Hitachi YUTAKI S COMBI Series Installation And Operation Manual

23
PMEN0645 rev.0 - 04/2023
5
WATER PIPING
REFRIGERANT PIPING
Model
Pipe adapter
Gas pipe Liquid pipe
1.5HP - -
2HP - -
2.5HP Ø12.7→Ø15.88 (x2) Ø6.35→Ø9.52 (x2)
3.0HP Ø12.7→Ø15.88 (x2) Ø6.35→Ø9.52 (x2)
5.2.3 Refrigerant charge
5.2.3.1 Refrigerant charge amount
The R32 refrigerant is factory charged in the outdoor unit with a refrigerant charge amount for 10 m
of piping length between outdoor and indoor unit.
5.2.3.2 Refrigerant charge before shipment (W
0
(kg))
Outdoor unit model W
0
(kg)
RAS-1.5WHVRP2E 1.1
RAS-2WHVRP2E 1.1
RAS-2.5WHVRP2E 1.3
RAS-3WHVRP2E 1.3
5.3 Water piping
5.3.1 Water piping size
(inches)
Model
Space heang connecon DHW connecon
Inlet
connecon
Outlet
connecon
Shut-o valves
Inlet
connecon
Outlet
connecon
Pressure and
temperature
relief valve (*)
(1.5-3.0)HP
G 1”
(female)
G 1”
(female)
G 1” (male) -
G 1” (male)
G 3/4”
(male)
G 3/4”
(male)
Ø15 mm
(*): Only for models for UK market

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