DEVI devireg 540 User Instruction page 4

Introducing devireg
devireg 540 is an advanced temperature controller, with a
™
built-in Timer.
devireg 550 ONLY:
™
devireg 550 is an adaptive temperature controller,
™
specially designed for fl oor heating systems.
The devireg
™
fl oor combined with the comfort from the air temperature in
the room to offset the outside weather condition.
We as human beings perceive comfort as the combined
effect of the radiant heat from the fl oor and air temperature
in the room. By continually measuring this combined effect,
it is therefore possible to maintain the highest possible
comfort level.
A higher fl oor radiant temperature can produce a sense of
comfort with a lower air temperature which can result in
lower running costs without reducing comfort levels.
4
™
550 will measure the radiant comfort from the
540/550