Electronic Programmable Thermostat Owner's Manual ® U.S. Registered Trademark © 2004 Honeywell International Inc. All Rights Reserved 69-0862--4 Table of Contents Programming Your Thermostat ........................................................................ 3 Program Schedule........................................................................................... 5 Set Current Time/Day...................................................................................... 6 Heating Program ............................................................................................. 6 Cooling Program.............................................................................................. 7 Operating Your Thermostat ................................................................................ 7 Using Programming Features.......................................................................... 7 Setting Fan Switch........................................................................................... 8 Setting System Switch..................................................................................... 9 Maintaining Your Thermostat ............................................................................ 9 Installing Batteries ........................................................................................... 9 Troubleshooting Guide ...................................................................................... 12 Limited One-Year Warranty ............................................................................... 17 2 69-0862--4 Programming Your Thermostat When batteries are installed, your thermostat can be programmed in your hand before it is installed or after it is mounted on the wall. For instructions on installing or replacing the batteries, refer to Maintaining Your Thermostat section. Refer to the Program Schedule section to program your time and temperature settings for various times of the day. Four time periods are available during workdays: WAKE, LEAVE, RETURN, and SLEEP. During weekends, only the WAKE and SLEEP time periods are available. View these periods individually on the display when you press the Set Schedule key. 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.) LEAVE is the time period you can set for an energy-saving temperature while you are away at work or school. (This will be a lower temperature during heating season, and a higher temperature during cooling season.) RETURN is the time the thermostat turns on the heating/cooling equipment after an energy saving period. When deciding what time to set for your RETURN period, include extra lead time, depending on the outside temper3 69-0862--4 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.) You will set one schedule for weekdays and another for weekends because your requirements will probably be different for each. Fill in the times and temperatures you desire for weekdays and weekends. If you decide not to program the thermostat, it automatically controls heating at 68°F (20°C) and cooling at 78°F (20°C), 24 hours a day. Also, you do not need to enter a time and temperature program for all periods if your schedule does not require 4 it. For example, a house that is occupied during weekdays would only require programs for WAKE and SLEEP. When pressing the keys, use the ball of your finger or a soft pencil eraser. NOTE: Use of sharp fingernails or pencil points can damage the keypad. If you make an error at any time during programming, just press the Run Program key, and continue again at the last step. 69-0862--4 Program Schedule Weekdays WAKE a LEAVE RETURNa SLEEP Weekends WAKE a SLEEP a Heating Program Schedule Start Time Heating Temperatureb Cooling Temperatureb b The 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). 5 69-0862--4 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. To set the day, press and release the Set Clock/Day key again. Press Time keys until current day shows. Press Run Program key. Heating Program With the System switch set to Heat, press and release the Set Schedule key once. WAKE, Mon-Fri, and SET appear on the display. Use Time keys to program WAKE time and Temp keys to program WAKE temperature for Mon-Fri. Repeat sequence for LEAVE, RETURN, and SLEEP. Set Current Time/Day To set time, press and release Set Clock/Day key once. Press Time keys until current time shows. 6 69-0862--4 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. Cooling Program 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. USE TO SET WARMER TEMPERATURE USE TO SET TIME EARLIER LCD DISPLAY RUN PROGRAM KEY AM TU LEAVE Operating Your Thermostat Using Programming Features Temporarily Change temperature for current period only-- Press Temp keys to set desired temperature. The change cancels itself at the next scheduled program change; to cancel sooner, press Run Program key. Fan Auto On System Cool Off Heat HOLD TEMP KEY USE TO SET CURRENT DAY AND TIME USE TO SET PROGRAM PERIOD USE TO SET TIME LATER USE TO SET COOLER TEMPERATURE M8473 7 69-0862--4 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. Check Current Temperature Setting--Press Run Program key once. If using Temporary Change or Hold features, pressing this key cancels your change. Check Programs--Press Set Schedule key repeatedly to see each time and temperature. Press Run Program key once to return to the program. Cancel a program--Press Set Schedule key until the program to cancel shows. Pressing the two Time keys together cancels the program. 8 Permanently Change a program--Repeat the steps in the Heating Program or Cooling Program sections, as applicable. Return to the normal program or the starting program--Press Run Program key once. Setting Fan Switch Fan switching positions are: Auto: Normal setting for most homes. A singlespeed fan turns on automatically with the air conditioner or furnace. A two-speed fan usually runs on high with the air conditioner and runs on low with the furnace. On: Fan runs continuously. Use for improved air circulation during special occasions or for more efficient electronic air cleaning. 69-0862--4 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. Maintaining Your Thermostat Installing Batteries IMPORTANT Batteries must be installed for programming and operation of the thermostat and heating/cooling system. 1. Purchase two AA alkaline batteries; nonalkaline batteries do not last as long and can leak, causing damage to the thermostat or wall surface. Make sure the thermostat is set in the Off position. Use a coin to remove the battery door. Install the fresh batteries, making sure the positive and negative terminals are oriented correctly. 69-0862--4 AM TU LEAVE 2. Fan Auto On System Cool Off Heat 3. 4. SYSTEM SWITCH M5783 FAN SWITCH 9 INSTALL TWO AA ALKALINE BATTERIES AS SHOWN AM TU LEAVE Fan Auto On System Cool Off Heat FAN SWITCH M5781 SYSTEM SWITCH M5782 5. Replace the battery door. 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. 10 After batteries are completely dead, bAtLo indicator disappears, leaving the display completely blank and the heating and/or cooling system not operating. 69-0862--4 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. 11 69-0862--4 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). lower than 45°F (7°C) or higher than 88°F (31°C) during programming. Temperature change occurs at the wrong times. · Check program times for the period in question. Be sure that AM and PM indications are correct. Make sure the current day and time are correct. Reprogram, if necessary. 12 69-0862--4 If... Heating does not come on. Then... · 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. · Check that System switch on thermostat is set to Cool. 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. Cooling does not come on. 13 69-0862--4 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 the air conditioner comes on, the compressor could have reached its high-limit temperature protection and shut down. If air conditioner does not come on after ten minutes and the System On indicator is lit, contact your local dealer. · If two- or four-wire installation, verify that R-Rc jumper is installed. 14 69-0862--4 If... Too warm or too cool. Then... · Press Run Program key to check the current temperature setting. · If desired, change the temperature setting. See Programming Your Thermostat section. · Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. · Check that the wiring hole in the wall behind the wallplate was plugged with insulation to prevent drafts that could adversely affect thermostat operation. · Be aware that it is normal for the current setting and display temperature to differ occasionally. · During recovery from setback or setup, setting and display temperature can differ for up to 30 minutes after the recovery period. · The thermostat is factory-calibrated and cannot be adjusted. System On indicator is lit, but no heat is coming from the registers. Thermostat current temperature setting does not match the display temperature to within +/- 1°. Incorrect temperature showing on thermostat display. 15 69-0862--4 If... Then... bAtLo remains on display after fresh · Remove the batteries. Wait one hour. Ins ...