Comfort t Non-Programmable Owner's Manual
YOU WILL LOVE THIS THERMOSTAT. This Comfortt non−programmable thermostat is an easy to use model that provides the most sought−after features for keeping your home comfortable. And with a slim profile, it is designed to be as smart – and smart−looking – as any of the other electronics in your home. Let this manual show you how easy it is to enjoy the newest experience in home comfort. Designed and Assembled in the U.S.A. NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS BUTTON IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ON−SCREEN INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPERATING THE THERMOSTAT Setting the temperatures for heating and cooling . . . . . . . . . . . . . . . . . . . . . . . . 8 Using the fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS WHAT IF . . . The battery icon is displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 “Aux heat on” is displayed (heat pump systems only) . . . . . . . . . . . . . . . . . . 20 “Em heat” is displayed (heat pump systems only) . . . . . . . . . . . . . . . . . . . . . . 20 There is a power outage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 You get a system error message . . . . . . . . . . . . . . . . . .
BUTTON IDENTIFICATION b c a d 4
BUTTON IDENTIFICATION Selects whether the fan operates continuously (on) or only when needed for heating or cooling (auto) a. FAN b. MODE Selects whether thermostat is set for heating, cooling, emergency heat (heat pump system only), auto (heat and cool as needed), or off c. UP d.
ON−SCREEN INDICATORS 5 4 3 2 1 off Em heat aux heat on fan auto fan on F C 6 7 actual temp cool on2 set at 6 8 9 10
ON−SCREEN INDICATORS 1. Fan mode – on or auto 2. System is in auxiliary (supplemental) mode 3. Current temperature 4. Thermostat mode is either off or using emergency heat 5. Fahrenheit 6. Keypad is locked (no padlock means unlocked) 7. Celsius 8. Battery strength indicator 9. Selected cooling set point; “on” indicates system is in cooling mode 10.
OPERATING THE THERMOSTAT Setting the temperatures for heating and cooling Your thermostat is installed with the heating set at 68° F and the cooling set at 72° F. You can use these or change them so your home is as warm or as cool as you would like it to be. These steps will hold the temperature where you set it. 1. To change the heating temperature, press the mode button on the left until the screen says heat. 2.
OPERATING THE THERMOSTAT Using the fan When the fan is on, it helps distribute air throughout your home for a more even temperature in all spaces. You can set the thermostat so that the fan runs only during your heating and cooling cycles (auto mode) or to run continuously. The thermostat is set at the factory to run automatically as needed. Here’s how to change the setting so it runs continuously. 1. Press the fan button on the left. The display message will change from auto fan to fan on. 2.
OPERATING THE THERMOSTAT Using emergency heat (heat pump systems only) Emergency heat is useful when the automatic auxiliary heat system can’t keep up with demand. (Systems with heat pumps use “auxiliary heat” when it’s too cold outside for the heat pump to heat the house without help. The display indicator for this is aux heat on.) If the heat pump compressor that works with auxiliary heat fails, or if the heat pump isn’t working at all, you can turn on the emergency heat for that extra help.
OPERATING THE THERMOSTAT Installing or replacing the batteries You can install batteries in your thermostat so that if the power goes out, the display will still show the indoor temperature. In some situations, batteries are also the power source. Then, two AA batteries should last about one year. When the batteries have lost about one−third of their power, a battery icon appears on the display. Two−thirds of it will be black. As the batteries get weaker, the icon goes down to one black bar and then none.
OPERATING THE THERMOSTAT 2. Press it down. This will disconnect the thermostat from the top of the wall plate. 3. Remove the thermostat from the wall bracket completely by bringing it slightly toward you and lifting it up and off the lip on the lower edge of the wall bracket. 4. Set the thermostat face down on a flat surface. You will see the batteries in the lower right corner. 5. Remove and discard the old batteries. 6.
OPERATING THE THERMOSTAT 9. With the bottom of the thermostat attached to the bottom of the wall bracket, bring the thermostat back to the wall. Line up the latch at the top of the thermostat with the corresponding lip on the wall bracket. 10. Lightly push the thermostat toward the wall. When the latch and lip are lined up properly, you will hear the thermostat snap into place. 11. Close the door.
OPERATING THE THERMOSTAT Using the thermostat to turn the heating and cooling system off To use the thermostat to turn the heating and cooling system off, press the mode button on the left repeatedly until the display shows off in the upper left. Auto changeover The thermostat uses one of five modes: heat, cool, Em heat (heat pump version only), auto, and off. When the mode selection is auto, the thermostat is in auto changeover mode.
ADVANCED OPTIONS Advanced options display codes chart You can customize a few features of your thermostat. This chart shows which features you can change and the codes associated with them. The codes will be shown on the display when you follow the instructions.
ADVANCED OPTIONS Changing from Fahrenheit to Celsius Your thermostat is preset to display the temperature in degrees Fahrenheit. You can change this to Celsius. 1. Press and hold the mode button for about three seconds. The display will show U1 and the letter F in the center. 2. Press the up or down button on the right to change it from F (Fahrenheit) to C (Celsius). 3. Press the fan button on the left to exit this screen.
ADVANCED OPTIONS Turning on the continuous backlighting The thermostat display lights up for a few seconds after you press any button. This is backlighting. It will go dark after a few seconds. If the thermostat is powered by electricity, it is possible to have a constant low level amount of backlighting until you press any button, which increases the lighting temporarily. Here’s how to turn on the constant backlight when your thermostat is powered by electricity. 1.
ADVANCED OPTIONS Keypad lockout The keypad lockout feature lets you “lock” the thermostat so nobody can change the temperature – or make any other changes – by pressing buttons. Keypad lockout is not activated when the thermostat is installed. Here’s how to activate it. 1. Press and hold the mode button for about three seconds. The display will show U1 and the letter F in the center. 2. Press the mode button until the display shows U3 and Of. 3.
ADVANCED OPTIONS Unlocking the keypad Here’s how to temporarily unlock the keypad. 1. Press and hold the up and down buttons on the right simultaneously for about five seconds. 2. The padlock icon will disappear. This means the keypad is unlocked and can be used. The keypad will revert back to the locked state after you’ve stopped pushing buttons for two minutes.
WHAT IF . . . The battery icon is displayed The battery icon appears on the display only when the battery starts to lose power. Replace it when one−third of the icon is black. If your thermostat is battery powered and you wait until the icon is just a silhouette with no black bars, you will slowly lose thermostat functions until it doesn’t work at all. “Aux heat on” is displayed (heat pump systems only) Aux heat on is auxiliary heat. It applies only to the heat pump version.
WHAT IF . . . There is a power outage If you lose electricity and have batteries installed, the thermostat will continue to display the indoor temperature because it has a battery backup power source. This means that even though your heating and cooling system doesn’t work, you will still be able to monitor your home’s temperature.
COMMON TERMS AND WHERE TO FIND THEM Auto changeover .......................................... page 14 This feature automatically switches your system from heating to cooling – or from cooling to heating – whenever necessary. Auxiliary heat (heat pump systems only) .................. page 10 Most heat pump systems can’t heat a home sufficiently when it gets very cold outside so they use a supplemental heating source called auxiliary heat.
THERMOSTAT LIMITED WARRANTY CARRIER CORPORATION Limited Warranty for Thermostats, User Interfaces, Zoning and Related Accessories FOR WARRANTY SERVICE OR REPAIR: Contact the installer or a Carrier dealer. You may find the installer’s name on the equipment or in your Owner’s Packet. You can also find a Carrier dealer online at www.carrier.com For help, contact: Carrier Corporation, Consumer Relations, P.O.
THERMOSTAT LIMITED WARRANTY OWNER−OCCUPIED, RESIDENTIAL APPLICATIONS This warranty is to the original purchasing owner and is transferable only to the extent and as stated in the Warranty Conditions and below. The warranty period in years, depending on the part and the claimant, is as shown in the chart below.
THERMOSTAT LIMITED WARRANTY WARRANTY CONDITIONS: LEGAL REMEDIES: The owner must notify the Company in writing, by certified or registered letter to Carrier Corporation, Warranty Claims, P.O. Box 4808, Syracuse, New York 13221, of any defect or complaint with the product, stating the defect or complaint and a specific request for repair, replacement, or other correction of the product under warranty, mailed at least thirty (30) days before pursuing any legal rights or remedies. WARRANTY CONDITIONS: 1.
THERMOSTAT LIMITED WARRANTY LIMITATIONS OF WARRANTIES: ALL IMPLIED WARRANTIES AND/OR CONDITIONS (INCLUDING IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE) ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. SOME STATES OR PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY OR CONDITION LASTS, SO THE ABOVE MAY NOT APPLY TO YOU.
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OM−TCNHP−3CA Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice or without incurring obligations.
