Honeywell 191108AJ Thermostat User Manual

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T8190A/191108AJ Heating or Cooling  
Thermostat/Wallplate; T8190A/Q682B  
Heating/Cooling Thermostat/Subbase  
Installation Instructions for the Trained Service Technician.  
NOTE: Order Q682B Subbase separately.  
Preparation  
Check thermostat and subbase (if used) suitability for the  
heating, cooling, or heating/cooling system. Refer to Table 1.  
Assemble tools required: flat-bladed screwdriver, hand  
or power drill with 3/16-in. drill bit, wire cutter/stripper or  
sharp knife, bubble level or plumb bob and line.  
Assure power is off to the heating, cooling, or heating/  
cooling system at the main fuse panel. Most buildings have  
a separate switch box or circuit breaker for disconnecting  
power to the heating and cooling (if applicable) equipment.  
This thermostat is compatible with all heating, cooling or  
heating/cooling systems when thermostat is powered by  
batteries. If thermostat is not powered by batteries, refer to  
Table 1 for thermostat and system compatibility information.  
Recycling Notice  
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 in-  
structions 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.  
TABLE 1—SYSTEM COMPATIBILITY FOR NON-BATTERY POWERED THERMOSTATS.  
Type of Heating System to be Controlled Conditions/Compatibility  
Electric (Line Voltage)—typical baseboard • The R8239D1015 Isolating Relay or R841 Silent Switching Center  
a
and radiant  
must be installed in the thermostat control circuit.  
Fan Coil Unit  
• Compatible. Assure correct subbase identity is selected for fan  
control.  
Gas—Direct Spark Ignition (DSI),  
Intermittent Pilot (IP), and Standing  
Pilot (SP)  
• Compatible. If not using battery backup, assure that 24V control  
transformer common is accessible for connection to thermostat  
cable conductor and power to the transformer is not regularly  
interrupted by high temperature or limit operation.  
Heat Pump  
• Compatible. Assure correct subbase identity is selected for  
fan control and changeover control (O terminal for cool and  
B terminal for heat).  
Hot Water Zone  
• Honeywell 2-wire valves are compatible.  
Some non-Honeywell 2-wire valves require an R8239D1015  
Isolating Relay in the thermostat control circuit.  
a
Some 3-wire valves require an R8239A1052 Isolating Relay in the  
thermostat control circuit.  
a, b  
Oil  
• If not using battery backup, assure that the 24V control transformer  
common is accessible for connection to thermostat cable conductor  
and power to the transformer is not regularly interrupted by high  
temperature, purge cycle, or limit operation.  
Vent Damper  
• Honeywell damper motors are compatible.  
Some non-Honeywell damper motors require an R8239D1015  
Isolating Relay in the thermostat control circuit. Check control  
a
amperage requirement.  
Warm Air Zone  
• Most are compatible.  
a
If thermostat is not compatible with the system being controlled, the system will not operate. No hazard exists. The  
thermostat will not be damaged unless it is used to directly control a line voltage system. For proper system operation, a  
Honeywell R841 or R8239D1015 Isolating Relay must be added to the thermostat control circuit.  
Consult manufacturer for installation requirements.  
b
D.F. • Rev. 12-94 •
• ©Honeywell Inc. 1994 • Form Number 69-06421  
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Remove and discard the shipping wrap.  
Installation  
IMPORTANT: Save package of screws and instructions  
WHEN INSTALLING THIS PRODUCT…  
. Read these instructions carefully. Failure to follow  
them could cause a hazardous condition.  
. Installer must be a trained experienced service technician.  
. After installation is complete, check out product op-  
for the homeowner.  
1
Remove the thermostat cover by lifting from the bottom.  
Set aside cover until needed later.  
Carefully remove the material protecting the mercury  
switch bulb.  
2
3
eration as provided in these instructions.  
Loosen two captive mounting screws and separate  
wallplate (if provided) from back of thermostat base.  
IMPORTANT: An incorrectly leveled subbase will cause  
the temperature control to deviate from setpoint. It is  
not a calibration problem.  
Fig. 1—Unpack thermostat.  
CAUTION  
CAPTIVE MOUNTING  
SCREWS  
THERMOSTAT  
COVER  
1
. Disconnect power supply to prevent electrical  
shock or equipment damage.  
2
. To prevent interference with the thermostat link-  
age, keep wire length to a minimum and run wires  
as close as possible to the subbase.  
1
11  
3
. Do not overtighten thermostat captive mounting  
screws because damage to subbase threads can result.  
. Do not short across coil terminals on relay. This  
can burn out the thermostat heat anticipator.  
35  
3
0
4
LIFT  
COVER  
2
20  
10  
5
LOCATION  
THERMOSTAT BASE  
REMOVE  
PACKING  
MATERIAL  
Locate thermostat about 5 ft [1.5m] above the floor in an  
area with good air circulation at average temperature.  
Do not mount the thermostat where it may be affected by:  
M8673  
drafts, or dead spots behind doors and in corners.  
hot or cold air from ducts.  
radiant heat from the sun or appliances.  
concealed pipes and chimneys.  
unheated (uncooled) areas such as an outside wall  
behind the thermostat.  
MOUNT WALLPLATE OR SUBBASE  
Wall Mounting (Fig. 2)  
Hold the wallplate or subbase in position on wall (Fig. 2).  
Mark holes on the wall for anchors. Use spirit level to  
make sure the wallplate or subbase is level.  
Drill 3/16-in. holes, and gently tap anchors into holes  
until flush with the wall.  
Run wires from the heating, cooling or heating/cooling  
equipment to the new thermostat location.  
Refer to the Typical Wiring Diagrams section to deter-  
mine the number of wires required for your application.  
Pullwiresthroughthelargewiringholeinthewallplateor  
subbase.  
UNPACK THERMOSTAT  
Loosely fasten the wallplate or subbase to the wall with  
the three screws. Do not completely tighten the screws.  
Carefully level the wallplate or subbase (Fig. 3), and  
firmly tighten the screws.  
Handle your new thermostat carefully; rough handling  
may interfere with its accuracy. Before unpacking, refer to  
Fig. 1.  
Fig. 2—Mounting wallplate or subbase to wall.  
3
SCREW HOLES  
3
SCREW HOLES  
WITH PLASTIC  
ANCHORS  
WITH PLASTIC  
ANCHORS  
WALLPLATE  
O
B
R
G
W
Y
FAN  
COOL  
ON  
AUTO  
HEAT  
OFF  
HEATING/COOLING SUBBASE  
M1552A  
M1815  
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Outlet Box Mounting (Fig. 4)  
Fig. 3—Leveling methods for wallplate or  
subbase.  
Use a horizontally mounted outlet box if possible. If a  
vertical outlet box is used, mount the wallplate or subbase on  
a 193121A (beige) Cover Plate Assembly (ordered sepa-  
rately). Follow the instructions provided with the cover  
plate assembly.  
Align the wallplate or subbase mounting holes on the  
outlet box and loosely fasten with two screws.  
Carefully level the wallplate or subbase (Fig. 3), and  
firmly tighten the screws.  
SPIRIT LEVEL  
PLUMB  
LINE  
O
WIRE WALLPLATE OR SUBBASE  
B
R
G
Follow the instructions provided by the heating, cooling,  
or heating/cooling equipment manufacturer. If not available,  
refer to the Typical Wiring Diagrams section at the end of  
this publication.  
Disconnect the power supply before making wiring con-  
nections to prevent electrical shock or equipment damage.  
W
Y
PLUMB  
BOB OR  
WEIGHT  
FAN  
COOL  
ON  
AUTO  
HEAT  
OFF  
M1555  
Fig. 4—Mounting wallplate or subbase on horizontal outlet box.  
EXISTING  
EXISTING  
HORIZONTAL  
OUTLET BOX  
HORIZONTAL  
OUTLET BOX  
O
R
B
R
W
W
HEATING/  
COOLING  
SUBBASE  
G
WALLPLATE  
Y
FAN  
COOL  
ON  
AUTO  
HEAT  
OFF  
M1816  
M1553A  
VERTICAL  
OUTLET  
BOX  
1
2
COVER  
PLATE  
ADAPTER  
RING  
2
O
B
W
R
G
SUBBASE OR  
WALLPLATE  
MOUNTING  
SCREWS (2)  
1
2
NOT INCLUDED WITH UNIT.  
M1554A  
ACCESSORY PARTS AVAILABLE.  
NOTE: All wiring must comply with local electrical codes  
and ordinances.  
For Wallplate (Heating or Cooling Systems)  
Refer to Fig. 5 and strip the thermostat wire insulation as  
necessary.  
This thermostat clock can be powered by a 24 Vac trans-  
former with battery backup. Refer to Figs. 15 through 19 for  
hookup diagrams of typical powering applications.  
For heating-only systems, connect wires to R, W, and C  
(ifapplicable)terminals (Fig.20).Forcooling-onlysystems,  
connect wires R, Y, and C (if applicable) terminals. Firmly  
tighten the screws.  
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Push excess wire back into the wall.  
Plug the hole in wall with nonhardening caulk, putty, or  
nonflammable insulation to prevent drafts from affecting  
the thermostat operation.  
Plug the hole in the wall with nonhardening caulk, putty,  
or nonflammable insulation to prevent drafts from affecting  
thermostat operation.  
Subbase (Heating/Cooling Systems)  
Refer to Fig. 5 and strip the thermostat wire insulation as  
necessary.  
Connect the wires to the corresponding terminals on the  
subbase. If labels do not agree with your new subbase, refer  
to Table 2 and the installation instructions furnished with  
the subbase.  
Fig. 5—Methods of connecting terminals.  
FOR STRAIGHT  
CONNECTION—  
STRIP 5/16 in. [8 mm]  
FOR WRAPAROUND  
BARRIER  
CONNECTION—  
NOTE: If wiring a dual transformer system, only the O or  
STRIP 7/16 in. [11 mm]  
the B terminal may be used.  
Push excess wire back into the wall.  
M1556B  
TABLE 2—SUBBASE TERMINAL DESIGNATIONS.  
Subbase Terminal  
Control Function  
R
Control transformer power.  
Rc  
Rh  
W
Y
Line side of 24V power supply; cooling side, 2 transformer heat/cool system.  
Line side of 24V power supply; heating side, 2 transformer heat/cool system.  
Heating control circuit.  
Cooling control circuit; jumper to W for heat pump compressor control if no  
P terminal on subbase.  
G
C
O
B
P
Fan control circuit.  
Clock control (transformer common).  
Cooling damper or changeover/reversing valve, makes continuously in cool.  
Heating damper or changeover/reversing valve, makes continuously in heat.  
Heat pump contactor; P terminal on some models only.  
MOUNT THE THERMOSTAT  
Note the tabs on the top inside edge of the thermostat  
base. These tabs fit the slots molded into the top of the  
wallplate or subbase.  
Fig. 6—Thermostat mounting.  
Hang the thermostat base on the wallplate or subbase.  
Insert the two captive mounting screws located in the  
bottom corners of the base (Fig. 6).  
Firmly tighten the screws.  
TAB (2)  
INSERT TIMER BATTERIES  
MOUNTING SLOT (2)  
Power is supplied to the clock by the 24 Vac transformer  
or two AAA alkaline batteries (included), or by the heating  
or cooling control circuit. Backup batteries may be installed  
to supply power to the clock if power is interrupted when  
using 24 Vac powering method.  
1
11  
Install the batteries in the thermostat (Fig. 7).  
Once a year or when batteries are dead, replace with two  
new AAA alkaline batteries. Properly dispose of old batter-  
ies. We recommend Energizer batteries.  
3
5
30  
2
20  
10  
5
®
THERMOSTAT  
BASE  
WALLPLATE  
OR SUBBASE  
CAPTIVE  
MOUNTING SCREWS  
M8674  
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Fig. 7—Insert timer batteries.  
Fig. 8—Set timer.  
BATTERY LOCATION FOR  
(2) AAA BATTERIES;  
PROGRAM DIAL  
INSTALL WITH POSITIVE  
ENDS UP  
PROGRAM  
PIN (6)  
TIMER  
SETTING  
KNOB  
TIME  
INDICATOR  
ARROW  
M8585  
M821A  
SET TIMER  
Adjust the timer by moving the knob clockwise  
.
Do not reverse the knob.  
Let the system operate for one minute.  
Adjust the heat anticipator lever to match the number that  
reads on the ammeter.  
When time is correctly set, the time indicator arrow  
triangle shape) points to the correct time and the corre-  
(
sponding daytime (light) or nighttime (dark) portion of the  
program dial (Fig. 8).  
Fig. 9—Adjust heat anticipator.  
SET HEAT ANTICIPATOR  
Adjust the heat anticipator lever to match the current  
ratingoftheprimarycontrolforthepropercyclerate(Fig. 9).  
Adjustable anticipation must be set for total current of heat  
and fan control.  
The current rating is usually stamped on the control or  
valve (Fig. 10), or a setting may be given in the device  
instructions.  
If no current rating or heat anticipator setting is given,  
measure the current with an ammeter. Proceed with the  
following steps.  
ANTICIPATOR  
SCALEPLATE  
Remove the thermostat from the wallplate or subbase.  
Connect an ac ammeter of appropriate range (about 0A to  
ANTICIPATOR  
SETTING LEVER  
M7317  
2A) between the R and W terminals on the wallplate or  
subbase, except for electric heat and heat pump systems.  
Fig. 10—Current rating of primary control.  
OIL BURNER CONTROL  
SHOWS  
SHOWS  
VOLTAGE  
RATING  
SHOWS LOW  
CURRENT  
VOLTAGE  
DRAW  
30 VAC  
V8043E 1004 4  
0.2 AMP  
2
4V 50/60CY  
SHOWS  
ANTICIPATOR  
SETTING  
.32 AMP @ 60CY  
SHOWS  
VOLTAGE  
RATING  
T
T
TO  
BURNER  
F
F
24 Vac 50/60 Hz  
0.4 AMP  
FROM MAIN  
SHOWS  
FUEL SUPPLY  
ANTICIPATOR  
SETTING  
ZONE VALVE  
M6116A  
TYPICAL GAS VALVE  
5
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ATTACH THERMOSTAT COVER  
Make sure the packing inserts in the thermostat base are  
removed.  
Place the two tabs on the upper edge of the cover into the  
mounting slots in the thermostat base (Fig. 11).  
Swing the cover downward until it catches at the bottom  
of the base.  
To switch positions, use thumb or index finger to slide  
lever to the desired position. Switch lever must stop in detent  
over the desired function indicator mark for proper circuit  
operation.  
Checkout  
CAUTION  
Fig. 11—Attach cover.  
Do not check operation by shorting across the  
terminals of the system controls. This will damage  
the heat anticipator.  
50  
60  
70  
8
0
HEATING-ONLY SYSTEM  
Turn on power to the furnace.  
Push both temperature setting levers together at least 5°F  
3° C] above the room temperature. The main burner should  
[
come on. The fan will start when the furnace heats up.  
Move both levers 5° F [3° C] below the room tempera-  
ture. The burner should shut off.  
M8604  
Operate the entire heating system at least one complete  
cycle.  
If thermostat fails any test, refer to the Troubleshooting  
Guide in the Owner’s Manual.  
Reset both temperature setting levers to the desired  
temperatures.  
SET TEMPERATURE CONTROL LEVERS  
Thetwoleversonthetopofthethermostatcontrolthelow  
and high temperatures for energy savings and comfort con-  
trol (Fig. 12). The lever on the left (blue mark) controls the  
lower temperature. The lever on the right (red mark) controls  
the higher temperature.  
We recommend pushing the levers together at an appro-  
priate temperature for either heat or cool until the occupant  
programs the thermostat and makes the final temperature  
selections.  
COOLING-ONLY SYSTEM  
Turn on power to the cooling equipment.  
Push both temperature setting levers together at least 5° F  
3° C] below the room temperature. The cooling equipment  
[
will operate, and the fan will start. Allow for any time delay  
that may be built into the compressor control circuit.  
NOTE: To avoid compressor damage, do not operate the  
system when outdoor temperature is below 50° F [10°C].  
Refer to manufacturer recommendations.  
Fig. 12—Temperature control levers.  
LOW TEMPERATURE  
BLUE MARK)  
SET LEVER  
HIGH TEMPERATURE  
(RED MARK)  
SET LEVER  
(
Move both levers 5° F [3° C] above room temperature.  
The cooling equipment and the fan should shut off.  
Operate the entire cooling system at least one complete  
cycle.  
50  
60 70  
80  
If thermostat fails any test, refer to the Troubleshooting  
Guide in the Owner’s Manual.  
Reset both temperature setting levers to the desired  
temperatures.  
M859  
HEATING/COOLING SYSTEM  
SET SUBBASE SWITCHES (IF APPLICABLE)  
The subbase system switch controls system operation as  
follows:  
Turn on power to the furnace and cooling system.  
Place the system switch lever to HEAT and fan switch  
lever to AUTO.  
HEAT: Heating system is controlled by the thermostat.  
Cooling system is off.  
COOL: Cooling system is controlled by the thermostat.  
Heating system is off.  
OFF: Both the heating and cooling systems are off. If the  
fan switch is in the AUTO position, the fan is also off.  
The subbase fan switch controls fan operation as follows:  
ON: Fan operates continuously.  
AUTO: Fan operates with the cooling equipment as  
controlled by the thermostat or with the heating equip-  
ment as controlled by the plenum switch. In electric  
heat, heat pump, and fan coil systems, the fan is  
controlled by the thermostat in heating and cooling.  
Push both temperature setting levers together at least 5° F  
[3° C] above room temperature. The main burner should  
come on. The fan will start when the furnace heats up. (If  
central electric heat, fan coil or heat pump system, fan starts  
immediately.)  
Move both levers 5° F [3° C] below room temperature.  
The burner should shut off.  
PlacethesystemswitchlevertoCOOLandthefanswitch  
lever to AUTO. The cooling equipment will operate, and the  
fan will start. Allow for any time delay that may be built into  
the compressor control circuit.  
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NOTE: To avoid compressor damage, do not operate the  
system when outdoor temperature is below 50° F [10° C].  
Refer to manufacturer recommendations.  
Fig. 13—Thermometer calibration.  
Move both temperature setting levers together at least 5° F  
3° C] above the room temperature. The cooling equipment  
[
should shut off.  
Place the fan switch to ON. The fan should run continu-  
ously with the system switch in any position.  
Place the system switch to OFF. Move both temperature  
setting levers to various positions. The heating and cooling  
systems should not operate.  
INCREASE  
Operate the entire system for at least one complete cycle  
with the system switch at COOL and one complete cycle  
with the switch at HEAT.  
If thermostat fails any test, refer to the Troubleshooting  
Guide in the Owner’s Manual.  
Reset both temperature setting levers to the desired tem-  
peratures.  
Leave Owner’s Manual and Assistance Information in a  
convenient place for the building occupant or provide with  
other appliance manuals.  
M5128  
If calibration is necessary, proceed as follows:  
Calibration  
1
. Remove the cover.  
. Place open-end calibration wrench, part no. 104994A  
2
THERMOMETER  
(ordered separately), on the hex nut under the bimetallic coil  
controlled by the red lever (Fig. 14). Hold lever so it does not  
The thermometer in your thermostat was accurately cali-  
brated at the factory. The thermometer should need adjust-  
ment only if it has been dropped or shifted due to mishandling.  
If the setpoint lever and the thermometer reading do not  
agree:  
move, and gently turn the wrench clockwise  
until the  
mercury rests securely in the right end of the tube.  
3. Put the thermostat cover on and wait ten minutes.  
4. Read the thermometer. Then remove the cover. Mov-  
ing both levers, place the HIGH lever at the thermometer  
reading. Hold lever so it does not move, and gently turn the  
1
. Remove the thermostat cover by pulling up from the  
bottom of cover until it clears the mounting slots.  
. Set the thermostat cover on a table near an accurate  
thermometer.  
2
wrench counterclockwise  
until the mercury just slides  
to the left end of the tube but no farther. Try to do this quickly  
so the heat from your hands does not affect the thermostat.  
5. Repeat this procedure for the blue lever.  
3. Allow five minutes for cover thermometer to sense  
area temperature; compare the readings. Be careful not to  
touch thermometer or breathe on it.  
4
. If the readings are the same, replace cover and put the  
system into operation.  
. If the readings are different, insert a small screwdriver  
Fig. 14—Use of 104994A calibration wrench.  
5
in the thermometer and turn it until the thermometers have  
the same reading (Fig. 13).  
6. Replace thermostat cover and put the system into  
operation.  
CALIBRATION  
WRENCH  
NOTE: Radiant heat from your hands will offset the ther-  
mometer reading. After making each adjustment, wait five  
or ten minutes for the thermometer to stabilize before  
comparing.  
ANTICIPATOR  
SETTING  
LEVER  
THERMOSTAT  
This thermostat was calibrated at the factory and should  
not need recalibration in the field. If recalibration seems  
necessary, first be sure wallplate or subbase is accurately  
leveled. Then check thermometer calibration.  
.35  
.
30  
ANTICIPATOR  
SCALEPLATE  
.
20  
10  
.
M8583  
To check thermostat calibration, allow several hours of  
operation after installation. Then read thermometer and  
remove cover. Push temperature levers together to a setting  
below room temperature. Slowly move them up the scale  
together until the mercury slides across the tube. If the  
thermometer reading and the high temperature lever posi-  
tion are approximately the same at the instant the mercury  
moves to the other end, no recalibration is needed.  
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Typical Wiring Diagrams  
Fig. 17—Typical hookup for timer powered by  
system transformer. Timer powered by battery  
when system is not powered (e.g., power to  
system is off or interrupted).  
Fig. 15—Typical hookup for timer powered by  
separate 24-Vac transformer.  
TIMER  
TIMER  
2
BATTERY  
THERMOSTAT  
BATTERY  
THERMOSTAT  
SUBBASE  
C
C
R
W
SUBBASE  
C
C
R
W
HEAT  
RELAY  
L1  
HOT)  
(
1
L1  
HOT)  
L2  
(
1
L2  
HEAT  
RELAY  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
M824A  
L1  
HOT)  
(
1
L2  
1
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
Fig. 18—Typical hookup for timer powered  
through control system. Timer powered by  
battery when heating or cooling equipment is  
on; timer takes power from system when  
heating equipment is off.  
BATTERY BACKUP MAY BE USED IF POWER TO  
TIMER IS INTERRUPTED.  
M822A  
Fig. 16—Typical hookup for timer powered by  
two AAA alkaline batteries only.  
THERMOSTAT  
TIMER  
TIMER  
BATTERY  
BATTERY  
THERMOSTAT  
3
C
C
RH  
RC  
W
Y
2
SUBBASE  
SUBBASE  
L1  
C
C
R
W
HEAT  
RELAY  
(HOT)  
HEAT  
RELAY  
1
L1  
HOT)  
L2  
(
1
COMPRESSOR  
CONTACTOR  
L2  
L1  
(HOT)  
1
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS  
AND OVERLOAD PROTECTION AS REQUIRED.  
L2  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
M823A  
2
3
JUMPER RH-RC TERMINALS WHEN ONE TRANSFORMER  
POWERS BOTH HEATING AND COOLING.  
FOR POWER STEALING ON HEATING, JUMPER  
C-RH AND C-W TERMINALS.  
M825A  
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Fig. 19—Typical hookup for timer powered through control system. Timer powered by battery when  
heating or cooling equipment is on; timer takes power from system when cooling equipment is off.  
THERMOSTAT  
TIMER  
BATTERY  
3
C
C
RH  
RC  
W
Y
2
SUBBASE  
L1  
HEAT  
RELAY  
(HOT)  
1
L2  
COMPRESSOR  
CONTACTOR  
L1  
(HOT)  
1
L2  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND  
OVERLOAD PROTECTION AS REQUIRED.  
2
3
JUMPER RH-RC TERMINALS WHEN ONE TRANSFORMER  
POWERS BOTH HEATING AND COOLING.  
FOR POWER STEALING ON COOLING, JUMPER C-RC  
AND C-Y TERMINALS.  
M826A  
Fig. 20—Internal schematic and typical hookup for T8190A Thermostat/191108AJ Wallplate in heating-  
only system.  
TIMER  
H
THERMOSTAT  
H
C
C
HEAT  
ANTICIPATOR  
FALL  
HEAT  
ANTICIPATOR  
FALL  
WALLPLATE  
C
C
R
W
Y
HEAT  
RELAY  
L1  
(HOT)  
1
L2  
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.  
M827A  
9
69-0642—1  
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9-0642—1  
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69-0642—1  
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Home and Building Control  
Honeywell Inc.  
Home and Building Control  
Honeywell Limited—Honeywell Limitée  
740 Ellesmere Road  
Helping You Control Your World  
1
985 Douglas Drive North  
Golden Valley, MN 55422  
Scarborough, Ontario  
M1P 2V9  
QUALITY IS KEY  
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