flamco MeiTronic W10, User Manual

Page: 94 / 232

94 Installation manual
EN
INSTALLATION AND CONNECTION
OF VT SAFETY LIMITER
In the case of floor heating, a safety limiter VT should be
installed. You can use a (capillary) tube-wall, surface 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)
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.
Legend:
VT - safety limiter
W..
Example 1:
Exceeding the safety
limiter temperature
will deactivate the
circulation pump.
W..
Example 2:
Exceeding the safety
limiter temperature will
close the mixing valve.