reaching the setting time 8 4 7 3 Timer off The machine will turn...

Page 39: ...stop until reaches the setting time in sleep mode 8 4 9 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 w...

Page 40: ...rt circuit EC 2 O Refrigerant leak detection error O light X off flash For 21k 24k Display Operation lamp flash times Timer lamp Failure E1 1 X EEPROM error E2 2 X Zero crossing detection error E3 3 X Indoor fan speed has been out of control E5 5 X Indoor room temperature sensor T1 open circuit or short circuit E6 6 X Evaporator coil temperature sensor T2 open circuit or short circuit E7 7 X Conde...

Page 41: ...39 9 2 Diagnosis and Solution 9 2 1 Indoor fan speed out of control diagnosis and solution ...

Page 42: ...40 9 2 2 Open or short circuit of temperature sensor diagnosis and solution 9 2 3 EEPROM parameter error diagnosis and solution 9 2 4 Zero crossing detection error diagnosis and solution ...

Page 43: ...41 9 2 5 Indoor outdoor unit s communication error diagnosis and solution ...

Page 44: ...42 9 2 6 Refrigerant leakage detection diagnosis and solution 0 1 ...

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