9. Refrigerant and water piping
TCGB0075 rev.0 - 11/2012
104
9.2.2 Water piping
Water pipes connection
Space heating water connection of indoor unit are located where it is visible in the following images:
Space heating
inlet connection
(indoor unit water
outlet)
Plastic plug
3-way valve
T-branch
Space heating
outlet connection
(indoor unit
water inlet)
Plastic plug
3-way valve connection
for space heating intlet
(Left side view)
T-branch connection for
Space heating outlet
Piping size
(mm (inches))
Space heating
3-way valve connection
T-branch connection
RWH-(4.0-6.0)FS(V)NFE
Ø25.4 (1”)
Ø25.4 (1”)
Space heating pipes (factory supplied)
Indoor unit is provided with two flexible water pipes (space heating pipes) for connection between the space heating and
the indoor unit (to the T-branch and to the 3-way valve).
Item
Connection
1035mm
1385mm
Ø25.4
(1”)
Space heating outlet pipe (Wi-
thout elbow)
For the connection between the
T-branch water inlet and the
space heating outlet.
Space heating inlet pipe (With
elbow)
For the connection between the
3-way valve water outlet and the
space heating inlet.
Indoor unit
factory supplied
N O T E
Please, refer to the
Installation and operation manual of the Domestic hot water tank of YUTAKI S80
for the detai-
led information.