Hitachi YUTAKI S80 Series - Page 144

11. Installation conguration
TCGB0075 rev.0 - 11/2012
144

Solar combination (Installation example 7)
N O T E
Solar combination is not available when the HITACHI domestic hot water tank is integrated over the indoor unit.
Two space heating applications (High & Low water temperature) + Domestic Hot Water Tank + Solar combination + Heating
complement (Boiler or Electric heater combination): Two space heating application with a Room Thermostat as an option
heated by Heat Pump and alternating boiler or supplemented by 3-stage electrical heater. Domestic Hot Water Tank is
heated by Heat Pump and also by free energy of the sun by means of a eld supplied Solar panel and eld supplied Solar
Kit. The LCD is integrated with the DHW Tank.
Item Description
1 Outdoor unit
2 Indoor unit
3 R134a compressor
4 Water pump
5 3-way valve
6 T-branch
7 Shut-off valves (eld supplied)
8 Domestic hot water tank
9
Security valve
(DHWT-SWG-01 accessory)
10
DHWT heater
(integrated with DHWT)
Item Description
11
LCD controller
(integrated with DHWT)
12
Second temperature kit
(ATW-2KT-01 accessory)
13 Motorized valve (eld supplied)
14
Aquastat
(ATW-AQT-01 accessory)
15 Boiler (eld supplied)
16
Water check valve
(ATW-WCV-01 accessory)
17 Solar Kit (eld supplied)
18
Solar pump & control
(eld supplied)
Item Description
19 Solar panel (eld supplied)
20
Hydraulic separator
(ATW-HSK-01 accessory)
A
2nd Water Temperature sensor
(ATW-WTS-02 accessory)
B Secondary water pump
C Mixing valve
D Hydraulic separator
E Shut-off valve
F
Universal water sensor (Two3)
(ATW-WTS-02Y accessory)
G
Water pump 3 (WP3)
(eld supplied)
12
D
E
9
B
C
A
G
F
Boiler
Boiler
Signal
20
13
16
Domestic
Water
High Temperature (80ºC)
Low Temperature (35ºC)
1
7
4
6
5
3
2
DHW Tank
17
18
Solar Kit (eld supplied)
15
17
7
16
19
11
10
8
14