D.C. Inverter Multi VRF Modular
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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.
Step 15:
progress 11 is “Calculate refrigerant quantity manually”
No need to operate. System will start next progress.
Step 16:
progress 12 is “Confirm debugging startup”
In order to make sure all preparation work is done before startup, this step is designed for
user to confirm the startup again. Operate as below:
If master unit displays as below, system is waiting for confirmation signal.
12_Status
judgments of
outdoor valves
before startup
Ready for units to start debugging.
If it’s confirmed, press SW7 confirmation button. Unit will display as below and start next
progress.
12_Status
judgments of
outdoor valves
before startup
Manual calculation of refrigerant quantity
is set up.
Step 17:
after unit is confirmed to start debugging, system select cooling/heating mode
according to ambient temperature.
A If cooling mode is selected, relevant display is as below:
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