Begin Adding Additional Refrigerant; Charge To The Correct Weight; Remove Refrigerant Tank - Gree Neo GWH09MA-A3DNA3A Installation, Service & Troubleshooting

5. Begin adding additional refrigerant

Charging should be completed with the unit off (not
running) and through the liquid side with liquid
refrigerant. If there are no ports on the liquid side, use
the gas side port connection, charging with liquid.
Record the amount of additional charge for future
reference.

6. Charge to the correct weight

If the scale was zeroed with the refrigerant tank on the
scale, the amount added to the system will be a negative
amount since it was removed from the tank. After the
proper amount of refrigerant has been weighed in,
close the manifold valve.

7. Remove refrigerant tank

Close the tank valve, then carefully remove the hose
and adapter. Replace the charging port cap back on
the outdoor unit valves. On new installations, open all
liquid and vapor service valves.
Refrigerant Charging Procedure, cont.
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