8 | Piping installation
Installer reference guide
95
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
8.2.4 To connect the water piping for domestic hot water
a Pressure reducing valve/pressure relief valve combination. Water inlet and water
outlet 22mm connection, discharge piping connection 15mm
b Adaptor 22mm×3/4" Female BSP
c T-piece 22mm×22mm×22mm
d Expansion vessel of 18l – 3/4" Male BSP
e Tundish 15mm inlet, 22mm 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.