7 Disposal
Operation manual
12
08DA
ROTEX HPSU Bi-Bloc Ultra
4P495263-1C – 2018.11
6.5
Symptom: The system is making
gurgling noises after
commissioning
Possible cause
Corrective action
There is air in the system.
Purge air from the system.
(a)
Various malfunctions.
Check if
or
is displayed
on the home screen of the user
interface. See
help text in case of a
malfunction" on page 11
for more
information about the
malfunction.
(a)
We recommend to purge air with the unit's air purge
function (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.
7
Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
8
Glossary
DHW = Domestic hot water
Hot water used, in any type of building, for domestic
purposes.
LWT = Leaving water temperature
Water temperature at the water outlet of the heat pump.
