YMGI
•
Your Modern Green Idea
61
Step 12:
progress 08 is “Confirm preheated compressor”
If more than 8h of preheat time is detected, 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
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).
