Honeywell TS8095A191108AC Thermostat User Manual

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T8095A/191108AJ; TS8095A/191108AC; T8095A/Q682  
Heating-only Thermostat and Wallplate or  
Heating/Cooling Thermostat and Subbase  
OWNER’S MANUAL  
D.F. • Rev. 10-94 •  
• ©Honeywell Inc. 1994 • Form Number 69-0639—1  
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Welcome to the world of energy savings with  
your new Honeywell thermostat. The Honeywell  
name is your assurance of accurate control and  
reliable operation for years to come.  
Recycling Notice  
This control contains mercury in a sealed tube.  
Do not place control in the trash at the end of its  
useful life.  
Your new thermostat will automatically lower and  
raise the temperature in your home one or more  
times every 24 hours. This allows you to signifi-  
cantly lower your fuel costs, while awakening (or  
returning home) to a comfortable temperature.  
If this control is replacing a control that contains  
mercury in a sealed tube, do not place your old  
control in the trash.  
Read this manual to learn how to use your new  
thermostat.  
Contact your local waste management authority  
for instructions regarding recycling and the  
proper disposal of this control, or of an old control  
containing mercury in a sealed tube.  
If you have questions, call Honeywell Inc. at  
1-800-468-1502.  
2
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Table of Contents  
Page  
Features of Your Thermostat ............................................................................................................. 4  
Setting the Temperature ..................................................................................................................... 7  
Setting Subbase Switches ................................................................................................................. 8  
Inserting Clock Batteries .................................................................................................................... 9  
Setting the Clock...............................................................................................................................10  
Programming .................................................................................................................................... 11  
Troubleshooting ................................................................................................................................15  
Servicing the Thermostat ..................................................................................................................23  
Cycle Rate Adjustment .................................................................................................................23  
Thermometer Adjustment .............................................................................................................24  
Warranty ...........................................................................................................................................27  
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Features of Your  
2
3
4
THERMOSTAT COVER. Lift up and  
remove to adjust heat anticipator.  
THERMOMETER. Provides accurate room  
temperature reading.  
PROGRAM INDICATOR. Blue indicates low  
temperature is in effect; red indicates high  
temperature is in effect.  
Thermostat  
1
2
5
6
CLOCK. Provides a 24-hour slotted dial to  
hold the programming pins.  
CLOCK HANDS. Turn minute hand  
clockwise  
to match the correct AM or  
PM time to the time indicator.  
7
TIME INDICATOR. Arrow head (triangle  
shape) indicates blue (low) temperature  
setting or red (high) temperature setting in  
control on program index wheel. Also  
indicates time on 24-hour dial.  
4
3
M7318  
1
FLIP-UP COVER. Lift up to set clock for  
energy savings and normal temperature  
periods.  
8
PROGRAM INDEX WHEEL. Controls high  
and low temperature at specific time of day  
as set by program pins.  
4
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9
TEMPERATURE SETTING LEVERS. Left  
blue mark) controls low temperature and  
16 MERCURY BULB AND BIMETAL ELE-  
MENT (2). Provide automatic temperature  
control by switching the heating or cooling  
system on or off.  
(
right (red mark) controls the high temperature.  
0 PROGRAM PINS. Insert into 24-hour clock  
dial slots to control program index wheel.  
PIN SLOTS. Located on 24-hour dial at  
1
11  
6
5
11  
9
16  
1
0-minute intervals for program pin insertion.  
12  
PROGRAM DIAL. 24-hour dial with light  
band to indicate daytime and dark band to  
indicate nighttime.  
13  
MANUAL PROGRAM ADVANCE BUTTON.  
Allows change from comfort to energy  
savings setting and vice versa without  
changing the program.  
1
4
5
HEAT ANTICIPATOR SCALEPLATE.  
Calibrated to match the heating system  
current draw in amperes.  
ANTICIPATOR SETTING LEVER. Adjust to  
match the heating system primary control  
current.  
1
10  
12  
8
7
13  
14  
15  
M7316  
5
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1
7
8
191108 WALLPLATE. Provides mounting  
base and wiring connections for heating-  
only or cooling-only thermostat.  
1
Q682 SUBBASE (not included with  
thermostat; ordered separately). Provides  
mounting base, wiring connections and  
manual switching control for heating/cooling  
thermostat. See Setting Subbase Switches  
section for additional information.  
17  
O
B
R
G
W
Y
18  
FAN  
COOL  
ON  
AUTO  
HEAT  
OFF  
M1809  
6
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Setting the Temperature (Fig. 1)  
For Heating:  
Set the left lever (blue mark) to the energy  
savings temperature you want when you are  
sleeping or your home is unoccupied.  
HIGH  
LOW TEMPERATURE  
SETTING LEVER  
TEMPERATURE  
SETTING  
LEVER  
(BLUE MARK)  
Set the right lever (red mark) to the tempera-  
ture you want for normal comfort periods.  
(RED MARK)  
50  
60 70  
80  
NOTE: You may override the time program by  
setting both the red and blue levers to the  
same temperature setpoint.  
12  
10  
4
50  
60 70 80  
9
3
4
1 0  
For Cooling:  
6
Set the left lever (blue mark) to the tempera-  
ture you want for normal comfort periods.  
Set the right lever (red mark) to the energy  
savings temperature you want when you are  
sleeping or your home is unoccupied.  
M1520  
Fig. 1—Setting high and low temperature levers.  
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Setting Subbase Switches (If Applicable)  
The subbase system switch controls system  
operation as follows:  
The subbase fan switch controls fan operation  
as follows:  
HEAT—Heating system is controlled by the  
thermostat. Cooling system is off.  
COOL—Cooling sytem is controlled by the  
thermostat. Heating system is off.  
OFF—Both the heating and cooling sytems are  
off. If the fan switch is in the AUTO position,  
the fan is also off.  
ON—Fan operates continuously.  
AUTO—Fan operates with cooling equipment as  
controlled by the thermostat or with heating  
equipment as controlled by the plenum fan  
switch. In electric heat, heat pump and fan coil  
systems, the fan is controlled by the thermo-  
stat in heating and cooling.  
AUTO—In cooling only application, only cooling  
operates. In heating only applications, only  
heating operates.  
To switch positions, use thumb or index finger  
to slide lever to desired position. Switch lever  
must stop in detent over desired function  
indicator mark for proper circuit operation.  
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Inserting Clock Batteries  
BATTERY LOCATION FOR  
2) AAA BATTERIES;  
INSTALL WITH POSITIVE  
ENDS UP  
Power is supplied to the clock by the 24 Vac  
transformer. Backup batteries (not included) may  
be installed to supply power to the clock when  
power is interrupted. Install batteries in thermo-  
stat as shown in Fig. 2. Once a year or when  
batteries are dead, replace with two new AAA  
alkaline batteries. We recommend Energizer  
batteries.  
(
M7188  
Fig. 2—Inserting Clock Batteries.  
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Setting the Clock  
Lift thermostat flip-up cover to find the 24-hour  
program dial, slotted in 10-minute increments.  
Adjust the clock to the current time by moving  
the minute hand carefully in a clockwise  
direction. Do not reverse the minute hand.  
After setting the time correctly, the Time  
Indicator Arrow (triangle shape) will point to  
the correct time and corresponding daytime  
one hour. When Daylight Savings Time ends, move  
the minute hand carefully in a clockwise direc-  
tion 23 hours. Do not reverse the minute hand, or  
damage to the timer mechanism may occur.  
PROGRAM DIAL  
MINUTE  
HAND  
(
light) or night-time (dark) band of the program  
dial. See Fig. 3.  
EXAMPLE: For 11 PM, the time indicator arrow  
will point directly to the dark band. For 11 AM,  
the arrow will point to the light band on the dial.  
TIME  
INDICATOR  
ARROW  
Daylight Savings Time  
TIME INDICATOR ARROW  
When Daylight Savings Time starts, move the  
M1813  
minute hand carefully in a clockwise  
direction  
Fig. 3—Setting the clock.  
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Programming  
You can program your thermostat to automati-  
cally lower and raise the temperature one or  
more times every 24 hours, depending on the  
number of program pins used.  
2
4-HOUR PROGRAM DIAL  
(GRAY AREA FOR  
NIGHT SETTINGS  
FLIP-UP  
COVER  
Before setting your program  
Lift thermostat flip-up cover to find the 24-hour  
program dial. The slots on the program dial  
PROGRAM  
PINS  
(Fig. 4) are for the program pins that can be  
inserted at 10-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 is preprogrammed. A red pin  
is inserted at 6:00 A.M. for high-temperature  
THERMOSTAT  
COVER  
PROGRAM PIN SLOT  
PROGRAM PIN  
STORAGE  
PROGRAM INDEX WHEEL  
TIME INDICATOR  
ARROW  
MANUAL PROGRAM  
ADVANCE BUTTON  
M7319  
(
1
comfort period); a blue pin is inserted at  
0:00 P.M. for low-temperature (energy saving  
Fig. 4—Program Components.  
69-0639—1  
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period). Two additional sets of pins are located  
in the program pin storage area. You can set  
up to six temperature changes with the pins  
supplied. We recommend at least five hours  
for each energy saving period.  
also probably want to change the lever  
positions.  
Setting the Heating Program:  
Decide when you want the temperature to  
reach the comfort level. Find the notch on the  
dial that is one-half hour before this time and  
insert a red pin. The high temperature is in  
effect. The half-hour head start period gives  
the furnace time to heat the house before you  
awaken or arrive home.  
To change the pins or add a new energy  
saving period—  
To insert a pin, push it straight into the  
selected notch on the program dial until it is  
completely seated.  
To remove a pin, press against the program  
dial and pull the pin straight out. Do not  
attempt to change a pin if it is engaged with  
the program index wheel.  
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 low temperature is in effect. The  
furnace will be off until room temperature drops  
to the energy saving setpoint.  
On heating/cooling systems, set the  
subbase switches to the desired positions.  
See Setting Subbase Switches section.  
On heating/cooling systems, you must reset  
the pins when the seasons change. You will  
You can set both a day and a night program.  
See Fig. 5 for program examples.  
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WINTER  
PROGRAM  
SUMMER  
PROGRAM  
TEMPERATURE PIN IN  
Setting the Cooling Program:  
 Decide when you want the temperature to  
reach the comfort level. Find the notch on the  
dial that is one-half hour before this time and  
insert a blue pin. The low temperature is in  
effect. The half-hour head start period gives  
the air conditioner time to cool the house  
before you awaken or arrive home.  
TEMPERATURE PIN IN  
°
F
°C  
14  
CONTROL  
°F  
°C  
CONTROL  
NIGHT  
BEGINS  
ENERGY 10:00 PM  
58  
BLUE  
80  
27  
RED  
SAVING ENDS  
PERIOD 6:00 AM  
68  
58  
20  
RED  
BLUE  
RED  
75  
80  
75  
24  
27  
24  
BLUE  
RED  
DAY  
BEGINS  
14  
ENERGY 7:30 AM  
SAVING  
PERIOD  
ENDS  
68  
20  
BLUE  
4:00 PM  
M1690B  
 Decide when you want the energy saving  
period to start and insert a red pin at the notch  
that corresponds to this time. After the red pin  
engages, the high temperature is in effect.  
The air conditioner will be off until room  
temperature rises to the energy saving  
setpoint.  
Fig. 5—Programming Examples.  
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Press the button to immediately begin an  
energy savings period or return to the normal  
setting. After pressing the button, check the  
program indicator on the thermostat cover to  
assure the system is in the desired mode. If the  
program indicator shows blue, the lower tempera-  
ture is in effect; if it shows red, the higher  
Start or End Programs with  
Manual Program Advance Button  
IMPORTANT: To prevent damage to the program  
advance mechanism, DO NOT use the  
program advance button within a 30-minute  
period before or after a program change.  
temperature is in effect. Using the manual  
advance button will not affect the stored program.  
The manual program advance button enables  
immediate, one-time-only program changes to  
accommodate temporary schedule changes.  
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Troubleshooting  
Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to  
the following:  
Problem  
Check  
Action  
No heat.  
—system switch. May be in OFF  
or COOL position.  
Move system switch to HEAT position.  
See page 8.  
2
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 according to furnace  
manufacturer’s instructions.  
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  
other.  
Action  
Contact a qualified service technician  
for assistance.  
Energy savings  
temperature pro-  
gram 12 hours off.  
—program dial for proper day  
or night phase.  
Turn clock ahead 12 hours. Move  
minute hand clockwise  
only.  
Rooms do not  
warm up at pro-  
grammed time.  
—timer program for heating  
system. May need more time  
to warm up rooms.  
Move red pin one-half hour earlier  
on the program dial.  
2
Temperature  
change occurs  
at the wrong time.  
—program pins for correct time  
locations.  
Relocate pins to desired settings.  
Reset to desired temperatures.  
Room  
temperatures  
are not correct.  
—positions of thermostat set  
point levers.  
position of subbase system  
switch (heating-cooling model).  
Move to desired operating position.  
Refer to page 8.  
(Continued)  
16  
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Troubleshooting (Continued)  
Problem  
Check  
Action  
Room  
temperatures  
are not correct  
—thermostat circuits.  
HEATING-ONLY SYSTEM—Move  
temperature setting levers 5° F [3° C]  
above room temperature. Heating system  
should start. If the system does not  
operate, call a qualified service technician.  
COOLING-ONLY SYSTEM—Move  
temperature setting levers 5° F [3° C]  
below room temperature. Cooling system  
should start. If the system does not  
operate, call a qualified service technician.  
HEATING/COOLING SYSTEM—With  
system switch at HEAT, move tempera-  
ture setting levers 5° F [3° C] above  
room temperature. Heating system  
should start. With system  
(continued).  
(Continued)  
17  
69-0639—1  
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Troubleshooting (Continued)  
Problem  
Check  
Action  
Room  
temperatures  
are not correct  
switch at COOL, move temperature  
setting levers 5° F [3° C] below room  
temperature. Cooling system should  
start. If the system does not operate, call  
a qualified service technician.  
(continued).  
Burner-on time  
too short.  
—anticipator setting. (See Fig. 6  
for anticipator location.)  
Increase anticipator setting by 0.05.  
Observe burner operation.  
Burner-on time  
too long.  
—anticipator setting. (See Fig. 6  
for anticipator location.)  
Decrease anticipator setting by 0.05.  
Observe burner operation.  
No cooling.  
—system switch. May be in OFF  
or HEAT position.  
Move switch to COOL position.  
See page 8.  
1
fuse or circuit breaker.  
If fuse is blown or breaker tripped,  
replace or reset.  
(Continued)  
18  
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Troubleshooting (Continued)  
Problem  
Check  
Action  
No cooling  
(
—condenser switch position.  
(Located outdoors and may  
be turned OFF.)  
Move to ON position.  
1
continued).  
thermostat connections. Check  
for correct terminal hookups.  
Turn OFF power to cooling system.  
Repair any frayedor broken wires.  
Firmly tighten all terminal screws.  
other.  
Contact a qualified service technician  
for assistance.  
Thermostat setting —level position of thermostat.  
and thermometer  
Reinstall thermostat wallplate or  
subbase. Use a spirit level.  
reading disagree.  
area around thermostat for  
drafts or radiant heat.  
Thermostat should be about 5 ft [1.5m]  
above floor on an inside wall. Contact a  
qualified service technician for change  
of location.  
(Continued)  
19  
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Troubleshooting (Continued)  
Problem Check  
Action  
Thermostat setting —calibration of thermometer.  
and thermometer  
See instructions on page 24.  
reading disagree.  
(continued).  
Clock does not run. —voltage across the two  
C terminals.  
Remove thermostat from the wallplate  
or subbase and measure the voltage.  
Refer to the table on page 22 for cause  
and reaction.  
pins in program dial. If pins are  
Push down on pins to make sure they  
are completely seated in program dial.  
not completely seated in  
program dial, jamming with  
index wheel may occur.  
Clock loses time.  
—power. May be interrupted.  
Make sure power is on. Reset clock.  
(Continued)  
20  
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Troubleshooting (Continued)  
Problem  
Check  
Action  
Clock loses time.  
—high limit control. If clock-  
powered through system trans-  
former, power to clock and  
Wire separate transformer to power  
clock, or install backup batteries as  
shown on page 9.  
(continued).  
equipment may be off for safety.  
filter. May be clogged. Safety  
limit on equipment may cut off  
power to system.  
Replace filter and reset clock.  
backup batteries may need  
replacement.  
Replace with two new AAA alkaline  
batteries. See page 9.  
1
2
Not applicable on model used in heating-only system.  
Not applicable on model used in cooling-only system.  
If this Troubleshooting section has not solved the problem, call a qualified service technician or  
Honeywell Assistance Center, 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30 p.m., Central time,  
for additional assistance.  
21  
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Voltage at Clock Terminals  
AC Voltage at  
C-C Terminals  
Check  
Action  
0
Vac.  
— System power off.  
— Restore power.  
— Replace wiring.  
— Free or replace limit switch.  
— Replace transformer.  
Short in clock power supply wiring.  
Limit switch contacts stuck open.  
Transformer supplying power is  
burned out.  
Up to 15 Vac.  
— System transformer used to power  
the clock is inadequate.  
— Use additional (separate)  
transformer.  
Additional (separate) transformer  
used to power the clock has  
inadequate voltage.  
— Install transformer with proper  
secondary voltage.  
15 to 30 Vac.  
— Spring fingers on thermostat not  
making proper contact with subbase  
terminals.  
— Rebend spring fingers to a  
45 degree angle to assure  
proper contact.  
Clock has failed.  
— Replace thermostat.  
22  
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Servicing the Thermostat  
Cycle Rate Adjustment  
(
T8095A only)  
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 adjustment.  
ANTICIPATOR  
SCALEPLATE  
ANTICIPATOR  
SETTING LEVER  
M7317  
NOTE: Most hot water systems require a setting  
of 1.2A.  
Fig. 6—Heat Anticipator Setting.  
23  
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6
. Replace the thermostat cover and put the  
Thermometer Adjustment  
system into operation.  
The thermometer was accurately calibrated at  
the factory and should only need adjustment if it  
was dropped or mishandled.  
If the setpoint lever and the thermometer  
reading do not agree, use the following procedure:  
THERMOMETER  
SLOT  
BACKSIDE OF  
FLIP-UP COVER  
1. Remove thermostat cover and open the  
flip-up cover.  
2
. Set the thermostat cover on a table near a  
INSERT AND TURN  
SCREWDRIVER  
thermometer of known accuracy.  
3. 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.  
4
. If the readings are the same, replace the  
cover and put the system into operation.  
. If the readings are different, insert a small  
M1810  
5
screwdriver in the thermometer slot, see Fig. 7,  
and turn it until both thermometers read the  
same.  
Fig. 7—Thermometer Adjustment.  
24  
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If you have questions regarding the installation and programming of your Honeywell thermostat,  
please contact the Honeywell Customer Assistance Center at 1-800-468-1502, Monday-Friday, 7:30 a.m.  
to 4:00 p.m., Central time. Before you call, please have the following information available: make and  
model of furnace, old thermostat, and air conditioner.  
25  
69-0639—1  
26  
Limited One-Year Warranty  
Honeywell warrants this product, excluding battery, 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 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 dealer or contractor from which you purchased it, or  
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:  
(ii)  
Honeywell Inc.  
in Canada  
Returned Goods Department  
Honeywell Limited/Honeywell Limitee  
740 Ellesmere Road  
1050 Berkshire Lane  
Plymouth, MN 55441-4437  
Scarborough, Ontario M1P2V9  
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 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.  
27  
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Automation and Control Solutions  
Honeywell International Inc. Honeywell Limited—Honeywell Limitée  
985 Douglas Drive North  
Golden Valley, MN 55422  
1
35 Dynamic Drive  
Scarborough, Ontario M1V 4Z9  

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