Daikin Altherma 3 R F, Installer'S Reference Manual

Page: 114 / 312

8 | Piping installation
Installer reference guide
114
ERLA11~W1 + EBVH16SU23DJ
Daikin Altherma 3 R F
4P655196-1 – 2021.09
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 2
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 Use the quick fixture to connect the discharge pipe (see "4.3.2 To remove the
accessories from the indoor unit" [
4
25]) to the pipe connection in the hole
located at the back of the unit, and fix the pipe to the rear plate with the cable
tie + clip. This pipe starts at the pressure relief valve of the domestic hot water
tank. After connecting the discharge pipe, cover the hole with the antisweat
sticker.