Hitachi YUTAKI S COMBI Series Installation And Operation Manual

40
PMEN0645 rev.0 - 04/2023
6
SETTINGOFDIPSWITCHESANDRSWSWITCHES
ELECTRICAL AND CONTROL SETTINGS
DSW4
Unit and installaon pipes anfreeze protecon
8
7
Standard / ECO water pump operaon
8
7
Electric heater or boiler emergency mode
8
7
DHW tank’s heater operaon
8
7
DHW 3‑way valve forced ON
8
7
! CAUTION
• Never turn all DSW4 dip switch pins ON. If this happens, the soware of the unit will be
removed.
• Never acvate “Heater Forced OFF” and “Electric heater or boiler emergency mode” at the same
me.
◆ DSW5: Addional seng 3
In the cases where the outdoor unit is installed into a locaon where its own outdoor ambient
temperature sensor can not give a suitable temperature measurement to the system, it is available
the 2nd outdoor ambient temperature sensor as accessory. By means of DSW1 & 2 seng, the
preferable sensor for each circuit can be selected.
DSW5
Factory seng
Outdoor unit sensor for circuits 1 and 2
Outdoor unit sensor for circuit 1; Auxiliary sensor for circuit 2
Auxiliary sensor for circuit 1; Outdoor unit sensor for circuit 2
Auxiliary sensor instead of outdoor unit sensor for both circuits
Use the maximum temperature value between T
wo3
(boiler / heater thermistor) and T
wo
(water outlet thermistor) for water control

Hitachi YUTAKI S COMBI Series Specifications

General

Type	Air-to-Water Heat Pump
Energy Efficiency Class (Cooling)	A++
Refrigerant	R32
Operating Temperature Range (Heating)	-20°C to 35°C
Energy Efficiency Class (Heating)	A+++
Integrated DHW Tank	190 liters
Dimensions (Indoor Unit)	Varies by model
Dimensions (Outdoor Unit)	Varies by model
Weight (Indoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Operating Temperature Range (Cooling)	+10°C to +46°C