Solarbayer PROMATIC D10 Bedienungsanleitung Seite 65

INSTALLATION AND CONNECTION OF SAFETY LIMITER VT
PROMATIC D10, D20
Example 2:
Exceeding the safety limiter
temperature will deactivate the
circulation pump.
Legend: VT - safety limiter, R - relay 230 V ~
In case of floor heating, a safety limiter VT should be installed.
You can use a tube-wall or an immersion thermostat with a
switching contact. Install it above the VF stand-pipe sensor. Set
the maximum allowed stand-pipe temperature for floor heating
(usually between 40 °C and 60 °C). The temperature must be at
least 5 K higher as on the controller setted maximum stand-pipe
temperature (Tvmax) - parameter 2.7.
65
PROMATIC D10, D20
Example 3:
Exceeding the safety limiter
temperature will close the mixing
valve.
Installation manual