GMV DC Inverter VRF
59
Following circumstance are not malfunction.
When unit is started immediately after it is
just turned off
Overload protection switch makes it run after 3
minutes delay
Standby operating for about 1 minute
Indoor high humidity air is cooled rapidly
Slight cracking sound is heard when just
turned on
It is noise when electronic expansion valve
initialization
There is consecutive sound when cooling
That's sound for gas refrigerant flowing in unit
There is sound when unit starts or stops
That's sound for gas refrigerant stops to flow
There is slight and consecutive sound when
unit is running or after running
That's sound for operation of drainage system
Cracking sound is heard when unit is
operating and after operating
That’s sound caused by expansion of panel
and other parts due to temperature change
When unit runs after no operation for a long
period
Dust in indoor unit is blew out
The room odor absorbed by the unit is blew out
again
Indoor unit still
runs after switch
off
After every indoor unit receive "stop" signal,
fan will keep running
Indoor fan motor will keep running 20-70s so
as to take good use of excess cooling and
heating and prepare for next operation
COOL or HEAT mode cannot be operated
When the indoor operating mode conflicts with
that of outdoor unit, indoor fault indicator will
flash and conflict will be shown on the wired
controller after 5 minutes. Indoor unit stops to
run and meanwhile change outdoor operating
mode as the same as that of indoor unit, then
the unit will go back to normal. COOL mode
doesn't conflict with DRY mode. FAN mode
doesn't conflict with any mode.