Part 2: Overview of display values and settings
Expert
area
49
04 => Return flow temperature increase via mixer motor
The heating circuit flow sensor is used as a boiler return
flow sensor. The mixer motor controls to the heating circuit
set value for 24 hours [MIN T-FLOW].
Installation tip:
Mixer motor OPEN => boiler flow is fed
into the return (=> return flow temperature increase)
Mixer motor CLOSED => heating circuit return is passed
through. When the mixer motor is open it must be ensured
that there is circulation through the boiler (boiler pump).
PUMP MODE
(pump operating mode)
The circulation pumps are switched off if heating is not
required. The mixer motors are closed at the same time =>
"The heating circuit is switched off".
(Switch on with 1K hysteresis)
This adjustment concerns the weather dependent shut-
down. If room temperature regulation is enabled (ROOM
INFL > 0) the "thermostat function" takes effect in addition.
•
Room temperature > room set value + 1K
00 => Standard circulation pump control
Heating time:
•
Outside temperature > room set value + 1K
Reduction period:
ROOM INFL = 0
•
The switch-off occurs during the transition to reduction
operation.
•
Switch on with: Room temperature < room set value
The pump runs continuously after switching on.
ROOM INFL ="--":
•
Flow temperature setting < 20°C.
01 => Pump switching in accordance with heating limits
Heating time:
•
Outside temperature < daytime heating limit s
1K
Reduction period:
•
Outside temperature < night-time heating limit s
1K
02 => Pump switching in accordance with heating program
Heating time:
•
Pump is ON; Heat circuit is enabled
Reduction period:
•
Pump is OFF; Heat circuit is blocked
03 => Continuous operation
The runs continuously for 24 hrs.! The heating circuit is
permanently enabled.
MIXER OPEN
(open mixer dynamic)
Speed setting at which the mixer motor opens when a
control difference occurs. The control difference at which
the mixer motor opens without interruption is entered in
Kelvin.
!
Small values cause the mixer motor to adjust quickly
and can lead to oscillation.
