GMV5 Home DC Inverter Multi VRF Units
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Step 15: Progress 11 is Calculate refrigerant charging amount manually.
There is no need to operate. System gives a prompt and then automatically enters the next
progress.
Step 16: Progress 12 is Unit commissioning startup confirmation.
In order to make sure that all preparations are done before starting up the unit, it is required to
confirm again whether to start the unit or not. Operation is as below:
If master unit displays as follows, it means the unit is waiting for confirmation signal.
12_Unit commissioning
startup confirmation
System waits for a unit
commissioning startup
command.
If it is confirmed to start up the unit, press SW7. The unit will display as follows and start next
progress automatically:
12_Unit
commissioning
startup
confirmation
The unit has been set to
commissioning opeartion status
of manual calculation of
refrigerant charging amount.
Step 17: After unit startup confirmation, system will select cooling/heating/water heating mode
according to ambient temperature.
A. If system selects cooling mode and water heating mode, the former part cooling mode will
be displayed as below:
15_Manual
charge first
cooling, then
water heating
operation
System is in cooling-mode
commissioning operation
(system automatically selects
the commissioning operation
mode with no need of manual
setting).
Malfunction occurs during
cooling-mode commissioning
operation.
Malfunction occurs to outdoor
unit pipes or valves.
System detects pipe failure of
indoor unit. XXXX means the
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