Honeywell RTH8500D manual

OWNER’S GUIDE U.S. Pat. 6,595,430 Other Patents Pending ® U.S. Registered Trademark © 2004 Honeywell International Inc. All Rights Reserved 69-1725-1 RTH8500D Touch Screen Programmable Thermostat The RTH8500D Thermostat provides electronic control of 24 V ac heating and cooling systems or 750 mV heating systems. For assistance with your Honeywe[...]

69-1725-1 2 Content s Prepare for Ins tallation...................... .............. ............................ ... 3 Follow Important Instructions ............ .............. ................. .............. 5 Remove Old Thermostat.. ........ ....................... .............. ................. 6 Follow S pecial Instructions ............ ...[...]

3 69-1725-1 Step 1. Prep are for Inst allation 1. Check that the following items are included: If any of the items shown above are missing, call Honeywell Customer Care at 1-800-468 -1502 before returning the thermostat to the store. CAUTION TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel before you begin. Match the le[...]

69-1725-1 4 Step 1. Prepare for Installation (Cont) 2. Check that you have everything required for the installation: • Three AAA alkaline batteries • No. 2 Phillips screwdriver and standard pocket screw driver • Drill • Drill bit — use 3/16 in. for drywall; use 7/32 in. for plaster • Level (optional) • Hammer • Pencil • Electrical[...]

5 69-1725-1 Step 2. Follow Import ant Instructions 1. Do not connect the wires to the new thermostat based on wire color because damage can occur to the heating and/or cooling system. These Installation Instructions explain later ho w to use the enclosed wire labels to correctly mark the wires connected to your old thermostat. M22034 Y G RC W OLD T[...]

69-1725-1 6 Step 3. Re move Old Thermostat 1. T urn off power at the heatin g and/or cooling system or fuse/circui t breaker p anel. 2. Remove the cover from the old thermostat. 3. Remove the old thermostat from the wall or wallplate. Do not remove the wires. MERCURY NOTICE If you are replacing a thermostat t hat contains mercury in a sealed tube, [...]

7 69-1725-1 Ste p 4. Foll ow S pecial In structions 1. If you have two C and/or C1 wires connected to your old thermostat, do not connect them to your new thermostat. 2. Disconnect the C and/or C1 wires. Make sure they do not touch each other or any other wires. 3. Wrap the bare end of each C and/or C1 w ire with electrical tape. Y C C R W OLD THER[...]

69-1725-1 8 Step 4. Follo w Special Instructions (Cont) 4. If you have only one C and/or C1 wire connected to your old thermostat, connect this wire to C on the new thermostat. Visit www .honeywell .com/yourhome or call Honeywell Customer Care at 1-800-4 68-1502 before returning the thermostat to the store. Y C R W OLD THERMOST A T WIRE HOLE M22223[...]

9 69-1725-1 Step 4. Follo w Special Instructions (Cont) 5. If you find any wires not con nec ted to your old thermostat, do not connect them to your new thermostat. 6. Wr ap the end of the wires that ar e not connected with electrica l tape. Y G R C R OLD THERMOST A T WIRE HOLE WIRES NOT CONNECTED – DO NOT C ON NE CT TO NEW THERMOST A T M22040 WI[...]

69-1725-1 10 Step 5. Labe l Old Thermost at Wires 1. As you disconnect ea ch wire, use the enclosed wire labels to wrap a wire label around each wire that matches the letter designation. Do not allow the wires to fall into th e wall opening after the wires are disconnected. 2. Remove any remaining part of the old thermostat from the wall. When conn[...]

1 1 69-1725-1 Step 6. Mount New W allplate to W all 1. Separate the wallplate from the thermostat as shown. THERMOSTAT WALLPLATE WIRE HOLE M22202[...]

69-1725-1 12 Step 6. Mount New Wallplate to W all (Cont) 2. Pass the labeled wires through the wire hole on the wallp late. M22203 W ALL OPENING LABELED WIRES W ALLPLA TE WIRE HOLE[...]

13 69-1725-1 Step 6. Mount New Wallplate to W all (Cont) 3. Position the wallplate on the wall with the arrow pointing up. Level the wallplate (for appearance only) an d mark the two mounting holes wi th a pencil. M22204 W ALLPLA TE LEVEL PLACE LEVEL ON SUPPORT T ABS MARK MOUNTING HOLES (2)[...]

69-1725-1 14 Step 6. Mount New Wallplate to W all (Cont) 4. Move the wallplate aside and drill holes at the locations marked on the wall. Drill 3/16 in. holes for drywall or 7/32 in. ho les for plaster . 5. T ap the wall anchors into the drilled holes until even with the wall surface. 6. Position the wallplate o ver the wall anchors. 7. Insert the [...]

15 69-1725-1 Step 7. Co nnect Wi res to New Wallplate 1. Match the labeled wires to the letter designatio ns on the wallplate. 2. Select the correct letter desig nat ions to follow for your system. If you have a standard heating and/or cooling system, use the CONVENT IONAL letter d esignations. If you have a heat pump system, use the HEA T PUMP let[...]

69-1725-1 16 Step 7. Connec t Wires to New W allplate (Cont) 5. Loosen the screw terminals. Insert the labeled wires into the holes on the side of the terminal block that match the letter designations. Tighten the screw terminals. 6. If any of the labeled wires do not match the letter designati ons, see next page for wire connections. M22207 LABELE[...]

17 69-1725-1 Step 7. Connect Wires to New W allplate (Cont) 7. Compare letter designations on y our old and new thermostats. Use the information below if you are wiring a CONVENTION AL System. Use the information on page 20 if you are wiring a Heat Pump System. Do not connect more than one wire to e ach terminal. Be sure to read the notes reference[...]

69-1725-1 18 Step 7. Connect Wires to New W allplate (Cont) 1 M22246 If wires will be connected to both R C and R on the new thermostat, remove metal jumper wire between R C and R. Leave metal jumper wire in place if only one of the terminals, R C or R, will be connected on the new thermostat. If wires were connected to both R and RH terminals on t[...]

19 69-1725-1 Step 7. Connect Wires to New W allplate (Cont) 8. Compare letter designations on y our old and new thermostats. Use the information below if you are wiring a HEA T PUMP System. Be sure to read the note referenced in the numbered triangles above. These numbered notes app ear on the next page. L C Y R RC VR or V or M22210 2 3 3 1 G AUX E[...]

69-1725-1 20 Step 7. Connect Wires to New W allplate (Cont) 1 M22245 Leave metal jumper wire between RC and R in place. If the old thermostat had separate wires on both the V and VR, some system modification is required. Call your local heating and cooling contractor for assistance. If the old thermostat had wires on both O and B, be sure to attach[...]

21 69-1725-1 Step 7. Connect Wires to New W allplate (Cont) 9. Push excess wire back into the wall opening. Keep wires in the shaded area. W ALLPLA TE M2221 1 W ALL OPENING WIRE SHADED AREA[...]

69-1725-1 22 Step 8. Inst all Batteries 1. Install three fresh AAA alkaline batteries on the back of the thermostat as marked on the thermostat. 2. Remove the tab labeled “Remove during installation” in the lower right corner of the thermostat back. BACK OF THERMOST A T M22212 BA TTERIE S (3) + + + + + REMOVE DURING INSTALLATION M19920 REMOVE T[...]

23 69-1725-1 Ste p 9. Att ach New Thermosta t to Wallpl ate 1. Align the screw blocks with t he pins on the back of the thermostat. 2. Push the thermostat straight onto the wallplate until it snaps into place. 3. T urn on the power at the heating and/or cooling system or fuse/ circuit breaker panel. If the wires interfere with m ounting the thermos[...]

69-1725-1 24 Step 10. Set the Calendar This thermostat is designed to au tomatically keep current time and day in memory for up to ten years, under normal use, once the calendar is set. When the thermostat is first powered, the display is ready to set the calendar . 1. Use the arrow keys to set the year , month and day . 2. Press the Done key . The[...]

25 69-1725-1 Step 10. Set th e Calendar (Cont) 3. Use the arrow keys to set the current time. 4. Press the Done key . D O N E MON WED THU FRI SA T A A T M22227 USE A RROWS TO S ET TIME[...]

69-1725-1 26 Step 1 1. Configure Inst aller Setup 1. Use the Installer Setup Menu to ma tch your new thermostat to your heating and/o r cooling system. Follow the step s in this section to set up your thermostat. 2. Press and release the System key . SCHED HOLD CLOCK SCREEN FAN ON AUTO AM THU SYSTEM EM HEAT OFF COOL Following Schedule Inside Set T [...]

27 69-1725-1 Ste p 1 1. Configure Inst aller Setup (Cont ) 3. Press and hold the center blank key for ap proximately five seconds, until the screen changes. 4. Release the center key when t he display on your thermostat matches the disp lay below . D O N E CANCEL TUE PM SYSTEM EM HEAT O F F COOL CHANGE FILTER UV LAMP HUMIDIFIER PAD Following Schedu[...]

69-1725-1 28 1 1. Configure Inst aller Setup (Cont) 5. Press the Up or Down arrows to the right of the two-digit number in the lower right corner of the screen to select your setting for Installer Setup Numb er 0120 below . 6. After you select your setting, press the Up arrow key to the right of 0120 to go to the next Installer Setup Number . 7. Fo[...]

29 69-1725-1 Ste p 1 1. Configure Inst aller Setup (Cont ) 8. Press the Up or Down arrows to select your setti ng for Installer Setup Number 0170. 9. After you select your setting, press the Up arrow to go to the next Installer Setup Number . M22216 0170 System Type Selection 1 - Heating and Cooling (Conventional) -- Gas, oil or electric heating wi[...]

69-1725-1 30 Step 1 1. Configure Inst aller 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 you have a number 0180 on the le ft side of your display , press the Up or Down arrow to select your setting for Installer Setup Number 0180. 12. After you select your setting, press the Up ar[...]

31 69-1725-1 Ste p 1 1. Configure Inst aller 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 you have a number 0190 on the le ft side of your display , press the Up or Down arrow to select your setting for Installer Setup Number 0190. 15. After you select your setting, press the Up a[...]

69-1725-1 32 Step 1 1. Configure Inst aller 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 you have a number 0240 on the le ft side of your display , press the Up or Down arrow to select your setting for Installer Setup Number 0240. 18. After you select your setting, press the Up arr[...]

33 69-1725-1 Ste p 1 1. Configure Inst aller Setup (Cont ) 19. Press the Up or Down arrow to se lect your setting for Installer Setup Number 0320. 20. After you select your setting, press the Up arrow to go to the next Installer Setup Number . M22218 0320 UP ARROW DOWN ARROW SETTING PRE SS T O EXIT IN S T ALLER S ET UP Installer Setup Number Instal[...]

69-1725-1 34 Step 1 1. Configure Inst aller Setup (Cont) 21. Press the Up or Down arrow to select your setting for Installer Setup Number 0330. 22. After you select your setting, press the Up arrow to go to the next Installer Setup Number . M22219 0330 UP ARROW DOWN ARROW SETTING PRE SS T O EXIT IN S T ALLER S ET UP Installer Setup Number Installer[...]

35 69-1725-1 Ste p 1 1. Configure Inst aller Setup (Cont ) 23. Press the Up or Down arrow to se lect your setting for Installer Setup Number 0500. 24. After you select your setting, press the Up arrow to go to the next Installer Setup Number . M22220 0500 UP ARROW DOWN ARROW SETTING PRE SS T O EXIT IN S T ALLER S ET UP Installer Setup Number Instal[...]

69-1725-1 36 Step 1 1. Configure Inst aller Setup (Cont) 25. Press the Up or Down arrow to select your setting for Installer Setup Number 0530. 26. After you select your setting, press the Up arrow to go to the next Installer Setup Number . M22221 0530 UP ARROW DOWN ARROW SETTING PRE SS T O EXIT IN S T ALLER S ET UP Installer Setup Number Installer[...]

37 69-1725-1 Ste p 1 1. Configure Inst aller Setup (Cont ) 27. Press the Up or Down arrow to se lect your setting for Installer Setup Number 0640. 28. After you select your setting, press the Done key to exit the Installer Setup and save yo ur settings. 29. Congratulations! The installation of the thermostat is complete. M22222 0640 UP ARROW DOWN A[...]

69-1725-1 38 Get to Know Y our Thermost at Display Thermostat SC HE D H O L D C L OCK SC REE N M O R E TUE AM FAN A U T O S Y S TE M HEA T F ollowin g Sc h edu l e Inside Se t T o M22238 FAN SELECTS ON/AUTO SYSTEM SELECTS EM. HEAT/HEAT/OFF/COOL UP ARROW RAISES TEMPERATURE S ETTIN G U n DOWN ARROW LOWERS TEMPERATURE SETTING SCHED ENTERS SCHEDULING M[...]

39 69-1725-1 Get to Know Y our Thermost at Display (Cont) Display SC HE D HOLD C L OCK SC REE N M O R E T UE AM FAN A U T O S Y S TE M HEA T Followin g Sc h edu l e In s i de S et T o M22239 FAN SHOWS FAN SETTING TUE SHOWS CURRENT DAY OF THE WEEK SYSTEM SHOWS CURRENT SYSTEM POSITION TIME DISPLAY CURRENT TIME OF DAY, HOLD TIME REMAINING OR NUMBER OF[...]

69-1725-1 40 Set System Set ting Set System Setting Press the System button to select Heat, Off or Cool: Heat —Thermostat controls the heating system. Off —Both the heating a nd cooling systems are off. Cool —Thermostat controls the co oling system. Em. Heat (Heat Pump Systems with Auxiliary Heat)— Thermostat controls emergen cy heat and au[...]

41 69-1725-1 Set 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 when the heating or cooling system is on. On —The fan runs continuously . Use this setting for improved air circulation or for more efficient air clean ing. SCHED HOLD CLOCK SCREEN THU AM FAN A[...]

69-1725-1 42 Program Y our Heating and Coolin g Schedule Y our thermostat can control up to four different schedule periods per day: W ake —Period when you awaken and want your home at a comfortable temperature. Leave —Period when you are away fro m home and want an energy- saving temper ature. Return —Period when you return home and want you[...]

43 69-1725-1 Program Y our Heating and Cooling Schedule (Cont) 2. Press Edit key . SCHED SCHED HOLD HOLD CLOCK SCREEN DONE WAK E LEA VE RETURN SLEEP CANCEL MON TUE WED THU FRI SA T SUN AM PM PM FAN AUTO SYSTEM EM HEA T HEA T OFF COOL AUTO CANCEL PERIOD HEA T COOL Following Schedule Inside Set T o OK TO PICK MULTIPLE DAYS SCREEN LOCKED M22553 EDIT[...]

69-1725-1 44 Program Y our Heating and Cooling Schedule (Cont) 3. It is OK to pick multiple days. Select any combin ation of days to edit. These days are scheduled with the same ti mes and temperatures. Check marks appea r next to days selected. 4. Press W ake key . Once pressed, Wa ke flashes to show it is selected. 5. Press Up and Down keys to mo[...]

45 69-1725-1 Program Y our Heating and Cooling Schedule (Cont) 9. When complete, press Done key . “Saving Chan ges” appears on the screen to indicate changes are being saved to the day(s) modified. 10. T o set a Program Schedule for the remaining days of the week, repeat steps 1-9. Example: If Mo n-Fri was selected first, go back and repeat ste[...]

69-1725-1 46 Cancel a Schedule Period NOTE: Y ou may want to cancel a period to match your lifestyle; for example, if someone is always home during the day on T uesd ay , you can cancel th e Leave and Return periods (the thermostat would then control to the Wake temperature until the Sleep period). 1. Press Sched key . 2. Press Edit key . 3. Select[...]

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

69-1725-1 48 Set T emperature Overrides Hold Temperature Until (Temporary Hold) Hold temperature temporarily until the next scheduled p eriod time or until the time the user sets. 1. Press the Up or Down arrow next to the temperature you want to adjust. “Hold T emperature Until” time appe ars on the screen. The Hold T emperature Until time def [...]

49 69-1725-1 Set T emperature Overr ides (Cont) Permanent Hold Permanent Hold changes the temp erature setting until Permane nt Hold is cancelle d. 1. Press the Hold key . “Permanent Hold” appears on th e screen. 2. Press the Up or Down arrow next to the temperature you want to set during “Hold.” 3. Press the Cancel key to cancel “Permane[...]

69-1725-1 50 Set T emperature Overr ides (Cont) Vacation Hold Changes temperature setting for a designated number of days. 1. Press the Up and Down arrow keys to set the desired temp era- ture while away on vacation. Notice that “Hold T emperature Until” time is shown on the screen. (This is the time the V acation Hold overrid e expires after t[...]

51 69-1725-1 Clean Y our Thermost at Screen 1. Press the Screen key . The ther mostat locks out all touch keys for 30 seconds to allow for cleaning. 2. Use a damp cloth slightly mo istened with water or househol d glass cleaner to clean the screen. 3. Repeat the above steps, as necessary . 4. Press the Done key to return to the Home Screen and norm[...]

69-1725-1 52 Use Y our Filter Timer The Filter Timer notifies you when to change your furnace filter . Reset Filter Timer 1. “Change Filter” appears on the screen when the filter timer expires. 2. Press the Reset key to restart the filter timer . View or Reset Timer Settings Before They Expire 1. Press the More key until the Filter T imer appea[...]

53 69-1725-1 Underst anding T emperature Recovery Feature Y our thermostat come s with a feature called Adaptive Intelligent Recovery™, which eliminates all guesswork when setti ng your schedule. How long does it take the furnace to warm your house in the morning before you ge t out of bed or how long does it take the air condi tioner to cool you[...]

69-1725-1 54 Replace Batteries 1. When the LO Battery indicator is flashing, replace the batteries promptly with three fresh AAA alkaline batteries 2. Remove thermostat from the wallplate by pulling straight out. M19963 M22243 WALL[...]

55 69-1725-1 Replace Batt eries (Cont) 3. Remove the old batteries and insert three fresh AAA alka line batteries, as marked on the thermostat. BACK OF THERMOST A T M22212 BA TTERIE S (3) + + + + +[...]

69-1725-1 56 Replace Batteries (Cont) 4. Align the screw blocks with t he pins on the back of the thermostat. 5. Push the thermostat straight onto the wallplate until it snaps into place. M22213 PINS ON BACK OF THERMOSTAT WALLPLATE TERMINAL SCREW BLOCK[...]

57 69-1725-1 Review Battery T ips 1. Replace the batteries as soon as LO Batt flashes in the display . The LO Battery indicator flashes in the display on e month before the batteries run down complete ly . 2. Always use fresh AAA alkaline ba tteries. Non-alka line batter ies do not last as long and can leak, causing th ermostat damage. 3. Although [...]

69-1725-1 58 Built-in Co mpressor Protection The RTH8500D Thermostat has built-in compressor protection (minimum-off timer) that prevents th e compressor from rest arting too early af ter a shutdown. The minimum-off timer is activat ed af ter the compressor turns off. If there is a call during the minimum-off timer , the thermostat shows “W ait?[...]

59 69-1725-1 T roubleshooting T ips If . . . Then . . . Key to the right of the Screen key is blank. V erify that this key remains blank unless you set the Furnace Filte r Change Reminder . Se e Installer Setup Number 0500 in S tep 1 1. Display is blank. C heck that fresh AAA alkaline batteries are installed as marked on th e thermostat. T emperatu[...]

69-1725-1 60 Cannot set System setting to Cool. Check Installer Setup Number 0170, Heating and/or Cooling System Type; make sure the setting matches the installed heating and/o r cooling system. “Heat On” is not shown in the display . Set the System setting to Heat and set the temperature setting above the room temperature. If “Heat On” is [...]

61 69-1725-1 Heating system is running in cool mode . Check Installer Setup Number 0170, Heating and/or Cooling System Type, and make sure the setting matches the installed heating and/ or cooling system. Heating system does not turn off and the heat temper ature setting is set below the room temperature (“Heat On” is not shown in display). Che[...]

69-1725-1 62 Customer A ssistance For assistance with your Honeywell product, please vi sit www .honeywell.com/yourhome or call Honeywell Customer Care toll free at 1-800-468-1502.[...]

63 69-1725-1 Limited One-Y ear Warrant y Honeywell warrants this product, excluding battery , to be free from defects in the workmanship or materials, under no rmal use and service, for a period of one (1) year from the date of purchase by the c onsumer . If, at any time during th e warranty period, the product is defect ive or malfunctions, Honeyw[...]

69-1725-1 G .H. Rev . 10-04 www .honeywell.com/yourhome Automation and Control Solutio ns Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 5 5422 Scarborough, Ontario M1V 4Z9[...]