Write the answers to the following questions in the spaces provided to determine the program that fits your family’s schedule.
For Heating:
Set the left lever (blue mark) to the energy savings temperature you want when you are sleeping or your home is unoccupied. See Fig. 1. Set the right lever (red mark) to the temperature you want for normal comfort periods.
NOTE: You may bypass the time program by setting both the red and blue levers to the same temperature setpoint.
For Cooling (Not Applicable on Heating-only Model):
Set the left lever (blue mark)to the temperature 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.
The sub base system switch controls system operation as follows:
The subbase fan switch controls fan operation as follows:
Power is supplied to the timer by two AAA alkaline batteries (included.) Install batteries in the thermostat as shown. See Fig. 2. One a year, or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer® batteries. The thermostat itself will operate without batteries, but will not operate as a fuel saver.
Lift the thermostat flip-up cover to find the 24-hour program dial, slotted in ten-minute increments. Adjust the timer to the current time by carefully turning the knob clockwise
When the time is set correctly, the time indicator arrow (see Fig. 3) will point to the correct time and corresponding daytime (light) or nighttime (dark) band of the program dial.
EXAMPLE: For 11 p.m., the time indicator arrow will point directly to the dark band on the dial. For 11 a.m., the arrow will point to the light band on the dial.
Daylight saving time
When daylight saving time starts, carefully move the knob clockwise
You can program your thermostat to automatically lower and raise the temperature one or more times every 24 hours. Refer to the energy savings chart on the back cover for typical heating and cooling savings with your new thermostat.
Lift the thermostat flip-up cover to find the 24-hour program dial. The slots on the program dial (Fig. 4) are for the program pins that 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 is preprogrammed. A red pin is inserted at 6:00 a.m. for high temperature (comfort period); a blue pin is inserted at 10:00 p.m. 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 recommend at least five hours for each energy-saving period.
To change the pins or add a new energy-saving period—
WINTER | SUMMER 1 | ||||||
TEMPERATURE | PROGRAM PIN IN CONTROL | TEMPERATURE | PROGRAM PIN IN CONTROL | ||||
°F | °C | °F | °C | ||||
NIGHT ENERGY SAVING PERIOD | BEGINS 10:00 PM | 58 | 14 | BLUE | 80 | 27 | RED |
ENDS 6:00 AM | 68 | 20 | RED | 75 | 24 | BLUE | |
DAY ENERGY SAVING PERIOD | BEGINS 7:30 AM | 58 | 14 | BLUE | 80 | 27 | RED |
ENDS 4:00 PM | 68 | 20 | RED | 75 | 24 | BLUE |
You may temporarily raise or lower the temperature if you come home early, stay up late, plan to be out for the evening, leave on vacation, etc. You can make a temporary change one of two ways—moving the program index wheel or pushing the setting levers together.
Moving the program index wheel will change the program just until the next regularly scheduled change is due:
Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following:
` | Check | Action |
No heat. | — system switch. May be in OFF or COOL position. 1 | 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 (where applicable). May be out. | Relight pilot flame per furnace manufacturer instructions. | |
— RH and W thermostat connections. | Turn off the power to furnace. Check for correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws. |
Problem | Check | Action |
No heat. (continued) | — other problem. | Contact a qualified service technician for assistance. |
Energy savings temperature program 12 hours off. | — program dial for proper day or night phase. | Turn timer ahead 12 hours. Move setting knob clockwise only. |
Rooms do not warm up at 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. | — programs pins for correct time locations. | Relocate pins to desired settings. |
Room temperatures are not correct. | — positions of thermostat setpoint levers. | Reset to desired temperatures. |
— position of subbase system switch. | Move to desired operating position. |
Problem | Check | Action |
Heat-on time too short. | — anticipator setting. (See Fig. 6.) | Increase anticipator setting by 0.05 Observe heating system operation. |
Heat-on time too long. | — anticipator setting. (See Fig. 6.) | Decrease anticipator setting by 0.05. Observe heating system operation. |
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. | |
— condensor switch position. Located outdoors and may be turned off. | Move to ON position. | |
— Y, G, RC thermostat connections. | Turn off power to cooling system. Check for correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws. |
Problem | Check | Action |
No cooling. (continued) | — other problem. | Contact a qualified service technician for assistance. |
The timer does not run. | — batteries may not have been installed. | Install as shown on page 10. |
— level position of the thermostat. | Replace with two new AAA alkaline batteries as shown on page 10. | |
Thermostat setting and thermometer reading disagree. | — area around the thermostat for drafts or radiant heat. | Reinstall thermostat wallplate or subbase. Use a spirit level. The thermostat should be about 5 ft [1.5m] above the floor on an inside wall. Contact a qualified service technician for a change of location. |
— calibration of the thermometer. | See instructions on page 22. |
Not applicable on the heating-only model.
NOTE: Not applicable on CT1503 Millivolt Heat model.
If the thermostat seems to cycle the heating system too fast or too slow, adjust the heating system on-length by moving the anticipator setting lever one indicator mark at a time (Fig. 6); a higher setting will increase heating system on length a lower setting will decrease heating system on-length. Observe the heating system operation after each adjustment. The heat anticipator must be correctly set. An incorrect setting can result in room temperature swings or burn out the anticipator, which would void the thermostat warranty.
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, follow the procedure below.
Remove the thermostat cover and open the flip-up cover.
Set the thermostat cover on a table near the thermometer of known accuracy.
Allow at least five minutes for the cover thermometer to sense the 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 the thermostat cover and put the system into operation.
If you have questions regarding the Timer Thermostat please visit our web site at www.honeywell.com/yourhome or call the customer information line at 1-800-468-1502. Before you call, please have the following information available—thermostat model number and date code, kind of heating/cooling system (for example, hot water, warm air, oil, gas, etc.) and a number of wires connected to the thermostat.
TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA
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,
Honeywell Return Goods Department In Canada: Honeywell Limited/Honeywell Limitée
Dock 4 MN10-3860 35 Dynamic Drive
1885 Douglas Drive North Scarborough, Ontario
Golden Valley, MN 55422 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 that 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 LlABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTlAL 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 DURATlON OF THlS 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 special 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 Assistance, MN10-1461, 1885 Douglas Drive North, Golden Valley, MN 55422. In Canada, write Honeywell Limited/Honeywell Limitée, Retail Products ON15-02H, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
Home and Building Control Home and Building Control Helping You Control Your World
Honeywell Inc. Honeywell Limited—Honeywell Limitée 1985 Douglas Drive No. 740 Ellesmere Road
Golden Valley, MN 55422 Scarborough, Ontario
M1P 2V9 M3375
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