www.stiebel-eltron.com WPL 10 | 11
INSTALLATION
Installation
10.10 Condensate drain
At the factory, a hose for draining condensate is fitted
to the defrost pan, which terminates near the knock-out
in the bottom plate to the right of the refrigeration unit.
You can route the condensate hose from the appliance through
openings in the floor plate and frame, to the right or to the front.
D0000052105
Ensure the condensate drain hose is not kinked.
Route the hose with a continuous fall.
Use a suitable condensate pump if there is insufficient fall.
Observe the building characteristics.
If using a condensate pump, ensure that it delivers at least
6 l/min. Set the heat pump approximately 100 mm higher if
condensate pump PK10 is used for draining the condensate.
Heating curve adjustment
Adjust the heating curve carefully, as the heat pump efficiency will
be reduced with an increasing flow temperature. Heating curves
which are set too high, lead to the zone and thermostatic valves
closing, which may lead to the minimum flow rate required for
the heat pump not being achieved.
Procedure for setting the correct heating curve:
Fully open the thermostatic valve(s) or zone valve(s) in the lead
room, e.g. in the living room or bathroom (remove the head of
thermostatic valves) and set the heating curve at different outside
temperatures (e.g. – 10 °C and + 10 °C), so that the required tem-
perature is achieved in the lead room. The thermostatic valve(s)
or zone valve(s) in the lead room should always be fully open (we
recommend that the heating circuit of the lead room is installed
without thermostatic or zone valves and that individual room con-
trol is implemented using a remote control unit).
Standard values to begin with:
Parameter Underfloor
heating
system
Radiator heating system
Heating curve 0.4 0.8
Control response
time
5 15
Room temperature 20 °C 20 °C
Adjust the heating curve as follows:
Increase the room temperature parameter, if the room temper-
ature in spring and autumn is too low (approx. 10 °C outside
temperature). Providing no remote control is installed, this will
lead to a parallel offset of the heating curve. Increase the heating
curve parameter, if the room temperature is not high enough
when outside temperatures are low, then adjust the zone valve
or thermostatic valve to the required temperature.
Never reduce the temperature in the entire building by closing all
zone or thermostatic valves, but by using the setback programs.
10.11 Second heat generator
For dual mode systems, always connect the heat pump into the
return of the second heat generator (e.g. oil boiler).
10.12 Removing the casing parts
The side panels, the front and back panels are hooked into the
heat pump frame and are secured at the centre (bottom) of each
panel respectively with one quick-acting screw. After removing
the quick-acting screw, the casing panels can be pushed up and
removed.
On the WPL10IK3, only the lower casing panels can be removed.
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