Hysteresis
Hysteresis of set point temperature.
Eco mode
The Energy Saving Mode switches the heating on when “T Eco on” is undershot and heats up to “T Eco” + hysteresis when solar
charge or solid fuel boiler is active.
Sensor 1
TH Reference is measured at the thermostat sensor 1. With a connected thermostat sensor 2, the relay switches on if “TH Ref” at ther-
mostat sensor 1 is undershot and off if “TH Ref” + hysteresis is exceeded at thermostat sensor 2.
Sensor 2
Optional switch off sensor
If “TH target” + hysteresis is exceeded on thermostat sensor 2, the relay will be shut down.
Electric heating rod approval times
Release time for the electric heating rod
Here the desired periods are set in which the electric heating rod is approved. For each weekday, three times can be specified, fur-
thermore, you can copy individual day to other days. The electric heating rod is shut down outside of the set times.
Anti-legionella heating rot
See " Anti Legionella " on page 58.
Dissipation (Cooling)
The dissipation function is a simple cooling function.
The relay of this function switches "on" as soon as the set Tsoll temperature at the assigned cooling sensor is exceeded and the set
time delay has elapsed.
If the temperature at the cooling sensor reaches Tsoll hysteresis, the function switches "off" without a time delay.
Tset
The target temperature at the set sensor for the function cooling (dissipation).
Cooling sensor
The corresponding cooling sensor for the dissipation function is set here.
Delay
Switch delay of the heat and cooling request. In order to prevent the heat or cooling request to be activated if there are heat devi-
ations, the corresponding relay is switched up ot 5 minutes before the switch conditions occur.
Season switch
1. 2.
1. Mode "Heating" -> output of the season switch is not active
2. Mode "Cooling" -> output of the season switch active
The seasonal switch function switches for change of season (from heating to cooling or vice versa) in combination with the energy
request. For example, for inverting a heat pump suitable for reversible operation. If the request for domestic water is activated for the
heat pump in the controller, the operating mode of the heat pump automatically switches to the "heating" mode in case of domestic
water request, i.e. the output of the seasonal switch is switched off.
Off hysteresis
If the controller has changed the season from cooling to heating and flow < reference flow + Off hysteresis, the seasonal switch will be
switched off (output not switched).
Example 1:
Flow = 28 °C; target flow = 30 °C; off-hysteresis = - 3 °C
28 °C < 30 °C - 3 °C -> 28 °C < 27 °C -> wrong! -> Do not switch off the season change
Example 2:
Flow = 28 °C; target flow = 30 °C; off-hysteresis = + 3 °C
28 °C < 30 °C + 3 °C -> 28 °C < 33 °C -> correct! -> Switch off the season change
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