DEVI devireg 540 User Instruction page 40

Warning (devireg 550 ONLY):
™
Please note, when working on thermostats
connected to a network, ensure that the
mains supply for all thermostats in the
network is disconnected before the work is
started.
Screw holes
You can now
mount the ther-
mostat in the wall,
by using any of
the eight screw
holes in the base
module.
9