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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 (Cont.) Malfunction PFC protection Compressor speed reduction Heating, high temp Start−up failure Compressor current circuit malfunction EEPROM malfunction Capacity charge malfunction Module Sensor circuit malfunction Module over temp protection Low DC bus voltage Low DC bus voltage protection IPM temp high limit/decrease compressor run speed Four−way valve malfunction Error Code Display HC H7 H0 LC U1 EE PU P7 P8 U3 PL 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 7 times 3s off flash 10 times 3s off flash 11 times 3s off flash 13 times 3s off flash 15 times 3s off flash 17 times 3s off flash 18 times 3s off flash 19 times 3s off flash 20 times 3s off flash 21 times EU U7 Operation Status 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. 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. 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. Cooling, dehumidifying; compressor stops, indoor fan motor runs, heating all stop. Operation normal, compressor speed reduced In heating mode, all stop Malfunction Refer to service manual Refer to service manual Refer to service manual Refer to service manual Replace outdoor board AP1 Replace outdoor board AP1 Refer to capacitor charging service manual Replace the outdoor boar AP1 Check the IPM heat sink or replace outdoor board AP1 Supply voltage is not stable 1. Check supply voltage, if voltage lower than 150VAC, restart the unit when the power supply is normal. 2. Check reactor L connection Check the IPM heat sink or replace outdoor board AP1 1. Supply voltage is lower than AC175vV 2. 4−way valve terminal loose/broken 3. 4−way valve damaged 18 421 01 9220 00

INSTALLATION INSTRUCTIONS R−410A Ductless Split System: DLF4(A/H), DLC4(A/H) Malfunction Error Code Display UNIT 18K & 24K, 230 Volts (Cont.) 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 Outdoor unit error U9 Indoor freeze protection FH Fan module protection L3 Remark D43/ D30 Operation Status Cooling: compressor will stop, indoor fan runs, heating all stop Operation normal, compressor speed reduced Cooling: outdoor fan motor and compressor stop; indoor fan runs. Heating all stop Malfunction Replace outdoor board AP1 Indoor unit return air blocked or fan speed is too low 1. Outdoor fan terminals loose, correct problem 2. Motor damaged, replace motor 3. Fan motor module on mainboard is damaged; replace mainboard AP1 1. Error codes only can be seen in the type which has the temperature display PCB. Some types do not have this function and have only the LED’s on the outdoor PCB. 2. If there is normal communication between the Indoor and Outdoor unit the green LED will be on. 421 01 9220 00 19

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