Symptom: The System Is Making Gurgling Noises After Commissioning - Daikin EWAA006D2V3P-H User Reference Manual

8 | Troubleshooting

8.5 Symptom: The system is making gurgling noises after commissioning

User reference guide
54
Possible cause
Unit is damaged.
INFORMATION
When the backup heater takes over the heat load, electricity consumption will be
considerably higher.
Possible cause
There is air in the system.
Incorrect hydraulic balance.
Various malfunctions.
(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
▪
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.
See "8.1 To display the help text in case
of a malfunction" [
Purge air from the system.
To be performed by the installer:
1 Perform hydraulic balancing to
assure that the flow is correctly
distributed between the emitters.
2 If hydraulic
sufficient,
limitation settings ([9-0D] and [9-0E]
if applicable).
Check if
home screen of the user interface. See
"8.1 To display the help text in case of a
malfunction" [
information about the malfunction.
or is displayed on the home screen of the user interface.
Corrective action
4
52].
Corrective action
(a)
balancing is
change the
or is displayed on the
4
52] for more
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688016-1A – 2022.09
not
pump