background image

6

69-1385

Step 2. Remove Old Thermostat

Test to be sure your heating and cooling 
systems are working properly. If either does 
not work, contact your local heating/air 
conditioning dealer. To avoid compressor 
damage, do not operate the cooling system 
when outdoor temperature is below 50°F 
(10°C).

Turn off power to the system at the furnace, 
or at the fuse/circuit breaker panel.

Carefully unpack your new thermostat and 
mounting plate, saving package of screws, 
instructions and receipt.

Remove cover from old thermostat. If it does 
not snap off when pulled firmly from the 
bottom, check for a screw used to lock on 
the cover.

Loosen screws holding thermostat to 
subbase, wallplate or wall, and lift away.

Disconnect wires from old thermostat or 
subbase. As you disconnect each wire, 
attach one of the enclosed labels to each old 
terminal designation. If there are only two 
wires, they do not need labeling. If there is 
an extra wire that is not connected to your 
old thermostat, you also do not connect it to 
your new thermostat. Keep the wires from 
falling back into the wall by wrapping them 
around a pencil as shown.

WIRES THROUGH
WALL OPENING

M5136

Summary of Contents for CT2095

Page 1: ...lace Bar Code Here 69 1385 OWNER S GUIDE Honeywell 20 Programmable Thermostat Weekday Weekend 5 day 2 day Programmable Heat and or Cool Low Voltage 20 to 30 Vac Thermostat and Mounting Plate Model CT2095 ...

Page 2: ...mostat to Honeywell Consumer Services at 1 800 468 1502 Monday Friday 7 00 a m 5 30 p m Central time MERCURY NOTICE If this thermostat is replacing a thermo stat that contains mercury in a sealed tube do not place your old thermostat in the trash Dispose of properly Contact your local waste management authority for instructions regarding recy cling and the proper disposal of your old thermostat If...

Page 3: ...t Fan Operation Switch As Required 19 Step 6 Adjust System On Time F C As Required 19 Step 7 Mount Thermostat Mounting Plate 21 Step 8 Wire Thermostat Terminals 23 Step 9 Mount Thermostat 27 Step 10 Check Thermostat Operation After Programming and Installing 28 Step 11 Set Fan and System Switches 30 Troubleshooting Guide 31 Limited One Year Warranty 35 ...

Page 4: ...Isolating relay required for 3 wire thermostats for zone valves Not compatible with 2 wire White Rodgers no 1361 valves b Compatible with hot water baseboard systems Does not work efficiently on steam or gravity systems Table 1 Compatibility Information System Type Compatible with CT2095 Gas Standing Pilot Yes Gas Electronic Ignition Yes Gas Fired Boilers Yesa b Gas Millivolt No Oil Fired Boilers ...

Page 5: ... AA alkaline batteries we recommend Energizer batteries M13544 CROSS RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED TO DRILL HOLES IN WALL WIRE CUTTER STRIPPER OR SHARP KNIFE IF NEEDED TO STRIP WIRES LEVEL IF NEEDED TO LEVEL THERMOSTAT FOR APPEARANCE ...

Page 6: ... and receipt Remove cover from old thermostat If it does not snap off when pulled firmly from the bottom check for a screw used to lock on the cover Loosen screws holding thermostat to subbase wallplate or wall and lift away Disconnect wires from old thermostat or subbase As you disconnect each wire attach one of the enclosed labels to each old terminal designation If there are only two wires they...

Page 7: ... Six or more wires If there are six or more wires excluding clock wires attached to terminals you probably have a variation of a heat pump or multistage system This thermostat is not compatible with those systems so return the product to the retailer If you want information about the programmable thermostats that work with your system call Honeywell Consumer Services at 1 800 468 1502 Three thermo...

Page 8: ...line batteries non alkaline batteries do not last as long and can leak causing damage to the thermostat or the wall surface We recommend Energizer batteries Open the top cover of thermostat to access control panel and battery compartment Make sure the thermostat is set to the Off position Use a coin to remove the battery cover M12492 REMOVING BATTERY DOOR BATTERY DOOR COVER ...

Page 9: ...s soon as possible after the indicator starts flashing If you do not replace the batteries sometime during the flashing bAt Lo the indicator eventually stops flashing bAt Lo then stays on without flashing indicating the thermostat and heating cooling system have stopped working and the batteries are almost completely dead After the batteries are completely dead the bAtLo indication disappears leav...

Page 10: ...ries are dead or incorrectly installed and you must reprogram See Step 4 IMPORTANT Although the thermostat has a low bat tery indicator replace the batteries once a year to prevent the thermostat and heating cooling system from shut ting down due to lack of battery power As a precaution when leaving home for longer than a month change bat teries before you leave to prevent the system from shutting...

Page 11: ... period you want the house at a comfortable temperature when you get up and while you get ready for work or school This is a higher temperature during heating season and a lower temperature dur ing cooling season LEAVE is the time period you can set for an energy saving temperature while you are away at work or school This is a lower tem perature during heating season and a higher temperature duri...

Page 12: ... and temperature program for all periods if your schedule does not require it For example a house that is occupied during week days would require programs only for WAKE and SLEEP If no program is entered for the weekends the thermostat operates on the weekday SLEEP program all weekend Before programming remove the clear plastic overlay covering the display When pressing the keys use the ball of yo...

Page 13: ...han 45 F 7 C b If you decide not to enter weekend programs the thermostat operates on the weekday SLEEP pro gram all weekend Table 2 Personal Programming Chart for Heating Days of Week Heating Program Start Time Heating Temperaturea Weekdays WAKE LEAVE RETURN SLEEP Weekendsb WAKE SLEEP ...

Page 14: ...han 45 F 7 C b If you decide not to enter weekend programs the thermostat operates on the weekday SLEEP pro gram all weekend Table 3 Personal Programming Chart for Cooling Days of Week Cooling Program Start Time Cooling Temperaturea Weekdays WAKE LEAVE RETURN SLEEP Weekendsb WAKE SLEEP ...

Page 15: ...ramming procedures for your thermostat Set Current Time Day To set time press and release once press until current shows To set day press and release again press until current day shows then press Heating Program With System switch at Heat press and release once WAKE MON FRI Monday Friday and SET appear on display Use to program WAKE time and to program WAKE temperature for MON FRI Monday Friday R...

Page 16: ...for SAT SUN Saturday Sunday Repeat sequence for SLEEP Press and release to start the program Cooling Program With System switch at Cool follow the same instructions as for the Heating Program After programming adjust the Fan and System switches as desired Press and release to start the program Weekend Time TEMP Run Program Run Program ...

Page 17: ...s on display and cancels itself at the next scheduled change to cancel sooner press Hold a Temperature Indefinitely such as when on vacation Press and HOLD appears on display to cancel press Check Current Temperature Setting Press Check Programs Press repeatedly to see each time and temperature then press TEMP Run Program Hold Temp TEMP Run Program Present Set Weekday Weekend Run Program ...

Page 18: ...as run today since midnight press again for yesterday s usage press again for cumulative press to clear cumulative reading if desired then press Permanently Change a Program Repeat Heating Program or Cooling Program steps as applicable Return to Normal Program or Start Program Press Weekday Weekend Clear Usage Clear Run Program Run Program ...

Page 19: ...adjust the on time accordingly by setting screws A and B on the back of the thermostat Use the heating system table shown in the illustration as a guide The system on time should be optimized according to the type of system to maximize comfort Setting the screw out one turn means turning the screw approximately 360 counterclockwise or about one com plete turn R Rc W Y G B D A C THERMOSTAT BACK M87...

Page 20: ... Furnace setting A leave in B leave in NOTE This thermostat does not have a set ting for steam gravity air cycles would not be long enough for accurate tem perature control IMPORTANT When using a high efficiency furnace such as a 90 percent or greater Aver age Fuel Utilization Efficiency AFUE unit adjust screw A out one turn and leave screw B in The thermostat is set to read the temperature in deg...

Page 21: ...all and drill 3 16 inch holes in wall if drywall as marked For firmer material such as plaster or wood drill 7 32 inch holes Gently tap anchors provided into drilled holes until flush with the wall Reposition mounting plate over holes pulling wires through wiring opening Loosely insert two mounting screws into holes WALL WIRES THROUGH WALL OPENING WALL ANCHORS 2 MOUNTING PLATE MOUNTING SCREWS 2 M1...

Page 22: ...22 69 1385 Level for appearance only thermostat functions properly even when not level Tighten mounting screws LEVEL M1714A ...

Page 23: ...ponding letter on the back of your new thermostat See wiring diagrams Hold the thermostat as shown in illustration to minimize need for wire extenders If wires are still too short use wire connectors purchased locally to extend wires See illustration for guidelines on using wire extenders In 5 wire installations only be sure to remove the factory installed jumper connecting termi nals R and Rc M17...

Page 24: ...re insertion technique Securely tighten terminals Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation M3002A M1712B JUMPER FACTORY INSTALLED REMOVE IF 5 WIRE SYSTEM INSERT STRAIGHT UNDER SCREW HEAD 5 16 in 8 mm STRIP END OF WIRE VISIBLE HERE R R c W Y G ...

Page 25: ...ISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 1 HEATING RELAY OR VALVE COIL JUMPER R Rc W Y G B D A C 4 WIRE HEAT COOL JUMPER INTACT L1 HOT L2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER HEATING RELAY OR VALVE COIL M1710B COOLING CONTACTOR COIL FAN RELAY ...

Page 26: ...EANS AND OVERLOAD PROTECTION AS REQUIRED 1 M1711C L1 HOT L2 COOLING CONTACTOR COIL FAN RELAY HEATING RELAY OR VALVE COIL 1 1 R Rc W Y G B D A C 3 WIRE COOL ONLY JUMPER INTACT L1 HOT L2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER M848A COOLING CONTACTOR COIL FAN RELAY ...

Page 27: ...bottom of thermostat then remove top M13545 PRESS LOWER EDGE OF CASE TO LATCH ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE SWING OPEN COVER TO CHECK OPERATION A B C System Cool Off Heat Fan On Auto LEAVE TU AM Time TEMP Run Program Present Set Weekend Clear Usage Hold Temp Weekday Clock Day ...

Page 28: ...mostat Instead jumper R and W wires at the thermostat Move the System switch to Heat and the Fan switch to Auto Press TEMP key until the set ting is about 10 F 6 C above room temperature Heating should start and the fan should run after a short delay immedi ately if fan operation switch is set to E position Press TEMP key until setting is about 10 F 6 C below room temperature The heating equip men...

Page 29: ...tioner This delay protects the compressor Move the System switch to Cool and the Fan switch to Auto Press TEMP key until setting is about 10 F 6 C below room temperature The cooling equipment and fan should start Press TEMP key until the setting is about 10 F 6 C above room temperature The cooling equipment and fan should stop Move the System switch to Off keep the Fan switch at Auto The system an...

Page 30: ...ce Fan On The fan runs continuously Use for improved air circulation during special occasions or for more efficient electronic air cleaning In a heat only system fan runs continuously only if fan relay is connected to the thermostat Then set the System switch Cool The thermostat controls your air conditioning system Off Both the heating and air conditioning systems are off Heat The thermostat cont...

Page 31: ...re batteries are fresh and installed correctly Temperature display does not go lower than 45 F 7 C or higher than 88 F 31 C during programming You have reached the temperature setting limit The setting range is 45 F to 88 F 7 to 31 C Temperature change occurs at wrong times Check the program times for the questionable period Be sure that AM and PM indications are correct Make sure the current day ...

Page 32: ...in the Off position If temperature setting is higher than the current temperature and the display says HEAT contact Honeywell Consumer Services at 1 800 468 1502 Cooling does not come on Check that the System switch is set to Cool Make sure the cooling setpoint is below the room temperature Check the system fuse or circuit breaker and replace or reset if necessary Make sure the System switch at th...

Page 33: ...t temperature protection and shut down If air conditioner does not come on after the ten minutes and the display says COOL contact Honeywell Consumer Services at 1 800 468 1502 If two or four wire installation verify R Rc jumper is installed The house is too warm or too cool Press Present Set key to check the current temperature setting If desired change the temperature setting See Cooling Program...

Page 34: ...t 1 800 468 1502 Monday Friday 7 00 a m 5 30 p m Central time Before you call please have the following information available thermostat model number and date code type of heating cooling system hot water warm air oil gas etc and number of wires connected to the thermostat NOTICE This equipment is a Class B digital apparatus which complies with Canadian Radio Interference Regulations CRC c 1374 ...

Page 35: ...owing address Honeywell Inc Canada Honeywell Limited Honeywell Limitée Return Goods Department Product ServicesON15 FFE 1050 Berkshire Lane 740 Ellesmere Road Plymouth MN 55441 4437 Scarborough Ontario M1P 2V9 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 whil...

Page 36: ... 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 our Customer Assistance Center Honeywell Inc P O Box 524 Minneapolis MN 55440 0524 or call 1 800 468 1502 Monday Friday 7 00 a m to 5 30 p m Central time In Can...

Page 37: ...apolis Cincinnati Kansas City St Louis Columbus New York Philadelphia Seattle Louisville Portland Wash D C San Francisco Dallas Atlanta Los Angeles Approximate percentage of energy cost savings Savings for Once A Day 10 F 5 C decrease Savings for Twice A Day 10 F 5 C decrease Savings for 5 F 3 summer increase TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U S AND CANADA Based on 10 F 5 C ...

Page 38: ...38 69 1385 ...

Page 39: ...39 69 1385 ...

Page 40: ...rol Home and Building Control Honeywell Inc Honeywell Limited Honeywell Limitée Honeywell Plaza 155 Gordon Baker Road P O Box 524 North York Ontario Minneapolis MN 55408 0524 M2H 3N7 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers ...

Reviews: