Installation And Connection Of Vt Safety Limiter - Promatic WDC10B Manual

INSTALLATION AND CONNECTION OF VT SAFETY LIMITER

PROMATIC WDC
Example 1:
Exceeding the safety limiter
temperature will deactivate the
circulation pump.
Legend: VT - safety limiter
Service setting manual
In the case of floor heating, a safety limiter VT should be installed.
You can use a (capillary) tube-wall, surface or an immersion ther-
mostat 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) or the temperature which
is at least 5°C higher as the set maximum allowed stand-pipe
temperature on the controller - parameters 2.6 and S3.6.
PROMATIC WDC
Example 2:
Exceeding the safety limiter
temperature will close the mixing
valve.
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