Honeywell CT3451 Handleiding


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® U.S. Registered Trademark
Copyright © 2003 Honeywell • •All Rights Reserved
OWNER’S GUIDE
69-1620-1
CT3451
Programmable Thermostat
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac) Thermostat and Wallplate
Congratulations on the purchase of your new thermostat!
More than 100 years of Honeywell engineering produced
this thermostat that can provide you with a more
comfortable and convenient living environment.
Your new thermostat automatically controls the
temperature in your home, keeping you comfortable
while saving energy when programmed according to
these instructions.
Direct questions about this thermostat to our Web site at
www.honeywell.com/yourhome or call the customer
information line at 1-800-468-1502.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of it properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of an old control.
1 PREPARE FOR INSTALLATION
Check Table 1 to make sure this thermostat is
compatible with your system. If not, return it to the
retailer.
Acquire tools and items, as needed. See Fig. 1.
Fig. 1. Required installation tools/supplies.
M10614
MERCUR
Y
SWITCH
T
YPICAL LOCATION OF A MERCURY
S
WITCH IN A THERMOSTAT
M20551
SCREWDRIVER HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED TO
DRILL HOLES IN WALL
WIRE CUTTER/STRIPPER IF NEEDED TO STRIP WIRES
LEVEL, IF NEEDED TO LEVEL
THERMOSTAT FOR APPEARANCE
CT3451 PROGRAMMABLE THERMOSTAT
69-1620—1 2
2 REMOVE OLD THERMOSTAT
Test to be sure your heating and air conditioning
systems (where applicable) are working correctly. If
not, contact your local heating/air conditioning dealer.
To avoid compressor damage, do not operate the
cooling system when outdoor temperature is below
50°F (10°C).
Not compatible with any 120/240 volt circuit.
aCompatible with 2-wire Honeywell zone valves. Isolating relay required for zone valves that have a 3-wire thermostat
connection.
CAUTION
Equipment Damage Hazard.
Handling wires during installation can
damage equipment.
Disconnect power at furnace or main breaker/
fuse box before beginning installation.
Carefully unpack your new thermostat and wallplate
and save package of screws, instructions and receipt.
Remove the cover from the old thermostat. If it does
not snap off when pulled firmly from the bottom, check
for screw that locks on the cover.
Loosen screws holding thermostat to subbase,
wallplate or wall and lift away.
Disconnect wires from old thermostat or subbase. As
you disconnect each wire, use the wiring labels
(enclosed) to label each wire with the old terminal
designation. If there are only two wires, they do not
require labeling. Wrap wires around a pencil to keep
them from falling back into the wall as shown in Fig. 2.
Fig. 2. Wrapping wires around pencil.
Replacing Clock WIth C or C1 Clock
Terminals
If you are replacing a Honeywell Chronotherm®
Thermostat, you may find one or two wires that go to the
C or C1 clock terminals on the Chronother
Thermostat wiring wallplate. Do not allow them to touch,
or you can damage your transformer. Disconnect the
wires and wrap them separately using electrical tape; do
not wrap them together. Do not place the wires where
they can interfere with the new thermostat operation.
Record the colors and terminal designation labels of the
remaining wires.
Six or More Thermostat Wires
If there are six or more wires connected to the thermostat
(excluding clock wires attached to terminals), you
probably have a variation of a multistage heat pump or
other multistage system. The thermostat is not
compatible with these systems, so return the product to
your retailer. If you want information about which
programmable thermostats work with your system, visit
our Web site at www.honeywell.com/yourhome or call the
customer information line at 1-800-468-1502.
Three Thermostat Wires
If you have three wires for heating only and can operate
the fan using the Fan On switch, this thermostat works
with your system. However, some hot water (zoned)
heating systems have three thermostat wires. The
thermostat works only if a contractor installs an isolating
relay on these systems. For details, contact a local
heating/cooling contractor.
Table 1. Compatibility Chart.
System Type Compatible With CT3451
Gas—standing pilot Yes
Gas—electronic ignition Yes
Gas-fired boilers Yesa
Gas—750 millivolt Yes
Oil-fired boilers Yesa
Oil-fired furnace Yes
Electric furnace Yes
Electric air conditioning Yes
Single stage heat pumps (no backup or auxiliary heat) Yes
Baseboard electric (120/240 line volt) No
Multistage heat pumps/multistage equipment No
WIRES THROUG
H
WALL OPENING
M5136
CT3451 PROGRAMMABLE THERMOSTAT
3 69-1620—1
3 MOUNT WALLPLATE
IMPORTANT
Level for appearance only. The thermostat func-
tions normally even when not mounted level.
Position the wallplate on the wall. Level the wallplate
for appearance, if desired. Use a pencil to mark the
two mounting holes that best fit the application. See
Fig. 3.
Fig. 3. Mounting wallplate to wall.
Remove the wallplate from the wall and drill two 3/16-
in. holes in the wall (if drywall). For firmer wall material
such as plaster or wood, drill 7/32-in. holes. Gently tap
provided anchors into the drilled holes until flush with
the wall.
Reposition the wallplate, pulling wires through the
wiring opening. Loosely insert the mounting screws
into the holes.
Level for appearance only; the thermostat functions
correctly even when not level. Tighten the mounting
screws.
4 WIRE WALLPLATE TERMINALS
All wiring must comply with local electrical codes and
ordinances. If unsure about household wiring
procedures, call your local heating and air conditioning
contractor.
Refer to the labels you placed on wires when you
removed your old thermostat.
Match the letter of your old thermostat wire with the
terminal of the corresponding letter on your new
thermostat. Refer to Fig. 4.
Fig. 4. Connecting wiring.
NOTE: To ensure correct mounting of thermostat,
restrict all wiring to the shaded area in the cen-
ter of the terminals.
Loosen the terminal screws and slip each wire
beneath its matching terminal. The shape of the
terminals permit insertion of straight or wraparound
connections. See Fig. 5. Tighten the terminals.
Fig. 5. CT3451 methods for wiring connection.
Plug the hole in the wall with insulation to help prevent
drafts from adversely affecting thermostat operation.
The CT3451 Thermostat is powered with 3AA alkaline
batteries and is adaptable to most 18 to 30 Vac heating-
cooling systems. Refer to Fig. 6 through 10 for typical
system wiring diagrams.
M12202A
WALL WALL
ANCHORS (2)
WALLPLATE
WHEN USING WALL ANCHORS, DRILL 3/16 INCH
HOLES FOR DRYWALL, 7/32 INCH HOLES FOR
PLASTER OR WOOD.
MOUNTING
SCREWS (2)
1
1
T
ERMINAL
S
CREW
M12559A
G
R
Rc
Y
WB
O
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM)
FOR WRAPAROUND
STRIP 7/16 IN. (11 MM
)
M1253
7
FOR WRAPAROUND, STRIP
7/16 IN. (11 mm)
FOR STRAIGHT INSERTION
,
STRIP 5/16 IN. (8 mm)


Product specificaties

Merk: Honeywell
Categorie: Thermostaat
Model: CT3451

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