Gree GMV-280WM/E1-X

GMV DC Inverter VRF
60
5.2.3 Appendix: judgment reference of normal operational parameters
Reference of Debug Parameters of GMV5E DC Inverter Multi VRF System
No.
Debug item
Parameter name
Unit
Reference
1
System
parameters
ODU
Outdoor ambient temp
℃
——
2
Discharge tube temp of
inverter compressor 1
℃
●When system compressor starts up, temp of discharge
tube or casing top in cooling mode is within 70~95
℃
, and
at least 10
℃
higher than system high pressure saturation
temp; Temp in heating mode is within 65
℃
~80
℃
, and at
least 10
℃
higher than system high pressure saturation
temp.
●When inverter compressor starts but inverter
compressor 2 stops, the discharge tube temperature of
inverter compressor 2 is almost the same with ambient
temp.
3
Casing top temp of
inverter compressor 1
℃
4
Discharge tube temp of
inverter compressor 2
℃
5
Casing top temp of
inverter compressor 2
℃
6
Defrost temp 1
℃
●In cooling mode, defrost temp1 is 5~11
℃
lower than
system high pressure value;
●In heating mode, defrost temp1 is about 2
℃
different
from system low pressure value.
7
System high pressure
℃
●System’s normal high pressure value is within 20
℃
~25
℃
. According to the change in ambient temp and
system operational capacity, system’s high pressure value
is 10 ~40
℃
higher than ambient temp The higher ambient
temp is, the smaller temp difference is.
●When ambient temp is 25~35
℃
, system’s high pressure
value in cooling mode is 44~53
℃
.
●When ambient temp is -5~10
℃
, system’s high pressure
value in heating mode is 40~52
℃
.
8
System low pressure
℃
●When ambient temp is 25~35
℃
, system’s low pressure
value in cooling mode is 0~8
℃
.
●When ambient temp is -5~10
℃
, system’s low pressure
value in heating mode is -15~5
℃
.
9
Opening angle of
heating EXV
PLS
●In cooling mode, heating electronic expansion valve
remains 480PLS.
●In heating mode, the opening angle of adjustable
electronic expansion valve varies within 120~480PLS.
10
Operating freq. of
inverter compressor 1
Hz
Varies from 20Hz to 95Hz
11
Current of inverter
compressor 1
A
●According to different operating freq. and different load,
current will vary from 7A to 25A.
12
IPM temp of inverter
compressor 1
℃
●When ambient temp is lower than 35
℃
, IPM temp is
below 80
℃
. Highest temp won’t be above 95
℃
.
13
Inverter compressor 1
driven bus voltage
V
●Normal bus voltage is 1.414 times of power voltage. For
example, if 3-phase power voltage is 390v, then the bus
voltage after rectification is: 390v X 1.414=551v. It’s
normal if actual voltage varies 15v from the calculated
voltage.
14
Operating freq. of
inverter compressor 2
Hz
Varies from 30Hz to 100Hz
15
Current of inverter
compressor 2
A
●According to different operating freq. and different load,
current will vary from 7A to 20A.
16
IPM temp of inverter
compressor 2
℃
●When ambient temp is lower than 35
℃
, IPM temp is
below 80
℃
. Highest temp won’t be above 95
℃
.
17
Inverter compressor 2
driven bus voltage
V
●Normal bus voltage is 1.414 times of power voltage. For
example, if 3-phase power voltage is 390v, then the bus
voltage after rectification is: 390v X 1.414=551v. It’s
normal if actual voltage varies 15v from the calculated
voltage.