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Honeywell RTH8500D Support Question

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Question posted by ffalcochloe on August 3rd, 2014

How To Reset Factory Settings On Honeywell Digital Thermostat

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Related Honeywell RTH8500D Manual Pages

Owner's Manual - Page 1

Read and Save these Instructions U.S. All Rights Reserved 69-1725-1 Pat. 6,595,430 Other Patents Pending ® U.S. Registered Trademark © 2004 Honeywell International Inc. RTH8500D Touch Screen Programmable Thermostat OWNER'S GUIDE The RTH8500D Thermostat provides electronic control of 24 Vac heating and cooling systems or 750 mV heating systems. For assistance with your ...
Owner's Manual - Page 2

... Wallplate 15 Install Batteries 22 Attach New Thermostat to Wallplate 23 Set the Calendar 24 Configure Installer Setup 26 Get to Know Your Thermostat Display 38 Set System Setting 40 Program Your Heating and Cooling Schedule 42 Cancel a Schedule Period 46 Set Time 47 Set Temperature Overrides 48 Clean Your Thermostat Screen 51 Use Your Filter Timer 52...
Owner's Manual - Page 3

... items shown above are included: Inside Set OWNER'S GUIDE Inside Set To Read and save these instructions WALLPLATE THERMOSTAT MOUNTING SCREWS (2) AND WALL ANCHORS (2) OWNER'S GUIDE WIRE LABELS CAUTION CARD CAUTION TURN OFF POWER to the store. 3 69-1725-1 Check that the following items are missing, call Honeywell Customer Care at 1-800-468-1502...
Owner's Manual - Page 8

Follow Special Instructions (Cont) 4. OLD THERMOSTAT Y G C W R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE CONNECT TO THE "C" ON THE NEW THERMOSTAT M22223 69-1725-1 8 If you have only one C and/or C1 wire connected to your old thermostat, connect this wire to the store. Visit www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468...
Owner's Manual - Page 20

...local heating and cooling contractor for assistance. 3 If the old thermostat had wires on both the V and VR, some system modification.... 2 If the old thermostat had wires on the new thermostat. M22245 69-1725-1 20 Call your local heating and cooling contractor for assistance. Step 7. Connect Wires to the C, contact Honeywell. 4 If the old thermostat had separate wires on both...
Owner's Manual - Page 24

... normal use, once the calendar is ready to set . Set the Calendar This thermostat is designed to automatically keep current time and day in memory for instructions. 69-1725-1 24 When the thermostat is first powered, the display is set the year, month and day. 2. Use the arrow keys to set any time. Step 10. Press the Done...
Owner's Manual - Page 26

Follow the steps in this section to your thermostat. 2. Step 11. FAN ON Inside AUTO THU Set To SYSTEM EM HEAT OFF COOL Following Schedule AM SCHED HOLD CLOCK SCREEN M22225 69-1725-1 26 Configure Installer Setup 1. Use the Installer Setup Menu to match your new thermostat to set up your heating and/or cooling system. Press and release the System key.
Owner's Manual - Page 27

MON WED THU FRI SAT SUN DONE 27 M22214 69-1725-1 Step 11. Release the center key when the display on your thermostat matches the display below. Configure Installer Setup (Cont) 3. Press and hold the center blank key for approximately five seconds, until the screen changes. TUE CHANGE ...
Owner's Manual - Page 28

... INSTALLER SETUP NUMBER DONE PRESS TO EXIT INSTALLER SETUP FACTORY SETTING CHANGE THE FACTORY SETTING Installer Setup Number 0120 0130 0140 0150 Installer Setup Name Date (Year Upper) (Select Your Setting) Settings Select first two digits of current calendar year (20 for year 2005, etc). After you select your setting for Installer Setup Number 0120 below. 6. Configure Installer...
Owner's Manual - Page 29

... water heat with three wires connected to the next Installer Setup Number. Press the Up or Down arrows to select your setting, press the Up arrow to go to new thermostat or for Installer Setup Number 0170. 9. Heating and Cooling (Conventional) -- M22216 29 69-1725-1 Configure Installer Setup (Cont) 8. Multistage Heat Pumps...
Owner's Manual - Page 30

... to go to the next Installer Setup Number. Gas or Oil Heat -- After you select your setting for heat. 1 - Electric Heat -- Thermostat controls fan in Heating 0 - Step 11. Configure Installer Setup (Cont) 10. UP ARROW SETTING INSTALLER SETUP NUMBER DONE PRESS TO EXIT INSTALLER SETUP UP ARROW DOWN ARROW Installer Setup Number 0180...
Owner's Manual - Page 37

... the Done key to select your settings. 29. The installation of the thermostat is complete. M22222 37 69-1725-1 UP ARROW SETTING INSTALLER SETUP NUMBER DONE PRESS TO EXIT INSTALLER SETUP UP ARROW DOWN ARROW Installer Setup Number 0640 Installer Setup Name Clock Format (Select Your Setting) Settings 12 - 12-hour clock format. 24 - 24...
Owner's Manual - Page 38

... Know Your Thermostat Display Thermostat SYSTEM SELECTS EM. HEAT/HEAT/OFF/COOL FAN SELECTS ON/AUTO TUE FAN Inside AUTO SYSTEM HEAT AM DOWN ARROW LOWERS TEMPERATURE SETTING UP ARROW RAISES TEMPERATURE SETTING Set To Following Schedule SCHED HOLD CLOCK SCREEN MORE SCHED CLOCK ENTERS SETS THE SCHEDULING TIME MODE FORWARD HOLD OR BACK SETS A PERMANENT HOLD...
Owner's Manual - Page 39

Get to Know Your Thermostat Display (Cont) Display TUE SHOWS CURRENT DAY OF THE WEEK FAN SHOWS FAN SETTING INSIDE TEMPERATURE SHOWS THE CURRENT INSIDE TEMPERATURE SET TO TEMPERATURE SHOWS THE CURRENT SET TEMPERATURE TUE FAN Inside AUTO Set To SYSTEM HEAT Following Schedule AM SCHED HOLD CLOCK SCREEN MORE SYSTEM SHOWS CURRENT SYSTEM POSITION TIME DISPLAY...
Owner's Manual - Page 42

... Heating and Cooling Schedule Your thermostat can control up to a comfortable temperature. Press Sched key. Sleep-Period when you are away from home and want an energy-saving temperature. Return-Period when you are asleep and want an energysaving temperature. FAN AUTO Inside SYSTEM HEAT FRI Set To Following Schedule AM PM...
Owner's Manual - Page 46

...selected period is always home during the day on Tuesday, you want to cancel a period to match your lifestyle; Press Done key. Select the Day(s) of the week desired. 4. Once...set - Press Cancel Period key. for example, if someone is removed, indicating the scheduled period was cancelled. Press Edit key. 3. Press schedule period you can cancel the Leave and Return periods (the thermostat...
Owner's Manual - Page 48

...Time key to set the desired time...Hold Temperature Until" and resume schedule. TUE FAN AUTO Inside Set To SYSTEM HEAT Hold Temperature Until PM SCHED HOLD CLOCK SCREEN ... the "Temporary Hold" has ended. Set Temperature Overrides Hold Temperature Until (Temporary Hold) Hold temperature temporarily ...scheduled period time or until the time the user sets. 1. "Hold Temperature Until" time appears on the...
Owner's Manual - Page 50

... and Down arrow keys to set the desired temperature while away on the screen. (This is shown on vacation. Set Temperature Overrides (Cont) Vacation Hold Changes temperature setting for a designated number of days you desire the thermostat to override the schedule. FAN Inside AUTO THU Set To SYSTEM HEAT Hold Temperature Until DAYS SCHED CLOCK SCREEN CANCEL...
Owner's Manual - Page 52

... TUE WED THU FRI SAT SUN FAN AUTO OK TO PICK MULTIPLE DAYS SCREEN LOCKED CHANGE FILTER UV LAMP HUMIDIFIER PAD Inside Set To SYSTEM RESET HEAT PM Following Schedule SCHED HOLD CLOCK SCREEN MORE M19975 View or Reset Timer Settings Before They Expire 1. Press the More key until the Filter Timer appears on the...
Owner's Manual - Page 53

...return from work? TUE FAN AUTO Inside Set To SYSTEM HEAT Following Schedule Recovery PM SCHED HOLD CLOCK SCREEN MORE M22301 It takes about a week for the thermostat to adjust to have your home reach ... you get out of bed or how long does it adjusts the next day's recovery start time accordingly. 53 69-1725-1 The thermostat then turns on the heating or cooling at just the right time to...

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