RTH5100B Non-programmable Thermostat INSTALLATION INSTRUCTIONS The RTH5100B Thermostat provides electronic control of 24 Vac singlestage heating and cooling systems or 750 mV heating systems. START HERE 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. Registered Trademark © 2004 Honeywell International Inc.
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 ..................................
Step 1. Prepare for Installation 1. Check that the following items are included: P Insid R E S S WALLPLATE e Cool Settin g THERMOSTAT Fan Auto Syst Cool On em Cool MOUNTING SCREWS (2) AND WALL ANCHORS (2) OPERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS WIRE LABELS CAUTION CARD OPERATING INSTRUCTIONS INSTA ATION CAUTION les X2 Y www M22033 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.
Step 1. Prepare for Installation (Cont) 2. Check that you have everything required for the installation: • Two AAA alkaline batteries • No. 2 Phillips screwdriver and standard pocket screwdriver • Drill • Drill bit— use 3/16 in. for drywall; use 7/32 in.
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 W Y RED G GREEN ! DO NOT WIRE NEW THERMOSTAT BASED ON WIRE COLOR. R RC ORANGE M22034 Step 3.
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 W Y THERMOSTAT G COVER R C L .18 .2 .9 .7 .5 O .25 N G E R .4 .3 M22036 MERCURY NOTICE If you are replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the trash.
Step 4. Follow Special Instructions 1. 2. 3. If you have C and/or C1 wire(s) connected to your old thermostat, do not connect them to your new thermostat. Disconnect the C and/or C1 wire(s). Make sure they do not touch each other or any other wires. Wrap the bare end of each C and/or C1 wire(s) with electrical tape.
Step 4. Follow Special Instructions (Cont) 4. Most installations have two to five wires connected to the old thermostat. If six or more wires are connected to your old thermostat (not counting the C or C1 wires), do not continue the installation. You may have purchased the wrong thermostat. Visit www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to the store.
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 LETTER DESIGNATION W Y SCREW TERMINAL WIRE G WIRE HOLE R WIRES NOT CONNECTED – DO NOT CONNECT TO NEW THERMOSTAT M22040 RC Step 5.
Step 5. Label Old Thermostat Wires 1. 2. 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 parts of the old thermostat from the wall.
Step 6. Mount New Wallplate to Wall 1. Separate the wallplate from the thermostat as shown.
Step 6. Mount New Wallplate to Wall (Cont) 2. Pass the labeled wires through the wire hole on the wallplate.
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.
Step 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. holes for drywall or 7/32 in. holes for plaster. Tap the wall anchors into the drilled holes until even with the wall surface. 5. DRILLED HOLES (2) WALL ANCHORS (2) RC R Y NOT USED (O/B) W G WALLPLATE MOUNTING SCREWS (2) 6. 7. 69-1716 M22046 Position the wallplate over the wall anchors. Insert the mounting screws into the wall anchors.
Step 7. Connect Wires to New Wallplate 1. 2. 3. Match the labeled wires to the letter designations on the wallplate. If wires are to be connected to both Rc and R, loosen the Rc and R screw terminals and remove the metal jumper. If only one of the terminals, Rc or R, is to be connected, leave metal jumper in place.
Step 7. Connect Wires to New Wallplate (Cont) 4. Loosen the screw terminals. Insert the labeled wires into the holes on the right 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. 5.
Step 7. Connect Wires to New Wallplate (Cont) 6. Compare letter designations on your old and new thermostats. New Possible letter designations Thermostat on the labeled wires 2 RC or R 1 RC 2 R or RH, 4, V 1 R Y or Y1, M Y NOT USED 3 W or W1, H, O, B O/B W G or F G 4 C or X, B Do Not Connect M22055 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.
Step 7. Connect Wires to New Wallplate (Cont) NOTES 1 If wires will be connected to both RC and R on the new thermostat, remove metal jumper between RC and R. Leave metal jumper 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 between RC and R on the new thermostat. Connect the old R to the new RC and the old RH to the new R.
Step 7. Connect Wires to New Wallplate (Cont) 7. Push excess wire back into the wall opening. Keep wires in the shaded area.
Step 8. Install Batteries 1. Install two fresh AAA alkaline batteries on the back of the thermostat as marked on the battery holder. BACK OF THERMOSTAT BATTERY HOLDER BATTERIES M22056 After the thermostat is mounted on the wallplate, the thermostat does not require removal from the wallplate to replace the batteries. Refer to the enclosed Operating Instructions (69-1722) for more information on the removable battery holder.
Step 9. Attach New Thermostat to Wallplate 1. Align the four tabs on the wallplate with the four slots on the back of the thermostat. WALLPLATE TABS RC SLOTS ON BACK OF THERMOSTAT R Y NOT USED O/B W G TABS M22057 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.
Step 10. 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. Enter the Installer Setup Menu by pressing and holding the Up and Fan buttons at the same time, for approximately five seconds, until the screen changes. Replace Batt Service Needed Fan Auto CoolOn System Cool M22058 3. Release the buttons when the display on your thermostat matches the display below.
10. Configure Installer Setup (Cont) 4. Press the Up or Down button to select your setting for Installer Setup Number 1 in the table below. 5. After you select your setting, press the Next button to go to the next Installer Setup Number. SETTING INSTALLER SETUP NUMBER Replace Batt UP BUTTON Service Needed Done DOWN BUTTON Next NEXT BUTTON 1 Heating and/or Cooling System Type Gas, oil or electric heating with central air conditioning. The compressor outside runs in both heating and cooling.
Configure Installer Setup (Cont) 6. If you do not have a number 2 on the left side of your display, go to the next page. 7. If you have a number 2 on the left side of your display, press the Up or Down button to select your setting for Installer Setup Number 2 in table below. 8. After you select your setting, press the Next button to go the next Installer Setup Number.
Step 10. Configure Installer Setup (Cont) 9. If you do not have a number 3 on the left side of your display, go to the next page. 10. If you have a number 3 on the left side of your display, press the Up or Down button to select your setting for Installer Setup Number 3 in table below. 11. After you select your setting, press the Next button to go to the next Installer Setup Number.
Step 10. Configure Installer Setup (Cont) 12. If you do not have a number 5 on the left side of your display, go to the next page. 13. If you have a number 5 on the left side of your display, press the Up or Down button to select your setting for Installer Setup Number 5 in table below. 14. After you select your setting, press the Next button to go to the next Installer Setup Number.
Step 10. Configure Installer Setup (Cont) 15. Press the Up or Down button to select your setting for Installer Setup Number 14 in table below. 16. After you select your setting, press the Done button to exit the Installer Setup and save your settings. 17. Congratulations! The installation of the thermostat is complete. Refer to the enclosed Operating Instructions (69-1722) for information on how to operate your new thermostat.
Customer Assistance For assistance with your Honeywell product please visit www.honeywell.com/yourhome or call Honeywell Customer Care toll free at 1-800-468-1502. Before calling, please have the thermostat model number and date code available.
Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
Limited One-Year Warranty (Cont) THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
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Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 69-1716 G.H. 5-04 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 www.honeywell.
