Hitachi YUTAKI S80 Series - Page 30

Mark Part name Description
32(C) Common line Common terminal for the 3-way valve for DHW tank.
33(L) 3-way valve for DHW tank
The air to water heat pump can be used to heat DHW. This output will be on when DHW is
activated.
34(N) N common Neutral terminal common for 3-way valve of DHW tank and outputs 1 and 2.
35(L)
Output 1 (3-way valve for swimming
pool) (*)
The air to water heat pump can be use to heat swimming pool. This output will be ON when
swimming pool is activated.
36(L) Output 2 (Water pump 3 (WP3)) (*) When there is a hydraulic separator or buffer tank, additional water pump (WP3) is needed.
37
Output 3 (Auxiliary boiler or electric
heater) (*)
The boiler can be used to alternate with the heat pump when the heat pump cannot achieve the
required temperature by itself.
A water electric heater (as accessory) can be used to provide the additional heating required on
the coldest days of the year.
38
39
Output 4 (Solar) (*) Output for solar combination with Domestic Hot Water Tank.
40
 N O T E
(*): Inputs and outputs explained in the table are the factory-set options. By means of the unit controller, some other inputs and outputs functions can
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 SETTING OF DIP SWITCHES AND RSW SWITCHES
5.6.1 Location of DIP switches and rotary switches
5.6.2 Function of DIP switches and rotary switches
 N O T E
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• “Not used” means that the pin must not be changed. A malfunction might occur if changed.
 C A U T I O N
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supply OFF, the contents of the setting are invalid.
ELECTRICAL AND CONTROL SETTINGS
PMML0340B rev.1 - 03/201620