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Piping installation
Installer reference guide
94
d Expansion vessel of 18 l – 3/4" Male BSP
e Tundish 15 mm inlet, 22 mm outlet
1 Pre-assemble the adaptor and expansion vessel so that the expansion vessel is
ready for installation.
2 Mount the expansion vessel to the wall.
1
3 Fit the T-piece (part of the kit) to the domestic hot water cold water IN pipe of
the unit.
4 Connect the pressure reducing valve/pressure relief valve combination (part
of the kit) to the T-piece with a length of copper tube Ø22 mm (field supply).
5 Connect the expansion vessel to the T-piece with a length of copper tube
Ø22 mm (field supply).
6 Connect the pressure reducing valve/pressure relief valve combination to the
water mains inlet.
7 Install the tundish (part of the kit) in a vertical position within a maximum of
600 mm away from the pressure reducing valve/pressure relief valve
combination.
WARNING
Install the tundish away from any electrical device. Possible consequence: Electrical
shock or fire.
NOTICE
To ensure a free water flow through the discharge pipe, manually operate the
pressure relief valve by turning its knob left.
8 Using the accessory brass compression coupler (see
accessories from the domestic hot water tank
accessory pipe (see
4
unit" [
26]) to the pipe connection located at the back of the unit. This pipe
starts at the pressure relief valve of the domestic hot water tank.
2
"4.3.2 To remove the accessories from the indoor
"4.4.1 To remove the
4
kit" [
27]), connect the
EPRA14~18DAV3+W1 + ETVH16SU18+23EA6V
Daikin Altherma 3 H HT F
4P644738-1 – 2021.02
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