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Piping installation
Installer reference guide
90
EPRA08~W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
NOTICE
When circulation in each or certain space heating loops is controlled by remotely
controlled valves, it is important that the minimum flow rate is guaranteed, even if all
valves are closed. In case the minimum flow rate cannot be reached, a flow error 7H
will be generated (no heating or operation).
See the recommended procedure as described in
236].
8.2 Connecting water piping
8.2.1 About connecting the water piping
Before connecting the water piping
Make sure the outdoor and indoor unit are mounted.
Typical workflow
Connecting the water piping typically consists of the following stages:
1
Connecting the water piping to the outdoor unit.
2
Connecting the water piping to the indoor unit.
3
Connecting the recirculation piping.
4
Install pressure vessel at special connection.
5
Connecting the drain hose to the drain.
6
Filling the water circuit.
7
Filling the heat exchanger coils inside the storage tank.
8
Filling the storage tank.
9
Insulating the water piping.
8.2.2 Precautions when connecting the water piping
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
"2 General safety precautions"
▪
8.2.3 To connect the water piping
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.
Outdoor unit
1
Connect the shut-off valve (with integrated filter) to the outdoor unit water
inlet, using thread sealant.
Summary of Contents for EPRA10EAV3
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