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Troubleshooting
Installer reference guide
252
EPRA08~W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
Possible cause
Corrective action
Incorrect hydraulic balance.
To be performed by the installer:
1
Perform hydraulic balancing to
assure that the flow is correctly
distributed between the emitters.
2
If hydraulic balancing is not
sufficient,
change
the
pump
limitation settings ([9-0D] and [9-0E]
if applicable).
Various malfunctions.
Check if or
is displayed on the
home screen of the user interface. See
"14.4.1 To display the help text in case
of a malfunction"
information about the malfunction.
(a)
We recommend to purge air with the air purge function of the unit (to be performed by
the installer). If you purge air from the heat emitters or collectors, mind the following:
WARNING
Air purging heat emitters or collectors.
Before you purge air from heat emitters or
collectors, check if
or
is displayed on the home screen of the user interface.
▪
If not, you can purge air immediately.
▪
If yes, make sure that the room where you want to purge air is sufficiently
ventilated.
Reason:
Refrigerant might leak into the water circuit, and
subsequently into the room when you purge air from the heat emitters or
collectors.
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