GMV DC Inverter VRF
61
Debugging Parameter Reference Value for DC Inverter VRF Unit
10
System
parameter
Outdoor
unit’s
parameter
Operation frequency of
inverter compressor
Hz ● Change among 20Hz~140Hz —
11
IPM module
temperature of inverter
℃
● IPM module temperature is lower than
80
℃
. The highest temperature doesn’t
℃
—
12
Drive bus voltage of
inverter compressor
V
● The normal bus voltage is 1.414 times of
the power supply voltage. For example, if
the three-phase power supply voltage is
390V, then the rectified bus voltage is:
390V×1.414 = 551V. The normal deviation
between the measured value and the
calculated value within 15V.
—
13
Fan operation
frequency
Hz
● Adjust the operation in the range of
0~85Hz according to the system pressure
—
14
Indoor
unit’s
parameter
Inlet tube temperature
of indoor heat
℃
● According to the ambient temperature,
the inlet temperature is 1
℃
~7
℃
lower
than the outlet temperature for the same
indoor unit under cooling mode.
●The inlet temperature is 10
℃
~20
℃
lower than the outlet temperature for the
same indoor unit under the heating mode.
—
15
of indoor heat
exchanger
℃
—
16
Opening of indoor
electronic expansion
valve
PLS
● 2000PLS electronic expansion valve: the
opening is adjusted automatically in the
range of 200~2000PLS;
● 480PLS electronic expansion valve: the
opening is adjusted automatically in the
—
17
Drainage
system
— —
● The indoor unit drains smoothly and
thoroughly, and the condensate water pipe
has no slope water storage; the outdoor
unit can drain water from the drain pipe
without dripping directly from the unit
—
18
Other — —
●There is no abnormal noise for the
operation of the compressor, indoor fan
and outdoor fan. The unit is running
—
5 Operation Instruction
For instructions on how to use the air conditioner, please refer to the user manual of wired
controller or remote controller.
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