Hitachi YUTAKI S80 Series Technical Catalogue page 144

11. Installation configuration

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 field supplied Solar panel and field supplied Solar
Kit. The LCD is integrated with the DHW Tank.
19
1
6
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 (field supplied)
8 Domestic hot water tank
Security valve
9
(DHWT-SWG-01 accessory)
DHWT heater
10
(integrated with DHWT)
144
TCGB0075 rev.0 - 11/2012
High Temperature (80ºC)
18
7
16
17
8
DHW Tank
10
5
11
7
9
4
2
3
Item Description
LCD controller
11
(integrated with DHWT)
Second temperature kit
12
(ATW-2KT-01 accessory)
13 Motorized valve (field supplied)
Aquastat
14
(ATW-AQT-01 accessory)
15 Boiler (field supplied)
Water check valve
16
(ATW-WCV-01 accessory)
17 Solar Kit (field supplied)
Solar pump & control
18
(field supplied)
Low Temperature (35ºC)
14
13
F
G
E
20
15
Solar Kit (field supplied)
Boiler
16
Boiler
Signal
Domestic
Water
Item Description
19 Solar panel (field supplied)
Hydraulic separator
20
(ATW-HSK-01 accessory)
2nd Water Temperature sensor
A
(ATW-WTS-02 accessory)
B Secondary water pump
C Mixing valve
D Hydraulic separator
E Shut-off valve
Universal water sensor (Two3)
F
(ATW-WTS-02Y accessory)
Water pump 3 (WP3)
G
(field supplied)
A
B
C
D
12
17