Photovoltaic Direct-driven Inverter VRF
64
——
Debugging code Progress code
Status code
Meaning
progress
LED1
LED2
LED3
Code
Display
status
code
Display
status
Code
Display
status
17_Debugging
finished
01-
04
Light
OF
Light
OF
Light
Debugging is finished. System is on
standby condition. LED1 displays
module address. LED2 and LED3
display “OF”.
Step 19:
after debugging is finished, some functions can be set up according to project’s
actual needs. For specific details, please refer to System Functions Setup . If no special
requirements, skip this step.
Step 20:
deliver the product to user and inform user about usage precautions.
5.2.3 Appendix: judgment reference of normal operational parameters
Reference of Debug Parameters of
photovoltaic multi VRF
System
N
o.
Debug item
Parameter name
Unit
Reference
1
System
parameters
ODU
Outdoor ambient temp ºC(°F)
——
2
Discharge tube temp of
inverter compressor 1
ºC(°F)
● When system compressor starts up, temp of
discharge tube or casing top in cooling mode is
within 70~95ºC (158~203°F), and at least 10
ºC(50°F) higher than system high pressure
saturation temp; Temp in heating mode is within
65~80ºC(149~176°F), and at least 10ºC(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
ºC(°F)
4
Discharge tube temp of
inverter compressor 2
ºC(°F)
5
Casing top temp of
inverter compressor 2
ºC(°F)
6
Defrost temp 1
ºC(°F)
● In cooling mode, defrost temp1 is 5~11ºC
(41~51.8°F) lower than system high pressure value;
● In heating mode, defrost temp1 is about 2ºC
(35.6°F) different from system low pressure value.
7
System high pressure
ºC(°F)
● System’s normal high pressure value is within
20~25ºC(68~77°F) According to the change in
ambient temp and system operational capacity,
system’s high pressure value is 10~40
ºC(50~104°F) higher than ambient temp The higher
ambient temp is, the smaller temp difference is.
● When ambient temp is 25~35ºC(77~95°F),
system’s high pressure value in cooling mode is
44~53ºC(111.2~127.4°F).
● When ambient temp is -5~10ºC(23~50°F),
system’s high pressure value in heating mode is
40~52ºC(104~125.6°F).
8
System low pressure
ºC(°F)
● When ambient temp is 25~35ºC(77~95°F),
system’s low pressure value in cooling mode is
0~8ºC(32~46.4°F).
● When ambient temp is -5~10ºC(23~50°F),
system’s low pressure value in heating mode is
-15~5ºC(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.
Summary of Contents for GMV-Y120WM/C-F
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