20 |WPL 33 www.stiebel-eltron.com
INSTALLATION
Commissioning
13.3 Initial start-up
13.3.1 DIP switch (WP-Typ) on the IWS
(integral heat pump control unit)
Open the control panel.
The IWS is located on the r.h. side.
BA
BA
26_03_01_0921_
3
4
1
2
1 LEDs
2 DIP switch (WP-Typ)
3 Reset button
4 DIP switch (BA)
DIP switch (WP-Typ)
With the DIP switch (WP-Typ), you can set the IWS to suit the
relevant heat pump type.
Factory setting:
Compressor mode with electric emergency/booster heater
WP - Typ
ON
1 2 3 4
D0000057056
Check whether the DIP switch is set correctly.
Compressor mode with external second heat generator
!
Material losses
In this case, do not connect the electric emergency/boost-
er heater.
If the appliance is operated in dual mode with an external second
heat source or as a module with a further WPL, set the DIP switch
as follows:
WP - Typ
ON
1 2 3 4
D0000057057
DIP switch (BA)
These DIP switches have no function.
13.4 Settings
13.4.1 Heating curve adjustment
The efficiency of a heat pump decreases as the flow temperature
rises. The heating curve should therefore be adjusted with care.
Heating curves that are set too high cause the zone valves and
thermostatic valves to close, which may lead to the minimum flow
rate required for the heating circuit not being achieved.
Observe the WPM operating and installation instructions.
The following steps will help you to adjust the heating curve cor-
rectly:
- Fully open thermostatic or zone valves in a lead room (e.g.
living room and bathroom).
We do not recommend installing thermostatic or zone valves
in the lead room. Control the temperature for these rooms
via remote control.
- At different outside temperatures (e.g. –10°C and +10°C),
adjust the heating curve so the required temperature is set in
the lead room.
Standard values to begin with:
Parameter
Underfloor heating system
Radiator heating system
Heating curve 0.4 0.8
Control response time
10 10
Comfort temperature
20°C 20°C
If the room temperature is not high enough in spring and autumn
(approx. 10 °C outside temperature), raise the "COMFORT TEM-
PERATURE" parameter in the heat pump manager menu under
"SETTINGS / HEATING / HEATING CIRCUIT".
Note
If no remote control is installed, raising the "COMFORT
TEMPERATURE" parameter leads to a parallel offset of
the heating curve.
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