Honeywell RTH8500D Use and Care Manual

OWNER’S GUIDEU.S. Pat. 6,595,430 Other Patents Pending® U.S. Registered Trademark© 2004 Honeywell International Inc.All Rights Reserved 69-1725-1RT

69-1725-1 10Step 5. Label Old Thermostat Wires1. As you disconnect each wire, use the enclosed wire labels to wrap a wire label around each wire that

11 69-1725-1Step 6. Mount New Wallplate to Wall1. Separate the wallplate from the thermostat as shown.THERMOSTATWALLPLATEWIRE HOLEM22202

69-1725-1 12Step 6. Mount New Wallplate to Wall (Cont)2. Pass the labeled wires through the wire hole on the wallplate.M22203WALL OPENINGLABELED WIRES

13 69-1725-1Step 6. Mount New Wallplate to Wall (Cont)3. Position the wallplate on the wall with the arrow pointing up. Level the wallplate (for appea

69-1725-1 14Step 6. Mount New Wallplate to Wall (Cont)4. Move the wallplate aside and drill holes at the locations marked on the wall. Drill 3/16 in.

15 69-1725-1Step 7. Connect Wires to New Wallplate1. Match the labeled wires to the letter designations on the wallplate.2. Select the correct letter

69-1725-1 16 Step 7. Connect Wires to New Wallplate (Cont)5. Loosen the screw terminals. Insert the labeled wires into the holes on the side of the te

17 69-1725-1Step 7. Connect Wires to New Wallplate (Cont)7. Compare letter designations on your old and new thermostats. Use the information below if

69-1725-1 18Step 7. Connect Wires to New Wallplate (Cont)1M22246If wires will be connected to both RC and R on the new thermostat,remove metal jumper

19 69-1725-1Step 7. Connect Wires to New Wallplate (Cont)8. Compare letter designations on your old and new thermostats. Use the information below if

69-1725-1 2ContentsPrepare for Installation... 3Follow Important Instructions...

69-1725-1 20Step 7. Connect Wires to New Wallplate (Cont)1M22245Leave metal jumper wire between RC and R in place.If the old thermostat had separate w

21 69-1725-1Step 7. Connect Wires to New Wallplate (Cont)9. Push excess wire back into the wall opening. Keep wires in the shaded area.WALLPLATEM22211

69-1725-1 22Step 8. Install Batteries1. Install three fresh AAA alkaline batteries on the back of the thermostat as marked on the thermostat.2. Remove

23 69-1725-1Step 9. Attach New Thermostat to Wallplate1. Align the screw blocks with the pins on the back of the thermostat.2. Push the thermostat str

69-1725-1 24 Step 10. Set the CalendarThis thermostat is designed to automatically keep current time and day in memory for up to ten years, under norm

25 69-1725-1 Step 10. Set the Calendar (Cont)3. Use the arrow keys to set the current time.4. Press the Done key.DONEMONWEDTHUFRISATAATM22227USE ARRO

69-1725-1 26Step 11. Configure Installer Setup1. Use the Installer Setup Menu to match your new thermostat to your heating and/or cooling system. Foll

27 69-1725-1Step 11. Configure Installer Setup (Cont)3. Press and hold the center blank key for approximately five seconds, until the screen changes.4

69-1725-1 2811. Configure Installer Setup (Cont)5. Press the Up or Down arrows to the right of the two-digit number in the lower right corner of the s

29 69-1725-1Step 11. Configure Installer Setup (Cont)8. Press the Up or Down arrows to select your setting for Installer Setup Number 0170.9. After yo

3 69-1725-1Step 1. Prepare for Installation1. Check that the following items are included:If any of the items shown above are missing, call Honeywell

69-1725-1 30Step 11. Configure Installer Setup (Cont)10. If you do not have a number 0180 on the left side of your display, go to the next page.11. If

31 69-1725-1Step 11. Configure Installer Setup (Cont)13. If you do not have a number 0190 on the left side of your display, go to the next page.14. If

69-1725-1 32Step 11. Configure Installer Setup (Cont)16. If you do not have a number 0240 on the left side of your display, go to the next page.17. If

33 69-1725-1Step 11. Configure Installer Setup (Cont)19. Press the Up or Down arrow to select your setting for Installer Setup Number 0320.20. After y

69-1725-1 34Step 11. Configure Installer Setup (Cont)21. Press the Up or Down arrow to select your setting for Installer Setup Number 0330.22. After y

35 69-1725-1Step 11. Configure Installer Setup (Cont)23. Press the Up or Down arrow to select your setting for Installer Setup Number 0500.24. After y

69-1725-1 36Step 11. Configure Installer Setup (Cont)25. Press the Up or Down arrow to select your setting for Installer Setup Number 0530.26. After y

37 69-1725-1Step 11. Configure Installer Setup (Cont)27. Press the Up or Down arrow to select your setting for Installer Setup Number 0640.28. After y

69-1725-1 38Get to Know Your Thermostat DisplayThermostatSCHEDHOLDCLOCKSCREENMORETUEAMFANAUTOSYSTEMHEATFollowingScheduleInsideSet ToM22238FANSELECTS O

39 69-1725-1Get to Know Your Thermostat Display (Cont)DisplaySCHEDHOLDCLOCKSCREENMORETUEAMFANAUTOSYSTEMHEATFollowingScheduleInsideSet ToM22239FANSHOWS

69-1725-1 4Step 1. Prepare for Installation (Cont)2. Check that you have everything required for the installation:• Three AAA alkaline batteries• No.

69-1725-1 40Set System SettingSet System SettingPress the System button to select Heat, Off or Cool:Heat—Thermostat controls the heating system.Off—Bo

41 69-1725-1Set System Setting (Cont)Set Fan Setting Press the Fan button to select Auto or On:Auto—Normal setting for most homes. The fan runs only w

69-1725-1 42Program Your Heating and Cooling ScheduleYour thermostat can control up to four different schedule periods per day:Wake—Period when you aw

43 69-1725-1Program Your Heating and Cooling Schedule (Cont)2. Press Edit key.SCHEDSCHEDHOLDHOLDCLOCK SCREENDONEWAKELEAVE RETURN SLEEP CANCELMONTUE WE

69-1725-1 44Program Your Heating and Cooling Schedule (Cont)3. It is OK to pick multiple days. Select any combination of days to edit. These days are

45 69-1725-1Program Your Heating and Cooling Schedule (Cont)9. When complete, press Done key. “Saving Changes” appears on the screen to indicate chang

69-1725-1 46Cancel a Schedule PeriodNOTE: You may want to cancel a period to match your lifestyle; for example, if someone is always home during the d

47 69-1725-1Set TimeSet Time1. Press Clock.2. Use the arrows to set the current time.3. Press the Done key.The current day of the week should already

69-1725-1 48Set Temperature OverridesHold Temperature Until (Temporary Hold)Hold temperature temporarily until the next scheduled period time or until

49 69-1725-1Set Temperature Overrides (Cont)Permanent HoldPermanent Hold changes the temperature setting until Permanent Hold is cancelled.1. Press th

5 69-1725-1Step 2. Follow Important Instructions1. Do not connect the wires to the new thermostat based on wire color because damage can occur to the

69-1725-1 50Set Temperature Overrides (Cont)Vacation HoldChanges temperature setting for a designated number of days.1. Press the Up and Down arrow ke

51 69-1725-1Clean Your Thermostat Screen1. Press the Screen key. The thermostat locks out all touch keys for 30 seconds to allow for cleaning.2. Use a

69-1725-1 52Use Your Filter TimerThe Filter Timer notifies you when to change your furnace filter.Reset Filter Timer1. “Change Filter” appears on the

53 69-1725-1Understanding Temperature Recovery FeatureYour thermostat comes with a feature called Adaptive Intelligent Recovery™, which eliminates all

69-1725-1 54Replace Batteries1. When the LO Battery indicator is flashing, replace the batteries promptly with three fresh AAA alkaline batteries2. Re

55 69-1725-1Replace Batteries (Cont)3. Remove the old batteries and insert three fresh AAA alkaline batteries, as marked on the thermostat.BACK OF THE

69-1725-1 56Replace Batteries (Cont)4. Align the screw blocks with the pins on the back of the thermostat.5. Push the thermostat straight onto the wal

57 69-1725-1Review Battery Tips1. Replace the batteries as soon as LO Batt flashes in the display. The LO Battery indicator flashes in the display one

69-1725-1 58Built-in Compressor ProtectionThe RTH8500D Thermostat has built-in compressor protection (minimum-off timer) that prevents the compressor

59 69-1725-1Troubleshooting TipsIf . . . Then . . .Key to the right of the Screen key is blank.Verify that this key remains blank unless you set the F

69-1725-1 6Step 3. Remove Old Thermostat1. Turn off power at the heating and/or cooling system or fuse/circuit breaker panel.2. Remove the cover from

69-1725-1 60Cannot set System setting to Cool.Check Installer Setup Number 0170, Heating and/or Cooling System Type; make sure the setting matches the

61 69-1725-1Heating system is running in cool mode.Check Installer Setup Number 0170, Heating and/or Cooling System Type, and make sure the setting ma

69-1725-1 62Customer AssistanceFor assistance with your Honeywell product, please visit www.honeywell.com/yourhome or call Honeywell Customer Care tol

63 69-1725-1Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, und

69-1725-1 G.H. Rev. 10-04 www.honeywell.com/yourhomeAutomation and Control SolutionsHoneywell International Inc. Honeywell Limited-Honeywell Lim

7 69-1725-1Step 4. Follow Special Instructions1. If you have two C and/or C1 wires connected to your old thermostat, do not connect them to your new t

69-1725-1 8Step 4. Follow Special Instructions (Cont)4. If you have only one C and/or C1 wire connected to your old thermostat, connect this wire to C

9 69-1725-1Step 4. Follow Special Instructions (Cont)5. If you find any wires not connected to your old thermostat, do not connect them to your new th