Additional Combinations; Swimming Pool; Solar Panel - Hitachi RWM-(H)FSN3E Technical Catalogue

11 Installation
configurations

11.3 Additional combinations

11.3.1 Swimming pool

When the swimming pool operation is required, the siwimming pool pump starts to operate given the swimming pool pump
feedback. In this situation, the 3-way valve of the DHWT is not activated and the 3-way valve for the swimming pool chan-
ges its normal postion diverting to the swimming pool heat exchanger, allowing to heat the swimming pool water tempera-
ture to a confortable value.
IVX
R410a

11.3.2 Solar panel

The solar combination will enable to heat up the domestic water by means of the sun whenever the sun is available.
The solar option is designed to transfer the heat from the solar panels to the heat exchanger of the domestic hot water tank
and is to be installed in the split air to water heat pump system as shown in the schemes below:

Option 1
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, the pumps from the solar pump station and the solar kit begin operating
in order to transfer the heat to the domestic hot water tank's heat exchanger.
Solar
panel
IVX
157
TCGB0070 rev.3 - 04/2012
Hitachi DHWT Accessory
DHWT
Indoor Unit
H20
Field Supply
Solar
Pump &
Control
Hitachi DHWT Accessory
Sensor solar 2
DHWT
(Field Supply)
Aux Heater
R410a
Space Heating & Cooling
Space Heating &
Cooling
Swimming Pool area (Last priority)
3-Way valve
Field Supply
3-Way valve
Field Supply
Solar Kit Accessory
(Field Supply)
Sensor so-
lar 1 (Field
Indoor unit connection
Supply)
DHWT
Connection
Solar connection
Solar connection
DHWT
Indoor unit connection
Connection
H20
Swimming
Pool
11