67
1101.0 Secondary pump min. speed for DHW heating
Only change the factory setting if the minimum flow
rate for DHW heating is not reached: See chapter
"Flow rate control with Hydro AutoControl".
Minimum speed of the internal secondary pump for
DHW heating
1101.1 Secondary pump max. speed for DHW heating
Only change the factory setting if the minimum flow
rate for DHW heating is not reached: See chapter
"Flow rate control with Hydro AutoControl".
Maximum speed of the internal secondary pump for
DHW heating
1101.2 Secondary pump set speed for DHW heating
Only change the factory setting if the minimum flow
rate for DHW heating is not reached: See chapter
"Flow rate control with Hydro AutoControl".
Set speed of the internal secondary pump for DHW
heating
2257 Offset for cylinder heating
2257.0 Flow temperature boost during cylinder heating with target temperature
When DHW is heated with loading cylinders, the flow
temperature in comfort mode (target temperature con-
trol) is regulated to the value in parameter 3068.0 plus
the value set here.
3029 Operating mode for DHW heating
3029.0 Operating mode for DHW heating
For DHW heating, 2 operating modes can be set; effi-
ciency mode and comfort mode.
DHW heating in efficiency mode
Heat pumps with loading cylinder:
■
DHW is heated with a low temperature spread.
■
DHW heating is switched on via the cylinder temper-
ature sensor as set in parameter 3069.0.
DHW heating in comfort mode
Heat pumps with loading cylinder:
When comfort mode is switched on, DHW is heated at
the maximum output of the heat pump to the target
temperature set in parameter 3068.0 plus the flow tem-
perature boost in parameter 2257.0. If at the same
time the flow rate of DHW drawn off exceeds the
threshold in parameter 3066.0 within the period in
parameter 3066.1, the instantaneous heating water
heater is additionally switched on for DHW heating.
DHW heating is switched on if the temperature at the
centre cylinder temperature sensor (DHW2) falls below
the set cylinder temperature by the value of the start
hysteresis. Once the value set in parameter 3068.0 is
reached, comfort mode is switched off. DHW is then
heated in efficiency mode until the set cylinder temper-
ature is reached. The instantaneous heating water
heater is switched off.
DHW parameter group
1101 Speed settings of the secondary pump for DHW heating
6218234
Parameter
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