ENGLISH
5.3 WATER PIPING
5.3.1 Water piping length
Consider the following guidelines when designing the water circuit.
Item
YUTAKI S
YUTAKI S COMBI
Maximum water piping length between indoor unit and DHW tank
10 m
--
Maximum water piping length between indoor unit and 3-way valve
3 m
--
Maximum water piping length between 3-way valve and DHW tank
10 m
--
5.3.2 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
Inlet connection
Outlet connection
Shut-off valves
Inlet connection
Outlet connection
Pressure and
temperature relief
valve (*)
(2.0-3.0)HP
G 1”
(female)
G 1”
(female)
G 1” (male) -
G 1” (male)
G 3/4”
(male)
G 3/4”
(male)
Ø15 mm
(4.0-6.0)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
REFRIGERANT AND WATER PIPING
PMML0575 rev.1 - 09/2021
27
