Electronic Programmable Thermostat Owner’s Manual ® U.S. Registered Trademark © 2004 Honeywell International Inc.
Table of Contents Programming Your Thermostat ........................................................................ 3 Program Schedule........................................................................................... 5 Set Current Time/Day...................................................................................... 6 Heating Program ............................................................................................. 6 Cooling Program.............................................
Programming Your Thermostat WAKE is the time the thermostat turns on the heating/cooling equipment after an energy saving period. When deciding what time to set for your WAKE period, include extra lead time, depending on the outside temperature and your furnace response time, to give the furnace a head start to heat the house before you get up. (This will be a higher temperature during heating season, and a lower temperature during cooling season.
ature and your furnace response time, to give the furnace a head start to heat the house before you arrive home. SLEEP is the time period you can set for an energy-saving temperature while you are sleeping. (For more comfortable sleeping, some people choose not to raise the cool temperature during the night.) it. For example, a house that is occupied during weekdays would only require programs for WAKE and SLEEP.
Program Schedule Weekdays Heating Program Schedule Start Time Heating Temperatureb Cooling Temperatureb WAKE a LEAVE RETURNa SLEEP Weekends WAKE a SLEEP a WAKE and RETURN start times should include extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to heat the house. temperatures cannot be set higher than 88°F (26°C) or lower than 45°F (7°C).
NOTE: If you decide not to program the thermostat, it will automatically control heating at 68°F (20°C), and cooling at 78°F (26°C), 24 hours a day. This guide can be used for programming your new thermostat. IMPORTANT Batteries are required for operation and programming. When inserting batteries, set the System switch to Off. Remove the battery door (on the thermostat left side) using a coin at the bottom. See Maintaining Your Thermostat section.
Cooling Program Press Set Schedule key until WAKE, SA SU and SET appear on the display. Use Time keys to program WAKE time and Temp keys to program WAKE temperature for Sat-Sun. Repeat the sequence for SLEEP. WIth System switch at Cool, follow the same instructions as for the Heating Program. After programming, adjust the Fan and System switches, as desired. Press and release Run Program key to start the program.
Permanently Change a program—Repeat the steps in the Heating Program or Cooling Program sections, as applicable. Hold a temperature indefinitely—Press Hold Temp key once. Press Temp keys until display shows desired temperature. Press Run Program key once to return to the program. Return to the normal program or the starting program—Press Run Program key once. Check Current Temperature Setting—Press Run Program key once. If using Temporary Change or Hold features, pressing this key cancels your change.
Maintaining Your Thermostat Setting System Switch System switching positions control thermostat operation: Cool: Thermostat controls air conditioning system. Off: Both heating and air conditioning systems are off. Heat: Thermostat controls heating system. Installing Batteries IMPORTANT Batteries must be installed for programming and operation of the thermostat and heating/cooling system. 1. AM TU LEAVE 2. Fan FAN SWITCH Auto On System 3. 4.
INSTALL TWO AA ALKALINE BATTERIES AS SHOWN AM TU Fan FAN SWITCH M5781 5. Auto On LEAVE System Cool Off Heat SYSTEM SWITCH M5782 Replace the battery door. After batteries are completely dead, bAtLo indicator disappears, leaving the display completely blank and the heating and/or cooling system not operating. As batteries are running low, bATLo indicator flashes for one to two months before batteries run out completely. Replace batteries as soon as possible after indicator starts flashing.
To remove batteries, press down on the left ends. If the new batteries are installed within 20 to 30 seconds of removing the old ones, the thermostat does not have to be reprogrammed. If the display is blank, the batteries are dead or incorrectly installed and the thermostat has to be reprogrammed. See Programming Your Thermostat section for instructions.
Troubleshooting Guide If... Display does not come on. Then... • Set the System switch to Off. Remove batteries. Insert backward for at least five seconds to reset thermostat. Correctly replace batteries. Display should come on. • Make sure batteries are fresh and installed correctly. • Gently clean battery contacts using a soft pencil eraser. Do not use anything abrasive on the clips. • The temperature setting limit is reached. The setting Temperature display does not go range is 45 to 88°F (7 to 31°C).
If... Then... Heating does not come on. • Check that System switch on thermostat is set to Heat. Allow a minimum of five minutes for time-guard protection to expire. • Check the system fuse or circuit breaker and replace or reset, if necessary. • If display is blank or displays bAtLo, install fresh batteries. • If temperature setting is higher than current temperature, and System On indicator is lit, contact your local dealer. Cooling does not come on.
If... Cooling does not come on (Cont) Then... • The thermostat has a built-in time delay on cooling. Allow at least five minutes after changing the setting before the air conditioner starts. • Make sure outdoor disconnect is engaged (on). • If temperature setting is lower than current temperature, and System On indicator is lit, move System switch from Cool to Off for ten minutes. After ten minutes, return switch to the Cool position.
If... Then... Too warm or too cool. • Press Run Program key to check the current temperature setting. • If desired, change the temperature setting. See Programming Your Thermostat section. System On indicator is lit, but no heat is coming from the registers. • Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. Thermostat current temperature setting does not match the display temperature to within +/- 1°.
If... Then... bAtLo remains on display after fresh • Remove the batteries. Wait one hour. Install fresh batteries are installed. alkaline batteries. NOTICE This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c.1374.
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 defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
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.
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Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 69-0862—4 J.S. Rev. 10-04 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 www.honeywell.
