Hitachi RWM-(H)FSN3E Technical Catalogue page 158

11 Installation
configurations

Option 2
The solar panels gather heat from the sun. When the temperature of the glycol solution in the solar panel rises above the
water temperature in the domestic hot water tank, solar pump station's pump is switched ON and the solar kit's 3-way valve
is diverted to the Sanitary Tank. At the same time, the DHW's 3-way valve is switched OFF and the heat pump continues
working to heat the space.
Solar
panel
IVX
158
TCGB0070 rev.3 - 04/2012
Field Supply
Solar
Pump &
Control
DHWT Accessory (Field Supply)
Sensor solar 2
(Field Supply)
DHWT
Aux Heater
R410a
3wv Solar
o solar combina-
T
tion options
(space heating/swi-
mming pool/...)
Sensor so-
lar 1 (Field
Supply)
To HP combination
H20
options
(space heating/swim-
ming pool/...)
3wv DHWT