Honeywell honeywell programmable thermostat Thermostat User Manual

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CT3200 Programmable Thermostat  
OWNER’S GUIDE  
Welcome to the world of comfort and energy savings with your  
new Honeywell Programmable Thermostat. Your new thermostat  
will automatically control the temperature in your home, keeping  
you comfortable while saving energy.  
Weekday/Weekend (5-day/2-day)  
Programmable Heat and/or Cool  
Low Voltage (20 to 30 Vac)  
Thermostat and Mounting Plate  
Model CT3200  
Table of Contents  
Installation ..................................................................................................................................................................  
2
Programming.............................................................................................................................................................. 12  
Operation.................................................................................................................................................................... 18  
Frequently Asked Questions ...................................................................................................................................... 22  
Customer Assistance ................................................................................................................................................. 23  
Limited Warranty ........................................................................................................................................................ 24  
®
U.S. Registered Trademark  
Copyright © 2003 Honeywell International Inc.  
All Rights Reserved  
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MERCURY NOTICE  
If you are removing an old thermostat that contains mercury in a sealed tube  
(
Fig. 1), do not place the old thermostat in the trash. Contact your local waste  
management authority for instructions regarding recycling and the proper  
disposal of the old thermostat.  
MERCURY  
SWITCH  
M3701  
Fig. 1.  
INSTALLATION  
Verify You Have Correct Thermostat  
Make sure that the CT3200 is the correct thermostat for your heating/cooling system. Read the compatibility chart  
below to determine which system you have. If your system is not compatible with the CT3200, the table recommends  
an alternate Honeywell model. If you are unsure what type of thermostat is right for your system, visit us on the Web at  
www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502.  
Compatible  
with CT3200? Alternate Model  
Heating/Cooling System  
Conventional  
Yes  
Single stage systems that include warm air furnaces and hot water.  
Electric Baseboard  
No  
CT1950 for 240  
volts  
Electric-powered heating strips located just above the floor, usually 120 to 240  
volts.  
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Compatible  
Heating/Cooling System  
with CT3200? Alternate Model  
Steam  
No  
CT3600  
A steam boiler with radiator heat.  
Heat Pump  
No  
No  
No  
CT3600  
Heating and cooling are produced from the same outdoor unit (compressor) with  
no auxiliary or backup heat.  
Multistage Heat Pump  
CT3611  
Heating and cooling are produced from the same outdoor unit (compressor) with  
auxiliary or backup heat.  
Multistage Conventional  
See your  
A heating or cooling system with more than one stage.  
contractor  
Step 1. Prepare for Installation  
1
.
Carefully unpack your new thermostat. Save your receipt and make sure you have the following parts:  
Thermostat and mounting plate  
Labels  
Screws and anchors  
Installation and Programming Instructions  
2
.
Gather the needed tools and supplies listed below.  
Required Tools and Supplies  
Optional Tools  
Two AA alkaline batteries. Honeywell recommends Energizer®  
Wire cutter/stripper or sharp knife.  
batteries.  
Level.  
Screwdriver.  
Electrical tape.  
Hand or power drill with 3/16-inch or 7/32-inch drill bit.  
Pencil.  
3
.
Make sure that your heating and cooling systems are working properly. If there is a problem with either system,  
call a heating/air conditioning contractor—the problem may persist after you install the new thermostat.  
IMPORTANT:  
To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the tem-  
perature outdoors is below 50°F (10°C).  
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Step 2. Remove Old Thermostat  
Fig. 2.  
a. Turn off power to the heating/cooling system, either at the  
furnace or at the fuse/circuit breaker panel.  
b. Remove the cover of your old thermostat (Fig. 2).  
c. Unscrew and remove the old thermostat’s mounting plate  
from the wall, but do not disconnect the wires.  
d. Inspect the old thermostat wiring. If wiring meets any of  
the following conditions, see special wiring instruc-  
tions section after Step 7.  
M20140  
Fig. 3.  
The old thermostat is a clock thermostat with wires attached  
to the C or C1 terminals.  
The old thermostat has six or more wires, excluding wires  
attached to C or C1 terminals.  
The old thermostat has three wires.  
There are five wires connected to the old thermostat.  
There are extra wires that are not connected to the old  
thermostat.  
e. Using enclosed labels, mark wires with letter of terminal it is  
attached to on the old thermostat (Fig. 3). Do not label  
using colors. If labels do not match letters on old thermostat  
terminals, see wiring cross reference table in Special Wiring  
Instructions section.  
M19086  
Fig. 4.  
f. Disconnect the wires from the old thermostat and wrap the  
wires around a pencil to keep them from falling back into the  
wall.  
WIRES THROUGH  
WALL OPENING  
NOTE: Remember, if your old thermostat contains mercury,  
you must recycle it. See Mercury Notice for more  
recycling information.  
M20133  
Check your progress  
Your wall should now look like Fig. 4.  
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Step 3. Install Mounting Plate  
Fig. 5.  
a. Separate the mounting plate from the thermostat using a  
coin, as shown in Fig 5.  
b. Position the mounting plate on the wall. Be sure the mount-  
ing plate is flush against the wall and none of the wires are  
trapped behind it.  
c. Level the mounting plate and use a pencil to mark the cen-  
ter of the mounting plate screw holes.  
d. Remove the mounting plate and drill holes at the locations  
marked.  
For drywall, drill two 3/16-inch holes.  
M20139  
For plaster or wood, drill two 7/32-inch holes.  
Fig. 6.  
e. If installing in drywall, gently tap the anchors (provided) into  
the drilled holes until they are flush with the wall.  
f. Reposition the mounting plate over the holes, pull the wires  
through the wiring opening, and loosely insert the mounting  
screws into each of the drilled holes or anchors (Fig. 6).  
g. Make sure the mounting plate is level and tighten the  
mounting screws.  
M20129  
Fig. 7.  
 Check your progress  
The mounting plate is now mounted on the wall and should look like  
Fig. 7.  
M20128  
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Step 4. Set Thermostat for Your Type of Heating System  
THERMOSTAT BACK  
I
IMPORTANT:  
Setting your thermostat correctly  
for your type of heating system  
allows it to maintain accurate  
temperature control, minimize  
swings in the temperature of the  
room, and efficiently run the fan.  
ON  
1
2
3
1
2
DISPLAY  
DISPLAY  
F
3 - ON  
C
3 - OFF  
3
HEATING  
SYSTEM  
DIP SWITCH FUEL SWITCH  
POSITION  
POSITION  
OFF ON  
WARM AIR  
FURNACE  
1
- ON 2 - ON  
F
HOT WATER OR  
HIGH EFFICIENCY  
1
- OFF 2 - ON  
F
E
ELECTRIC  
FURNACE  
1
- ON 2 - OFF  
a. Use the FUEL SWITCH on the  
back of the thermostat to set your  
new thermostat for the type of fuel  
that your heating system uses: F–  
gas or oil, or E–electric.  
W
Y
G
FUEL SWITCH  
W
C
Y G  
R R  
F
E
C
NOTE: This setting enables  
proper fan operation.  
RC  
C
b. Use DIP switches 1 and 2 on  
the back of the thermostat to set  
your new thermostat for your type  
of heating system. See the Heat-  
ing System Table on the next  
M20637  
Fig. 8.  
page to find the correct settings.  
NOTE: These DIP switches are  
factory-set for a warm air, gas, or  
oil heating system.  
c. The thermostat is set to display the temperature in degrees Fahrenheit (°F). If you want to display the tem-  
perature in degrees Celsius (°C), turn DIP Switch 3 to Off position.  
d. You can install the batteries and program your thermostat now, or you can wait until the thermostat is  
mounted on the wall. To install the batteries, see Step 7.To program the thermostat, see the Programming  
section.  
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Heating System Table  
DIP Switches  
1 and 2  
Type of System  
Warm air, gas, or oil heating system with an efficiency rating under 90%.  
The furnace efficiency rating should be on the furnace.)  
Fuel Switch  
Use factory setting  
F
(
1–On; 2–On  
High-efficiency furnace such as a 90% or greater AFUE (Average Fuel  
1–Off; 2–On  
F
Utilization Efficiency) unit  
Hot water boiler  
Electric furnace  
1–Off; 2–On  
1–On; 2–Off  
F
E
Step 5. Wire Thermostat Terminals  
Fig. 9.  
a. Hold thermostat as shown in Fig. 9.  
b. Using the labels on the wires, match letter of your old ther-  
mostat wire with the corresponding terminal on the back of  
your new thermostat.  
W
R
NOTE: If letters on old thermostat terminals do not match letters on  
new thermostat terminals, all old wires may not need con-  
necting to new thermostat. See Special Wiring Instructions  
section.  
M20125  
Fig. 10.  
c. Loosen terminal screws and slip each wire beneath its  
matching terminal (Fig 10).  
INSERT  
STRAIGHT  
UNDER  
d. Securely tighten terminals.  
5
(
/16 in.  
8 mm)  
STRIP  
SCREW HEAD  
END OF WIRE  
VISIBLE HERE  
M20126  
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Step 6. Mount Thermostat  
Fig. 11.  
Fig. 12.  
e. Align the tabs at the top of the thermostat  
with the tabs at the top of the mounting  
plate (Fig. 11).  
f. Press the lower edge of the case to latch  
the bottom of the thermostat (Fig. 12)  
M20131  
M20130  
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Step 7. Install the batteries  
Fig. 13.  
IMPORTANT:  
Batteries must be installed for programming and operation of  
the thermostat and heating/cooling system. Honeywell rec-  
ommends using Energizer® batteries.  
a. Make sure that the System switch is set in the OFF position.  
b. Using a coin, open the battery door as shown in Fig. 13.  
c. Install the batteries. Make sure that the positive and nega-  
tive terminals are oriented correctly as marked inside the  
battery case.  
REMOVING  
BATTERY  
DOOR  
d. Replace the battery door.  
M1719C  
e. Remove the clear plastic label from the digital display.  
Fig. 14.  
Check your progress  
When the batteries are installed correctly, the digital display flashes all  
entries once, then begins to flash a default time and the current  
temperature (Fig. 14). The flashing continues until you begin to  
program the thermostat. You are now ready to program the thermostat.  
See Programming section.  
Special Wiring Instructions  
Clock thermostat with C or C1 terminals  
A clock thermostat has one or two extra wires attached to the C or C1 terminals that allow the clock to operate. These  
wires are not used during the installation of your new 3200 Thermostat and must be insulated from each other to avoid  
damaging your electrical circuit.  
a. Make sure that power to the heating/cooling system is turned off.  
b. Locate the wires that are connected to the clock terminals marked C or C1.  
c. As you disconnect the wires, do not allow these wires to touch.  
d. Wrap the wires separately, using electrical tape to insulate the wires.  
e. Place the wires where they do not interfere with the operation of the new thermostat.  
You will not connect these wires to your 3200 Thermostat.  
f.  
Continue with the installation.  
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Six or more wires  
If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your heating/  
cooling system is most likely a variation of a heat pump or multistage system. Your 3200 Thermostat will NOT work  
with such systems and should be returned to the place of purchase. See the thermostat compatibility table for  
information about which programmable thermostat will work with your system.  
Three thermostat wires  
If you have three wires for heating only and can operate the fan using the fan ON switch, the 3200 Thermostat will  
work with your system. Continue the installation procedure.  
If you have a three-wire heating-only system and cannot operate the fan using the fan ON switch, the 3200  
Thermostat will probably NOT work with your system. Contact your heating contractor for installation assistance.  
Wires that are not connected to old thermostat  
If there are extra wires that do not connect to your old thermostat, do not label them. You will not connect these wires  
to your new thermostat. Tape off the wires individually with electrical tape and place them where they will not interfere  
with the operation of the new thermostat. Continue the installation procedure.  
Five wires connected to old thermostat  
JUMPER (FACTORY-  
INSTALLED). REMOVE  
IF 5-WIRE SYSTEM  
Your new thermostat has a factory-installed metal jumper between the R and Rc  
terminals (Fig. 15). Remove the jumper before wiring the R and Rc terminals.  
c R  
R
G
W
Y
M20127  
Fig. 15.  
Thermostat C Terminal  
This thermostat does not use the C wiring terminal.  
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Old thermostat terminals that do not match new thermostat terminals  
Use the table below to wire the new thermostat.  
Connect to New  
Old Thermostat  
Terminal  
Thermostat  
Terminal  
Description  
R, RH, 4, V  
Rc, R  
R*  
Rc*  
W
Power  
Power for cooling  
Heat  
W, W , H  
1
Y, Y , M  
Y
Cooling  
Fan  
1
G, F  
O
B
G
Do not continue  
Changeover in cool (O terminal) or changeover in heat (B terminal).  
You have a single-stage heat pump or zoning system. Select an alternate  
thermostat model.  
installation  
C, X, B  
Do not connect  
Transformer common.  
W , H  
Do not continue  
Second stage heat (W , H ) or second stage cooling (Y ).  
2 2 2  
You have a multistage heating/cooling system. Select an alternate  
thermostat model.  
2
2
installation.  
Y2  
*
Remove factory-installed jumper between R and Rc terminals in 5-wire systems.  
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PROGRAMMING  
Faceplate Illustration and Description  
Descriptions  
Fig. 16.  
1
2
Fan switch–Selects automatic fan operation or fan on.  
7
8
Set Schedule–Puts the thermostat into programming  
mode.  
6
5
9
AM  
PM  
3
4
5
Set Clock/Day–Sets the clock and day.  
Time Ahead and Back–Sets the time ahead and back.  
SET  
SYSTEM ON  
TEMPORARY  
10  
MO TU WE TH FR SA SU  
WAKE LEAVE RETURN SLEEP  
4
11  
Time  
Temp  
Program periods–Current program period or period being  
programmed.  
Set  
Run  
Program  
3
2
12  
13  
Ahead Warmer  
Back Cooler  
clock/Day  
6
7
8
Day of the week–Current day or day being programmed.  
Time–Current time or program time.  
Set  
Schedule  
Hold  
Temp  
Temperature–Room temperature or programmed  
temperature.  
Fan  
System  
Cool Off Heat  
1
14  
Auto On  
9
1
SYSTEM ON–An arrow displays when the heating/  
cooling system is running.  
M20141  
0
TEMPORARY–An arrow displays when a temporary  
override is made to the program.  
11  
Temp Warmer and Cooler–Sets the temperature warmer  
and cooler.  
12  
Run Program–Returns thermostat to normal operating  
mode  
1
1
3
4
Hold Temp–Holds a selected temperature.  
System switch–Selects Cool, Off, Heat.  
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Step 1. Set Current Time and Day  
a. Press  
once.  
Fig. 17.  
The time is displayed (Fig. 17).  
b. Press and hold  
or  
until the cur-  
until the cur-  
rent time is displayed.  
c. Press  
again.  
Fig. 18.  
Fig. 19.  
The day is displayed (Fig. 18).  
d. Press and hold  
rent day is displayed.  
or  
e. Press  
once.  
The current time and day and the current tempera-  
ture are displayed (Fig. 19).  
Step 2. Learn About Programming Features  
Your 3200 Thermostat allows you to program schedules for both a heating season and a cooling season.  
During the heating season, you will want to set the normal room temperature higher and the energy-saving  
temperature lower.  
The reverse is true during the cooling season—the normal room temperature will be lower and the energy-saving  
temperature higher.  
For each season, you can set up to four program periods for the weekdays (Monday–Friday), and up to two program  
periods for the weekends (Saturday and Sunday). The program periods are defined in the following table.  
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Program Period  
Description  
When Available  
WAKE  
The time when you get up and get ready to leave your home. You can Weekdays and weekend  
set the system at a comfortable temperature for this period.  
LEAVE  
RETURN  
SLEEP  
The time when you are regularly away from home. You can set up an Weekdays only  
energy-saving temperature for this period.  
The time between returning home and going to bed. You can set the Weekdays only  
system at a comfortable temperature for this period.  
The time when you are sleeping. You can set up an energy-saving  
temperature for this period.  
Weekdays and weekend  
Programming Tips  
You do not need to program times and temperatures for all program periods.  
If you decide not to program your thermostat, it automatically controls heating at 68°F (20°C), and cooling at 78°F  
26°C), 24 hours a day.  
(
If you decide not to program weekend schedules, the temperature that is programmed for the weekday SLEEP  
schedule remains in effect until the next program period, which begins on Monday morning.  
The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).  
When pressing the buttons, use the ball of your finger or a soft pencil eraser. Using sharp fingernails or pencil  
points can damage the keypad.  
If you make an error at any time during programming, press  
program period you last programmed.  
. Then press  
until you reach the  
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Step 3. Program Heating Schedule  
a. Write in the times and temperatures that you want to program for your heating schedule.  
Program  
Heating Schedule  
Period  
WAKE  
6:00 AM  
70°F (21°C)  
LEAVE  
8:00 AM  
62°F (16.5°C)  
RETURN  
6:00 PM  
70°F (21°C)  
SLEEP  
10:00 PM  
62°F (16.5°C)  
Suggested  
Time  
Settings  
Temp  
Weekday (Mon–Fri) Time  
Temp  
Weekend (Sat–Sun) Time  
Temp  
b. Set the System switch to HEAT.  
Fig. 20.  
Fig. 21.  
c. Press  
once.  
A blank schedule is displayed (Fig. 20).  
d. Set the Monday–Friday WAKE time by pressing  
or  
e. Set the Monday–Friday WAKE temperature by pressing  
or until desired temperature is  
displayed.  
until the desired time is displayed (Fig. 21).  
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f. Press  
to display a blank schedule for the next  
Fig. 22.  
Fig. 23.  
program period (Fig. 22) and repeat steps d. through f. for  
each weekday program period.  
g. Press  
Fig. 23).  
h. Set the Saturday and Sunday WAKE time by pressing  
until the weekend schedule is displayed  
(
or  
until the desired time is displayed.  
i. Set the Saturday and Sunday WAKE temperature by  
Fig. 24.  
pressing  
or  
until desired temperature  
displays (Fig. 24).  
j. Press  
again to display blank schedule for SLEEP  
program period and repeat steps h. through j. to set pro-  
gram.  
k. Press  
to start the program.  
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Step 4. Program Cooling Schedule  
a. Write in the times and temperatures you want to program for your cooling schedule.  
Program  
Cooling Schedule  
Period  
WAKE  
6:00 AM  
78°F (25.5°C)  
LEAVE  
8:00 AM  
85°F (29.5°C)  
RETURN  
6:00 PM  
78°F (25.5°C)  
SLEEP  
10:00 PM  
82°F (28°C)  
Suggested  
Time  
Settings  
Temp  
Weekday (Mon–Fri) Time  
Temp  
Weekend (Sat–Sun) Time  
Temp  
b. Set the System switch to COOL.  
c. Repeat steps 3c. through 3k. to program the weekday and weekend cooling schedule.  
Step 5. Check System  
Verify that your heating system works  
a. Set the System switch to HEAT, and the Fan switch to  
AUTO.  
Fig. 25.  
b. Press  
until the setting is 10°F (6°C) above room  
temperature (Fig. 25). Your heating system should start  
and the fan should run after a short delay.  
c. Press  
until the setting is 10°F (6°C) below room  
temperature. Your heating system should shut off.  
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Verify that your cooling system works  
IMPORTANT:  
To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the tem-  
perature outdoors is below 50°F (10°C).  
d. Set the System switch to COOL, and the Fan switch to AUTO.  
Fig. 26.  
e. Press  
until the setting is 10°F (6°C) below room tem-  
perature (Fig. 26). Your cooling system and fan should start.  
NOTE: When cooling setting is changed, thermostat can  
delay up to five minutes before turning on air condi-  
tioner. This delay protects the compressor.  
f. Press  
until setting is 10°F (6°C) above room temper-  
ature.Your cooling system and fan should stop.  
g. Set the System switch to OFF and the Fan switch to AUTO.  
The cooling system and fan should be off.  
OPERATION  
Change Clock for Daylight/Standard Time  
a. Press  
once. The time is displayed.  
or until the correct time is displayed.  
b. Press and hold  
c. Press  
once. The current time and day and current temperature display.  
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Set Fan and System Switches  
The switches on the bottom of the thermostat faceplate control the operation of your fan and the heating and cooling  
system. Set the Fan switch first and then set the System switch.  
Switch  
Fan  
Setting  
Auto  
Result  
A single-speed fan turns on automatically with the air conditioner or furnace.  
A two-speed fan usually runs on high with the air conditioner and on low with the furnace.  
Auto is the normal setting for most homes.  
On  
The fan runs continuously. Use this setting for improved air circulation during special  
occasions or for more efficient air cleaning.  
NOTE: In a heat-only system, the fan runs continuously only if the fan wire has been con-  
nected to the G terminal on the back of the thermostat.  
System  
Cool  
Off  
Heat  
The thermostat controls your air conditioning system.  
Both the heating and air conditioning systems are off.  
The thermostat controls your heating system.  
Replace Batteries  
As the batteries run low, your thermostat shows the following in the digital display:  
If you see:  
Flashing “bAt Lo”  
Blank display  
Batteries are:  
Low  
Dead  
You should:  
Replace the batteries as soon as possible, within the month.  
Replace the batteries immediately. Your heating/cooling system is not  
operating.  
a. Make sure that the System switch is set to the OFF position.  
b. Open the battery door.  
c. Press on the left side of the batteries to remove them.  
NOTE: If new batteries are inserted within 20-30 seconds of removing old ones, reprogramming is not  
needed. If display is blank, batteries are dead or incorrectly installed and reprogramming is needed.  
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d. Install new batteries. Make sure that positive and negative terminals are oriented as marked inside battery  
case.  
e. Close the battery door and set the System switch to HEAT or COOL.  
NOTE: If “bAt Lo” continues to display after replacing the batteries, set System switch to OFF, insert batteries back-  
ward, wait for five to ten seconds, and return batteries to correct orientation. Then reprogram.  
IMPORTANT:  
Replace batteries once a year to prevent heating/cooling system from shutting down due to lack of battery  
power in thermostat. If leaving home for longer than a month, change batteries before leaving.  
Override program settings  
NOTE: Make sure the System switch is set to either HEAT or COOL before making any changes to the schedule.  
Change the temperature temporarily  
Fig. 27.  
Press  
or  
until the desired temperature is  
displayed. An arrow is displayed, indicating that the change is  
temporary (Fig. 27).  
NOTE: A temporary change to temperature lasts for current  
program period only. Heating/cooling schedule you  
programmed resumes when next scheduled pro-  
gram period is reached.To cancel temporary  
change before next scheduled program period,  
press  
.
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Hold a temperature indefinitely  
Fig. 28.  
Use the Hold Temp feature when you want to maintain a  
constant temperature indefinitely, such as when you go on  
vacation.  
a. Press  
. “HLd” is displayed (Fig. 28).  
b. Press or until the desired temperature is displayed.  
NOTE: To cancel the hold, press  
.
Check the current programmed temperature  
Fig. 29.  
Press  
to display temperature programmed for current  
program period. The SET indicator displays briefly along with the  
programmed temperature (Fig. 29). The display then returns to the  
room temperature.  
Check programs  
Press  
repeatedly to display the times and temperatures  
that you programmed.  
a. Press  
to resume the program  
Cancel a program  
Fig. 30.  
a. Press  
until the desired program is displayed  
(
Fig 30).  
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b. Press  
and  
simultaneously.  
Fig. 31.  
A blank program schedule is displayed and the program  
is canceled (Fig. 31).  
Change a program permanently  
Follow steps for programming heating schedule or programming  
cooling schedule.  
FREQUENTLY ASKED QUESTIONS  
If...  
Then...  
Display does not come on  
Make sure the batteries are fresh and installed correctly.  
Set System switch to Off. Remove batteries and insert backward for five to  
ten seconds to reset thermostat. Replace batteries correctly; display should  
come on.  
Temperature display does not go  
Temperature limit setting is reached; range is 45°F to 88°F (7°C to 31°C).  
lower than 45°F (7°C) or higher than  
88°F (31°C) during programming.  
Display shows flashing “bAt Lo.”  
The batteries are low; replace them as soon as possible.  
If “bAt Lo” continues to display after replacing batteries, set System switch  
to Off and insert batteries backward for five to ten seconds. Replace  
batteries correctly; display should come on.  
Temperature change occurs at wrong  Check program times for period in question. Be sure AM and PM  
times  
indications are correct. Make sure current day and time are correct.  
Reprogram if necessary.  
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If...  
Then...  
Heating does not come on  
Check that the System switch is set to Heat.  
Check the system fuse or circuit breaker and replace or reset if necessary.  
Check for correct wiring and good connections.  
If display is blank or displays “bAt Lo,” install fresh batteries.  
Allow time for the furnace to heat up and the fan to come on before  
checking for heat at the register.  
If temperature setting is higher than current room temperature and  
SYSTEM ON arrow is displayed, thermostat is operating correctly. Contact  
heating contractor for assistance.  
Cooling does not come on  
Check that the System switch is set to Cool.  
Check the system fuse or circuit breaker and replace or reset if necessary.  
Check for correct wiring and good connections.  
If display is blank or says “bAt Lo,” install fresh batteries.  
The thermostat has a built-in time delay on cooling. Allow 5-10 minutes  
after changing setting before air conditioner starts.  
If temperature setting is lower than room temperature and SYSTEM ON  
arrow is displayed, thermostat is operating correctly. Contact ac contractor.  
The house is too warm or too cool  
Press RUN PROGRAM to check the current temperature setting.  
If desired, change the temperature setting.  
Furnace cycles too often or system  
cycle length is too short or too long  
Adjust the screws on the back of the thermostat.  
The thermostat current setting does  
not match the display temperature to  
within plus or minus 1°  
Plug the wiring hole in the wall behind the mounting plate with insulation to  
prevent drafts that might adversely affect thermostat operation.  
Be aware that it is normal for the current setting and the displayed room  
temperature to differ on occasion.  
During recovery from setback or setup, setting and displayed room  
temperatures can differ for up to 30 minutes after recovery period.  
CUSTOMER ASSISTANCE  
Visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502.  
Before you call, please have the following information available:  
Thermostat model number and serial code (located under the battery cover).  
Type of heating/cooling system (hot water, warm air, oil, gas, etc.).  
Number of wires connected to the thermostat.  
NOTICE: This equipment is a Class B digital apparatus, that complies with Canadian Radio Interference Regulations, CRC c.1374.  
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LIMITED WARRANTY  
Honeywell warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service,  
for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is  
defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.If the product is  
defective,  
(
(
i) return it, with a bill of sale or other dated proof of purchase, to the retailer from which you purchased it, or  
ii) package it carefully, along with proof of purchase (including date of purchase) and a short description of the malfunction, and mail it,  
postage prepaid, to the following address:  
Honeywell Inc. USA  
Honeywell Canada:  
Dock 4 — MN10-3860  
Honeywell Limited/Honeywell Limitée  
35 Dynamic Drive  
1
885 Douglas Drive North  
Golden Valley, MN 55422-3992  
Scarborough, Ontario M1V 4Z9  
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or  
malfunction was caused by damage which occurred while the product was in the possession of a consumer.  
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE  
LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES  
RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER  
FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this  
limitation may not apply to you.  
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY  
IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
IS HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an  
implied warranty lasts, so the above limitation may not apply to you.  
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.  
If you have any questions concerning this warranty, please write Honeywell Customer Relations Center, 1985 Douglas Dr. N., Golden  
Valley, MN 55422-3992, or call 1-800-468-1502. In Canada, write Retail Products ON30 Honeywell Limited/Honeywell Limitée, 35  
Dynamic Drive, Scarborough, Ontario M1V 4Z9.  
Automation and Control Solutions  
Honeywell International Inc.  
Honeywell Limited-Honeywell Limitée  
35 Dynamic Drive  
Scarborough, Ontario  
M1V 4Z9  
1
985 Douglas Drive North  
Golden Valley, MN 55422  
6
9-1631—1 J.S. Rev. 10-03  
Printed in U.S.A.  
www.honeywell.com/yourhome  

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