Electronic Programmable Thermostat Owner’s Manual J.S. • Rev.
Table of Contents Programming Your Thermostat .................................................................................................. 3 Program Schedule ...................................................................................................................... 5 Set Current Time/Day ................................................................................................................ 6 Heating Program ...........................................................................
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 the Maintaining Your Thermostat section. Refer to the personal Program Schedule on page 3 to program your time and temperature settings for various times of the day. Four time periods are available during weekdays — WAKE, LEAVE, RETURN, and SLEEP.
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 (26°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 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.
Program Schedule Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Weekends WAKE 1 SLEEP HEATING PROGRAM SCHEDULE Start Time Heating Temperature 2 __________ ____________________ __________ ____________________ __________ ____________________ __________ ____________________ Cooling Temperature 2 ____________________ ____________________ ____________________ ____________________ __________ __________ ____________________ ____________________ ____________________ ____________________ 1 WAKE and RETURN start times s
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. Use Time keys to program WAKE time and Temp keys to program WAKE temperature for Mon-Fri. Repeat sequence for LEAVE, RETURN, and SLEEP.
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. Operating Your Thermostat Hold a temperature indefinitely— Press Hold Temp key once.
Check Current Temperature Setting—Press Run Program key once. If using TEMPORARY CHANGE or HOLD features, pressing this key cancels your change. Cancel a program—Press Set Schedule key until the program to cancel shows. Pressing the two Time keys together cancels the program. Check Programs—Press Set Schedule key repeatedly to see each time and temperature. Press Run Program key once to return to the program.
SETTING FAN SWITCH Fan switching positions are: FAN AUTO: Normal setting for most homes. A single-speed 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. FAN ON: The fan runs continuously. Use for improved air circulation during special occasions or for more efficient electronic air cleaning. HEAT: The thermostat controls the heating system.
As the batteries are running low, the bAt Lo indicator flashes for one to two months before the batteries run out completely. Replace the batteries as soon as possible after the indicator starts flashing. Maintaining Your Thermostat INSTALLING BATTERIES IMPORTANT Batteries must be installed for programming and operation of the thermostat and heating/cooling system. 1.
If the batteries are not replaced sometime during the flashing bAt Lo, the indicator eventually stops flashing. bAt Lo stays on without flashing, indicating the thermostat and heating/cooling system stopped working and the batteries are almost completely dead. After the batteries are completely dead, the bAt Lo indicator disappears, leaving a completely blank display. To remove, press down on left ends of batteries.
Troubleshooting Guide IF… Display will 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. Temperature display will not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming.
Heating will not come on. (Continued) ■ Check the system fuse or circuit breaker and replace or reset, if necessary. ■ If display is blank or displays bAt Lo, install fresh batteries. ■ If temperature setting is higher than current temperature, and SYSTEM ON indicator is lit, contact your local dealer. Cooling will not come on. ■ Check that switch on thermostat is set to COOL. Allow a minimum of five minutes for time-guard protection to expire.
Cooling will not come on. (Continued) ■ 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 highlimit 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.
Thermostat current temperature setting does not match the display temperature to within ± 1°. ■ Check that the wiring hole in the wall behind the wallplate was plugged with insulation to prevent drafts that might adversely affect thermostat operation. ■ Be aware that it is normal for the current setting and display temperature to differ on occasion. ■ During recovery from setback or setup, setting and display temperatures can differ for up to 30 minutes after the recovery period.
NOTICE This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c.1374.
69-0862—2
69-0862—2
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 detective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
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