Operating Manual RTH8500 Touchscreen Programmable Thermostat BE CAREFUL! Never use sharp instruments, such as a pencil or pen, to press touchscreen keys. To prevent damage to the thermostat, always press keys with your fingertip. Need Help? For assistance with this product please visit http://yourhome.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502 Read and save these instructions ® U.S. Registered Trademark. US Patent No. 6,595,430 and other patents pending. Copyright © 2006 Honeywell International Inc. All rights reserved. RTH8500 Table of contents About your new thermostat Thermostat features ..........................2 Programming at a glance..................3 Quick reference to controls ..............4 Quick reference to status display ....5 Appendices Battery replacement ........................18 In case of difficulty ..........................19 Limited warranty ..............................21 Programming & Operation Clock setting ......................................6 Fan setting ........................................7 System setting....................................8 Using program schedules ................9 Program schedule overrides ..........12 Vacation hold ..................................14 Special features ..............................15 Screen cleaning ..............................16 Furnace filter reminder ....................17 This thermostat is ready to go! Your new thermostat is preprogrammed and ready to go. See page 3 to check settings. CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). 1 Operating Manual About your new thermostat Congratulations! You've just purchased the world's most advanced, easyto-use thermostat. It has been designed to give you many years of reliable service and touchscreen climate control. Features · · · · · · · 7-day program schedules maximize comfort and economy. Armchair programming: Just pull thermostat from the wall to set schedules. EnergyStar® compliant to greatly reduce your heating/cooling expenses. One-touch temp control overrides program schedule at any time. Precise comfort control keeps temperature within 1°F of the level you set. Change/check reminders let you know when to replace filters and batteries. Large touchscreen display with backlight is easy to read -- even in the dark. 2 RTH8500 This thermostat is ready to go! Your new thermostat is pre-programmed and ready to go. All you have to do is set the time and day. Then check the settings below and change if needed: 1 Set clock......................................................................................See page 6 2 Select fan setting: Preset to Auto ........................To change, see page 7 3 Select system setting: Preset to Heat ..................To change, see page 8 4 Program schedules: Preset to energy-saving levels while you're at work or asleep (assumes you wake at 6 am, leave at 8 am, return at 6 pm and go to bed at 10 pm) ..................................To change, see pages 10-13 ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and manually adjust the temperature (see pages 12-14). 3 Operating Manual Quick reference to controls Press day(s) to set program schedule (see page 11) Press to adjust temperature settings (see pages 11-14) Press to select fan operation (see page 7) Press to select system type (see page 8) MON FAN AUTO TUE WED THU FRI SAT SUN OK TO PICK MULTIPLE DAYS Inside 70 AM HOLD CLOCK Set To 70 Press for more options (select models only) SYSTEM HEAT Following Schedule Press to set program schedule (see page 11) 6:01 SCHED SCREEN MORE Press to override program schedule (see pages 12-14) Press to set clock (see page 6) Press to lock keypad for 30 seconds to clean screen (see page 16). 4 RTH8500 Quick reference to status display Current inside temperature Current day of week Temperature setting WED FAN Inside Fan setting AUTO 70 AM HOLD CLOCK Set To 70 SYSTEM Following Schedule Recovery Program schedule on (does not display when off) Smart Response® Technology in effect (see page 15) System setting HEAT 6:01 SCHED SCREEN MORE Current time Other display messages: · · · Cool On: Cooling system is activated Heat On: Heating system is activated Aux Heat On: Auxiliary heating system is activated (heat pump systems only) 5 Operating Manual Clock setting Press CLOCK 6:01 SCHED AM HOLD CLOCK SCREEN MORE To set the current time display, press clock, then press or to adjust the time. Press and hold or to advance the time more quickly. Press CANCEL DONE to save & exit (or press to exit without changing the time). Adjust time, then press DONE 6:02 DONE AM CANCEL Note: The real-time clock should never require adjustment since it automatically updates for daylight savings time, and stores all date/time information. Note: To change the current week day display, see System Setup in your Installation Guide. 6 RTH8500 Fan setting Press WED FAN AUTO FAN to select fan operation: · Inside On: Fan is always on. Auto: Fan runs only when the heating or cooling system is on. 70 AM HOLD CLOCK Set To 70 · SYSTEM HEAT Following Schedule 6:01 SCHED SCREEN MORE Press FAN 7 Operating Manual System setting Press the WED FAN AUTO SYSTEM button to select: · Inside 70 AM HOLD CLOCK Set To 70 · · SYSTEM HEAT Following Schedule 6:01 SCHED SCREEN MORE · · Note: The Auto and Em Heat system settings may not appear, depending on how your thermostat was installed. Heat: Thermostat controls only the heating system. Cool: Thermostat controls only the cooling system. Auto: Thermostat automatically selects heating or cooling depending on the indoor temperature. Off: Heating and cooling systems are off. Em Heat (only for heat pumps with auxiliary heat): Thermostat controls Emergency and Auxiliary Heat. Compressor is locked out. 8 RTH8500 Save money by setting program schedules It's easy to program your system for maximum energy savings. You can program four time periods each day, with different settings for weekdays and weekends. WAKE 6:00 am 70 ° LEAVE 8:00 am Set to the time you awaken and the temperature you want during the morning, until you leave for the day. Set to the time you leave home and the temperature you want while you are away (usually an energy-saving ° level). RETURN Set to the time you return home and the temperature 6:00 pm you want during the evening, until bedtime. 62 70 ° SLEEP 10:00 pm 62 ° Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level). 9 Operating Manual EnergyStar® settings for maximum cost savings This thermostat is pre-set to use EnergyStar® program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.) Heat (Mon-Fri) Wake (6:00 am) Cool (Mon-Fri) Heat (Sat-Sun) Cool (Sat-Sun) Leave (8:00 am) Return (6:00 pm) Sleep (10:00 pm) 70 ° 62 ° 70 ° 62 ° 78 ° 85 ° 78 ° 82° [Or cancel period] [Or cancel period] 70 ° 62 ° 70 ° 62 ° [Or cancel period] [Or cancel period] 78 ° 85 ° 78 ° 82° 10 RTH8500 To adjust program schedules Press SCHED SCHED HOLD CLOCK SCREEN MORE Press DONE EDIT EDIT WAKE LEAVE RETURN SLEEP CANCEL Select day(s) MON FAN AUTO CANCEL PERIOD TUE WED Set heat/cool levels THU FRI SAT SUN OK TO PICK MULTIPLE DAYS 70 6:00 78 AM LEAVE RETURN SLEEP HEAT 1 Press SCHED, then EDIT. M 2 Press day buttons (MON-SUN) to select day(s). 3 Press or to set Wake time for selected day(s). 4 Press or to set Heat and Cool temperature for this time period. L 5 Press other time periods (LEAVE, RETURN, SLEEP) to set time and temperatures for each. 6 Press DONE to save & exit (or press CANCEL to exit without saving changes). Note: You can press CANCEL PERIOD to eliminate any unwanted time period. COOL DONE WAKE CANCEL Set time for program period start 11 Operating Manual Program schedule override (temporary) Adjust temperature WED FAN AUTO Inside 70 AM HOLD CLOCK Set To 73 Press or to immediately adjust the temperature. This will temporarily override the temperature setting for the current time period. The new temperature will be maintained until the time you set. When the timer expires, the program schedule will resume and set the temperature to the level you've programmed for the current time period. To cancel the temporary setting at any time, press CANCEL (or SCHED). The program schedule will resume. Heat On SYSTEM HEAT Hold Temperature Until 8:00 SCHED SCREEN MORE CANCEL Press to set timer Press CANCEL (or SCHED) to resume program schedule 12 RTH8500 Program schedule override (permanent) Press HOLD Adjust temperature WED Press HOLD to permanently adjust the temperature. This will turn off the program schedule. Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press CANCEL (or SCHED) to cancel "Hold" and resume the program schedule. FAN AUTO Inside 70 AM HOLD CLOCK Set To 73 Heat On SYSTEM HEAT 8:00 Permanent Hold SCHED SCREEN MORE CANCEL Press CANCEL (or SCHED) to resume program schedule 13 Operating Manual Vacation hold 1 Set temperature FAN AUTO This feature can suspend the program schedule for extended periods of time. Press or to set the temperature you want, then press or to set the time of day you want the schedule to resume when you return. Press HOLD twice, then press or to select the number of days. Whatever temperature you set will be maintained 24 hours a day for the number of days you select. After this number of days have elapsed, the previously programmed schedule will resume at the time you set. If you return earlier than expected, press CANCEL (or SCHED) to cancel "Hold" and resume the program schedule. 14 Inside 70 HOLD CLOCK Set To 55 SYSTEM HEAT Hold Temperature Until 6:00pm SCHED SCREEN MORE CANCEL 2 Press to set time for schedule to resume 3 Press SYSTEM HEAT HOLD twice Hold Temperature Until 14 SCHED HOLD DAYS CLOCK SCREEN MORE CANCEL 4 Press to select number of days RTH8500 Special features Smart Response® Technology: This feature allows the thermostat to "learn" how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6. The message "Recovery" is displayed when the system is activated before a scheduled time period. Compressor Protection: This feature forces the compressor to wait a few minutes before restarting, to prevent equipment damage. During the wait time, the message "Wait" is displayed on screen. Auto Changeover: This feature is used in climates where both air conditioning and heating are used on the same day. When the system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation. CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside temperature drops below 50°F (10°C). 15 Operating Manual Screen cleaning Press SCREEN 6:00 SCHED PM Press SCREEN to lock the screen for cleaning. The screen will remain locked for 30 seconds so you can clean the screen without changing any settings. CLOCK SCREEN MORE HOLD Screen lock timer (30 seconds) After 30 seconds, press DONE to resume normal operation, or press SCREEN again if you require more time for cleaning. Note: Do not spray any liquid directly on the thermostat. Spray liquids onto a cloth, then use the damp cloth to clean the screen. Use water or household glass cleaner. Avoid abrasive cleansers. 30 OKAY TO CLEAN SCREEN 16 RTH8500 Furnace filter reminder Press RESET after changing filter FAN AUTO CHANGE FILTER Inside 70 HOLD CLOCK Set To 55 If activated during installation, the furnace filter reminder alerts you when it is time to replace your filter. Press RESET after changing the filter, to restart the timer. To change the reminder interval: 1 Press MORE, SYSTEM HEAT RESET 6:00pm SCHED SCREEN MORE then EDIT. Press MORE to change reminder interval Filter 2 Press or to select the desired interval, then press DONE. 3 Press RESET. DONE 60 Days DONE 4 Press to save and exit. 17 Operating Manual Battery replacement Grasp thermostat and pull to remove from wallplate Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when installed. Install fresh batteries immediately when the LO BATT ...