Get support for Honeywell RTH5100B

Honeywell RTH5100B Support Question

Honeywell RTH5100B Support Question

Find answers below for this question about Honeywell RTH5100B.
Need a Honeywell RTH5100B manual? We have 1 online manual for this item!
Question posted by virginiahesser02 on October 16th, 2013

What Is The Common Wire C

The person who posted this question about this Honeywell product did not include a detailed explanation. Please use the "Request More Information" button to the right if more details would help you to answer this question.

Current Answers

There are currently no answers that have been posted for this question.
Be the first to post an answer!

Remember that you can earn up to 1,100 points for every answer you submit. The better the quality of your answer, the better chance it has to be accepted.

Related Honeywell RTH5100B Manual Pages

Owner's Manual - Page 1

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 ...
Owner's Manual - Page 2

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 20 Attach New Thermostat to Wallplate 21 Configure Installer Setup 22 Customer Assistance 28 Limited One-Year Warranty 29 69-1716 2
Owner's Manual - Page 3

Prepare for Installation 1. Check that the following items are included: Inside SetCtinogol Fan Auto SysteCmoolOn Cool PRESS WALLPLATE THERMOSTAT MOUNTING SCREWS (2) AND WALL ANCHORS (2) OPERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS WIRE LABELS OPERATING INSTRUCTIONS CAUTION CARD INSTA ATION CAUTION les X2 Y www M22033 If any of the items shown above are missing, call Honeywell ...
Owner's Manual - Page 5

... Y W RED G GREEN RC R ORANGE ! Remove Old Thermostat 5 69-1716 Follow Important Instructions 1. Do not connect the wires to the new thermostat based on wire color because damage can occur to your old thermostat. These Installation Instructions explain later how to use the enclosed wire labels to correctly mark the wires connected to the heating and/or cooling...
Owner's Manual - Page 6

...or fuse/circuit breaker panel. 2. Do not remove the wires. Contact your old thermostat in a sealed tube. 69-1716 6 Remove the cover from the wall or wallplate. Remove the old thermostat from the old thermostat. 3. Step 3. Remove Old Thermostat 1. Y G C OLD THERMOSTAT WALLPLATE W THERMOSTAT R COVER .2.18 .9 .7 .5 L O .25 N G E R .4 .3 M22036 MERCURY NOTICE If...
Owner's Manual - Page 7

... they do not connect them to your old thermostat, do not touch each C and/or C1 wire(s) with electrical tape. OLD THERMOSTAT Y G C W R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE DO NOT CONNECT TO NEW THERMOSTAT M22037 7 69-1716 If you have C and/or C1 wire(s) connected to your new thermostat. 2. Wrap the bare end of each other or...
Owner's Manual - Page 8

... or call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to your old thermostat (not counting the C or C1 wires), do not continue the installation. Follow Special Instructions (Cont) 4. OLD THERMOSTAT Y1 G W2 Y2 W1 R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE SIX WIRES CONNECTED M22038 69-1716 8 Most installations have purchased the wrong...
Owner's Manual - Page 9

...-1716 Step 4. Wrap the end of the wires that are not connected with electrical tape. DO NOT CONNECT TO NEW THERMOSTAT M22040 Step 5. OLD THERMOSTAT Y G RC W R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE WIRES NOT CONNECTED - Follow Special Instructions (Cont) 5. If you find any wires not connected to your old thermostat, do not connect them to your new...
Owner's Manual - Page 10

... the letter designation. As you disconnect each wire, use the enclosed wire labels to your new thermostat based on the color of the old thermostat from the wall. Label Old Thermostat Wires 1. OLD THERMOSTAT W Y RC G Y G RC W R R WIRE LABEL LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE M22039 When connecting the wires to the new thermostat, refer to fall into the wall opening...
Owner's Manual - Page 11

THERMOSTAT WALLPLATE WIRE HOLE M22042 11 69-1716 Separate the wallplate from the thermostat as shown. Mount New Wallplate to Wall 1. Step 6.
Owner's Manual - Page 12

WALL OPENING WALLPLATE WIRE HOLE RC R Y NOT USED (O/B) W G LABELED WIRES 69-1716 12 M22043 Pass the labeled wires through the wire hole on the wallplate. Step 6. Mount New Wallplate to Wall (Cont) 2.
Owner's Manual - Page 15

If only one of the terminals, Rc or R, is to be connected to be connected, leave metal jumper in place. Connect Wires to the letter designations on the wallplate. 2. Match the labeled wires to New Wallplate 1. METAL JUMPER TERMINAL BLOCK SCREW TERMINALS LETTER DESIGNATIONS RC R Y NOT USED O/B W G WALLPLATE RC R Y W/O/B G M22180 15 69-1716...
Owner's Manual - Page 16

... terminal block that match the letter designations. LABELED WIRES TERMINAL BLOCK SCREW TERMINALS LETTER DESIGNATIONS RC R Y NOT USED O/B W G GW Y R RC WALLPLATE RC R Y W/O/B G WIRE HOLE INSERT WIRE IN HOLE M22176 69-1716 16 Insert the labeled wires into the holes on the right side of the labeled wires do not match the letter designations, see next...
Owner's Manual - Page 17

... RH, 4, V R Y or Y1, M Y NOT USED O/B W 3 W or W1, H, O, B G or F G Do Not Connect C or X, B 4 M22055 Do not connect more than one wire to each terminal. New Possible letter designations Thermostat on your old and new thermostats. Be sure to New Wallplate (Cont) 6. Step 7. These numbered notes appear on the next page. 17 69-1716 Connect...
Owner's Manual - Page 18

... and the old RH to a heat pump. Connect Wires to New Wallplate (Cont) NOTES 1 If wires will be connected to both O and B when wiring to the new R. 3 Do not connect both RC and R on the new thermostat, remove metal jumper between RC and R on the new thermostat. 2 If wires were connected to O/B W. Wrap the bare end...
Owner's Manual - Page 19

Keep wires in the shaded area. Step 7. WALLPLATE RC R Y NOT USED (O/B) W G WIRE WALL OPENING SHADED AREA M22054 19 69-1716 Connect Wires to New Wallplate (Cont) 7. Push excess wire back into the wall opening.
Owner's Manual - Page 21

... the heating and/or cooling system or fuse/circuit breaker panel. Attach New Thermostat to the wallplate, push the excess wire back into place. 3. Turn on the back of the thermostat. Align the four tabs on the wallplate with mounting the thermostat to Wallplate 1. Step 9. WALLPLATE TABS RC R Y NOT USED O/B W G TABS SLOTS ON BACK...
Owner's Manual - Page 22

...Batt Service Needed Done Next 69-1716 M22121 22 Release the buttons when the display on your thermostat. 2. Configure Installer Setup 1. Enter the Installer Setup Menu by pressing and holding the Up and...screen changes. Use the Installer Setup Menu to match your new thermostat to set up your thermostat matches the display below. Replace Batt Service Needed Cool On Fan System Auto Cool ...
Owner's Manual - Page 23

... or electric heating without central air conditioning. (Use this setting if you select your setting, press the Next button to go to select your old thermostat.) M22122 23 69-1716
Owner's Manual - Page 24

... Done Next UP BUTTON DOWN BUTTON NEXT BUTTON 2 69-1716 Heat Pump Changeover Valve Use this setting if you connected a wire labeled O to O/B W terminal. M22060 24 Use this setting if you connected a wire labeled B to O/B W terminal. If you do not have a number 2 on the left side of your display, go the next...

Similar Questions

Common Wire On Honeywell T834 Thermostat
I'm trying to connect this new thermostat (Honeywell T834) on my AC unit (cooling only) but I dont h...
(Posted by melbltz 2 years ago)
Power For The Rth5100b
How Is Power Provided For The Rth5100b Thermostat, If Only The Hot Wire From The 24vac Transformer I...
(Posted by JANROGHAIG 10 years ago)
Ask a New Question
Use the box below to post a new question about this Honeywell product .
Points & Prizes
  • You can earn points for nearly everything you do on HelpOwl.com
  • You can trade in those points for gift cards at leading retailers such as Amazon.com and Walmart
  • It's that simple!
See How it Works
Create a Free Account

Honeywell Manuals

Find free Honeywell RTH5100B manuals and user guides available at ManualOwl.com. Try out our unique manual viewer allowing you to interact with manuals from directly within your browser!

Honeywell Reviews

View thousands of Honeywell user reviews and customer ratings available at ReviewOwl.com.

Contact Information

Complete Honeywell customer service contact information including steps to reach representatives, hours of operation, customer support links and more from ContactHelp.com.

Scoreboard Ratings

See detailed Honeywell customer service rankings, employee comments and much more from our sister site.

Honeywell Recalls

Find comprehensive Honeywell recall information updated hourly on RecallOwl.com.