Gree GMV-PD100W/NAB-K Service Manual page 17

Absolute pressure
value for discharge( )
Cooling
For ultra-high fan speed, you couldn't turn up the grade anymore;
Heating Mode:
The fan should run at high fan speed for 35s before the compressor is started, meanwhile, it is not
allowed to turn up to ultra-high fan speed within the earlier 3 minutes after the compressor started, but it could
be switched to low speed and stopping fan. You could turn up to the highest level ultra-high fan speed after 3
minutes.
Pressure section:
Absolute pressure value
for discharge( )
Heating
4) Defrosting Function
Defrosting Start Conditions
Keep heating (the four-way valve is under the heating position) for 50 minutes; when the intermediate
Or the outdoor ambient temperature is below -6 ; and keeps heating (the four-way valve is under the
heating position) for 2 hours;
Defrosting Stop Conditions:
Outdoor coil pipe temperature is higher than 15 or the defrosting is running for 10 minutes continuously.
Defrosting Movements:
The defrosting is made by switching four-way valve to cooling mode.
P 30
Shutdown the Turn down one grade (not
fan forcibly including stopping windshield )
P 37
Turn up one grade
0
-5
-10
-15
-10 -5
Outdoor Dry-bulb Temperature
30 P 42 42
Remain
37 P 48
Remain
0 5
DC Inverter Multi
VRF Service Manual
P 49 P 49
Turn up
one grade
Turn down one grade
10
13