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Honeywell Home CT50 Series Thermostat Owner’s Manual
English: Page 1 • Français : Page 6 • Español: Página 11
Mount thermostat base
1. Drill holes at pencil-marked
locations (3/16” holes for
drywall, 7/32” holes for
plaster).
2. Use hammer to tap anchors
into holes until flush with wall.
3. Pull wires through thermostat
base and insert screws.
Check level if desired, then
tighten screws.
M23791
Connect wires
1. Match each labeled wire with same
letter on terminal.
CT50/CT53/CT54
2. Use a screwdriver to loosen
screw terminals, insert bare wires
beneath screws, then tighten
screws.
3. Push any excess wire back into the
wall opening.
Wiring CT50/CT53/CT54
Labels don't match?
If labels do not match letters on
thermostat, see table below.
•
2-wire heat-only system: Connect one
wire to R terminal, one wire to W terminal.
Existing wires Connect to:
R • RH • 5 • V
Rc
Terminal “R” [1]
Terminal “Rc” [1]
Terminal “O” [2]
Terminal “B” [2]
Terminal “G”
CT51/CT55
O
B
G • F
W • W1 • H
Y • Y1 • M
C • X • B
Terminal “W”
Terminal “Y”
Do not use
[3]
Wiring CT51/CT55
[1] If wires will be connected to both R and Rc
terminals, remove the metal jumper.
[2] Do not connect both O and B if you have a
heat pump. Connect only the O wire. Wrap B
wire with electrical tape and do not use.
[3] Do not use C, X or B. Wrap bare end of wire
with electrical tape.
3
69-2040EFS—04
| 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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