Honeywell 191108AJ Series Heating or Cooling Thermostat User Guide

Honeywell 191108AJ Series Heating or Cooling Thermostat

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.
Your new 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
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 this control, or of an old control containing mercury in a sealed tube.

Features Of Your Thermostat

1. FLIP-UP COVER. Lift it up to set clock for energy saving and normal temperature periods.
2. THERMOSTAT COVER. Lift up and remove to adjust heat anticipator.
3. THERMOMETER. Provides accurate room temperature reading.
4. TEMPERATURE SETTING LEVERS. Left (blue mark) controls the low temperature, right (red mark) controls the high temperature.
5. TIMER. This timer provides a 24-hour slotted dial to hold the programming pins.
6. TIMER SETTING KNOB. Turn clockwise to match the correct AM or PM time to the time indicator.
7. TIME INDICATOR. Arrow head (triangle shape) indicates low (blue) temperature setting or high (red) temperature setting in control on program index wheel. Also indicates time on 24-hour dial.
8. PROGRAM INDEX WHEEL. Controls high and low temperature at specific time of day as set by program pins.
9. PROGRAM PINS. Must be inserted into 24- hour timer dial slots to control program index wheel.
10. PIN SLOTS. Located on 24-hour dial at 10- minute intervals for program pin insertion.
11. PROGRAM DIAL. 24-hour dial with light band to indicate daytime and dark band to indicator nighttime.
12. HEAT ANTICIPATOR SCALEPLATE. Calibrated to match the heating system current draw in amperes.
13. ANTICIPATOR SETTING LEVER. Must be adjusted to match the heating system primary control current.
14. MERCURY BULB AND BIMETAL ELEMENT (2). Provide automatic temperature control by switching the heating or cooling system on or off.
15. WALLPLATE (Included with thermostat.) Provides mounting base and wiring connections for heating-only or cooling-only thermostat.
16. SUBBASE (Optional, 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.

Setting the Temperature For Heating

• Set the left lever (blue mark) to the energy saving temperature you want when you are sleeping or your home is unoccupied.
• Set the right lever (red mark) to the temperature you want for normal comfort periods.
  NOTE: You may override the time program by setting both the red and blue levers to the same temperature setpoint.

For Cooling:

• 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 saving temperature you want when you are sleeping or your home is unoccupied.

Inserting Timer Batteries
Power is supplied to the timer by the 24 Vac transformer, by two AAA alkaline batteries (included), or by the heating or cooling control circuit. Backup batteries may be installed to supply power to the timer if power is interrupted when using a 24 Vac powering method. Install batteries in 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. Properly dispose of old batteries.

Setting the Timer

• Lift thermostat flip-up cover and you’ll find the 24-hour program dial, slotted in 10-minute increments. Adjust the timer to the current time by carefully turning the knob clockwise . DO NOT reverse the knob.
• When time is correctly set, the time indicator arrow (triangle shape) will point to the correct time and corresponding daytime (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.

Daylight Saving Time
When Daylight Saving Time starts, move the knob carefully in a clockwise direction one hour. When Daylight Saving Time ends, move the knob carefully in a clockwise direction 23 hours. Do NOT reverse the knob, or damage to timer mechanism may occur.

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.

Before setting your program
Notice the slots on the program dial (Fig. 4). The dial is slotted for the program pins that can be inserted at 10-minute intervals.

• Lift thermostat flip-up cover and you will find the 24-hour program dial. The slots on the program dial (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 has been preprogrammed. A red pin is inserted at 6:00 AM for high temperature (comfort period); a blue pin is inserted at 10:00 PM for low temperature
  (energy saving 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 recom-mend at least five hours for each energy saving period.

• To change the pins or add a new energy savings 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.
  • On heating/cooling systems, set the subbase switches to desired positions. See Setting Subbase Switches section.
  • On heating/cooling systems, you must reset the pins when the seasons change. You will also probably want to change the lever positions.

To set 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 gives the furnace time to heat the house before you awaken or arrive home.
• Decide when you want the energy saving 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.
• You can set both a day and a night program. See Fig. 5 for program examples.

To set 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 gives the air conditioner time to cool the house before you awaken or arrive home.
• 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 the room temperature rises to the energy saving setpoint.

Setting Subbase Switches

(if applicable)

The subbase system switch controls system operation as follows:

• 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 at the AUTO position, the fan is also off.
• ON— In cooling-only applications, only cooling will operate. In heating-only applications, only heating will operate.

The subbase fan switch controls fan opera-tion as follows:

• ON— Fan operates continuously.
• AUTO— Fan operates with cooling equipment as controlled by the thermostat or with the heating equipment as controlled by the plenum fan switch. In electric heat, heat pump and fan coil systems, the fan is controlled by the thermostat in heating and cooling.
• To switch positions, use thumb or index finger to slide the lever to the desired position. For proper circuit operation, switch lever must stop in detent over desired function indicator mark.

Troubleshooting

Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following.

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 according to furnace manufacturer 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.
— Other.| Contact a qualified service technician for assistance.
Problem| Check| Action
---|---|---
Energy saving temperature program is 12 hours.| — Program dial for proper day or night phase.| Turn timer ahead 12 hours. Turn knob clockwise  only.
Rooms do not warm up at the programmed 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.
Temperature change occurs at the wrong time.| — Program pins for correct time locations.| Relocate pins to desired settings.
Room temperatures are not correct.| — Positions of thermostat set point levers.| Reset to desired temperatures.
— Position of subbase system switch (heating-cooling model).| Move to desired operating position.
Problem| Check| Action
---|---|---
Room temperatures are not correct (continued).| — Thermostat circuits.| Heating mode—Move temperature setting levers 5° F [3° C] above room temperature. Heating system should start.

Cooling mode—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.

Burner-on time too short.| — Anticipator setting. (See Fig. 6 for anticipator location.)| Increase anticipator setting by 0.05 (e.g., 0.4 to 0.45). Observe burner operation.
Burner-on time too long.| — Anticipator setting. (See Fig. 6 for anticipator location.)| Decrease anticipator setting by 0.05 (e.g., 0.45 to 0.4). Observe burner operation.
Problem| Check| Action
---|---|---
No cooling.      1| — 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. If fuse blows again, call the heating and air conditioning dealer.
— Condenser switch position. Located outdoors and may be turned off.| Move to ON position.
— Thermostat connections. Check for correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws.| Turn off power to cooling system.
— Other.| Contact a qualified service technician for assistance.
Problem| Check| Action
---|---|---
Thermostat setting and thermometer reading disagree.| — Level position of thermostat.| Reinstall thermostat wallplate or 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 Thermometer Adjustment section.
Timer does not run.| —Thermostat connections at the two C terminals. If no connections, timer needs 3 batteries in to run.

— Batteries may not have been installed.

— Batteries may need replacement.

| __

Install as shown in Fig. 2.

Replace with two new AAA alkaline batteries as shown in Fig. 2.

— If new batteries are installed and timer still does not run.| Replace thermostat.
Problem| Check| Action
---|---|---
Timer does not run (continued).| — Voltage across the two C terminals.| Remove thermostat from the wallplate or subbase and measure the voltage. Refer to Voltage at Timer Terminals table for cause and reaction.
— Pins in program dial. If pins are not completely seated in program dial, jamming with index wheel can occur.| Push down on pins to make sure they are completely seated in program dial.
Timer loses time.| — Power may be interrupted.| Make sure power is on. Reset timer.
— High limit control. If timer powered through system transformer, power to timer and equipment may be off on safety.| Wire separate transformer to power timer, or install backup batteries as shown in Fig. 2.
— Filter may be clogged. Safety limit on equipment can cut off power to system.| Replace filter and reset timer.
Problem| Check| Action
---|---|---
Timer loses time (continued).| — Batteries may need replacement.| Replace with two new AAA alkaline batteries as shown in Fig. 2.

1. Not applicable on model used in heating-only system.
2. Not applicable on model used in cooling-only system.
3. If timer is not battery powered, timer may still use batteries for backup.

If this Troubleshooting section did not solve the problem, call a qualified service technician or the Honeywell Customer Assistance Center, 1-800-468-1502, Monday – Friday, 7:00 AM to 5:30 PM Central time for additional assistance.

VoltageAtTimerTerminals

Use additional (separate) transformer.
— Additional (separate) transformer used to power the timer 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.
— Timer has failed.| — Replace thermostat.

Servicing the Thermostat

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 adjustment.
NOTE: Most hot water systems require a setting of 1.2A.

Thermometer Adjustment
The thermometer was accurately calibrated at the factory and should only need adjustment if it has been dropped or mishandled. If the setpoint lever and the thermometer reading do not agree, follow the procedure below. Remove thermostat cover and open the flip-up cover. Set the thermostat cover on a table near a 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 the thermometer or breathe on it.
If the readings are the same, replace the 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. Replace thermostat cover and put the system into operation.

If you have questions regarding the installation and programming of your Honeywell thermostat, please visit our web site at www.honeywell.com/yourhome or call the 24-hour automated information line at 1-800-468-1502.

Limited One-Year Warranty

1. return it, with a bill of sale or other dated proof of purchase, to the dealer or contractor from which you purchased it, or
2. 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. in Canada
Returned Goods Department Honeywell Limited/Honeywell Limited
1050 Berkshire Lane 740 Ellesmere Road
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.

Home and Building Control
Honeywell Inc.
1985 Douglas Drive No.
Golden Valley, MN 55422

Home and Building Control
Honeywell Limited/Honeywell Limitée
740 Ellesmere Road
Scarborough, Ontario

www.honeywell.com/yourhome

firealarmresources.com

References

• Fire Alarm Resources | Download fire alarm documents
• Home Products Support | Honeywell

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