Daikin EPRA18DAV3 Installer's Reference Manual page 80

7 | Piping installation
Installer reference guide
80
a
b
a Water OUT (screw connection, male, 1")
b Water IN (screw connection, male, 1")
c Shut-off valve with integrated filter (delivered as accessory)(2× screw connection,
female, 1")
d Thread sealant
2 Connect the field piping to the shut-off valve.
3 Connect the field piping to the outdoor unit water outlet.
NOTICE
About the shut-off valve with integrated filter (delivered as accessory):
▪
The installation of the valve at the water inlet is mandatory.
▪
Mind the flow direction of the valve.
NOTICE
Install air purge valves at all local high points.
Indoor unit
1 Connect the O-rings and shut-off valves to the outdoor unit water connection
pipes of the indoor unit.
2 Connect the outdoor unit field piping to the shut-off valves.
3 Connect the O-rings and shut-off valves to the space heating/cooling water
pipes of the indoor unit.
4 Connect the space heating/cooling field piping of both zones to the shut-off
valves.
5 Connect the domestic hot water in and out pipes to the indoor unit.
c1
c2
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")
b
c
2
1
d
a2 a1
b2 b1
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1B – 2020.12