Water piping size
YUTAKI S
(inches)
Model
Space heating pipes connection
Inlet
connection
Outlet
connection
Shut-off valves
(2.0-3.0)HP G 1” (female) G 1” (female)
G 1” (male) -
G 1” (male)
(4.0-10.0)HP
G 1-1/4”
(female)
G 1-1/4”
(female)
G 1-1/4” (male) -
G 1-1/4” (male)
YUTAKI S COMBI
(inches)
Model
Space heating connection DHW connection Solar connection (*)
Inlet
connection
Outlet
connection
Shut-off
valves
Inlet
connection
Outlet
connection
Pression and
temperature
relief valve (**)
Inlet
connection
Outlet
connection
(2.0-3.0)HP
G 1”
(female)
G 1”
(female)
G 1” (male) -
G 1” (male)
G 3/4”
(female)
G 3/4”
(female)
Ø15 mm
G 1/2”
(female)
G 1/2”
(female)
(4.0-6.0)HP
G 1-1/4”
(female)
G 1-1/4”
(female)
G 1-1/4” (male) -
G 1-1/4” (male)
G 3/4”
(female)
G 3/4”
(female)
Ø15 mm
G 1/2”
(female)
G 1/2”
(female)
(*): Only for models for solar combination.
(**): Only for models for UK market
YUTAKI S80 indoor unit
Type 1: Version for operation in DHW but with a remote tank (RWH-(4.0-6.0)(V)NFE)
(inches)
Model
Space heating connection
Inlet
connection
Outlet
connection
Shut-off valves
(4.0-6.0)HP
G 1-1/4”
(female)
G 1-1/4”
(female)
G 1-1/4” (male) -
G 1-1/4” (male)
Type 2: Version for operation with an HITACHI DHW tank (RWH-(4.0-6.0)(V)NFWE)
(inches)
Model
Space heating connection Heating coil connection
Inlet
connection
Outlet
connection
Shut-off valves
Inlet connection
(3-way valve)
Outlet connection
(T-branch)
(4.0-6.0)HP
G 1-1/4”
(female)
G 1-1/4”
(female)
G 1-1/4” (male) -
G 1-1/4” (male)
G 1”
(female)
G 1”
(female)
T-branch
(Heating coil outlet connection)
3-way valve
(Heating coil inlet connection)
Space heating inlet
(indoor unit water outlet)
Space heating outlet
(indoor unit water inlet)
REFRIGERANT AND WATER PIPING
PMML0335A rev.1 - 04/2016
88
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