Gree GMV-24WL/C-T Service Manual

GREE DC Inverter Side Discharge VRF Ⅱ for North America
92
Description of each stage of debugging progress
-
Debugging
code
Progress code
Status code
Code meaning and operation method
Progress
LED1
LED2
LED3
Code
Display
status
Code
Display
status
Code
Display
status
10_ Status
judgments of
outdoor valves
before startup
db
On
10
On
ON
On
Valves of ODU are being inspected.
Compressor will start operation for 2min
or so and then stop. The opening and
closing status of outdoor valves are as
below:
db
On
10
On
U6
On
Outdoor valves are not fully turned on.
Press main board’s SW6 button and
display shows “db 09 OC”. Then check if
the gas and liquid valves of ODU are
completely open. After confirmation,
press the SW6 button again. Then
compressor will start running for about
2min to inspect the status of valves.
db
On
10
On
OC
On
Valves status is normal. Unit will display
as in the left for 2s and then start next
step.
12_ Confirm
debugging
startup
db
On
12
On
AP
Blink
Ready for units to start debugging. Press
main board’s SW7 button to confirm
startup of debugging. 2s later, main board
will display as below:
db
On
12
On
AE
On
Startup is confirmed. After displaying for
2s, system will choose “15_Cooling
debugging” or “16_Heating debugging”
according to ambient temperature. If the
project requests to add refrigerant but it is
not complemented before debugging,
then refrigerant can be added in this
process through the L-VALVE.
15_ Cooling
debugging
db
On
15
On
AC
On
Debugging for cooling mode. If no
malfunction occurs for 20min when
compressor is running, then system will
start progress 17. If malfunction occurs,
unit will display as below:
db
On
15
On
Error
code
On
Malfunction occurs when debugging for
cooling mode. After all malfunctions are
eliminated, system will start next step. If
power is off during troubleshooting,
system will start progress 17
automatically when power is resumed.
16_ Heating
debugging
db
On
16
On
AH
On
Debugging for heating mode. If no
malfunction occurs for 20min when
compressor is running, then system will
start progress 17. If malfunction occurs,
unit will display as below:
db
On
16
On
Error
code
On
Malfunction occurs when debugging for
heating mode. After all malfunctions are
eliminated, system will start next step. If
power is off during troubleshooting,
system will start progress 17
automatically when power is resumed.
17_ Debugging
finished
01
On
OFF
On
OFF
On
The entire unit has finished debugging
and under standby-by condition.

Gree GMV-24WL/C-T Specifications

General

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