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Honeywell Home CT50 Series Thermostat Owner’s Manual
CT50 Series • 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!
CT50/CT53/CT54
CT51/CT55
M23787
M23788
IGNORE WIRE COLORS: Use only letter
designations to identify wire types.
For CT50/CT53/CT54: If your old
thermostat has 3 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.
For CT51/CT55: 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
CT50/CT53/CT54
CT51/CT55
1. Pull wires
through base.
2. Level base if
desired.
3. Mark positions
of both screw
holes.
M23790
M23789
69-2040EFS—04
2
| General | Details |
|---|---|
| Name | Honeywell Home CT50 Series Thermostat Owner’s Manual |
| Make | Honeywell Home |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.03 MB |
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