STIEBEL ELTRON WPM - Page 30

COMMISSIONING
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Menu: SETTINGS
 COOLING CAPACITY
With this parameter, the maximum cooling capacity of the heat
pump is specified in kW.
 FLOW TEMP HYSTERESIS
If the sum of the flow temperature and the set hysteresis is greater
than the set temperature, the compressor is switched on.
 DYNAMICS ACTIVE
This parameter specifies how quickly the individual heat pumps
in a cascade start. The higher the set dynamics, the slower the
downstream heat pumps start up.
Dynamics for brine/water heat pump
- Dynamic 0
The compressor starts at the same time as the source pump.
- Dynamic 1
If the source pump has been running for 10minutes and the
current flow temperature is higher than the set flow temper-
ature with a hysteresis of 0.5K, the compressor starts.
- Dynamics 10
If the source pump has been running for 30minutes and the
current flow temperature is higher than the set flow temper-
ature with a hysteresis of 2K, the compressor starts.
Note
With the other available values (2 to 9), the hysteresis is
interpolated correspondingly.
Dynamics with air/water heat pumps
- Dynamic 1
If the first compressor has been running for 10minutes and
the current flow temperature is higher than the set flow
temperature with a hysteresis of 0.5K, the next downstream
heat pump starts.
- Dynamics 10
If the first compressor has been running for 30minutes and
the current flow temperature is higher than the set flow tem-
perature with a hysteresis of 2K, the next downstream heat
pump starts.
Note
With the other available values (2 to 9), the hysteresis is
interpolated correspondingly.
 DYNAMICS PASSIVE
Dynamics with brine/water heat pumps
This parameter specifies how quickly the individual heat pumps
in a cascade start. The higher the set dynamics, the slower the
downstream heat pumps start up.
- Dynamic 1
After the controller output X2.13 has been switched, the
source and buffer charging pumps start in sequence, each
after a delay of one minute.
- Dynamic 10
After the controller output X2.13 has been switched, the
source and buffer charging pumps start in sequence, each
after a delay of five minutes.
Note
With the other available values (2 to 9), the hysteresis is
interpolated correspondingly.
 ACTIVE COOLING / PASSIVE COOLING
Passive cooling is possible only with brine/water heat pumps.
 AREA COOLING / FAN COOLING
Area cooling
In the case of area cooling, the cooling of the building takes place
by means of the available underfloor or wall heating. In order to
monitor relative humidity, an FET remote control for the heating
circuit must be connected.
Fan cooling
In the case of fan cooling, the cooling of the building takes place
by means of fan convectors. In order to monitor room tempera-
ture, an FE7 or FET remote control for the heating circuit must
be connected.
 SET FLOW TEMPERATURE
Area cooling
The mixer regulates the flow temperature set here.
Fan cooling
When this temperature has been reached during cooling, the com-
pressor is switched off. Under passive cooling, the source and
buffer charging pumps are also switched off.
 FLOW TEMP HYSTERESIS
If the sum of the flow temperature and the set hysteresis is greater
than the set temperature, the compressor is switched on.
 SET ROOM TEMPERATURE
The heat pump cools the room down to the room temperature set
here minus a fixed hysteresis of 2K.
 DYNAMICS ACTIVE
See description above.
 DYNAMICS PASSIVE
See description above.