Hitachi YUTAKI S80 R410A Series Installation And Operation Manual page 74

◆ 3 Way valve for DHW tank output
YUTAKI units can be used to heat DHW. The signal is used on a 3‑way motorized diverting valve and
to provide control of supply water flow (water flow for space heating when there is no signal, and
water flow for DHW when signal is ON)
32
(C)
Brown
Black
Output terminals (Optional output functions)
3 Way valve for Swimming pool (Default for Output 1)
◆
YUTAKI units can be used to heat the water of a swimming pool. The signal is used on a 3‑way
motorized diverting valve and to provide control of supply water flow for the swimming pool. This
output is available when the function is enabled from the Unit controller.
Using the appropriate wiring, connect the valve cables as shown in the previous picture.
33
(L)
Brown
Water pump 3 (Default for Output 2)
◆
When the boiler is configured with the heat pump or needs an additional pump for the system, a
hydraulic separator or buffer tank must be used to ensure a correct hydraulic balance
PMEN0648 rev.0 - 03/2023
33 34
(L)
M
Blue
3WV / DHW
DHWT
34 35
(N) (C)
Blue
M
Black
3WV / SWP
Output 1
34
(N)
M
Valve requirements:
• Power supply: 230V AC 50Hz
• Maximum running current: 100mA
Valve requirements:
• Power supply: 230V AC 50Hz
• Maximum running current: 100mA
36
(L)
Water pump III
(Output 2)
6
65