Gree GMV-335WM/G-X - Parameter Judgment Reference Value for Unit Normal Operation

GMV DC Inverter VRF
60
4.4 Parameter Judgment Reference Value for Unit Normal Operation
Debugging Parameter Reference Value for DC Inverter VRF Unit
No.
Debugging item
Parameter name
Unit
Reference value
Remark
1
System
parameter
Outdoor
unit’s
parameter
Outdoor ambient
temperature
℃
— —
2
Discharge pipe
temperature of inverter
compressor 1
℃
● When the compressor starts running, the
normal discharge pipe of cooling or shell
top temperature is 70~95
℃
, above 10
℃
higher than the saturation temperature of
system high pressure; the normal heating
temperature is 65~90
℃
, above 10
℃
higher
than the saturation temperature of system
high pressure.
—
3
Shell top tube
temperature of inverter
compressor 1
℃
—
4
Discharge pipe
temperature of inverter
compressor 2
℃
—
5
Shell top tube
temperature of inverter
compressor 2
℃
—
6
Temperature of
defrosting temperature
sensor
℃
● When the system is running in cooling
mode, the temperature of defrosting
temperature sensor is 5~11
℃
lower than
system high pressure;
● When the system is running in heating
mode, the temperature difference between
the defrosting temperature sensor and the
system low pressure is about 2
℃
.
—
7 System high pressure
℃
● The normal high pressure value of the
system is 20
℃
~55
℃
. According to the
change of ambient temperature and the
change of operating capacity of the
system, the high pressure value of the
system is 10
℃
~40
℃
higher than the
ambient temperature. The higher the
ambient temperature, the smaller the
temperature difference;
● When the unit operating in the cooling
mode at the ambient temperature of
25~35
℃
, the system high pressure value is
44~56
℃
;
● When the unit operating in the heating
mode at the ambient temperature of -
5~10
℃
, the system high pressure value is
40~56
℃
;
—
8 System low pressure
℃
● When the unit operating in the cooling
mode at the ambient temperature of
25~35
℃
, the system low pressure value is
0~8
℃
;
● When the unit operating in the heating
mode at the ambient temperature of -
5~10
℃
, the system low pressure value is -
15~5
℃
;
—
9
Opening of electronic
expansion valve of
heating
PLS
● During cooling operation, the electronic
expansion valve of heating is 3000PLS;
● During heating operation, the adjustable
range of the opening of electric expansion
valve opening is 720~3000PLS.
—