Gree GMV5 Series Service Manual

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
147
2.4 REFERENCES FOR PROPER UNIT OPERATION PARAMETERS
SN
Commissioning Item
Parameter Name
Unit
Reference Value
1
System
paramete
r
Outdoor
unit
parameter
Outdoor
environment
temperature
°C/℉
——
2
Discharge pipe
temperature of
compressor
°C/℉
●When the system compressor is running, the normal
discharge pipe or top temperature for cooling is 70-95°C
（167-203℉）, which is more than 10°C（18℉） higher
than the saturation temperature corresponding to the
system high-pressure. The normal temperature for
heating is 65-80°C（149-176℉）, which is more than 10°C
（18℉） higher than the saturation temperature
corresponding to the system high-pressure.
3
Defrosting
temperature
°C/℉
●When the system runs for cooling, the defrosting
temperature is 5-11°C（41-52℉） lower than the system
high-pressure value.
●When the system runs for heating, the defrosting
temperature is 2°C（3.6℉） higher or lower than the
system low-pressure value.
4
System
high-pressure
°C/℉
●The normal system high-pressure value is 20-55°C
（68-131℉）. With the change of environment
temperature and system operation capacity, the system
high-pressure value is 10-40°C（50-104℉） higher than
the environment temperature. The higher the environment
temperature, the less the temperature difference.
●When the system runs for cooling with the environment
temperature being 25-35°C（77-95℉）, the system
high-pressure value is 44-53°C（111-127℉）.
●When the system runs for heating with the environment
temperature being -5 - 10°C（23-50℉）, the system
high-pressure value is 40-52°C（104-125℉）.
5
System
low-pressure
°C/℉
●When the system runs for cooling with the environment
temperature being 25-35°C（77-95℉）, the system
low-pressure value is 0-8°C（32-46℉）.
●When the system runs for heating with the environment
temperature being -5 - 10°C（23-50℉）, the system
low-pressure value is -15 - 5°C（5-41℉）.
6
Opening degree
of heating
electronic
expansion valves
PLS
●During the cooling operation, the heating electronic
expansion valves always remain at 480 PLS.
●During the heating operation, the adjustable electronic
expansion valves change between 120 and 480 PLS.
7
Current of
inverter
compressor
A
●According to different operation frequencies and loads,
the current of inverter compressor 1 changes between 7
and 25 A. The current of inverter compressor 2 changes
between 7 and 20 A.
8
IPM module
temperature of
inverter
compressor
°C/℉
●When the environment temperature is lower than 35°C,
the temperature of the IPM module is lower than 80°C.
The highest temperature is not higher than 95°C.
9
Indoor
unit
parameter
Environment
temperature of
IDU
°C/℉
——
10
Inlet-tube
temperature of
indoor heat
exchanger
°C/℉
●As the environment temperature is different, the
inlet-tube temperature is 1-7°C（1.8-12.6℉） lower than
the outlet-tube temperature of the same IDU in cooling
mode.
●The inlet-tube temperature is 10-20°C（18-36℉） lower
than the outlet-tube temperature of the same IDU in
heating mode.
11
Outlet-tube
temperature of
indoor heat
exchanger
°C/℉
12
Opening degree
of indoor
electronic
expansion valves
PLS
The opening degree automatically changes between 0
and 2000 PLS or between 0 and 480 PLS.
13
Communi
cation
Communication data
—
●The commissioning software shows that the number of
IDUs/ODUs is consistent with the actual engineering

Gree GMV5 Series Specifications

General

Brand	Gree
Model	GMV5 Series
Category	Inverter
Language	English