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Replacing your old thermostat
CAUTION:
before any intervention, make sure
power is turned off.
1. Remove the cover of your old thermostat.
2. Take a picture of the wiring.
3. Identify the control cables COM (Common
Cable) and NO (Normally Open), with the help
of labels and / or connection screens in your old
thermostat (fig. 6).
CAUTION:
if there are more
than two wires, the others are useless. Isolate
them with the electrical tape.
4. Disconnect and remove your old thermostat from
the wall.
5. Open the
R
ialto
t
heRmostat
with a slotted
screwdriver (fig. 1 page 6) and remove the
protection from the terminals (fig. 7).
6. Pass the wires through the mounting plate.
Connect the cables to the terminal keeping the
same position of COM and NO. Place and fix the
cables with supplied screws and anchors (fig. 8
*
).
NOTE:
with battery thermostat it is sufficient to inter-
* NC meaning: Normally closed. Usually not used.
C NO
Caution
: dangerous
voltage parts
fig. 6
COM NC
NO
fig. 7
COM
NC
NO
fig. 8