Gree Ultra Heat GMV-V72W/A-F, Руководство по обслуживанию, Страница: 96 / 240

Ultra Heat GMV VRF Technical Service Manual COMMISSIONING OPERATION
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If unit have some errors, progress 01 will show the following errors:
——
Debugging Code Progress Code Status Code
Meaning
Progress
LED1 LED2 LED3
Code
Display
status
Code
Display
status
Code
Display
status
01_Detect unit
malfunction
db light 01 light CC light
System doesn’t have master unit.
Reset master unit.
db light 01 light CF light
More than 2 master units are set.
Reset master unit.
db light 01 light C2 Light
System detects ―driven
communication error between master
unit and inverter compressor‖.
db light 01 light C3 Light
System detects ―driven
communication error between master
unit and inverter fan‖.
db light 01 light F1 Light Malfunction of high-pressure sensor.
db light 01 light
XXXX/d
3
Light
XXXX means IP of IDU with error. 3s
later, d3 will be displayed. For
instance, if no.100 IDU has d3 error,
then the LED3 will display circularly
as below: 01(2s later), 00(2s later),
d3.
… … … … … … …
db light 01 light OC light
There is no malfunction. Next step
will start automatically.
According to the above errors, check or reset the unit, then start debugging again. Elimination
methods of above error can be found in Troubleshooting.
Step 7: in progress 02, the quantity of modules needs to be confirmed manually. Main board will
display:
——
Debugging code Progress code Status code
Progress
LED1 LED2 LED3
Code Display status Code Display status Code Display status
02_Quantity of
modules
db light 02 light
Quantity of
modules
blink
If the quantity displayed is the same with actual quantity, then press SW4 confirmation button on the
master unit to confirm it. Unit will start next progress:
——
Debugging code Progress code Status code
Progress
LED1 LED2 LED3
Code Display status Code Display status Code Display status
02_Confirm the
quantity of modules
db light 02 light OC light
If the quantity displayed is different from actual quantity, then disconnect power and check whether
communication wire among each module is correctly connected. After the check, start debugging again.
Step 8: in progress 03, the quantity of IDUs needs to be confirmed manually. Main board will
display: