Gree GMV-VQ280WM/C-X Owner's Manual page 45

GMV Heat Recovery DC Inverter VRF
Step 5: Open the high pressure gauge valve (the low pressure gauge valve remains closed),
charge the system with refrigerant, and record the weight change of the refrigerant tank.
Step 6: When refrigerant tank is over and the refrigerant can't be charged to the system any more,
record the current weight of m2.
Step 7: Close the high pressure gauge valve and replace the refrigerant tank.
Step 8: Re-execute "step 3".
Step 9: Repeat "step 5" and "step 6" to record the weight of m3 before charging refrigerant and
the weight of m4 after charging refrigerant.
Step 10: If the refrigerant cannot be continuously charged into the system and the calculated
Fig.3.7.1
Fig.3.7.2
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