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9.2 Diagnosis and Solution

9.2.1 Indoor fan speed has been out of control diagnosis and solution

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Содержание Oasis WOE10C2DB1 / HOE10C2MR83

Страница 1: ...RSSA A 1211 SERVICE MANUAL WOE10C2DB8 HOE10C2MR83 WOE13C2DB8 HOE13C2MR83 WOE18C2DB8 HOE18C2MR83 WOE24C2DB8 HOE24C2MR83 AIR CONDITIONER ...

Страница 2: ...6 3 Pipe length and the elevation 16 6 4 Installation for the first time 18 6 5 Adding the refrigerant after running the system for many years 21 6 6 Re installation while the indoor unit need to be repaired 22 6 7 Re installation while the outdoor unit need to be repaired 24 7 Operation characteristics 26 8 Electronic function 27 8 1 Abbreviation 27 8 2 Display function 27 8 3 Main Protection 28 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 8: ...2MR83 18k WOE18C2DB8 HOE18C2MR83 On Off 24k WOE24C2DB8 HOE24C2MR83 Filter Ionizer O Silver Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Killer of Formaldehyde Compressor Crankcase Heater O Self Clean O Self diag function Anti rust cabinet Valve protection cover PTC Heating Belt O Follow me O O optional function ...

Страница 9: ...7 3 Dimension 3 1 Indoor Units L R H Model R mm L mm H mm Dimension of installation hole mm WOE10C2DB8 111 5 100 45 WOE13C2DB8 83 5 100 45 WOE18C2DB8 139 100 45 WOE24C2DB8 207 150 45 65 ...

Страница 10: ...8 Model W H D WOE10C2DB8 710 250 189 WOE13C2DB8 790 275 196 WOE18C2DB8 930 275 198 WOE24C2DB8 1036 315 230 ...

Страница 11: ...tdoor Units More than 30cm More than 60cm More than 70cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B HOE18C2MR83 780 250 540 843 549 276 HOE24C2MR83 820 330 595 870 523 340 ...

Страница 12: ...10 4 Refrigerant Cycle Diagram Cooling only models INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR CAPILIARY TUBE ...

Страница 13: ...DOOR 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 ...

Страница 14: ...12 5 Wiring Diagram 5 1 Indoor Units WOE10C2DB8 WOE13C2DB8 WOE18C2DB8 WOE24C2DB8 ...

Страница 15: ...13 5 2 Outdoor Units HOE10C2MR83 HOE13C2MR83 HOE18C2MR83 ...

Страница 16: ...14 HOE24C2MR83 ...

Страница 17: ...4700 479kgf cm 6 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 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 ...

Страница 18: ...22 More than 5m Use vacuum pump Pipe length 5 x30g m 24k R22 More than 5m Use vacuum pump Pipe length 5 x60g m 9k 12k 18k 22k R410a More than 5m Use vacuum pump Pipe length 5 x20g m 24k R410a More than 5m Use vacuum pump Pipe length 5 x40g m Model Standard length m Max Elevation B m Max Length A m 7k 9k 12k 16k 17k R22 5 5 10 18k R22 5 8 15 24k R22 5 10 20 9k 12k R410a 5 8 20 18k 21k 22k 24k R410a...

Страница 19: ...17 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 ...

Страница 20: ... the indoor unit connections or outdoor unit connections by a soft 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 ha...

Страница 21: ...hen tighten the flare nut again Make sure the pressure display in the pressure 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 Co...

Страница 22: ... 18N m Be sure to check the gas leakage 3 Adding the refrigerant 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 ...

Страница 23: ...as leakage 6 5 Adding the refrigerant after running the system for many years 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 2 Purge the air from the charge hose Open the valve at the bottom of the...

Страница 24: ...e of 18N m Be sure to check for gas leakage 6 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 2 Conne...

Страница 25: ...check for gas leakage 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 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the...

Страница 26: ...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 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...

Страница 27: ...ge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale 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...

Страница 28: ...3 21000Btu h models 5 43 For the models with low temperature cooling system 18 43 21000Btu h models Outdoor temperature 21 52 For special tropical models 7 24 21 52 For special tropical models CAUTION 1 If air conditioner is used beyond the above conditions the certain protections may action 2 Room relative humidity should be less than 80 If the air conditioner operates in excess of this value the...

Страница 29: ...1 Icon explanation on indoor display board Auto indicator This indicator illuminates when the air conditioner is in AUTO operation PRE DEF Indicator for heat pump models only This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode OPERATION indicator This indicator illuminates when the air conditioner is ...

Страница 30: ...rent exceeds I5min for 5 minute the compressor and outdoor fan will shut off C zone The current exceeds IFAN the outdoor fan will shut off if AC is in heating mode If AC is in cooling mode the indoor fan will run at low speed While 8 3 4 Zero crossing detection error protection Only for 9k 12k 16k 17k If AC can not detect zero crossing signal for 4 minutes or the zero crossing signal time interval...

Страница 31: ...o 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 For 21k 24k models 8 4 2 Cooling Mode 8 4 2 1 Four way valve control The four way valve is closed 8 4 2 2 Compressor and outdoor fan control The action of the compressor and the outdoor fan are submitted to the following rule 29 28 25 High Medium Low T1 28 27 24 High Medium Low T1 ...

Страница 32: ...igh medium low and auto As high medium low auto and turbo for 24k models Auto fan in cooling mode acts as follow 8 4 2 4 Outdoor fan speed control MSR1 21CR NB6W MSR1 24HR NB6W MSR1 24CR NB6W models Outdoor fan and compressor start up at the same time outdoor fan stop 30s delay after the compressor stopped The outdoor fan has two speeds it s controlled by T3 as following rules Low High TD TC T3 5 ...

Страница 33: ... 4 3 Dehumidifying mode For 7k 9k 12k 16k 17k 18k 22k models 8 4 3 1 Indoor fan speed is depended on compressor compressor starts indoor fan in low speed compressor stops indoor fan in breeze speed 8 4 3 2 The action of outdoor fan and compressor are the same is according to the room temperature and set temperature NO Temperature Compressor and outdoor fan actions Indoor fan actions ON 6min Low sp...

Страница 34: ...ow the below rules When indoor room temp T1 is higher than Tj the compressor and outdoor fan will shut off When T1 is lower than Tk the compressor and outdoor fan will start up Tj T1 Off On Tk Tj Ts Tc Tk Ts Tc 1 Tj Ts Tc Tk Ts Tc 2 for MSR1 22HRN1 NB8W model 8 4 4 3 Indoor fan running rules Indoor fan speed can be selected in high medium low and auto 8 4 4 3 1 Indoor fan running rule in anti cold...

Страница 35: ...he anti cold wind function is controlled by the evaporator temperature refer the principle to the following chart For 24k model TE4 TE2 Breeze Setting fan speed Indoor fan stop TE1 TE3 T2 TE2 TE1 TE4 Setting fan speed Breeze Fan stop T2 TE3 ...

Страница 36: ...22k models 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 A and B are satisfied 2 0 Low Medium T1 Ts TE7 Compressor and Outdoor fan on T2 TE9 TE8 Outdoor fan off Compressor off ...

Страница 37: ... is breezing or stopped start defrosting Calculate from the end of latest defrost evaporator high temp Protection only closes outdoor fan with the compressor still running add up to 90 minutes 2 Condition of ending defrosting If any one of the following items is satisfied the defrosting will terminate and the machine will turn to normal heating mode 1 The defrosting time is reached to the setting ...

Страница 38: ...nd T2 T1 TMDEFROST start defrosting Low TLDEFROST If indoor fan is in low speed and T2 T1 TLDEFROST start defrosting Breeze or stop If indoor fan is breezing or stopped start defrosting Condition 2 If the accumulated time of outdoor fan stopped but the compressor keep working due to evaporator high temperature protection mode reaches 90 min from the end of last defrosting mode Condition of defrost...

Страница 39: ...eeps running for 45 minutes or more B1 The compressor keeps running for 45 120 minutes and the temperature difference of evaporator and room temperature meets one of the following B2 The compressor keeps running for 120 minutes or more and the temperature difference of evaporator and room temperature meets one of the following If the accumulated time of outdoor fan stopped but the compressor keep ...

Страница 40: ...inutes After three times continuous condition defrost the fourth defrost time should be DT1 5 minutes The air conditioner can t run on defrosting mode until the compressor has run for no less than 6 5 minutes 8 4 3 4 3 Ending condition of defrosting If one of following conditions is satisfied end the defrost and turn into heating mode A The defrost time has ended B The compressor current has reach...

Страница 41: ...ing items is satisfied the defrosting will terminate and the machine will turn to normal heating mode 1 T3 rises to be higher than TC2 2 The machine has run for 10 minutes in defrosting 3 Defrosting action 8 4 5 Auto mode This mode can be chosen by remote controller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode accord...

Страница 42: ...d the indoor fan runs at low speed After running for 30 minutes AC will turn to drying mode AC will turn to auto mode for 21k 22k 24k models with 24 setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 setting temperature When AC receives signals such as switch on switch off timer on timer off mode setting fan Speeds setting sleeping mode sett...

Страница 43: ...ing temperature rises 1 be lower than 30 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed When heating the setting temperature decreases 1 be higher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind function has the priority 8 4 8 3 Timer setting is available 8 4 8 4 Wh...

Страница 44: ... 12HRN1 NB8 models Display LED STATUS E1 EEPROM error E2 Zero crossing detection error E3 Indoor fan speed has been out of control E4 Over current protection of the compressor occurs 4 times E5 Open circuit or short circuit of indoor room temperature sensor E6 Evaporator temperature sensor open circuit or short circuit For 21k 24k ELBR KFR70G N1Y R1R15 B8 W models Operatio n lamp Timer lamp Defros...

Страница 45: ...8 2T0032800278 MSR1 18CR NB6 models Display Failure E1 EEPROM error E5 The T1 sensor is open circuit or short circuit E6 The T2 sensor is open circuit or short circuit For MSR1 22HRN1 NB8W model Operation lamp Timer lamp Failure EEPROM error x Indoor room temp sensor is open circuit or short circuit x Evaporator temp sensor is open circuit or short circuit X off flash ...

Страница 46: ...44 9 2 Diagnosis and Solution 9 2 1 Indoor fan speed has been out of control diagnosis and solution ...

Страница 47: ...ease 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 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB must has problems and need to be replaced ...

Страница 48: ...46 9 2 2 Open circuit or short circuit of temperature sensor diagnosis and solution ...

Страница 49: ...47 9 2 3 Over current protection occurs 4 times diagnosis and solution ...

Страница 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 ...

Страница 51: ...49 9 2 6 Indoor outdoor units communication error diagnosis and solution ...

Страница 52: ...or Compressor discharge temp T5 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 5 10 15 20 25 30 40 50 60 Resistance Value K 26 9 20 7 16 1 12 6 10 8 5 2 3 5 2 4 Table 2 Some frequently used R T data for T5 sensor Temperature 5 15 25 35 60 70 80 90 100 Resistance Value K 141 6 88 56 1 36 6 13 ...

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