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69-1716

Step 4. Follow Special Instructions

1.

If you have C and/or C1 wire(s) connected to your 

old thermostat, do not connect them to your new 

thermostat.

2.

Disconnect the C and/or C1 wire(s). Make sure 

they do not touch each other or any other wires. 

3.

Wrap the bare end of each C and/or C1 wire(s) 

with electrical tape. 

Y

G

C

R

W

OLD THERMOSTAT

WIRE HOLE

M22037

DO NOT CONNECT TO NEW THERMOSTAT

WIRE 

SCREW 
TERMINAL

LETTER
DESIGNATION

Summary of Contents for RTH5100B

Page 1: ...n programmable Thermostat The RTH5100B Thermostat provides electronic control of 24 Vac single stage 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 START HERE ...

Page 2: ...ve 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 ...

Page 3: ...neywell Customer Care at 1 800 468 1502 before returning the thermostat to the store CoolOn Setting Cool Inside Fan Auto Cool System P R E S S OPERATING INSTRUCTIONS INSTA ATION CAUTION les les www X2 Y WALLPLATE THERMOSTAT M22033 MOUNTING SCREWS 2 AND WALL ANCHORS 2 OPERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS CAUTION CARD WIRE LABELS ...

Page 4: ...eck 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 for plaster Level optional Hammer Pencil Electrical tape ...

Page 5: ...e 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 Step 3 Remove Old Thermostat M22034 Y G RC R W OLD THERMOSTAT RED WHITE YELLOW ORANGE GREEN DO NOT WIRE NEW THERMOSTAT BASED ON WIRE COLOR ...

Page 6: ...llplate Do not remove the wires MERCURY NOTICE 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 Y G C R W OLD THERMOSTAT 18 2 25 3 9 7 5 4 L O NGER THERMOSTAT COVER W...

Page 7: ...not connect them to your new thermostat 2 Disconnect the C and or C1 wire s Make sure they do not touch each other or any other wires 3 Wrap the bare end of each C and or C1 wire s with electrical tape Y G C R W OLD THERMOSTAT WIRE HOLE M22037 DO NOT CONNECT TO NEW THERMOSTAT WIRE SCREW TERMINAL LETTER DESIGNATION ...

Page 8: ...o 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 Y1 G W2 Y2 R W1 OLD THERMOSTAT WIRE HOLE M22038 SIX WIRES CONNECTED WIRE SCREW TERMINAL LETTER DESIGNATION ...

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

Page 10: ... the wires to fall into the wall opening after the wires are disconnected 2 Remove any remaining parts of the old thermostat from the wall 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 Y G RC R OLD THERMOSTAT WIRE HOLE M22039 WIRE SCREW TERMINAL LETTER DESIGNATION WIRE LABEL W W G Y R R C ...

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

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

Page 13: ...l 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 M22044 MARK MOUNTING HOLES 2 WALLPLATE PLACE LEVEL ON TABS G W NOT USED Y R RC O B LEVEL ...

Page 14: ...wall or 7 32 in holes for plaster 5 Tap the wall anchors into the drilled holes until even with the wall surface 6 Position the wallplate over the wall anchors 7 Insert the mounting screws into the wall anchors Check leveling if desired and tighten the mounting screws M22046 DRILLED HOLES 2 WALL ANCHORS 2 MOUNTING SCREWS 2 WALLPLATE G W NOT USED Y R RC O B ...

Page 15: ...e 2 If wires are to be connected to both Rc and R loosen the Rc and R screw terminals and remove the metal jumper 3 If only one of the terminals Rc or R is to be connected leave metal jumper in place M22180 G W O B Y R RC WALLPLATE METAL JUMPER G O B W Y R RC SCREW TERMINALS TERMINAL BLOCK LETTER DESIGNATIONS NOT USED ...

Page 16: ...the terminal block that match the letter designations Tighten the screw terminals 5 If any of the labeled wires do not match the letter designations see next page for wire connections G O B W Y R M22176 RC G W O B Y R RC WALLPLATE SCREW TERMINALS TERMINAL BLOCK INSERT WIRE IN HOLE LABELED WIRES WIRE HOLE LETTER DESIGNATIONS NOT USED R C R Y W G ...

Page 17: ...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 G O B W NOT USED Y R RC or R New Thermostat Possible letter designations on the labeled wires M22055 Do Not Connect RC or RH 4 V R or Y1 M Y or W1 H O B W or F G or X B C 1 2 2 3 4 1 ...

Page 18: ...n the new thermostat 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 Do not connect both O and B when wiring to a heat pump Connect O to O B W Wrap the bare end of the B wire with electrical tape and do not use Transformer common Wrap the bare end of the w...

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

Page 20: ...rked on the battery holder 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 BACK OF THERMOSTAT M22056 BATTERY HOLDER BATTERIES ...

Page 21: ...the thermostat straight onto the wallplate until it snaps into place 3 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 G Y R RC M22057 O B W NOT USED TABS SLOTS ON BACK OF THERMOSTAT TABS WALLPLATE ...

Page 22: ...tion to set up your thermostat 2 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 3 Release the buttons when the display on your thermostat matches the display below ReplaceBatt CoolOn Service Needed Fan Auto Cool System M22058 ReplaceBatt Service Needed Done Next M22121 ...

Page 23: ...ce Needed Done Next M22122 SETTING INSTALLER SETUP NUMBER 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 Gas oil or electric heating without central air conditioning Gas oil or electric heating without central air conditioning Use this setting if you could turn the fan on and off with a fan swit...

Page 24: ...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 ReplaceBatt Service Needed Done Next M22060 SETTING INSTALLER SETUP NUMBER 2 Heat Pump Change over Valve Use this setting if you connected a wire labeled O to O B W terminal Use this setting if you connected a wire labeled B to O B W terminal DOWN BUT...

Page 25: ... 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 ReplaceBatt Service Needed Done Next M22061 SETTING INSTALLER SETUP NUMBER 3 Fan Control in Heating Heating system controls fan in a call for heat Thermostat controls fan in a call for heat DOWN BUTTON NEXT BUTTON UP B...

Page 26: ...er 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 ReplaceBatt Service Needed Done Next M22062 SETTING INSTALLER SETUP NUMBER 5 Heating Cycle Rate DOWN BUTTON NEXT BUTTON UP BUTTON ...

Page 27: ...d 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 Done Next M22063 SETTING INSTALLER SETUP NUMBER Installer Setup Number Installer Setup Name Select Your Setting Settings 14 Tempera ture Display 0 Fahrenheit Temperature Display 1 Celsius Temperature Displa...

Page 28: ...well 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 M22178 xxxxxxxx xxxxxx THERMOSTAT BATTERY HOLDER MODEL NUMBER DATE CODE ...

Page 29: ...of the malfunction and mail it postage prepaid to the following address Honeywell Return Goods Dock 4 MN10 3860 1885 Douglas Dr N Golden Valley MN 55422 This warranty does not cover removal or reinstallation costs This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer Honeywe...

Page 30: ...me states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state If you have any questions concerning this warranty please write Honeywell Customer Relations 1985 Douglas Dr Golden Valley MN 55422 or call 1 800 468 1502 In Canada write Reta...

Page 31: ...31 69 1716 ...

Page 32: ... www honeywell com yourhome Automation and Control Solutions Honeywell International Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 4Z9 ...

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