5
• Your thermostat is a precision electronic instrument; please
handle it with care to avoid damage.
5. REMOVE OLD THERMOSTAT
1. Turn OFF the electricity to all heating and
cooling components. Do not turn the
electricity back on until all work is
completed.
2. Remove the cover and front portion of your old thermostat
to expose the wiring connections.
3. Write down the letters printed near each wire terminal that
is used, and the color of the wire that is connected to it.
Using the enclosed labels, attach a label to each of your
wires so that the letter matches the marking on your
existing thermostat.
4. When they are all labeled, carefully remove the wires one
at a time, making sure that they do not fall back inside the
wall. Do not allow any of the bare wire ends to touch
each other, or any parts on the thermostat.
5. Loosen all of the screws on the old thermostat and
remove it from the wall.
6. MOUNT THE NEW THERMOSTAT
1. Strip insulation leaving 3/8 in. (9.5mm) bare wire ends
and clean off any corrosion.
2. Fill wall opening with non-combustible insulation to
prevent drafts from affecting the thermostat.
CAUTION:
Be careful not to drop the unit or disturb electronic parts.
Leave the door closed while the body is being removed from
the base.
OFF
