Photovoltaic Multi VRF
27
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
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;
db
On
15
On
Error
code
On
Malfunction
occurs
when
debugging for cooling mode.
After all malfunctions are
eliminated,
system will start
next step.
Содержание GMV-Y120WL/A-T
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