Specification

Temperature control mode for AUTO
ADAPT
(BA, BXA) variants
The regulation of the COMFORT AUTO
ADAPT
models is
based on temperature control. The operating range of the
pump is kept within a calculated temperature range. This
means that the pump operates in an average temperature
area providing the maximum comfort and saves energy at
the same time.
water
o
C
T
water
o
C
T
1
2
TM060947
COMFORT in heat application
Pos. Description
1
T
supply
2
T
return
With temperature control, the maximum temperature
measured at both sensors is stored and the pump
automatically calculates the gap between T
stop
and T
start
.
The pump switches on when one of the sensors detects a
lower temperature than T
start
. The pump switches off
when the T
stop
temperature is exceeded on both sensors.
1
4
3
2
TM060948
Temperature control mode
Pos. Description
1
T
supply
2 Time
3
T
stop
4
T
start
Continuous 100 % mode
The pump is running continuously at full speed without
any control.
Temperature control mode for
temperature control (T) variants
The COMFORT T PM variant has an integrated
temperature control mode that controls the circulation.
The temperature control mode switches the pump off
when a preset temperature limit T
off
is reached, and back
on when a preset temperature limit T
on
is reached.
These temperature limits are set automatically and
dynamically. Manual settings are not needed.
After the first installation or after a power cut-off, the pump
carries out an identification run for 10 minutes to verify the
system temperature. Based on the result, T
on
and T
off
are
calculated. The identification run is repeated every 12
hours to avoid a wrong temperature setting, for example
during night setback of the water heater.
• T
on
= T
sys
- 14 °C (57 °F)
• T
off
= T
sys
- 7 °C (44 °F)
COMFORT
3
9
Functions