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Honeywell RTH8500D Support Question

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Question posted by dexterdougs on January 30th, 2013

Reset To Factory Settings

can you reset this thermostat back to factory settings

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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. 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 Honeywell product, please visit www.honeywell....

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

...-0823EFS 5-03 • yourhome M22200 If any of the corresponding letter on your old thermostat wire with the terminal of the 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...

Owner's Manual - Page 24

Press the Done key. 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 calendar. 1. Use the arrow keys to set . See Step 11, Configure Installer Setup, for up to ten years, under normal use...

Owner's Manual - Page 25

Use the arrow keys to set the current time. 4. USE ARROWS TO SET TIME MON WED THU FRI SAT DONE M22227 25 69-1725-1 Press the Done key. Set the Calendar (Cont) 3. Step 10.

Owner's Manual - Page 26

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

Owner's Manual - Page 27

Release the center key when the display on your thermostat matches the display below. Press and hold the center blank key for approximately five seconds, until the screen changes. Configure Installer Setup (Cont) 3. TUE CHANGE FILTER UV LAMP HUMIDIFIER PAD Inside Set To SYSTEM EM HEAT OFF COOL Following Schedule PM DONE CANCEL...

Owner's Manual - Page 28

..., etc). Configure Installer Setup (Cont) 5. After you select your setting for Installer Setup Number 0120 below. 6. Date (Day) Select number that represents current (Month) calendar month. ADVANCE TO NEXT INSTALLER SETUP 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...

Owner's Manual - Page 29

... R, W and G on Y and Y2). 9 - Multistage Conventional Heating and Cooling -2 stages of Heat (wires on W and W2) and 2 stages of Cool (wires on new thermostat. 5 - After you select your setting for normally open hot water valves with auxiliary or back-up or auxiliary heat -- Heating and Cooling (Conventional) -- heat pump with wires connected...

Owner's Manual - Page 30

... the left side of your display, press the Up or Down arrow to select your setting, press the Up arrow key to go to the next Installer Setup Number. Gas or...Setting) Settings Fan Control in a call for Installer Setup Number 0180. 12. If you select your setting for heat. After you do not have a number 0180 on the left side of your display, go to the next page. 11. Thermostat...

Owner's Manual - Page 35

... Installer Setup Number 0500. 24. Approximately 1 month -- based on 90 days of fan run time. 5 - Approximately 6 months -- Approximately 3 years -- based on 30 days of fan run time. 3 - based on 10 days of fan run time. 2 - UP ARROW SETTING INSTALLER SETUP NUMBER DONE PRESS TO EXIT INSTALLER SETUP UP ARROW DOWN ARROW Installer Setup Number...

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

... and want your home at a comfortable temperature. FAN AUTO Inside SYSTEM HEAT FRI Set To Following Schedule AM PM SCHED HOLD CLOCK SCREEN M22445 69-1725-1 42 Return-... an energy-saving temperature. Press Sched key. Program Your Heating and Cooling Schedule Your thermostat can control up to a comfortable temperature. Leave-Period when you awaken and want your home back to...

Owner's Manual - Page 43

MON TUE WED THU FRI SAT FAN AUTO OK TO PICK MULTIPLE DAYS SCREEN LOCKED Inside Set To SUN HEAT SYSTEM EM HEAT HEAT OFF COOL AUTO CANCEL PERIOD AM PM Following Schedule COOL DONE SCHED EDIT HOLD WAKE CLOCK SCREEN LEAVE RETURN SLEEP CANCEL M22553 43 69-1725-1 Press Edit key. Program Your Heating and Cooling Schedule (Cont) 2.

Owner's Manual - Page 45

... 69-1725-1 When complete, press Done key. MON TUE WED THU FRI SAVING CHANGES M19956 10. To set a Program Schedule for Sat and Sun. Example: If Mon-Fri was selected first, go back and repeat steps 1-9 for the remaining days of the week, repeat steps 1-9. Program Your Heating and Cooling Schedule (Cont) 9.

Owner's Manual - Page 46

... TUE WED THU FRI OK TO PICK MULTIPLE DAYS FAN SAT SUN HEAT COOL DONE 6. Press Done key. The time, temperature(s) and fan set desired time and temperatures. 69-1725-1 46 Press schedule period you can cancel the Leave and Return periods (the thermostat would then control to the Wake temperature until the...

Owner's Manual - Page 47

Set Time Set Time 1. Use the arrows to set correctly. CANCEL M19958 The current day of the week should already be set the current time. Press the Done key. Press Clock. 2. TUE AM DONE 3. If not, see Step 11, Configure Installer Setup. 47 69-1725-1

Owner's Manual - Page 50

... selected ends.) 2. Notice that Vacation Hold has ended. 69-1725-1 50 When the number of days of days you desire the thermostat to override the schedule. Press the Up and Down arrow keys to set the desired temperature while away on the screen. (This is the time the Vacation Hold override expires after the...

Owner's Manual - Page 52

... Filter Timer appears on the screen when the filter timer expires. 2. Press the Reset key to reset the timer to the timer reload value. (This is the setting you set in step 2.) 5. See Configure Installer Setup Number 0500, for approximate calendar days. 3. Reset Filter Timer 1. Press the Done key. 69-1725-1 52 Use Your Filter Timer...

Owner's Manual - Page 53

... scheduled temperature at your scheduled time. The thermostat then turns on the screen. The thermostat alerts that for you get out of your home and your schedule. Each day it take the furnace to be 70°F. No problem. For example-you . TUE FAN AUTO Inside Set To SYSTEM HEAT Following Schedule Recovery PM...