Gree GMV-Y120WM/C-F, Owner'S Manual

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Photovoltaic Direct-driven Inverter VRF
61
——
Debugging code Progress code Status code
Meaning
progress
LED1 LED2 LED3
Code
Display
status
code
Display
status
Code
Display
status
08_Confirm
preheated
compressor
db Light 08 Light OC Light
Preheat time for compressor is 8h.
Start next progress.
If less than 8h of preheat time is detected, system will give error alarm and display as
below. Then press SW7 confirmation button to skip the wait time and start next progress. But
this will cause force start of the compressor, which may damage the compressor.
——
Debugging code Progress code Status code
Meaning
progress
LED1 LED2 LED3
Code
Display
status
code
Display
status
Code
Display
status
08_Confirm
preheated
compressor
db Light 08 Light UO Light
Preheat time for compressor is less
than 8h.
Step 13:
progress 09 is “Refrigerant judgments before startup”
If the refrigerant quantity inside the system meets the requirement of operation startup,
system will display as below and start next progress.
——
Debugging code Progress code Status code
Meaning
progress
LED1 LED2 LED3
Code
Display
status
code
Display
status
Code
Display
status
09_Refrigerant
judgments
before startup
db Light 09 Light OC Light
System refrigerant is normal. Start next
progress.
If there’s no or not enough refrigerant in the system to meet the requirement of operation
startup, system will display U4 “refrigerant shortage protection” and fails to start next progress.
Then check if there’s any leakage or add refrigerant inside until error eliminated.
——
Debugging code Progress code Status code
Meaning
progress
LED1 LED2 LED3
Code
Display
status
code
Display
status
Code
Display
status
09_Refrigerant
judgments
before startup
db Light 09 Light O4 Light
System refrigerant is not enough.
System downtime equilibrium pressure
is lower than 0.3MPa(4-2/5psig).
Step 14:
progress 10 is “Status judgments of outdoor valves before startup”
If master unit displays below, status judgments are enabled.
——
Debugging code Progress code Status code
Meaning
progress
LED1 LED2 LED3
Code
Display
status
code
Display
status
Code
Display
status
10_Status
judgments of
outdoor valves
before startup
db Light 10 Light ON Light Outdoor valves are being turned on.