Gree GRS-CQ8.0Pd/NaEK Service Manual page 32

Note:
① In this case, three-way valve should be installed and should comply with installation of this manual;
② Sanitary water tank should be equipped with internal electric heater to secure enough heat energy
in very cold days;
CASE 3: Connecting the Solar Thermal System
Note:
① The two-way valve is very important to prevent dew condensation on the floor and radiator at the
cooling mode.
② The 3-Way valve is automatic controlled by the unit. It switches to water tank loop for the water
heating mode and switches to floor/FCU loop at the space cooling/heating mode.
Design and Selection
27