Carrier TB-PHP User's Manual
Contents
1. Cooling Operation 1 Press H C button until COOL is displayed 2 Press DOWN button until LCD readout reads 3 F 2 C be low room temperature Press UP and FAN buttons simultan eously to defeat timers Cooling system should begin to op erate immediately Table 1 shows the thermostat outputs for each available stage of heating or cooling It may be useful in checkout or troubleshooting Table 1 Outputs EQUIPMENT THERMOSTAT CONFIGURATION TYPE Ppt eae Seale EM HEAT OPTION 1 CONFIGURATION AC PC AC HP Y G W me a HP PH RVS C HP Y G O B Y G Y G W W HP PH RVS H HP YG Y G O B Y G W O B W WIRING DIAGRAMS Thermostat Furnace Air Conditioner ThermoSial Fan Coil Heat Pump Common Fig 1 A C Thermostat Typical Installation Copyright 2009 Carrier Corp e 7310 W Morris St e Indianapolis IN 46231 Common A06566 Printed in U S A Edition Date 05 09 A06567 Fig 2 HP Thermostat Typical Installation Catalog No TB PAC 7SI Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Replaces TB PAC 6SI TB PAC TB PHP Base Series Programmable Thermostats Turn to the Experts Homeowner s Guide Designed and Assembled in the USA A07107 Base Series Programmable Thermostat SETTING TIME AND DAY At Power Up When power is first applied AC or HP will appear for 52. battery icon appears on the display As the batteries get weaker the icon goes down to one black bar and then none As the icon becomes empty you will begin to lose thermostat functions because the batteries are losing their power When the batteries are completely dead you won t be able to use the thermostat When using batteries for power we recommend you replace them with two AA alkaline batteries They are in a compartment under the lid on top of the thermostat You do not have to remove the thermostat from the wall to replace the batteries Simply open the lid lift out the batteries and replace them like you would any other battery operated device TROUBLESHOOTING What if AUX HEAT appears on the display Heat pump model only If auxiliary heat is on you will see AUX HEAT indicator in the display When it is on this means the system has determined that it s too cold outside for your heat pump to heat the house without help so it s getting help from the electric heaters This happens automatically NOTE This indicator does not mean there is a problem with your system What if E Heat appears on the display If the heat pump is not working properly you can manually turn on the emergency heat for extra help in heating You ll know there s a problem if the house can t seem to get warm when it s cold outside You want to avoid using emergency heat though because it s the most expensive option And of cours
3. electrical service 6 Failure or damage due to floods winds fires lightning accidents corrosive environments rust etc or other conditions beyond the control of Company 7 Parts not supplied or designated by Company or damages resulting from their use 8 Products installed outside the U S A or its territories and Canada 9 Electricity or fuel costs or increases in electricity or fuel costs from any reason whatsoever including additional or unusual use of supplemental electric heat 10 Any cost to replace refill or dispose of refrigerant including the cost of refrigerant 11 ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER Some states or provinces do not allow the exclusion of incidental or consequential damages so the above limitation may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state or province to province 49004DP110 05 09 Copyright 2009 Carrier Corp 7310 W Morris St e Indianapolis IN 46231 Printed in U S A Edition Date 05 09 Catalog No TB PAC 7SI Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Replaces TB PAC 6SI
4. through hole in mounting base Level mounting base against wall for aesthetic value only thermostat need not be level for proper operation and mark A08431 wall through 2 mounting holes 12 Snap thermostat together making sure assembly is secure 5 Drill two 3 16 in Smm mounting holes in wall where 13 Install the batteries marked 14 Turn ON power to unit On power up depending on the thermostat model being used the LCD readout will display either AC for air conditioner model 1 stage heat 1 stage cool or HP for heat pump model 2 stage heat 1 stage cool Step 3 Set Thermostat Configuration Configuration options enable the installer to configure the thermostat for a particular installation These are not presented to the homeowner and therefore must be properly set by the installer Following is a list of the options available an explanation of their function and their factory default settings Not all numbers are used in the Base Series because not all options are available in this series Configuration Options Summary Option 01 Equipment type Option 03 Fahrenheit Centigrade Option 04 Fan G on with W output Option 10 Reversing valve Option 13 Room air temperature offset Option 21 Keypad Lockout Option 26 Minimum Cooling Setpoint Option 27 Maximum Heating Setpoint To Enter The Configuration Mode Press and hold the FAN key for about 10 seconds until the display changes so that only two pairs of
5. 11 C Sets the lowest cooling setpoint available to the user Option 27 Maximum Heating Setpoint Selections 50 to 90 F 10 to 32 C Default is 88 F 31 C Sets the highest heating setpoint available to the user Step 4 Understand Thermostat Operation Temperature Display Thermostat will display room temperature until UP or DOWN button is pressed The words SET TEMP appear when these buttons are pressed and the current setpoint is displayed If no buttons are pressed for 5 sec the display will change back to show room temperature Back lighting Continuous back lighting is not available The backlight will come on for 10 seconds after any button press Without AC power and when the battery is low the backlight will remain off with button presses Battery Indicator A battery indication icon on the display shows nothing half or low no battery condition If the battery is full or operation is from AC power no icon appears Under battery operation if the battery is half full a half full battery icon appears As the battery depletes below half the icon remains at half but the 10 second backlight disappears When the battery is absent or depleted the display goes blank except for an empty battery icon and all outputs are turned off Timeguard Timer A 5 minute timeguard is built into the thermostat immediately upon power up and any time the compressor turns off The compressor will not turn on until the timeguar
6. S 1 To obtain the longer warranty periods as shown in the table under original owner for the original purchaser the product must be properly registered at www carrier com within ninety 90 days of original installation In jurisdictions where warranty terms condi tioned on registration are prohibited by law registration is not required and the longer warranty period shown will be apply 2 Where a product is installed in a newly constructed home the date of installation is the date the homeowner purchased the home from the builder 3 If the date of original installation cannot be verified then the warranty period begins ninety 90 days from the date of product manu facture as indicated by the model and serial number Proof of purchase may be required at time of service 4 The remainder of the first five years of warranty is freely transferable without registration To obtain a transfer of the longer warranty periods as shown in the table under subsequent owner a subsequent owner must register the transfer at www carrier com within 90 days of the change in ownership and payment of a transfer fee Not applicable in all jurisdictions See website for details 5 Product must be installed properly and by a licensed HVAC technician 6 The warranty applies only to products remaining in their original installation location 7 Installation use care and maintenance must be normal and in accordance with instructions contained in the Install
7. TB PAC TB PHP Base Series Programmable Thermostats Turn to the Experts Installation Instructions Designed and Assembled in the USA Ph CE US patents US20060165149 A1 USD578026 SI US6205041 B1 A07107 Base Series Programmable Thermostat NOTE Read the entire instruction manual before starting the installation TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS 20000085 1 INTRODUC TION sper ierte eae ee ose rave ates 1 INSTALLATION CONSIDERATIONS 1 INSTALLATION 24 ceret torte etc ee eer TE ETE ETS 2 Step 1 Thermostat Location 0 00 cece eee 2 Step 2 Install Thermostat ooann nannu 2 Step 3 Set Thermostat Configuration 3 Step 4 Understand Thermostat Operation 3 Step 5 Check Thermostat Operation 4 WIRING DIAGRAMS 0 0 cee eee nes 4 SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause death personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency muse use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing Follow all safety
8. ation Instructions Owner s Manual and Company s service information 8 Defective parts must be returned to the distributor through a registered servicing dealer for credit 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 THE EXPRESS WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED ENLARGED OR CHANGED BY ANY DISTRIBUTOR DEALER OR OTHER PERSON WHATSOEVER O L an i m H S lt ak i m H THIS WARRANTY DOES NOT COVER 1 Labor or other costs incurred for diagnosing repairing removing installing shipping servicing or handling of either defective parts or replacement parts or new units 2 Any product purchased over the Internet 3 Normal maintenance as outlined in the installation and servicing instructions or Owner s Manual including filter cleaning and or re placement and lubrication 4 Failure damage or repairs due to faulty installation misapplication abuse improper servicing unauthorized alteration or improper operation 5 Failure to start due to voltage conditions blown fuses open circuit breakers or damages due to the inadequacy or interruption of
9. codes Wear safety glasses protective clothing and work gloves Have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes and the current editions of the National Electrical Code NEC NFPA 70 In Canada refer to the current editions of the Canadian Electrical Code CSA C22 1 Recognize safety information This is the safety alert symbol AN When you see this symbol on the unit and in the instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies a hazard which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation INTRODUCTION There are two Base Series programmable thermostat models one for AC applications and one for HP applications Both are dual powered operating from either 24VAC or two alkaline AA batteries Configuration and program schedules are stored in non volatile memory preserving this information during power loss and battery removal Features include
10. d has expired The timeguard affects only compressor operation Pressing UP and FAN buttons simultaneously will override the timeguard for 1 cycle If PTAC operation PH or PC is selected under Option 1 the timeguard timer is eliminated Cycle Timer In normal heating and cooling operation the thermostat will not allow more than 4 equipment cycles per hour or 1 cycle every 15 minutes Both the Y and W outputs have a 15 minute timer that starts counting down when the output is turned on e g if Y output is turned on for 9 minutes and then satisfies it cannot turn back on for another 6 minutes regardless of demand However A L an i m H lt ak i m H am ala an m H ae lt ak m H pressing UP and FAN buttons simultaneously or changing the setpoint will override the timer for 1 cycle Minimum on Timer Once the equipment has turned on it will remain on for a minimum of 3 minutes regardless of demand However the equipment can turn off in less than 3 minutes if a change in setpoint or a change in mode occurs Staging Timer If the thermostat is a heat pump model it has 2 stage heat capability In normal operation there is a 15 minute delay between the first and second stages of heat The Y output will energize first then 15 minutes later W is allowed to come on if the thermostat determines it is not satisfying the demand However if the heating demand is greater than 5 F 3 C there will be onl
11. d other jurisdictions that prohibit warranty benefits condi tioned on registration registration is not required to obtain longer warranty periods See Warranty Conditions below Tf properly transferred within 90 days otherwise 5 years See Warranty Conditions below In California and Quebec and other jurisdictions that pro hibit warranty benefits conditioned on registration registration is not required for a transfer and all warranty periods for subsequent owners are five years from original installation Applies only to Thermostats Active electronic finished good accessories such as the optional ExP module have different warranty terms See product for details OTHER RESIDENTIAL APPLICATIONS Apartments Rental Properties etc The warranty period is five 5 years and is not transferable OTHER APPLICATIONS This warranty is non transferable The warranty period is one 1 year on all such applications 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 49004DP110 05 09 n L n m H s lt an m H CARRIER CORPORATION WARRANTY CONDITION
12. digits are showing The configuration number now 01 will appear in the setpoint temperature location and the configuration setting will appear in the clock location The configuration number left pair will be flashing which means it can be adjusted using the UP and DOWN keys To cause the opposite pair to flash to be adjustable press the H C key Successive presses of the H C key alternate between the configuration number left and the configuration setting right To exit the configuration mode press the HOLD END key If no key is pressed for 3 minutes the configuration mode will automatically exit returning the thermostat to normal operation Configuration Options Selection Option 01 Equipment type Selections with HP thermostat HP AC PH or PC with AC thermostat AC or PC Meanings PH or PC selects PTAC units Packaged Terminal Air Conditioners which are used in motel rooms and other rented spaces When this option is selected the display shows only the setpoint not the room temperature Also the compressor timeguard is disabled allowing the compressor to turn on immediately when a demand is established HP or PH controls 1 speed heat pump with 1 stage of aux heat AC or PC controls 1 speed air conditioner with one stage of heat Note that this option allows a HP thermostat to be converted to control an AC system Option 03 Fahrenheit Centigrade Selections F Fahrenheit This is default C Centigrade Select
13. e if you suspect a problem with your heat pump call your heating and cooling dealer immediately Table 1 Programming Table ENTONI DE AUL ues NENO OMEON TA RETGEE PERIOD TIME CooL Heat MO ANe Thir CooL HEAT HE COOL HEAT MORNING SP oe Ail 2 3 13 14 15 DAY A s i T E 5 6 16 17 18 EVE ay ee a AE 8 9 19 20 21 NIGHT Avia a AE 11 12 22 23 24 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 Box 4808 Syracuse New York 13221 Phone 1 800 227 7437 PRODUCT REGISTRATION You can register your product online at www carrier com Model No Serial No Series Infinity Performance Comfort Base Date of Installation Installed by Name of Owner Address of Installation Carrier Corporation hereinafter Company warrants this product against failure due to defect in materials or workmanship under normal use and maintenance as follows All warranty periods begin on the date of original installation If a part fails due to defect during the applicable warranty period Company will provide a new or remanufactured part at Company s opt
14. ess of the UP or DOWN button the large display shows the current setpoint and the SET TEMP icon is turned on Further presses of the UP or DOWN but ton adjust the setpoint upward or downward Five seconds after the last button press the display returns to the room temperature and the SET TEMP icon turns off PROGRAMMED OPERATION Introduction The Base Series Programmable Thermostat provides four periods per day MORNING DAY EVE NIGHT and two schedules per week MoTuWeThFr and SaSu A separate time heat setpoint and cool setpoint can be set for each period and schedule Before starting to actually program the thermostat fill out Table 1 with the values you wish to program The Energy Star US Department of Energy recommended time and temperature values are already programmed for you as a starting point and are shown on the left side of the table The first press of the PROGRAM button brings up the programming mode and places you at morning of the current day and period Successive presses move you between the four daily periods While Programming The TIME TEMP button moves between three selections of SET TIME SET TEMP amp HEAT and SET TEMP amp COOL These three numbers are to be programmed for each of the periods MORNING DAY EVE and NIGHT The DAY button moves between the weekdays MoTuWeThFr and the weekend SaSu selections A different schedule may be set for the weekdays and the weekend You may exit prog
15. ion to replace the failed defective part at no charge for the part Alternatively and at its option the Company will allow a credit in the amount of the then factory selling price for a new equivalent part toward the retail purchase price of a new Company product Except as otherwise stated herein those are Company s exclusive obligations under this warranty for a product failure This limited warranty is subject to all provisions conditions limitations and exclusions listed below and on the reverse if any of this document 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 Limited Warranty Years Series Item Original Owner Subsequent Owner User Interface amp Smart Sensor 10 or 5 10 or 5 o Zoning Board 10 or 5 10 or 5 Infinity Network Interface 10 or 5 10 or 5 Remote Access 10 or 5 10 or 5 Thermostat 10 or 5 10 or 5 Performance Zoning Interface amp Smart Sensor 10 or 5 10 or 5 Zoning System 10 or 5 10 or 5 Thermostat 10 or 5 10 or 5 Comfort Zoning Board 10 or 5 10 or 5 Base Thermostat 5 5 If properly registered within 90 days otherwise 5 years except in California and Quebec an
16. nd a door or in an alcove Step 2 Install Thermostat IMPORTANT Install batteries last to ensure proper thermostat mounting and latch engagement A08429 10 Rotate the front housing forward and press on the faceplate A WARNING with thumbs near the Up Down arrows on the right and the H C and fan symbols on the left side of the display Do ELECTRICAL OPERATION HAZARD this with a moderate amount of pressure Failure to follow this warning could result in personal injury or death Before installing thermostat turn off all power to unit There may be more than 1 disconnect Lock out and tag switch with a suitable warning label 1 Turn OFF all power to HVAC unit 2 If an existing thermostat is being replaced a Remove existing thermostat from wall b Disconnect wires from existing thermostat one at a time Be careful not to allow wires to fall back into wall c As each wire is disconnected record wire color and terminal marking A08430 d Discard or recycle old thermostat 11 If necessary continue to rotate the front housing forward and press to engage the top corner latches A CAUTION ENVIRONMENTAL HAZARD Failure to follow this caution may result in environmental damage Mercury is a hazardous waste and may be found in the old thermostat Federal regulations require that Mercury be disposed of properly 3 Separate front and back plastic assembly of thermostat 4 Route thermostat wires
17. ou will enter the programming schedule at the present day present mode but always in the morning period You are ready to set the new starting time for the morning period One press of the TIME TEMP button and you are ready to set the new morning temperature To set values for other periods use the PROGRAM button To set values for other days use the DAY button Press HOLD END and you are finished Overriding Your Comfort Schedule There are two ways to override your comfort schedule Method 1 Manual Operation By pressing the HOLD END button to turn on the HOLD icon the thermostat will maintain the current temperature settings and ignore the comfort schedule for an indefinite period of time The word HOLD will appear in the display Press the HOLD END button a second time and the thermostat will return the temperature settings to the programmed comfort schedule Pressing HOLD END will not alter your programmed comfort schedule Method 2 Temporary Override At the first press of the UP or DOWN button the current temperature setting will appear on the display Pressing the UP or DOWN button again will temporarily change the setpoint as needed At the next programmed time the programmed comfort schedule will resume CHANGING BATTERIES In some situations two AA batteries are the power source for the thermostat If batteries are used with your equipment then they should last about one year As the batteries lose their power a
18. ramming at any time by pressing the HOLD END button am L an m H T lt ak m H Programming A Weekly Comfort Schedule 1 Press the PROGRAM button The word PROGRAMMING appears on the display and the words SET TIME flash on the display MoTuWeThFr or SaSu and the morning period icons will appear on the display The current mode HEAT or COOL will also show Use the DAY button to select weekdays and the PROGRAM button to select MORNING 2 Press the UP or DOWN button to set the start time for MORNING 1 value in Table 1 3 Press the TIME TEMP button until COOL is on and SET TEMP flashes on the display 4 Press the UP or DOWN button to select the cooling temper ature setpoint 2 value in Table 1 5 Press the TIME TEMP button until HEAT is on and SET TEMP flashes on the display 6 Press the UP or DOWN buttons to select the heating tem perature setpoint 3 value in Table 1 7 Press the PROGRAM button to advance to the next time period Enter time and temperature settings 4 through 12 in Table 1 for the periods DAY EVE and NIGHT by fol lowing items 2 6 above 8 Press the DAY button to change between weekday and weekend programming To set the weekend schedule repeat items 2 through 7 entering values in 13 through 24 in Table 1 9 Press END HOLD to exit the programming mode Modifying Your Weekly Comfort Schedule If you choose to change any of your weekly schedule press PROGRAM at any time Y
19. s temperature display units Option 04 Fan G ON with W output Selections OF G not energized with W This is default ON G energized with W This selection determines whether the fan G is to be ON or OFF when the W furnace or strip heat is ON Furnaces and fan coils which manage their own blowers do not require a separate G signal Some auxiliary heaters require a separate G signal to operate the blower when W is applied This option allows a HP thermostat to control an AC system Option 10 Reversing valve Selections C reversing valve energized in cooling This is default H reversing valve energized in heating Only appears in HP systems Option 13 Room Air Temperature Offset Selections 5 F 3 C Default is 0 The number of degrees to be added to the displayed temperature to calibrate or deliberately miscalibrate the measured room temperature This option is in F even if Option 3 is set for C Option 21 Keypad Lockout Selections ON OF Default is OF With OF selected the keypad cannot be locked With ON selected the keypad will be locked and can be unlocked by simultaneously pressing the UP and DOWN keys for 5 seconds Once unlocked it will relock 2 minutes after the last keypad press If any key is pressed and the thermostat is locked loc will be displayed in the clock digits Option 26 Minimum Cooling Setpoint Selections 50 to 90 F 10 to 32 C Default is 52 F
20. seconds to tell you it is an air conditioner AC or a heat pump HP model After this the time display will flash to tell you the power has been off Setting The Current Time 1 Press the TIME TEMP button SET TIME flashes on the display 2 Press the UP or DOWN button until the correct time is dis played 3 To quickly advance to the proper time press and hold the UP or DOWN button 4 When the correct time appears on the display press the HOLD END button NOTE If you choose not to press the HOLD END button the thermostat will automatically exit the time setting mode after 10 seconds Setting The Current Day 1 Press the DAY button to advance to the correct day 2 When the correct day appears on the display press the HOLD END button MANUAL OPERATION To Operate Manually Without the Programmed Comfort Schedule Press the HOLD END button to make the HOLD icon appear Then follow the four steps below 1 To Select the Mode Use the H C button to move between the choices OFF HEAT COOL or EMHT will appear on the display EMHT will only appear on heat pump models 2 To Select the Fan Operation Use the FAN button to move between continuous fan in dicated by the FAN ON icon and auto fan operation 3 To Read the Room Temperature The large display reads room temperature until a button is pressed 4 To Adjust the Setpoint In normal operation the large display shows room temper ature At the first pr
21. simplified 5 2 day programming large backlit display and modern styling The AC model provides one stage of heating and one stage of cooling The HP model provides two stages of heating and one stage of cooling INSTALLATION CONSIDERATIONS AC Operation For 24VAC operation both the R and C wires must be connected to the 24VAC power source Batteries are not needed Battery Operation When batteries are used the common C connection is not needed saving a wire and eliminating 24VAC operation The thermostat continues to operate in the event of a power failure Battery life is expected to be one year A low battery reminder tells the homeowner when it is time to replace the batteries When connected without the common wire the thermostat will not operate without batteries Continuous back lighting is not available Both Battery and AC Operation If both batteries and 24VAC operation are used batteries installed and the common wire connected and indefinite clock operation are provided the battery will be used only during AC power loss extending battery life to nearly its shelf life A jumper has to be properly set for backlight operation J2 should be set in the AC position when the thermostat is operated from 24VAC J2 should be set in the BAT position when the oO T a m H lt q a m thermostat is operated from batteries The thermostat will continue 6 Secure back plate to wall
22. with 2 anchors and screws to operate if J2 is not in the correct position or not connected provided making sure all wires extend through hole in However the backlight will not operate plastic INSTALLATION NOTE Anchoring the back plate will maximize proper mounting IMPORTANT Install batteries last to ensure proper thermostat plate flatness and allow latch to fully engage mounting and latch engagement Step 1 Thermostat Location 7 Connect wires to proper terminal location on backplate 8 Push any excess wire back into wall Seal hole in wall to prevent air leaks Leaks can affect thermostat operation Thermostat should be mounted Any excess wire left inside thermostat casing may also af e Approximately 5 ft 1 5m from floor fect thermostat operation by interfering with airflow across e Close to or in a frequently used room preferably on an inside the temperature sensor 9 Set the thermostat front housing into the 2 latches partitioning wall notches on the bottom of the back plate e On a section of wall without pipes or duct work Thermostat should NOT be mounted e Close to a window on an outside wall or next to a door leading to the outside e Exposed to direct light and heat from the sun a lamp fireplace or other heat radiating object which may cause a false reading e Close to or in direct airflow from supply registers and return air grilles e In areas with poor air circulation such as behi
23. y a 30 second delay before bringing on W Auxiliary Heat Indicator When operating a heat pump and either auxiliary heat or emergency heat is active an LCD display icon indicates this condition OFF SET TEMP MORNING DAY EVE NIGHT AUTO x x Mo Tu We Th Fr Sa Su PM Ga SET D CooL lt M A os EMHT Dao TIME ee B FANON HOLD AUXHEAT PROGRAMMING A07821 Error Messages If the room temperature sensor fails two dashes will appear in the temperature display and all heating and cooling outputs will be turned off The thermostat must be replaced If the internal non volatile memory fails E4 will alternately flash with the temperature on the display and all heating and cooling outputs will be turned off The thermostat must be replaced Step 5 Check Thermostat Operation Fan Operation 1 Press FAN button This will start continuous fan operation FAN ON icon will turn on 2 Press FAN button again This will stop continuous fan oper ation FAN ON icon will turn off Heating Operation 1 Press H C button until HEAT is displayed 2 Press UP button until LCD readout reads 3 F 2 C above room temperature Press UP and FAN buttons simultan eously to defeat timers Heating system should begin to op erate immediately 3 For HP thermostats only press H C button until EMHT emergency heat appears Press UP and FAN buttons sim ultaneously to defeat timers Emergency heating W is ON Y is OFF should begin immediately
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