OPERATION
Settings
6
| WPL ACS classic www.stiebel-eltron.com
4. Settings
The system is operated exclusively with the WPM heat pump man-
ager. The heat pump manager is installed in the products required
as accessories (see chapter “Installation / Appliance description /
Accessories”).
f
f
Observe the heat pump manager operating and installation
instructions.
5. Maintenance and care
!
Material losses
Maintenance work, such as checking the electrical safety,
may only be carried out by a qualified contractor.
A damp cloth is sufficient for cleaning all plastic and sheet metal
parts. Never use abrasive or corrosive cleaning agents.
f
f
Protect the appliance from dust and dirt ingress during
building work.
!
Material losses
Keep the air discharge and intake apertures free from
snow and leaves.
We recommend regular inspection (to establish the current con-
dition of the system), and maintenance by a qualified contractor
if required (to return the system to its original condition).
6. Troubleshooting
Fault
Cause
Remedy
There is no hot
water or the
heating system
stays cold.
No power at the appli-
ance.
Check the fuses/MCBs in your
fuse box/distribution panel. Re-
place the fuses/reset the MCBs
if required. Notify your qualified
contractor if the fuses/MCBs
blow/trip again.
Condensate
collects on the
outside of the
appliance and on
the air grille.
The heat pump is extract-
ing heat from the outdoor
air to heat the building.
This can cause the hu-
midity in the outdoor air
to accumulate as dew or
frost on the cooled heat
pump casing. This is not
a defect.
The fan runs
when the
compressor is
switched off.
At outside temperatures
below 10 °C, the fan is
regularly started at the
lowest speed when the
compressor is idle. This
prevents the evaporator
and fan from freezing
or icing up due to water
draining off. At tempera-
tures above the freezing
point, the time between
two defrost cycles is in-
creased, thereby improv-
ing overall efficiency.
The appliance
produces rhyth-
mic scraping or
grinding noises.
Ice has formed on the air
grille, on the fan blades
or in the air routing.
Call your qualified contractor
(see chapter “Installation / Trou-
bleshooting / Fan noises”).
If you cannot remedy the fault, notify your qualified contractor. To
facilitate and speed up your request, provide the number from the
type plate. The type plate is located at the front top, on the right
or left hand side of the casing.
Sample type plate
Montageanweisung beachten! Dichtheit geprüft!
Made in Germany
*xxxxxxxxxxxxxxxxxx
*
26
�0
3�
01
�1
73
6
1
1 Number on the type plate
