krom schroeder E8 - PUMP MODE (Pump Operating Mode)

Part 2: Overview of display values and settings Expert area
47
The heat generator controller's hot water priority function
can be used.
! If an optional storage tank flow temperature sensor
and lower storage tank sensor is connected, the
function for storage tank charging via an external
heat exchanger with storage tank through-charging
capability is activated automatically.
04 => Return flow temperature increase via mixer motor
The heating circuit flow sensor is used as a heat generator
return flow sensor. The mixer motor controls to the heating
circuit set value for 24 hours [MIN T-FLOW].
Installation tip: Mixer motor OPEN => heat generator 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 heat generator (heat
generator pump).
PUMP MODE (pump operating mode)
The circulation pumps are switched off if heating is not re-
quired. The mixer motors are closed at the same time =>
"The heating circuit is switched off".
(Switch on with 1 K hysteresis)
The setting affects the weather-controlled deactivation.
Additionally, the thermostat-controlled deactivation takes
effect if room regulation is activated (ROOM INFL > 0).
 Room temperature > room set value + 1 K
00 => Standard circulation pump control
Heating time:
 Outside temperature > room set value + 1 K
Reduction time:
ROOM INFL =0:
 The switch-off occurs during the transition to reduction
operation.
 Restart: 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
OFF: Outside temperature > set heating limit day +1 K
ON: Outside temperature < set heating limit day
Reduction period
OFF: Outside temperature > set heating limit night +1 K
ON: Outside temperature < set heating limit night
02 => Pump switching in accordance with heating program
Heating time:
 Pump is ON; Heat circuit is enabled
Reduction time:
 Pump is OFF; Heat circuit is blocked
03 => Continuous operation
The runs continuously for 24 hrs.! The heating circuit is
permanently enabled.