Operation 5
0020151761_04 aroTHERM Operating instructions
15
5.2 Operating noises
"Hhmmm..." (*)
"Ttsheeh...!"
"Eeee..."
“Clink!"
"Chug, chug,
chug,..."
"Whirr..." (*)
1
2
3
4
5
6
*
Permanent oper-
ating noises
The noises listed do not constitute a fault
with the heat pump.
In various operating modes, the noises
come from the heat pump (Start, Thawing,
Stop).
5.3 Activating frost protection
▶
To prevent the product from freezing,
ensure that the product is switched on.
5.4 Setting the target feed
temperature in heating mode
The actual target flow temperature is auto-
matically determined by the system con-
troller (you can find further information
about this in the operating instructions for
the system controller).
5.5 Setting a room thermostat or
weather compensator
2
1
▶
Set the room thermostat or the weather
compensator
(1)
and thermostatic radi-
ator valves
(2)
as specified in the relev-
ant instructions for these accessories.
5.6 Checks and maintenance
carried out by the operator
The product switches off if the filling pres-
sure in the heating installation falls below
0.05 MPa (0.5 bar).
▶
Top up with water.
5.6.1 Cleaning the product
1. Switch the product off before you clean
it.
2. Clean the product's casing with a
damp cloth and a little soap. Never
use scouring or cleaning agents
which could damage the casing or the
operator control elements.
