GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
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If the refrigerant is proved satisfactory, fill refrigerant of the combined amount of the rated amount
(specified on the nameplate) and the calculated refrigerant loss amount.
For a multi-modular unit system, if only the refrigerant of an ODU is drawn out, add 80% refrigerant
of the rated fill amount (specified on the nameplate of the ODU) and start the system for a debugging
test.
Step 16: Install electric parts.
Install the electric box and connect various parts to the electric box by referring to the marks made
beforehand and the wiring diagram on the back of the box. Wire the compressors and corresponding
electric heating belts.
NOTE:
Wires should be checked against the wiring diagram beforehand so that they can be
connected correctly.
Step 17: Start for debugging.
Start the units and set them to run in refrigerating full-start, refrigerating single-start, heating
full-start, and heating single-start modes respectively. Duration for each running mode should be 30
minutes at least. After the debug, analyze data and adjust the unit system, to ensure indexes of the
entire system. For details about each index, please consult after-sale persons and technicians.
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