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INSTALLATION INSTRUCTIONS R−410A Ductless Split System Air ...

INSTALLATION INSTRUCTIONS R−410A Ductless Split System Air ...

INSTALLATION INSTRUCTIONS R−410A Ductless Split System: DLF4(A/H), DLC4(A/H) UNIT 18K & 24K, 230 Volts Malfunction System High Pressure protection Error Code Display E1 Indoor Unit Display Indicator Display (LED Flash 0.5s−ON/0.5s−OFF Running LED Cooling LED Heating_ LED Outdoor unit display (LED’s have 3 modes) OFF, ON, Flash D40 /D5 D41 /D6 D42/ D16 D43/ D30 3s off flash 1 times Operation Status Cooling, dehumidifying, compressor, outdoor fan motor stop, indoor fan motor runs. heating: all stop. Malfunction 1. System high press, excess refrigerant. 2. Dirty outdoor heat exchanger 3. Outdoor ambient temp is too high Anti−freezing protection Compressor discharge high temp protection E2 E4 3s off flash 2 times 3s off flash 4 times Cooling, dehumidifying, compressor, outdoor fan motor stop, indoor fan motor runs. Cooling, dehumidifying, compressor, outdoor fan motor stop, indoor fan motor runs. heating: all stop. 1. Indoor unit return blocked 2. Low indoor fan motor speed 3. Evaporator is dirty. Refer to compressor discharge protection temp. AC overload protection E5 3s off flash 5 times Cooling, dehumidifying, compressor, outdoor fan motor stop, indoor fan motor runs. heating; all stop 1. Power supply is unstable, too much variation 2. Power supply voltage low. Indoor/Outdoor communication malfunction Anti−High temp protection Indoor unit fan motor no feedback Jumper connection malfunction protection Indoor ambient temperature sensor malfunction Indoor evaporator sensor open circuit/short circuit Outdoor ambient sensor open circuit/short circuit Outdoor condenser sensor open circuit/short circuit Compressor discharge temp sensor open circuit/short circuit E6 E8 H6 C5 F1 F2 F3 F4 F5 3s off flash 6 times 3s off flash 8 times 3s off flash 11 times 3s off flash 15 times 3s off flash 1 times 3s off flash 2 times 3s off flash 3 times 3s off flash 4 times 3s off flash 5 times Cooling, compressor stop, indoor fan motor runs, Heating:all stop Cooling, compressor stop, indoor fan motor runs Heating:all stop System will stop System will stop Cooling, dehumidifying; indoor fan motor runs, all else stop, heating all stops Cooling, dehumidifying; indoor fan motor runs, all else stop, heating all stops Cooling, dehumidifying; compressor will stop, indoor fan motor runs. Heating all stop Cooling, dehumidifying; compressor will stop, indoor fan motor runs. Heating all stop Cooling, dehumidifying will run for 3 mins, then compressor will stop, indoor fan motor will start, heating will run 3 mins then stop. Refer to service manual Refer to service manual 1. Indoor control board AP1 malfunction 2. Indoor motor M1 malfunction Indoor control board AP1 jump connector not inserted or broken 1. Room temp sensor is not connected to the control board AP1 2. Room temp sensor is damaged 1. Tube temp sensor is not connected to the control board AP1 2. Tube temp sensor is damaged Outdoor temp sensor not connected or damaged, check sensor resistance value Outdoor temp sensor not connected or damaged, check sensor resistance value. 1. Discharge temp sensor not connected or damaged, check sensor resistance values. 2. Sensor head not located correctly. 16 421 01 9220 00

INSTALLATION INSTRUCTIONS R−410A Ductless Split System: DLF4(A/H), DLC4(A/H) UNIT 18K & 24K, 230 Volts (Cont.) Malfunction Overload limit, compressor speed reduction Over current compressor speed reduction Compressor discharge temp high, compressor speed reduction Error Code Display F6 F8 F9 Indoor Unit Display Indicator Display (LED Flash 0.5s−ON/0.5s−OFF Running LED Cooling LED Heating_ LED Outdoor unit display (LED’s have 3 modes) OFF, ON, Flash D40 /D5 D41 /D6 D42/ D16 D43/ D30 3s off flash 6 times 3s off flash 8 times 3s off flash 9 times Operation Status Operation normal, compressor speed reduced Operation normal, compressor speed reduced Operation normal, compressor speed reduced Malfunction Refer to service manual 1. System voltage is too low 2. System voltage is high 1. Load is too great, ambient temp is too high 2. Refrigerant is low 3. Electric expansion valve malfunction DC voltage is too high PH 3s off flash 11 times Cooling; compressor stops, outdoor fan runs, heating all stop 1. Check voltage at terminal L and N. If higher than 265VAC, cut off power supply and restart system. 2. If input voltage is normal, check the voltage at capacitor on AP1. Replace AP1 if the capacitor voltage range is 200−280v. System current too high U9 3s off flash 13 times Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. AP1 malfunction, replace the AP1 in outdoor unit Compressor current too high Defrost Compressor overload protection System overload protection IPM protection P5 H1 H3 H4 H5 3s off flash 15 times 3s off flash 1 times 3s off flash 3 times 3s off flash 4 times 3s off flash 5 times Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. Heating mode, compressor runs, indoor/outdoor fan motor stop Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. Refer to service manual (IPM protection, compressor speed reduction, compressor overcurrent protection) Normal Operation 1. Compressor terminal loose, the resistance should be lower than 1 ohm 2. Refer to service manual. (discharge/overload protection) Refer to service manual Refer to service manual 421 01 9220 00 17

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