14
Check the mains supply line for voltage-freeness. Ensure
that no present electrical or water lines are damaged during
installation.
The same applies, if only low voltage is to be supplied
through the relay, since this may cause short circuit at in-
stallation!
Remove the battery holder at the bottom of the device. Turn
the housing screw at the bottom of the controller out only
until the upper shell of the room thermostat can be removed.
Do not turn the housing screw out entirely. There is the dan-
ger of losing the housing screw and the square nut. Now
pull the upper shell of the controller off of the base plate.
The base plate is attached on a recessed socket with the
two enclosed screws. The base plate has four indentations
for attachment for this purpose. Break out the two required
attachment openings with a suitable tool. Route the mains
line through the mains line opening of the base plate. Attach
the base plate on the recessed socket with the two enclosed
screws (figure 1). Check for tight fit of the base plate.
Strip 5 mm of the cable insulation. Connect the supply line
of the end device to the screw terminal NO (1) or NC (3) and
COM (2).
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