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Piping installation
Installer reference guide
89
E EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09
b1
b2
a1
a2
a1
Space heating/cooling – Water IN (screw connection, 1")
a2
Space heating/cooling – Water OUT (screw connection, 1")
b1
DHW – Cold water IN (screw connection, 3/4")
b2
DHW – Hot water OUT (screw connection, 3/4")
3
Install the following components (field supply) on the cold water inlet of the
DHW tank:
g
c
b1
b2
d
a
*e
*f
a
a
Shut-off valve (recommended)
b1
DHW – Cold water IN (screw connection, 3/4")
b2
DHW – Hot water OUT (screw connection, 3/4")
c
Non-return valve (recommended)
d
Pressure reducing valve (recommended)
*e
Pressure relief valve (max. 10 bar (=1.0 MPa))(mandatory)
*f
Tundish (mandatory)
g
Expansion vessel (recommended)
NOTICE
▪
It is recommended to install shut-off valves on the space heating/cooling water in
and out connections, as well as on the domestic cold water in and domestic hot
water out connections. These shut-off valves are field supplied.
▪
However, make sure there is no valve between the pressure relief valve (field
supply) and the DHW tank.
NOTICE
To avoid damage to the surroundings in case of water leakage, it is recommended to
close the domestic cold water inlet shut‑off valves during periods of absence.
NOTICE
A pressure relief valve (field supply) with an opening pressure of maximum 10 bar
(=1 MPa) must be installed on the domestic cold water inlet connection in
accordance with the applicable legislation.
