Gree GMV-Pd120W/NaB-K - Page 17

13
DC Inverter Multi
VRF Service Manual
DPOUSPM
Absolute pressure
value for discharge(
)
P
30 30 P 42 42 P 49 P 49
Cooling
Shutdown the
fan forcibly
Turn down one grade (not
including stopping windshield )
Remain
Turn up
one grade
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(
)
P
37 37 P 48 3
Heating Turn up one grade Remain Turn down one grade
4) Defrosting Function
Defrosting Start Conditions
Keep heating (the four-way valve is under the heating position) for 50 minutes; when the intermediate
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Temperature of Mid. Temp. sensor
Outdoor Dry-bulb Temperature
-10
-15
-10
-5
0
-5 0 5 10
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.