Gree GMV-24WL/C-T User Manual

DC Inverter Multi VRF System
20
Description of each stage of debugging progress
——
Debugging code
Code meaning and operation method
Progress
LED
Code
Display status
15_ Cooling
debugging
15/AC
Display
circularly
Debugging for cooling mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s, the
system will enter normal standby status.
15/error code
Display
circularly
Malfunction occurs when debugging for cooling mode.
16_ Heating
debugging
16/AH
Display
circularly
Debugging for heating mode. If no malfunction occurs for
50min when compressor is running, then the system is
certified as normal. After shutting down the unit for 5s, the
system will enter normal standby status.
16/error code
Display
circularly
Malfunction occurs when debugging for heating mode.
17_ Debugging
finished
oF ON
The entire unit has finished debugging and under standby-by
condition.
5.2.3 Appendix: Reference of normal operation parameters
No
Debug item
Parameter name
Unit
Reference
1
System parameters
ODU
parameters
Outdoor temperature
°C(°F)
——
2
Compressor discharge
temp
°C(°F)

When compressor starts, discharge temp in cool
mode is within 70~105°C(158~221°F) and at least
10°C(50°F) higher than the high pressure
saturation temp.
 As for temp in heat mode, it is within
65~90°C(149~194°F) and at least 10°C(50°F)
higher than the high pressure saturation temp.
3 Defrosting temp °C(°F)
 In cool mode, defrosting temp is
4~10°C(39~50°F) lower than system’s high
pressure value.
 In heat mode, defrosting temp is about 2°C(36°F)
different from system’s low pressure value.
4 System high pressure °C(°F)

In cool mode, the normal high pressure value is
within 20°C~55°C(68~131°F). According to the
change of ambient temp and system’s operating
capacity, the high pressure value will be
10°C~30°C(50~86°F) higher than ambient temp.
The higher ambient temp is, the smaller temp
difference is. If ambient temp is 25~35°C
(77~95°F) in cool mode, system’s high pressure
value will be within 44~53°C(111~127°F).
 In heat mode, if ambient temp is above
-5°C(23°F), system’s high pressure value is within
40~52°C(104~126°F). If ambient temp is low and
many IDUs are turned on, the high pressure will
be lower.
5 System low pressure °C(°F)
 When ambient temp in cool mode is
25~35°C(77~95°F), the low pressure value is
0~8°C(32~46°F).
 When ambient temp in heat mode is above
-5°C(23°F), the low pressure value is
-15~8°C(5~46°F).
6
Opening angle of
thermal EXV
PLS
 In cool mode, the thermal electronic expansion
valve remains 480PLS.
 In heat mode, the adjustable opening angle of
EXV is 40~480PLS.

Gree GMV-24WL/C-T Specifications

General

Brand	Gree
Model	GMV-24WL/C-T
Category	Inverter
Language	English