Gree Versati III GRS-CQ4.0Pd/NhG-K Owner's Manual page 16

Air-to-water Heat Pump
Notes
(a) In this case, three-way valve should be installed and should be complied with installation of this manual;
(a) Sanitary water tank should be equipped with internal electric heater to to secure enough heat energy in the
very cold days.
CASE 3 : Connecting Sanitary Water Tank, Under-floor Coil and FCU
Note
(a) Two-way valve is very important to prevent dew condensation on the floor and Radiator while cooling mode.
T
Shut off value Remote room Thermostat(Field supply )
3-wa y valu e(Field supply)
High temper ature line
12
Under-floor Coil
M
FCU2
Sanitary water tank
Electric heater
By-p ass value(Field supply)
B
temperature line
SPLIT TYPE
B
FCU2