![Regulus IR 12 User Manual Download Page 32](http://html1.mh-extra.com/html/regulus/ir-12/ir-12_user-manual_1434395032.webp)
32
However the source might run and keep circulation pump running for
some time which is caused by safety algorithms of the source that
cannot be overridden by the Controller.
max. t. out. (°C)
Setting the max. flow temperature from an OpenTherm source. This
value will be sent to the source to limit its max. flow temperature.
return line valve type (div./mix.)
Setting the valve type in the heating return line. A diverter
diverts the return line either directly to the boiler, or to the Thermal
Store for preheating, depending on the return line and Thermal Store
temperatures. A mixing valve mixes the return line temperature to the
desired value.
For control type 2 no heating return valve is used.
control by (ThS U, ThS L)
Selecting a sensor to be decisive for a return line diverter
switching.
return line valve closing time
Closing time for the return line valve after the demand to heat
hot water is finished. The valve closes for the set time and
then the function is released and the valve is again controlled
by its own logic (diverter/mixer).
DHW type (disabled, therm., own logic)
Configuration manner for heating of DHW zone in a
source controlled by OpenTherm protocol. The option
“disabled” indicates the independent DHW heating in the
source is switched off. With the option “therm.” set, DHW is
heated up depending on the sensor in the hot water storage;
and when the option “own logic“. is set, DHW heating is
controlled by a dedicated DHW sensor.
For control type 2 no heating return valve is used.