Gree GMV-120WM/B-F

GMV DC Inverter VRF
56
5.2.3 Appendix: judgment reference of normal operational parameters
Reference of Debug Parameters of GMV5 DC Inverter Multi VRF System
No.
Debug item
Parameter name
Unit
Reference
1
System
parameters
ODU
Outdoor ambient
temp
℃
(°F)
——
2
Discharge tube
temp of inverter
compressor 1
℃
(°F)
 When system compressor starts up, temp of discharge
tube or casing top in cooling mode is within 70~95
℃
(158~203°F), and at least 10
℃
(50°F) higher than
system high pressure saturation temp; Temp in
heating mode is within 65~80
℃
(149~176°F), and at
least 10
℃
(50°F) 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
℃
(°F)
4
Discharge tube
temp of inverter
compressor 2
℃
(°F)
5
Casing top temp of
inverter
compressor 2
℃
(°F)
6
Defrost temp 1
℃
(°F)
 In cooling mode, defrost temp1 is 5~11
℃
(41~51.8°F)
lower than system high pressure value;
 In heating mode, defrost temp1 is about 2
℃
(35.6°F)
different from system low pressure value.
7
System high
pressure
℃
(°F)
 System’s normal high pressure value is within 20~25
℃
(68~77°F) According to the change in ambient temp
and system operational capacity, system’s high
pressure value is 10~40
℃
(50~104°F) higher than
ambient temp The higher ambient temp is, the smaller
temp difference is.
 When ambient temp is 25~35
℃
(77~95°F), system’s
high pressure value in cooling mode is 44~53
℃
(111.2~127.4°F).
 When ambient temp is -5~10
℃
(23~50°F), system’s
high pressure value in heating mode is 40~52
℃
(104~125.6°F).
8
System low
pressure
℃
(°F)
 When ambient temp is 25~35
℃
(77~95°F), system’s
low pressure value in cooling mode is 0~8
℃
(32~46.4°F).
 When ambient temp is -5~10
℃
(23~50°F), system’s
low pressure value in heating mode is -15~5
℃
(5~41°F).
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 40A.
12
IPM temp of
inverter
compressor 1
℃
(°F)
When ambient temp is lower than 35
℃
(95°F), IPM temp
is below 85
℃
(185°F). Highest temp won’t be above
95
℃
(203°F).
13
Inverter
compressor 1
V
Normal bus voltage is 1.414 times of power voltage. For
example, if 3-phase power voltage is 220V, then the bus