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appliance shutdown
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13.4 Settings
13.4.1 Heating curve adjustment
The efficiency of a heat pump decreases as the flow temperature
rises. Adjust the heating curve carefully. Heating curves that are
set too high cause the zone valves or thermostatic valves to close,
which may lead to the minimum flow rate required for the heating
circuit not being achieved.
f
f
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 that 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
5
15
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
TEMPERATUR" parameter will lead to a parallel offset of
the heating curve.
If the room temperature is too low when outside temperatures are
also low, increase the "HEATING CURVE" parameter.
If the parameter "HEATING CURVE" has been raised, in the case of
high outside temperatures, adjust the zone valve or thermostatic
valve in the lead room to the required temperature.
Note
Never reduce the temperature in the entire building by
closing all zone valves or thermostatic valves, but instead
do this by using the setback programs.
When everything has been implemented correctly, the system
can be heated to its maximum operating temperature and vented
once again.
!
Material losses
For underfloor heating systems, observe the maximum
permissible system temperature.
13.4.2 Other settings
f
f
For operation with and without a buffer cylinder, see chapter
"Operation / Menu structure / Menu SETTINGS / STANDARD
SETTING / BUFFER OPERATION" in the WPM operating and
installation instructions.
Using the heat-up program
If you use the heat-up program, make the following settings on
the WPM:
f
f
Initially set the parameter "DUAL MODE TEMP HZG" to 30 °C.
f
f
Set the "LOWER APP LIMIT HZG" parameter to 30 °C.
Note
Following the heat-up process, return the "DUAL MODE
TEMP HZG" and "LOWER APP LIMIT HZG" parameters to
their default values or to the system values.
14. Appliance shutdown
!
Material losses
Never interrupt the heat pump power supply, even out-
side of the heating season. Otherwise, system frost pro-
tection is not guaranteed.
The heat pump manager automatically switches the heat
pump to summer or winter mode.
14.1 Standby mode
To take the appliance out of use, simply set the heat pump man-
ager to "Standby mode". This way, the safety functions that protect
the system remain enabled, e.g. frost protection.
14.2 Power interruption
If the system is to be isolated from the power supply permanently,
please observe the following:
!
Material losses
If the heat pump is completely switched off and there is a
risk of frost, drain the system on the water side.
