Hitachi YUTAKI RWM-2R1E Installation & Operation Manual page 71

REFRIGERANT AND WATER PIPING
Type 2: Version for operation with an Hitachi DHW tank (RWH-(4.0-6.0)(V)NFWE)
Model
Inlet connection
G 1-1/4"
(4.0-6.0)HP
(female)
(Heating coil inlet connection)
YUTAKI S80 Domestic hot water tank accessory (DHWS(200/260)S-2.7H2E(-W))
Model
DHWS(200/260)S-2.7H2E(-W)
Heating coil pipes (Factory-supplied with the DHW tank accessory (DHWS(200/260)S-2.7H2E(-W)))
The domestic hot water tank accessory for combination with YUTAKI S80 indoor unit is factory-supplied with two flexible water
pipes for the connection between the indoor unit and the heating coil of the domestic hot water tank, when the DHW tank is installed
integrated above the indoor unit.
(1")
57 PMML0575 rev.2 - 03/2022
Space heating connection
Outlet
Shut-off valves
connection
G 1-1/4"
(female)
3-way valve
Heating coil connection
Inlet connection
G 1" (male)
Heating coil inlet
connection
FRONT SIDE
Item
200 mm
(1")
(x2)
Inlet connection
(3-way valve)
G 1-1/4" (male) -
G 1-1/4" (male) (female)
T-branch
(Heating coil outlet connection)
Outlet connection
G 1" (male)
DHW outlet
(Hot water from the tank)
(Cold water to the tank)
Heating coil outlet
connection
Heating coil pipes
One pipe for the connection between 3-way valve connection and heating
coil inlet connection of the tank.
The other one for the connection between T-branch connection and
heating coil outlet connection of the tank.
Heating coil connection
Outlet connection
(T-branch)
G 1"
(female)
Space heating outlet
(indoor unit water inlet)
Space heating inlet
(indoor unit water outlet)
DHW connection
Inlet connection Outlet connection
G 3/4" (male) G 3/4" (male)
DHW inlet
Connection
(inches)
G 1"
(inches)