To Connect The Central Water Loop Piping - Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual

8 | Piping installation

8.2.3 To connect the central water loop piping

Installer reference guide
78
NOTICE
Do NOT use excessive force when connecting the field piping and make sure the
piping is aligned properly. Deformation of the piping can cause malfunctioning of the
unit.
b
a
a Central water loop circuit OUT (Ø28 mm)
b Central water loop circuit IN (Ø28 mm)
NOTICE
To facilitate service and maintenance, it is recommended to install shut-off valves as
close as possible to the inlet and outlet of the unit.
Example of piping layout
The following diagram is a proposed piping layout for the indoor piping between
the central water loop and the unit.
a b
a Central water loop circuit IN
b Central water loop circuit OUT
c Manometer
d Air purge valve
e Filter
NOTICE
The central water loop MUST have an expansion vessel and a safety valve with a
pressure rating of maximum 16 bar. The specifications and exact location depend on
the design of the total system.
c
e
d
d
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04