GMV DC Inverter VRF
53
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.
09_Refrigerant
judgments
before startup
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.
09_Refrigerant
judgments
before startup
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.
10_Status
judgments of
outdoor valves
before startup
Outdoor valves are being
turned on.
If unit detects that valve status is not normal, it will display as below:
10_Status
judgments of
outdoor valves
before startup
Outdoor valves are not fully
turned on.
Then check the big and small valves whether they are fully turned on. After the check, press
SW6 return button to restart the judgments.
If unit detects that valve status is normal, it will display as below and start next progress.
10_Status
judgments of
outdoor valves
before startup
Outdoor valves are turned on
normally.
To Next Page
Loading...
