Gree Versati GRS-CQ4.0Pd/NhH-E Owner's Manual page 17

SPLIT TYPE
CASE 3 : Connecting Sanitary Water Tank, Under-floor Coil and FCU
Outdoor
By-pass valve (field supplied)
Notes
(a) The two-way valve is very important to prevent dew condensation on the floor and FCU while cooling mode
(b) In this case, three-way valve should be installed and should be complied with installation of this manual;
(c) Anitary water tank should be equipped with internal electric heater to secure enough heat energy in the
very cold days.
(d) When the FCU and the underfloor coil are used at the same time, performance of the underfloor coil is
satisfied firstly. When performance of the FCU is required, then "Floor config" should be set to "Without".
2-way valve (field supplied)
Air-to-water Heat Pump Split Versati
Indoor
Under-floor coil
Shut-off valve
13
FCU1
FCU2
Sanitary water tank