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STEP #2
:
78
8 00
74
o
Turn off the power to the Heating/Air
Am
M
o
COOL
AUTO
70
HEAT
o
Conditioning system at the main fuse
panel. Most residential systems have
a separate breaker for disconnecting
power to the furnace.
Remove the cover of the old thermostat.
:
8 00
78
74
Am
o
M
o
COOL
AUTO
70
HEAT
o
If it does not come off easily check for
screws.
8 00
:
78
Loosen the screws holding the thermostat
74
Am
o
M
o
COOL
AUTO
70
HEAT
o
base or subbase to the wall, and lift away.
Disconnect the wires from the old
:
8 00
78
74
Am
o
M
o
COOL
AUTO
70
HEAT
o
thermostat. Tape the ends of the wires
as you disconnect them, and mark them
with the letter of the terminal for easy
reconnection to the new thermostat.
:
8 00
78
74
Am
o
M
Keep the old thermostat for reference
o
COOL
AUTO
70
HEAT
o
purposes, until your new thermostat is
functioning properly.
REMOVE OLD THERMOSTAT
Page 3
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