Honeywell Q682A Thermostat User Manual

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Heating/Cooling  
Thermostat and Subbase  
Package  
T8196A/Q682A  
OWNER'SMANUAL  
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Congratulations on your purchase of a Honeywell energy saving thermostat. The Honeywell  
name is your assurance of accurate control and reliable operation for years to come.  
During heating and cooling, this thermostat will automatically lower and raise the temperature  
in your home one or more times every 24 hours. This allows you to significantly lower your fuel  
costs, while awakening (or returning home) to a comfortable temperature.  
Read this manual to learn how to use your new thermostat.  
Recycling Notice  
M3375  
This control contains mercury in a sealed tube. Do not place control in the trash at the end of  
its useful life.  
If this control is replacing a control that contains mercury in a sealed tube, do not place your  
old control in the trash.  
Contact your local waste management authority for instructions regarding recycling and the  
proper disposal of the control, or of an old control containing mercury in a sealed tube.  
If you have questions, call Honeywell Inc. at 1-800-468-1502.  
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Table of Contents  
PAGE  
Features Of Your Thermostat .......................................................................................................... 4  
Setting The Temperature ................................................................................................................. 6  
Inserting Timer Batteries .................................................................................................................. 7  
Setting The Timer............................................................................................................................. 8  
Programming.................................................................................................................................... 9  
Troubleshooting ............................................................................................................................. 12  
Warranty......................................................................................................................................... 19  
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Features OfYour Thermostat  
1
FLlP-UP COVER. Lift it up to set timer for  
energy savings and comfort temperature  
periods.  
and low temperature at specific time of day  
as set by program pins.  
PROGRAM PINS. Must be inserted into 24-  
hour timer dial slots to control program  
index wheel.  
9
2
3
4
THERMOSTAT COVER. Lift up to show  
timer.  
THERMOMETER. Provides room tempera-  
ture reading.  
TEMPERATURE SETTING LEVERS Left  
4
1
2
(blue mark) controls the low temperature,  
right (red mark) controls the high tempera-  
ture.  
5
6
TIMER. This timer provides a 24-hour  
slotted dial to hold the programming pins.  
TIMER SETTING KNOB. Turn clockwise to  
match the correct AM or PM time to the time  
indicator.  
7
8
TIME INDICATOR. Arrow head indicates  
time for 24-hour dial.  
PROGRAM INDEX WHEEL. Controls high  
M8723  
3
4
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12  
5
6
10  
11  
O
B
R
G
W
Y
FAN  
COOL  
ON  
AUTO  
HEAT  
OFF  
M2385  
9
8
7
M8722  
1
0 PIN SLOTS. Located on 24-hour dial at  
0-minute intervals for program pin  
insertion.  
12 SUBBASE. Provides mounting base, wiring  
connections and manual switching control  
for heating/cooling thermostat.  
1
1
1 MERCURY BULB AND BIMETAL ELE-  
MENT (2). Provide automatic temperature  
control by switching the heating or cooling  
system on and off.  
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Setting The Temperature  
For Heating  
Set the left lever (blue mark) to the energy  
savings temperature you want when you are  
sleeping or your home is unoccupied.  
Set the right lever(red mark)to the tempera-  
ture you want for comfort periods.  
HIGH  
LOW TEMPERATURE  
SETTING LEVER  
TEMPERATURE  
SETTING  
LEVER  
50  
60 70  
80  
NOTE: You may bypass the time program by  
setting both the red and blue levers to the  
same temperature set point.  
50 60 70 80  
For Cooling  
Set the left lever (blue mark) to the tem-  
perature you want for comfort periods.  
Set the right lever (red mark) to the energy  
savings temperature you want when you are  
sleeping or your home is unoccupied.  
M8586  
Fig. 1—Setting high and low temperature  
levers.  
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BATTERY LOCATION FOR  
2) AAA BATTERIES;  
INSTALL WITH POSITIVE  
ENDS UP  
Inserting Timer Batteries  
(
Power is supplied to the timer by two AAA  
alkaline batteries (not included). Install the  
batteries in the thermostat as shown in Fig. 2.  
Once a year or when batteries are dead,  
replace with two new AAA alkaline batteries.  
We recommend Energizer® batteries.  
M8585  
Fig. 2—Inserting timer batteries.  
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Setting The Timer  
PROGRAM DIAL  
Lift thermostat flip-up cover, and you’ll find  
the 24-hour program dial, slotted in ten-minute  
increments. Adjust the timer to the current time  
PROGRAM  
PIN (6)  
TIMER  
by carefully turning the knob clockwise  
DO NOT reverse the knob.  
.
SETTING  
KNOB  
When time is correctly set, the Time Indica-  
tor Arrow (See Fig. 3) will point to the correct  
time and corresponding daytime (light) or night-  
time (dark) band of the program dial.  
TIME  
INDICATOR  
ARROW  
EXAMPLE: For 11 PM, the time indicator arrow  
will point directly to dark band on dial. For  
11 AM, the arrow will point to light band  
M821A  
on dial.  
Daylight Savings Time  
Fig. 3—Setting the timer.  
When Daylight Savings Time starts, carefully  
move the knob clockwise  
one hour. When  
Daylight Savings Time ends, carefully move the  
knob clockwise  
23 hours. DO NOT  
reverse the knob.  
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Programming  
24-HOUR PROGRAM DIAL  
GRAY AREA FOR NIGHT SETTINGS)  
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You can program your thermostat to  
automatically lower and raise the temperature  
one or more times every 24 hours.  
FLIP-UP  
COVER  
Before Setting Your Program  
Lift thermostat flip-up cover and you’ll find  
the 24-hour program dial. The slots on the  
program dial (Fig. 4) are for the program pins  
which can be inserted at ten-minute intervals.  
Three red and three blue program pins are  
included with your thermostat. The red pins  
start the high-temperature period; the blue pins  
start the low-temperature period. A heating  
program was preprogrammed. A red pin is  
inserted at 6:00 AM for high temperature  
PROGRAM  
PINS  
THERMOSTAT  
COVER  
PROGRAM  
PIN SLOT  
PROGRAM INDEX WHEEL  
TIME INDICATOR ARROW  
PROGRAM  
PIN STORAGE  
M7348  
(
1
comfort period); a blue pin is inserted at  
0:00 PM for low temperature (energy saving  
Fig. 4—Program components.  
period). Two additional sets of pins are located  
in the program pin storage area.  
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You can set up to six temperature changes  
with the pins supplied. We recommend at least  
five hours for each energy savings period.  
To change the pins or add a new energy  
savings period—  
Setting the Heating Program  
Decide when you want the temperature to  
reach the comfort level. Find the notch on the  
program dial that is one-half hour before this  
time and insert a red pin. The half-hour head  
start gives the furnace time to heat the house  
•
To insert a pin, push it straight into the  
selected notch on the program dial until it is before you wake up or arrive home.  
completely seated.  
•
To remove a pin, press against program  
dial and pull the pin straight out. DO NOT  
attempt to change a pin if it is engaged with  
the program index wheel.  
On heating-cooling systems, you must  
remove the program pins from the heating  
program to set new times for your cooling  
program. Write down your colors and time  
for reprogramming at the next heating  
season. Also, you may want to change the  
temperature setting lever positions.  
WINTER  
SUMMER  
1
PROGRAM  
TEMPERATURE PIN IN  
PROGRAM  
PIN IN  
TEMPERATURE  
°
F
°C  
CONTROL  
°F  
°C  
27  
CONTROL  
NIGHT  
BEGINS  
ENERGY 10:00 PM  
SAVING ENDS  
PERIOD 6:00 AM  
5
8
14  
BLUE  
80  
RED  
BLUE  
RED  
•
68  
58  
20  
14  
20  
RED  
BLUE  
RED  
75  
24  
27  
24  
DAY  
BEGINS  
ENERGY 7:30 AM  
80  
SAVING  
PERIOD  
ENDS  
6
8
75  
BLUE  
4:00 PM  
1
NOT APPLICABLE ON HEATING-ONLY MODEL.  
M8677  
Fig. 5— Program examples.  
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Decide when you want the energy savings  
period to start and insert a blue pin at the notch  
that corresponds to this time. After the blue pin  
engages, the furnace will be off until room  
temperature drops to the energy savings set  
point.  
Setting the Cooling Program  
Decide when you want the temperature to  
reach the comfort level. Find the notch on the  
program dial that is one-half hour before this  
time and insert a blue pin. The half-hour head  
start gives the air conditioner time to cool the  
house before you wake up or arrive home.  
Decide when you want the energy savings  
period to start and insert a red pin at the notch  
that corresponds to this time. After the red pin  
engages, the air conditioner will be off until  
room temperature rises to the energy savings  
setpoint.  
You can set both a day and night program.  
See Fig. 5. for program examples.  
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Troubleshooting  
Your Honeywell thermostat requires little or no attention. Most problems can generally be  
traced to the following:  
Problem  
No heat.  
Check  
Action  
— system switch. May be in OFF or  
COOL position.  
Move system switch to HEAT position.  
—
fuse or circuit breaker.  
If blown or tripped, replace fuse or reset  
breaker.  
—
—
furnace power switch. May be Off. Move switch to ON.  
pilot flame. May be out. Relight pilot flame per furnace manufacturers  
instructions.  
—
R and W thermostat connections. Turn Off power to furnace. Check for correct  
terminal hookups. Repair any frayed or  
broken wires. Firmly tighten all terminal  
screws. Turn On power.  
(
continued)  
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Troubleshooting (continued)  
Problem  
Check  
Action  
No heat (continued). — other problem.  
Contact a qualified service technician for  
assistance.  
Energy savings  
temperature program  
— program dial for proper day or  
night phase.  
Turn timer ahead 12 hours. Move setting  
knob clockwise  
only.  
12 hours off.  
Rooms do not warm  
up at programmed  
time.  
— timer program for heating system. Move red pin one-half hour earlier on the  
May need more time to warm up  
rooms.  
program dial.  
Temperature change — programs pins for correct time  
Relocate pins to desired settings.  
occurs at the wrong  
time.  
locations.  
Room temperatures  
are not correct.  
— positions of thermostat setpoint  
levers.  
Reset to desired temperatures.  
—
position of subbase system  
switch.  
Move to desired operating position.  
(
continued)  
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Troubleshooting (continued)  
Problem  
Check  
Action  
Room temperatures  
are not correct  
— thermostat circuits.  
HEATING/COOLING SYSTEM—With  
system switch at HEAT, move temperature  
setting levers 5°F (3°C) above room  
temperature. Heating system should start.  
With system switch at COOL, move  
temperature setting levers 5°F (3°C) below  
room temperature. Cooling system should  
start. IF THE SYSTEMS DO NOT  
OPERATE, CALL A QUALIFIED  
(continued).  
TECHNICIAN.  
No cooling.  
— system switch. May be in OFF  
or HEAT position.  
Move switch to COOL position.  
—
fuse or circuit breaker.  
If fuse is blown or breaker tripped, replace or  
reset.  
—
condenser switch position.  
Located outdoors and may be  
turned OFF.  
Move to ON position.  
(
continued)  
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Troubleshooting (continued)  
Problem  
Check  
Action  
No cooling  
continued).  
— Y and R thermostat connections. Turn Off power to cooling system. Check for  
correct terminal hookups. Repair any frayed  
or broken wires. Firmly tighten all terminal  
screws.  
(
—
other problems.  
Contact a qualified service technician for  
assistance.  
Timer is losing time.  
— batteries. May be dead.  
Replace with two new AAA alkaline batteries  
as shown on page 7.  
Thermostat setting  
and thermometer  
reading disagree.  
— level position of thermostat.  
Reinstall thermostat subbase. Use a spirit  
level.  
—
area around thermostat for drafts  
or radiant heat.  
Thermostat should be about 5 ft (1.5m)  
above floor on an inside wall. Contact  
qualified service technician for change of  
location.  
—
calibration of thermometer.  
See instructions on page 16.  
If Troubleshooting section has not solved the problem, call a qualified service technician or  
Honeywell Customer Assistance Center at 1-800-468-1502, Monday - Friday, 7:00 AM to 5:30 PM,  
Central time, for additional assistance.  
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Servicing The Thermostat  
If the set point lever and the thermometer  
reading do not agree, follow the procedure on  
the next page.  
Cycle Rate Adjustment  
The equipment should cycle on and off just  
enough to keep the room temperature close to  
the temperature lever settings.  
If the thermostat seems to cycle the heating  
system too fast or too slow, adjust the cycle  
rate by moving the anticipator setting lever one  
indicator mark at a time (Fig. 6). Observe the  
heating system operation after each adjust-  
ment.  
ANTICIPATOR  
SCALEPLATE  
NOTE: Most hot water systems require a  
setting of 1.2A.  
ANTICIPATOR  
SETTING LEVER  
M7317  
Thermometer Adjustment  
The thermometer has been accurately  
calibrated at the factory and should only need  
adjustment if it was mishandled.  
Fig. 6—Heat anticipator setting.  
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Remove thermostat cover and open the flip-  
up cover.  
THERMOMETER  
SLOT  
BACKSIDE OF  
FLIP-UP COVER  
Set the thermostat cover on a table near  
thermometer of known accuracy.  
Allow at least five minutes for cover  
thermometer to sense area temperature, then  
compare the readings. Be careful not to touch  
thermometer or breathe on it.  
INSERT AND TURN  
SCREWDRIVER  
If the readings are the same, replace cover  
and put the system into operation.  
If the readings are different, insert a small  
screwdriver in the thermometer slot, shown in  
Fig. 7, and turn it until both thermometers  
read the same.  
M1810  
Replace thermostat cover and put the  
system into operation.  
Fig. 7—Thermometer adjustment.  
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If you have questions regarding the installation and programming of your Honeywell thermo-  
stat, please contact the Honeywell Customer Assistance Center at 1-800-468-1502, Monday -  
Friday, 7:00 AM to 5:30 PM, Central time. Before you call, please have the following information  
available: make and model of furnace, thermostat, and air conditioner.  
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Limited One-Year Warranty  
Honeywell warrants this product to be free from defects in the 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 detective or malfunctions, Honeywell shall  
repair or replace it (at Honeywell’s option) within a reasonable period of time.  
If the product is detective,  
(I) return it, with a bill of sale or other dated proof-of-purchase, to the dealer or contractor 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.  
Return Goods Department  
1050 Berkshire Lane  
Plymouth, MN 55441-4437  
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 questions concerning this warranty, please write our Customer Assistance Center, Honeywell Inc.., P.O. Box 524, Minneapolis, MN  
55440-0524 or call 1-800-468-1502, Monday - Friday, 7:00 a.m. to 5:30 p.m., Central time.  
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Honeywell Inc. Honeywell Limited—Honeywell Limitée  
985 Douglas Drive No.  
Golden Valley, MN 55422  
Helping You Control Your World  
1
740 Ellesmere Road  
Scarborough, Ontario  
M1P 2V9  
D.F. ©Honeywell Inc. 1994 Printed in Mexico Rev. 11-94 Form Number 69-0636—1  

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