Gate-Controller; Charging And Discharging Of Refrigerant - Gree GRS-CQ4.0Pd/NhG3-E Owner's Manual

MONOBLOC TYPE
Step 2. Wired controller setting
Optional electric heater should be selected "1/2" group if necessary from COMMISION → FUNCTION,then set
switch on (outdoor)temperature and control logic(1/2).

14. Gate-controller

If there is gate control function, installation guide follow as:

15. Charging and Discharging of Refrigerant

The unit has been charged with refrigerant before delivery. Overcharging or undercharging will cause the
compressor to run improperly or be damaged. When refrigerant is required to be charged or discharged for
installation, maintenance and other reasons, please follow steps below and nominal charged volume on the
nameplate.
Other
Thermal
Optional
Water Temp.
Sensor
3-Way
Valve 2
2-Way
Valve 1
29
Air-to-water Heat Pump
Mixing
Floor
Valve
Temp.
Water Pump
Tank Temp. of
Heat pump system
Water Tank EH
Water Tank
.