DC Inverter Air
Low pressure switch fault (open circuit
re‐energize it to resume operation
Over/under‐voltage protection
Inverter module protection
High voltage switch protection
Stop system, release protection, resume
Stop system, release protection, resume
operation; after three protections within one
temperature protection (Td)
hour, it shall be re‐energized to resume
Stop system, release protection, resume
Condenser high temperature protection
operation; after three protections within one
hour, it shall be re‐energized to resume
Inverter compressor current protection
Stop system, release protection, resume
Low voltage switch protection
operation; after three protections within one
hour, it shall be re‐energized to resume
IPM Module over‐current protection
Stop system, release protection, resume
IPM Module low voltage protection
Stop system, release protection, resume
IPM Module high voltage protection
Stop system, release protection, resume
Indoor unit coil temperature protection
Stop system, release protection, resume
under‐temperature protection (T4)
Drive radiator temperature protection
Stop system, release protection, resume
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