Parameters Reference Value For The Normal Operation Of Unit - Gree GMV-160WL/A-T Service Manual

Debugging
——
code
LED1
Process
Code
db
15_Debugging
operation for
cooling
db
db
16_Debugging
operation for
heating
db
17_ Finished
status of 01
debugging

1.3 Parameters reference value for the normal operation of unit

No. Debugging project
1
2
Parameters
Paramers
of outdoor
of system
unit
3
4
DC Inverter Multi VRF System II Service Manual
Stage process instruction for debugging
Process code
LED2
Display Display
Code
status status
ON 15 ON
ON 15 ON
ON 16 ON
ON 16 ON
ON OFF ON
Parameters
name
Outdoor
ambient
temperature
Discharge
temperature of
compressor
Defrosting
temperature
High pressure
of system
Status code
LED3
Code
AC
Correspoding error
code
AH
Correspoding error
code
OFF
Unit
℃
●After compressor is started up, normal discharge temperature
for cooling is 70~105℃, which is 10℃ above more than the
high pressure saturation temperature.
℃
●The normal temperature for heating is 65℃~90℃, which is
10℃ above more than the high pressure saturation
●During cooling operation, defrosting temperature is 4~10℃
lower than the high pressure value of system;
●During heating operation, defrosting temperature is almost
℃
equal to the low pressure value of system (the disffrence is
●Under cooling mode, the normal high pressure value is
20℃～55℃. According to the change of ambine temperature
and operation capacity of system, the high pressure value of
℃
system is 10℃～30℃ higher than the ambient temperature.
The higher the ambient temperature, the temperature
difference is small; Under cooling operation at the ambient
65
Code instruction and operation
method
Display
status
according ambient temperature
to start up operation. If it needs
to add refrigerant because of
engineering requirement while
the refrigerant hasn't been
added finished before
debugging, refrigerant can be
added through low-pressure
detection valve during operation
process.
Debugging under cooling mode.
If there's no malfunction after the
compressor operates for 20min,
ON it will enter into process 17 to
finish debugging; If there's
malfunction during operation
process, the display is as below:
There's malfunction during
debugging process under
ON cooling mode. After removing all
malfunctions, it will enter into the
next step determination.
Debugging under heating mode.
If there's no malfunction after the
compressor operates for 20min,
ON it will enter into process 17 to
finish debugging; If there's
malfunction during operation
process, the display is as below:
There's malfunction during
debugging operation under
ON heating mode. The unit will enter
into the next step determination
after elimanted all malfunctions.
Debugging is finished for the
ON complete unit. The system is at
standby status.
Reference value
——
temperature.
withing 2℃).