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Question posted by walt99 on October 28th, 2014

Is It Possible To Change Thermostat Model Rth5100b From Farenheit To Celsius

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Answer #1: Posted by cooltechagent on November 1st, 2014 5:11 AM

This answer was accepted by the poster of the original question.

cooltechagent

Member since:
January 6th, 2014

Points: 1,072,690

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Press the s or t button to select Fahrenheit or Celsius

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CoolAgent

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 ...

Owner's Manual - Page 5

... ON WIRE COLOR. Follow Important Instructions 1. M22034 Step 3. 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...

Owner's Manual - Page 6

..., do not place your local waste management authority for instructions regarding recycling and the proper disposal of an old thermostat containing mercury in the trash. Do not remove the wires. Contact your old thermostat in a sealed tube. 69-1716 6 Remove the cover from the wall or wallplate. Turn off power at the...

Owner's Manual - Page 7

... the C and/or C1 wire(s). Make sure they do not connect them to your old thermostat, do not touch each C and/or C1 wire(s) with electrical tape. Wrap the bare end of each other or any other wires. 3. OLD THERMOSTAT Y G C W R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE DO NOT CONNECT TO NEW...

Owner's Manual - Page 8

....honeywell.com/yourhome 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. Most installations have purchased the wrong thermostat. OLD THERMOSTAT Y1 G W2 Y2 W1 R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE SIX WIRES CONNECTED...

Owner's Manual - Page 9

... any wires not connected to your old thermostat, do not connect them to your new thermostat. 6. Wrap the end of the wires that are not connected with electrical tape. DO NOT CONNECT TO NEW THERMOSTAT M22040 Step 5. Label and Disconnect Wires from Old Thermostat 9 69-1716 OLD THERMOSTAT Y G RC W R LETTER DESIGNATION SCREW TERMINAL WIRE WIRE...

Owner's Manual - Page 10

...LABEL LETTER DESIGNATION SCREW TERMINAL WIRE WIRE HOLE M22039 When connecting the wires to the new thermostat, refer to fall into the wall opening after the wires are disconnected. 2. Do not... wire labels to your new thermostat based on the color of the old thermostat from the wall. Remove any remaining parts of the wire. 69-1716 10 Label Old Thermostat Wires 1. Do not connect ...

Owner's Manual - Page 11

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

Owner's Manual - Page 17

... referenced in the numbered triangles above. These numbered notes appear on your old and new thermostats. Step 7. Compare letter designations on the next page. 17 69-1716 Be sure to New Wallplate (Cont) 6. New Possible letter designations Thermostat on the labeled wires 1 RC 2 RC or R 2 1 R or RH, 4, V R Y or Y1, M Y NOT USED O/B W 3 W or W1...

Owner's Manual - Page 18

... RC and R. M22050 69-1716 18 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 O/B W. Wrap the bare end of the B wire with electrical tape and do not use . Wrap the bare end of the...

Owner's Manual - Page 20

Install two fresh AAA alkaline batteries on the back of the thermostat as marked on the wallplate, the thermostat does not require removal from the wallplate to the enclosed Operating Instructions (69-1722) for more information on the removable battery holder. 20 Step 8. BACK OF THERMOSTAT BATTERY HOLDER BATTERIES M22056 69-1716 After the...

Owner's Manual - Page 21

... onto the wallplate until it snaps into the wall opening. 21 69-1716 Turn on the back of the thermostat. Align the four tabs on the wallplate with mounting the thermostat to Wallplate 1. If the wires interfere with the four slots on the power at the heating and/or cooling system or...

Owner's Manual - Page 22

...section to your heating and/or cooling system. Release the buttons when the display on your thermostat. 2. Step 10. Enter the Installer Setup Menu by pressing and holding the Up and...time, for approximately five seconds, until the screen changes. Use the Installer Setup Menu to match your new thermostat to set up your thermostat matches the display below. Configure Installer Setup 1. ...

Owner's Manual - Page 23

After you could turn the fan on your old thermostat.) M22122 23 69-1716 Gas, oil or electric heating without central air conditioning. (Use this setting if you select your setting for Installer Setup Number 1 ...

Owner's Manual - Page 25

... a number 3 on the left side of your display, press the Up or Down button to select your display, go to the next page. 10. Heating Thermostat controls fan in a call for Installer Setup Number 3 in a call for heat.

Owner's Manual - Page 27

... enclosed Operating Instructions (69-1722) for Installer Setup Number 14 in table below. 16. The installation of the thermostat is complete. Configure Installer Setup (Cont) 15. After you select your setting, press the Done button to operate... Setup Name Temperature Display (Select Your Setting) Settings 0-Fahrenheit Temperature Display 1-Celsius Temperature Display M22063 27 69-1716

Owner's Manual - Page 28

Before calling, please have the thermostat model number and date code available. MODEL NUMBER xxxxxxxx DATE CODE xxxxxx THERMOSTAT BATTERY HOLDER 69-1716 M22178 28 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.