Installation Instructions
Page 6
Refrigerant circuit AU282FHERA Ta one-way valve Tc strainer PMV strainer Te accumulator liquid pipe strainer SV2 outdoor 4-way valve gas pipe strainer oil segregator OP strainer oil return capillary Ts Td compressor LP gas-liquid segregator 图例 connected disconnected Tc2 PMV Ta indoor Tc1 06 4.
Refrigerant circuit AU282FHERA Ta one-way valve Tc strainer PMV strainer Te accumulator liquid pipe strainer SV2 outdoor 4-way valve gas pipe strainer oil segregator OP strainer oil return capillary Ts Td compressor LP gas-liquid segregator 图例 connected disconnected Tc2 PMV Ta indoor Tc1 06 4.
Installation Instructions
Page 65
... no Check fan motor and capacitor yes Is filter or heat exchanger dirty? yes no Measure balance pressure and running pressure to see if the refrigerant is high, if SV2 by thermometer too high? yes cleaning no Open the stop valves in system?
... no Check fan motor and capacitor yes Is filter or heat exchanger dirty? yes no Measure balance pressure and running pressure to see if the refrigerant is high, if SV2 by thermometer too high? yes cleaning no Open the stop valves in system?
Installation Instructions
Page 67
Low pressure too low protection Are connectors of refrigerant? yes no Check and reconnect no Do outdoor fan and PMV work properly during cooling cycle? no Adjust and maintain no Replace PCB Is pressure ... and EEV work properly during heating cycle? yes Check leakage point, evacuate and recharge 67 no and liquid pipe are dirty yes yes Cleaning If refrigerant circuit is leak? no Replace low pressure switch yes If outdoor stop valves of gas pipe no Repair fan motor and EEV yes If the...
Low pressure too low protection Are connectors of refrigerant? yes no Check and reconnect no Do outdoor fan and PMV work properly during cooling cycle? no Adjust and maintain no Replace PCB Is pressure ... and EEV work properly during heating cycle? yes Check leakage point, evacuate and recharge 67 no and liquid pipe are dirty yes yes Cleaning If refrigerant circuit is leak? no Replace low pressure switch yes If outdoor stop valves of gas pipe no Repair fan motor and EEV yes If the...
Installation Instructions
Page 68
... Then check if the wiring connection is proper, such as if the terminal of A and B is normal; if the system is in the range of refrigerant; Failure code 28 and 29: Check if the voltage input is lack of 380V± 15%. 8. if EEV works normally;
... Then check if the wiring connection is proper, such as if the terminal of A and B is normal; if the system is in the range of refrigerant; Failure code 28 and 29: Check if the voltage input is lack of 380V± 15%. 8. if EEV works normally;