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.com/yourhome or call Honeywell Customer Care toll free at 1-800-468-1502. Read and Save these Instructions U.S. Pat. 6,595,430 Other Patents Pending ® U.S. Registered Trademark © 2004 Honeywell International Inc. All Rights Reserved 69-1725-1 Contents Prepare for Installation................................................................... 3 Follow Important Instructions......................................................... 5 Remove Old Thermostat................................................................ 6 Follow Special Instructions ............................................................ 7 Label Old Thermostat Wires .......................................................... 10 Mount New Wallplate to Wall ......................................................... 11 Connect Wires to New 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 Understanding Temperature Recovery Feature............................. 53 Replace Batteries .......................................................................... 54 Review Battery Tips ....................................................................... 57 Built-in Compressor Protection ...................................................... 58 Troubleshooting Tips ..................................................................... 59 Customer Assistance..................................................................... 62 Limited One-Year Warranty ........................................................... 63 69-1725-1 2 Step 1. Prepare for Installation 1. Check that the following items are included: Insi de Set WALLPLATE THERMOSTAT MOUNTING SCREWS (2) AND WALL ANCHORS (2) OWNER'S GUIDE WIRE LABELS CAUTION CARD OWNER'S GUIDE CAUTION TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel before you begin. Match the letter of your old thermostat wire with the terminal of the corresponding letter on your new thermostat or base. N Inside Set To de la letra correspondiente de B G R B G R Y2 H RC W X1 Y2 H RC W C L RH W1 C L RH W1 X2 E O T W2 Y E O T W2 F P U W3 F P U W3 Y1 V/VR V/VR Read and save these instructions X X 69-0823EFS 5-03 · yourhome M22200 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. 3 69-1725-1 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 screwdriver · Drill · Drill bit -- use 3/16 in. for drywall; use 7/32 in. for plaster · Level (optional) · Hammer · Pencil · Electrical tape 69-1725-1 4 Step 2. Follow Important 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 how to use the enclosed wire labels to correctly mark the wires connected to your old thermostat. OLD THERMOSTAT YELLOW WHITE Y W RED ! DO NOT WIRE NEW THERMOSTAT BASED ON WIRE COLOR. G GREEN R RC ORANGE M22034 5 69-1725-1 Step 3. Remove Old Thermostat 1. 2. 3. Turn off power at the heating and/or cooling system or fuse/circuit breaker panel. Remove the cover from the old thermostat. Remove the old thermostat from the wall or wallplate. Do not remove the wires. OLD THERMOSTAT WALLPLATE Y W THERMOSTAT G R C .18 .2 .9 .7 .5 O .25 N GER .4 .3 COVER If you are replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of an old thermostat containing mercury in a sealed tube. MERCURY NOTICE L M22036 69-1725-1 6 Step 4. Follow Special Instructions 1. 2. 3. If you have two C and/or C1 wires connected to your old thermostat, do not connect them to your new thermostat. Disconnect the C and/or C1 wires. Make sure they do not touch each other or any other wires. Wrap the bare end of each C and/or C1 wire with electrical tape. OLD THERMOSTAT Y G C R C W LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE DO NOT CONNECT TO NEW THERMOSTAT M22201 7 69-1725-1 Step 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 on the new thermostat. Visit www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to the store. OLD THERMOSTAT Y G W LETTER DESIGNATION SCREW TERMINAL WIRE R C WIRE HOLE CONNECT TO THE "C" ON THE NEW THERMOSTAT M22223 69-1725-1 8 Step 4. Follow Special Instructions (Cont) 5. 6. If you find any wires not connected to your old thermostat, do not connect them to your new thermostat. Wrap the end of the wires that are not connected with electrical tape. OLD THERMOSTAT Y W LETTER DESIGNATION SCREW TERMINAL G R RC WIRE WIRE HOLE WIRES NOT CONNECTED ­ DO NOT CONNECT TO NEW THERMOSTAT M22040 9 69-1725-1 Step 5. Label Old Thermostat Wires 1. As you disconnect each 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 the wall opening after the wires are disconnected. Remove any remaining part of the old thermostat from the wall. 2. OLD THERMOSTAT WIRE LABEL LETTER DESIGNATION SCREW TERMINAL Y W Y G W G R R WIRE RC RC WIRE HOLE M22039 When connecting the wires to the new thermostat, refer to the wire labels. Do not connect wires to your new thermostat based on the color of the wire. 69-1725-1 10 Step 6. Mount New Wallplate to Wall 1. Separate the wallplate from the thermostat as shown. WALLPLATE WIRE HOLE THERMOSTAT M22202 11 69-1725-1 Step 6. Mount New Wallplate to Wall (Cont) 2. Pass the labeled wires through the wire hole on the wallplate. WALL OPENING WIRE HOLE WALLPLATE LABELED WIRES M22203 69-1725-1 12 Step 6. Mount New Wallplate to Wall (Cont) 3. Position the wallplate on the wall with the arrow pointing up. Level the wallplate (for appearance only) and mark the two mounting holes with a pencil. PLACE LEVEL ON SUPPORT TABS LEVEL MARK MOUNTING HOLES (2) WALLPLATE M22204 13 69-1725-1 Step 6. Mount New Wallplate to Wall (Cont) 4. 5. 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. holes for plaster. Tap the wall anchors into the drilled holes until even with the wall surface. DRILLED HOLES (2) WALL ANCHORS (2) WALLPLATE M22205 MOUNTING SCREWS (2) 6. 7. Position the wallplate over the wall anchors. Insert the mounting screws into the wall anchors. Check leveling, if desired, and tighten the mounting screws. 69-1725-1 14 Step 7. Connect Wires to New Wallplate 1. 2. Match the labeled wires to the letter designations on the wallplate. Select the correct letter designations to follow for your system. If you have a standard heating and/or cooling system, use the CONVENTIONAL letter designations. If you have a heat pump system, use the HEAT PUMP letter designations to wire the new thermostat. METAL JUMPER WIRE TERMINAL BLOCK SCREW TERMINALS LETTER DESIGNATIONS WALLPLATE RC R W Y G C M22206 3. 4. If wires are to be connected to both Rc and R, loosen the Rc and R screw terminals and remove the metal jumper wire. If only one of the terminals, Rc or R, is to be connected, leave the metal jumper wire in place. See table on page 29 to help you determine if you have a CONVENTIONAL or HEAT PUMP system. 15 69-1725-1 Step 7. Connect Wires to New Wallplate (Cont) 5. 6. 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. If any of the labeled wires do not match the letter designations, see next page for wire connections. LABELED WIRES TERMINAL BLOCK SCREW TERMINALS LETTER DESIGNATIONS WALLPLATE RC RC R W R WIRE HOLE W Y Y G C (NOT USED) G INSERT WIRE IN HOLE M22207 69-1725-1 16 Step 7. Connect Wires to New Wallplate (Cont) 7. Compare letter designations on your old and new thermostats. Use the information below if you are wiring a CONVENTIONAL System. Use the information on page 20 if you are wiring a Heat Pump System. CONVENTIONAL letter designations on the new thermostat 1 Possible letter designations on the labeled wires 2 RC or R RC 1 2 R or RH, 4, V R W or W1, H W Y or Y1, M Y G or F G 3 C or C1, X, B 4 C Y2 W2 Y2 W2 M22208 Do not connect more than one wire to each terminal. Be sure to read the notes referenced in the numbered triangles above. These numbered notes appear on the next page. 17 69-1725-1 Step 7. Connect Wires to New Wallplate (Cont) NOTES FOR CONVENTIONAL HEATING AND COOLING SYSTEMS 1 If wires will be connected to both RC and R on the new thermostat, remove metal jumper wire between RC and R. Leave metal jumper wire in place if only one of the terminals, RC or R, will be connected on the new thermostat. 2 If wires were connected to both R and RH terminals on the old thermostat, remove metal jumper wire between RC and R on the new thermostat. Connect the old R to the new RC and the old RH to the new R. 3 If two C and/or C1 wires were connected to the old thermostat, do not connect them to the new thermostat. Wrap the bare end of each wire separately with electrical tape and do not use. 4 If one C and/or C1 wire was connected to the old thermostat, the wire should be connected to the "C" letter designation on the new thermostat. M22246 69-1725-1 18 Step 7. Connect Wires to New Wallplate (Cont) 8. Compare letter designations on your old and new thermostats. Use the information below if you are wiring a HEAT PUMP System. Possible letter designations on the labeled wires HEAT PUMP letter designations on the new thermostat 1 2 VR or V or R RC R 3 H or B, O O/B Y1 or M or Y Y G C L E AUX M22210 F or G 3 X or B, C F or L X2 or X, E 4 AUX, W1, W or W2 Be sure to read the note referenced in the numbered triangles above. These numbered notes appear on the next page. 19 69-1725-1 Step 7. Connect Wires to New Wallplate (Cont) NOTES FOR HEAT PUMP SYSTEMS 1 Leave metal jumper wire between RC and R in place. 2 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. 3 If the old thermostat had wires on both O and B, be sure to attach the B wire to the C letter designation on the new thermostat. If another wire is already matched to the C, contact Honeywell. 4 If the old thermostat had wires on W1, Y1 and W2, some system modification is required. Call your local heating and cooling contractor for assistance. M22245 69-1725-1 20 Step 7. Connect Wires to New Wallplate (Cont) 9. Push excess wire back into the wall opening. Keep wires in the shaded area. WIRE WALLPLATE WALL OPENING SHADED AREA M22211 21 69-1725-1 Step 8. Install Batteries 1. Install three fresh AAA alkaline batteries on the back of the thermostat as marked on the thermostat. BACK OF THERMOSTAT + + BATTERIES (3) + M22212 2. Remove the tab labeled "Remove during installation" in the lower right corner of the thermostat back. REMOVE DURING INSTALLATION REMOVE TAB REMOVE DURING INSTALLATION M19920 69-1725-1 22 Step 9. Attach New Thermostat to Wallplate 1. Align the screw blocks with the pins on the back of the thermostat. WALLPLATE PINS ON BACK OF THERMOSTAT TERMINAL SCREW BLOCK M22213 2. 3. Push the thermostat straight onto the wallplate until it snaps into place. Turn on the power at the heating and/or cooling system or fuse/ circuit breaker panel. If the wires interfere with mounting the thermostat to the wallplate, push the excess wire back into the wall opening. 23 69-1725-1 Step 10. Set the Calendar This thermostat is designed to automatically 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. 2. Use the arrow keys to set the year, month and day. Press the Done key. SET CURRENT DATE SET MONTH MON TUE W WED THU FRI DONE USE ARROWS TO SET YEAR M22226 The calendar can be set any time. See Step 11, Configure Installer Setup, for instructions. 69-1725-1 24 Step 10. Set the Calendar (Cont) 3. 4. Use the arrow keys to set the current time. Press the Done key. USE ARROWS TO SET TIME MON WED THU FRI SAT AT DONE M22227 25 69-1725-1 Step 11. Configure Installer Setup 1. 2. Use the Installer Setup Menu to match your new thermostat to your heating and/or cooling system. Follow the steps in this section to set up your thermostat. Press and release the System key. THU FAN ON AUTO Inside Set To SYSTEM EM HEAT OFF COOL AM Following Schedule SCHED HOLD CLOCK SCREEN M22225 69-1725-1 26 Step 11. Configure Installer Setup (Cont) 3. Press and hold the center blank key for approximately five seconds, until the screen changes. TUE CHANGE FILTER UV LAMP HUMIDIFIER PAD Inside Set To SYSTEM EM HEAT OFF COOL Following Schedule PM DONE CANCEL M19969 4. Release the center key when the display on your thermostat matches the display below. MON WED THU FRI SAT AT SUN DONE M22214 27 69-1725-1 11. Configure Installer Setup (Cont) 5. 6. 7. 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 Number 0120 below. After you select your setting, press the Up arrow key to the right of 0120 to go to the next Installer Setup Number. Follow steps 5 and 6 to set Installer Setup Numbers 0130, 0140 and 0150 to complete setting the calendar. ADVANCE TO NEXT INSTALLER SETUP INSTALLER SETUP NUMBER FACTORY SETTING CHANGE THE FACTORY SETTING DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0120 0130 0140 0150 Installer Setup Name Date (Year Upper) Date (Year Lower) Date (Month) Date (Day) (Select Your Setting) Settings Select first two digits of current calendar year (20 for year 2005, etc). Select last two digits of current calendar year (05 for year 2005, etc). Select number that represents current calendar month. Select number that represents current calendar date. M22215 69-1725-1 28 Step 11. Configure Installer Setup (Cont) 8. 9. Press the Up or Down arrows to select your setting for Installer Setup Number 0170. After you select your setting, press the Up arrow to go to the next Installer Setup Number. UP ARROW INSTALLER SETUP NUMBER PRESS TO EXIT INSTALLER SETUP SETTING UP ARROW DOWN ARROW DONE Installer Installer Setup Setup Number Name 0170 System Type Selection (Select Your Setting) Settings 1 - Heating and Cooling (Conventional) -- Gas, oil or electric heating with central air conditioning. 2 - Single-stage Heat Pump with no back-up or auxiliary heat -- the compressor runs in both heating and cooling. 3 - Heat Only with no fan (Conventional) -- Gas, oil or electric heating without central air conditioning. No wire on the G terminal on new thermostat. 4 - Heat Only with fan (Conventional) -- Gas, oil or electric heating without central air conditioning. Typically wires are R, W and G on new thermostat. 5 - Hot Water Heat Only (Conventional) -- Gas or Oil hot water heat with three wires connected to new thermostat or for normally open hot water valves with wires connected to R and Y on new thermostat. 6 - Cool Only (Conventional) -- Central air conditioning only. 7 - Multistage Heat Pumps -- heat pump with auxiliary or back-up heat. 8 - Multistage Conventional Heating and Cooling -2 stages of Heat (wires on W and W2) and 2 stages of Cool (wires on Y and Y2). 9 - Multistage Conventional Heating and Cooling -2 stages of heat (wires on W and W2) and 1 stage of Cool (wire on Y). 10 - Multistage Conventional Heating and Cooling -1 stage of heat (wire on W) and 2 stages of Cool (wires on Y and Y2). M22216 29 69-1725-1 Step 11. Configure Installer Setup (Cont) 10. 11. 12. If you do not have a number 0180 on the left side of your display, go to the next page. If you have a number 0180 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0180. After you select your setting, press the Up arrow key to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0180 Installer Setup Name (Select Your Setting) Settings Fan Control 0 - Gas or Oil Heat -- Heating system controls fan in a call for heat. in Heating 1 - Electric Heat -- Thermostat controls fan in a call for heat. M22217 69-1725-1 30 Step 11. Configure Installer Setup (Cont) 13. 14. 15. If you do not have a number 0190 on the left side of your display, go to the next page. If you have a number 0190 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0190. After you select your setting, press the Up arrow key to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0190 Installer Setup Name (Select Your Setting) Settings Heat Pump 0 - Changeover Valve in Cooling -Use this setting if you connected a Changeover wire labeled O to the O/B terminal. Valve 1 - Changeover Valve in Heating -Use this setting if you connected a wire labeled B to the O/B terminal. M22228 31 69-1725-1 Step 11. Configure Installer Setup (Cont) 16. 17. 18. If you do not have a number 0240 on the left side of your display, go to the next page. If you have a number 0240 on the left side of your display, press the Up or Down arrow to select your setting for Installer Setup Number 0240. After you select your setting, press the Up arrow key to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0240 Installer Setup Name Heating Cycle Rate (Select Your Setting) Settings 5 - Gas or Oil Furnace (less than 90% efficient). 9 - Electric Furnace. 3 - Gas or Oil Hot Water, Gas 90%+ High-Efficiency Furnace. 1 - Gas or Oil Steam, Gas or Oil Gravity. M22342 69-1725-1 32 Step 11. Configure Installer Setup (Cont) 19. 20. Press the Up or Down arrow to select your setting for Installer Setup Number 0320. After you select your setting, press the Up arrow to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0320 Installer Setup Name (Select Your Setting) Settings Temperature 0 - Fahrenheit Temperature Display. Indication 1 - Celsius Temperature Display. Scale M22218 33 69-1725-1 Step 11. Configure Installer Setup (Cont) 21. 22. Press the Up or Down arrow to select your setting for Installer Setup Number 0330. After you select your setting, press the Up arrow to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0330 Installer Setup Name Daylight Savings (Select Your Setting) Settings 0 - Daylight Savings is Off -- clock will not adjust for Daylight Savings Time. 1 - Daylight Savings is On -- clock will automatically adjust for Daylight Savings Time. M22219 69-1725-1 34 Step 11. Configure Installer Setup (Cont) 23. 24. Press the Up or Down arrow to select your setting for Installer Setup Number 0500. After you select your setting, press the Up arrow to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP Installer Setup Number 0500 Installer Setup Name Furnace Filter Change Reminder (Select Your Setting) Settings 0 - Furnace Filter change reminder is Off 1 - Approximately 1 month -- based on 10 days of fan run time. 2 - Approximately 3 months -- based on 30 days of fan run time. 3 - Approximately 6 months -- based on 60 days of fan run time. 4 - Approximately 9 months -- based on 90 days of fan run time. 5 - Approximately 1 year -- based on 120 days of fan run time. 6 - Approximately 3 years -- based on 365 days of fan run time. M22220 35 69-1725-1 Step 11. Configure Installer Setup (Cont) 25. 26. Press the Up or Down arrow to select your setting for Installer Setup Number 0530. After you select your setting, press the Up arrow to go to the next Installer Setup Number. UP ARROW SETTING INSTALLER SETUP NUMBER UP ARROW DOWN ARROW DONE PRESS TO EXIT INSTALLER SETUP