Honeywell CT3451 Support Question
Honeywell CT3451 Support Question
Find answers below for this question about Honeywell CT3451.Need a Honeywell CT3451 manual? We have 1 online manual for this item!
Question posted by hotwheelbabie on May 5th, 2012
How Do I Reset So It Will Work?? It Seems To Be Stuck In A Program
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Current Answers
Related Honeywell CT3451 Manual Pages
Owner's Manual - Page 1
...8226;All Rights Reserved
69-1620-1
Required installation tools/supplies.
® U.S. CT3451 Programmable Thermostat
OWNER'S GUIDE
MERCURY NOTICE
If this control is compatible with a more comfortable and... Low Voltage (20 to make sure this thermostat is replacing a control that can provide you comfortable while saving energy when programmed according to the retailer.
❑ Acquire ...
Owner's Manual - Page 2
...or C1 Clock Terminals
If you are working correctly. If you have a 3-wire thermostat
connection. Three Thermostat Wires
If you want information about which programmable thermostats work with any 120/240 volt circuit. To... Baseboard electric (120/240 line volt) Multistage heat pumps/multistage equipment
Compatible With CT3451 Yes Yes Yesa Yes Yesa Yes Yes Yes Yes No No
Not compatible with ...
Owner's Manual - Page 3
... area in the wall with 3AA alkaline batteries and is adaptable to most 18 to 30 Vac heatingcooling systems. Refer to Fig. 4. WALL 1
WALL ANCHORS (2)
CT3451 PROGRAMMABLE THERMOSTAT
TERMINAL SCREW
FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM)
FOR WRAPAROUND STRIP 7/16 IN. (11 MM)
G
Rc
R
W B
Y O
M12559A
MOUNTING SCREWS (2)
WALLPLATE
1 WHEN USING WALL...
Owner's Manual - Page 4
CT3451 PROGRAMMABLE THERMOSTAT
THERMOSTAT G Rc
R
3
1 L1 (HOT)
L2
W Y
HEAT RELAY
FAN RELAY
COMPRESSOR CONTACTOR
B
O
2
COOL DAMPER
2
HEAT DAMPER
TRANSFORMER
1 POWER SUPPLY.
Typical heat-cool system hookup with 2-wire, heatonly system. Typical heat system hookup with two transformers.
69-1620-1
4 Typical cool system hookup with single transformer.
THERMOSTAT G
...
Owner's Manual - Page 5
... a "bAtLo" message on the digital display to alert the homeowner one to latch. M20512
CT3451 PROGRAMMABLE THERMOSTAT ❑ Swing down due to wallplate. Typical single-stage heat pump system hookup.
5 ADJUST FAN OPERATION SWITCH
The thermostat fan operation switch, labeled fuel switch in the F (gas/oil fuel) position. The E setting allows the fan...
Owner's Manual - Page 6
...; key to display heating and cooling algorithm default. SET
HT.
M12582A
- To change these settings using the instructions that follow. C3 = Aggressive control algorithm (Default. CT3451 PROGRAMMABLE THERMOSTAT
AA BATTERIES (3)
PM TUE
AuFtoANOn
Hold
Select
CoolSOYfSf THEeMat
- Release the keys to display the current heat cycle rate setting of 1, 3, 4, 5, 6, 9, or 12 is...
Owner's Manual - Page 7
... the time period you can damage the keyboard. See energy saving charts at a comfortable temperature when you are the same. CT3451 PROGRAMMABLE THERMOSTAT
NOTE: The heating and cooling program times are away from home during the day.
Leave is preprogrammed for energy-saving information.
SET
PM
M12591A
2. SET
M18534
To use only.)
M14692...
Owner's Manual - Page 8
...to set Leave temperature.
Press ▼ or ▲ key to set Leave temperature. Setting Saturday and Sunday Programs
To set Leave time. Press ▼ or ▲ key to set Sleep temperature.
M20558
b. Return ...or ▲ key to set the Saturday program:
1. SET
M20559
2.
a. Leave. Press Select. SET
SET
M18566
b. CT3451 PROGRAMMABLE THERMOSTAT
SET
M12625C
2.
Owner's Manual - Page 9
Press ▼ or ▲ key to set heat or cool program, as desired.
10 OPERATE YOUR THERMOSTAT
Displaying Temperature Setting
❑ Press ▼ or ▲ key once to set Sleep time. CT3451 PROGRAMMABLE THERMOSTAT
Setting Indefinite Temperature Hold
The Hold key allows you to displaying the current day time and temperature in five seconds. SET...
Owner's Manual - Page 10
...setpoint is changed . indicates the minimum off-timer
12 CHECK OPERATION AFTER INSTALLATION/PROGRAMMING
Heating System
❑ Slide the System switch to Heat and the Fan switch... minutes after it turns off . CT3451 PROGRAMMABLE THERMOSTAT
System Switch
❑ The System switch settings control thermostat operation as follows: Cool: The thermostat controls the cooling system. The heating...
Owner's Manual - Page 11
...Check the system fuse or circuit breaker and replace or reset, if
necessary. • Check for correct wiring and ... changing the setting before checking for assistance. TROUBLESHOOTING
CT3451 PROGRAMMABLE THERMOSTAT
Table 4. Frequently Asked Questions.
If ... Then ...lower than 99°F (37°C during programming.
The thermostat current setting does not match the displayed room...
Owner's Manual - Page 12
.... Honeywell's sole responsibility shall be to repair or replace the product within a reasonable period of one (1) year from state to be free from defects in U.S.A. CT3451 PROGRAMMABLE THERMOSTAT
PERCENT OF HEATING COSTS YOU CAN SAVE
SAVINGS FOR ONCE-A-DAY 10°F (5°C) DECREASE*
6 TO 8% 9 TO 11% 12 TO 13% 14 TO 15...
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