Fill And Charge Refrigerant - Gree GMV-160WL/A-T Service Manual

DC Inverter Multi VRF System II Service Manual
b．When turn off the vacuum pump to stop vacuum-pumping, please turn off the valve at first and then
de-energize the vacuum pump;
c． Keep the vacuum pump for 2h and confirm that the pressure of vacuum meter hasn't been increased.

6.2 Fill and charge refrigerant

6.2.1 Filling procedure of regrigerant
a． Calculate the additional volume of refrigerant
Side discharge DC inverter and digital VRF (10KW above)
Additional volume of refrigerant R=LA×54 g
LA=L-50 m
L=(12.7 length of liquid pipe) × 2+(9.52 length of liquid pipe) ×1+(6.4 length of liquid pipe) ×0.4
When L is less than 50m, no need to add refrigerant
Other model:
Additional volume of refrigerant R=LA×54 g
LA=L-5m
L=(12.7 length of liquid pipe) × 2+(9.52 length of liquid pipe) ×1+(6.4 length of liquid pipe) ×0.4
When L is less than 50m, no need to add refrigerant
Examples:
Indoor unit
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