Honeywell CT51 Manual
Honeywell
Thermostat
CT51
Read below đź“– the manual in Italian for Honeywell CT51 (16 pages) in the Thermostat category. This guide has been helpful for 2 people and has been rated 4.5 stars on average by 2 users
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CT51 Series
Thermostat
Getting started
Before you begin, make sure you have:
• No. 2 Phillips & small pocket screwdrivers
• Hammer
• Level (optional)
• Pencil
• Drill and bit (3/16” for drywall, 7/32” for plaster)
® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Honeywell International Inc.
All rights reserved.
Owner’s Manual
English: Page 1
Mode d’emploi
Français: Page 6
Manual de Uso
Español: Página 11
Check package contents:
• Thermostat
• Wall anchors & screws (2 each)
• Wire labels
Remove your old thermostat
TURN OFF POWER at heating/cooling system (or fuse/circuit-breaker panel).
Remove cover and thermostat, but leave wallplate with wires attached.
Old thermostat
Leave wallplate in place Is there a sealed tube containing mercury?
If so, see mercury notice below.
Cover
MERCURY NOTICE: If your old thermostat contains mercury, contact your local waste
management authority for proper disposal instructions.
These models provide control of 24 Vac heating & cooling systems:
Vertical Mount: Horizontal Mount:CT51N • CT55N
CT51 Series
2
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!
IGNORE WIRE COLORS: Use only letter designations
to identify wire types.
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
1Pull wires through base.
2Level base if desired.
3Mark positions of
both screw holes.
English: Français: Español: Page 1 • Page 6 • Página 11
3
Connect wires
1Match each labeled wire
with same letter on terminal.
2Use a screwdriver to loosen
screw terminals, insert bare
wires beneath screws, then
tighten screws.
3Push any excess wire back
into the wall opening.
Labels don’t match?
If labels do not match letters on
thermostat, see table below.
Mount thermostat base
1Drill holes at pencil-marked
locations (3/16” holes for
drywall, 7/32” holes for
plaster).
[1] If wires will be connected to both Rand Rc
terminals, remove metal jumper.
[2] Do not connect both O Band if you have a
heat pump. Connect only the Owire. Wrap
Bwire with electrical tape and do not use.
[3] Do not use C X B, or . Wrap bare end of
wire with electrical tape.
Existing wires Connect to:
R 4 V• RH • • Terminal “R”[1]
Rc Terminal “Rc”[1]
OTerminal “O”[2]
BTerminal “B”[2]
G F• Terminal “G”
W H• W1 •Terminal “W”
Y M• Y1 •Terminal “Y”
C X • • B Do not use [3]
2Use hammer to tap anchors
into holes until flush with
wall.
3Pull wires through thermo-
stat base and insert screws.
Check level if desired, then
tighten screws.
Product Specifications
| Brand: | Honeywell |
| Category: | Thermostat |
| Model: | CT51 |
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