GVZC20 Installation Manual

7. Select CHARGE MODE.

8. Select ON. Press DONE to initiate CHARGE mode.

(System will then run for 1 hour and either return to

cooling or heating mode depending on the mode

thermostat is set at COOL or HEAT, or stop if the

thermostat is set for FAN only mode.)

If charging is not complete after 1 hour, repeat

7. and 8.

Refer to “Adjust Refrigerant Level” and “Measure

Subcooling to Verify Proper Charge” for refrigerant

charge level adjustment.

9. To terminate CHARGE MODE, select CHARGE

mode screen again. Press OFF. Press DONE to

terminate CHARGE MODE.

10. Once CHARGE MODE is complete and has been

terminated, navigate to HOME screen. Enter

normal operation with temperature o󰀨set or thermostat

schedule, as desired.