Note : If your old thermostat has only two (2) wires connected to it (heating system only), simply disconnect the two wires from the wall plate, skip
over steps 1 and 2 in the Wire labelling section and go on to step 3.
WARNING : After removing the wall plate, if you find that it is mounted on a junction box (e.g. a box similar to one behind a light switch or electric
outlet), 240 volts circuit may be present and there is a danger of electric shock. Please consult a qualified electrician.
WIRE LABELLING
1. If your old thermostat wall plate has MORE THAN TWO WIRES connected to it, then you will need to label the wires (Wire identification sticker
provided). First look for LETTER near each terminal where a wire is connected. These terminals and markings may be on either side of the wall
plate.
2. Disconnect and identify each wire.
3. You may wish to tape the wires to the wall to keep them from slipping through the hole in the wall. If the hole in the wall is larger than necessary, fill it
in order to prevent hot or cold air to penetrate the thermostat. In this manner, the thermostat will behave perfectly.
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