Gree GMV6 DC Inverter VRF Units Service Manual
39
3.2.7 Reference Values of Unit Normal Operation Parameters
(Commissioning Check)
Reference Values of Commissioning Parameters of the DC Inverter VRF Air-conditioning Unit
No.
Commissioning Item
Parameter
Name
Unit
Reference Value
Remarks
1
System
parameters
Outdoor unit
parameters
Outdoor
ambient
temperature
°C
—
—
2
Air discharge
pipe
temperature of
inverter
compressor 1
°C
●When the system compressor starts
running and in normal cooling mode,
the air discharge pipe or shell top
temperature is between 70°C and
95°C, more than 10°C higher than the
saturation temperature corresponding
to the high system pressure; in normal
heating mode, the air discharge pipe or
shell top temperature is between 65°C
and 90°C, more than 10°C higher than
the saturation temperature
corresponding to the high system
pressure.
—
3
Shell top
temperature of
inverter
compressor 1
°C
—
4
Air discharge
pipe
temperature of
inverter
compressor 2
°C
—
5
Shell top
temperature of
inverter
compressor 2
°C
—
6
Temperature
of the
defrosting
temperature
sensor
°C
●When the system
operates in cooling
mode, the temperature of the
defrosting temperature sensor is 5°C to
11°C lower than the high system
pressure;
●When the system operates in heating
mode, the difference between the
temperature of the defrosting
temperature sensor and the low system
pressure is about 2°C.
—
7
High system
pressure
°C
●The normal high system pressure
value is between 20°C and 55°C.
Based on the change of the ambient
temperature and operating capacity of
the system, the high system pressure
value is 10°C to 40°C higher than the
ambient temperature, and the higher
the ambient temperature, the smaller
the temperature difference between the
two is;
●In cooling mode, when the ambient
temperature is between 25°C and
35°C, the high system pressure is
between 44°C and 56°C;
●In heating mode, when the ambient
temperature is between –5°C and
10°C, the high system pressure is
between 40°C and 56°C.
—
8
Low system
pressure
°C
●In cooling mode, when the ambient
temperature is between 25°C and
35°C, the low system pressure is
between 0°C and 8°C;
●In heating mode, when the ambient
temperature is between –5°C and
10°C, the low system pressure is
between –15°C and 5°C.
—
Summary of Contents for GMV6 Series
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