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Piping installation
Installer reference guide
91
EPRA14~W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1A – 2022.07
NOTICE
If glycol was added to the water circuit, and the temperature of the water circuit is
low, the flow rate will NOT be displayed on the user interface. In this case, the
minimum flow rate can be checked by way of the pump test (check that the user
interface does NOT display error 7H).
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
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.
Summary of Contents for ETSX16P30EF
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