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Label Wires And Remove Old Wallplate; Mark Mounting Position - Honeywell The Round CT87K Owner's Manual

24 vac heating/heating and cooling systems
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CT87N/CT87K • Owner's Manual

Label wires and remove old wallplate

Use a screwdriver to disconnect wires one by one. As you disconnect each wire, wrap it with
the label matching the letter on your old thermostat. (Adhesive labels are supplied in your
thermostat package.)
Remove the old wallplate only after all wires are labeled. Be careful not to let loose wires fall
into the wall opening.
Wrap supplied labels securely around each wire. Do not let wires fall into wall opening!
For CT87N: If your old thermostat
has 7 or more wires (not counting
terminals C or C1), you may have
purchased the wrong replacement
thermostat. Stop now and call
1-800-468-1502 for advice.

Mark mounting position

CT87N
69-1959EFS—02
CT87N
IGNORE WIRE COLORS: Use only letter designations
to identify wire types.
1. Pull wires
through base.
2. Level base if
desired.
3. Mark positions
of both screw
holes.
CT87K
For CT87K: If your old thermostat
has 4 or more wires (not counting
terminals C or C1), you may have
purchased the wrong replacement
thermostat. Stop now and call
1-800-468-1502 for advice.
2
CT87K
R
W
Y

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The round ct87n