GMV DC Inverter VRF
63
Debugging:
Preheat time of compressor is
insufficient
Alarm because ODU quantity is
inconsistent
Wrong setting of ODU’s capacity
code/jumper cap
Abnormal communication of converter
Power supply phase sequence
protection
Emergency status of compressor
Refrigerant-lacking protection
Wrong address for driving board of
compressor
Emergency status of module
Alarm because valve is abnormal
Rated capacity is too high
Malfunction of pipeline for IDU
Malfunction of pipeline for ODU
The matching ratio of rated capacity for
IDU and ODU is too low
Setting of main IDU is succeeded
Communication malfunction between
mode exchanger and IDU
Emergency operation DIP switch code
of compressor is wrong
Malfunction of multiple main control units
Charging of refrigerant is invalid
Address DIP switch code of system is
shocking
Identification malfunction of IDU of
mode exchanger
Malfunction of multiple wired controller
Communication malfunction between
IDU, ODU and IDU’s wired controller
Communication malfunction between
IDU and the receiving lamp
Communication malfunction between
main control and DC-DC controller
Overflow distribution of IP address
Communication malfunction between
main control and inverter compressor
driver
Communication malfunction between
mode exchanger and ODU
Communication malfunction between
main control and inverter fan driver
Malfunction of network for IDU and ODU
of mode exchanger
Malfunction of lack of IDU
Communication malfunction of mode
exchanger
Alarm because project code of IDU is
inconsistent