Honeywell EnergyPro T8665C Owner'S Manual Download Page 19

Page: 19 / 88

even program the thermostat to return to your

regular programming schedule on your last day

of vacation so you are comfortable when you

return and yet save energy while you are away.

SETTING THE CLOCK

Setting Current Day and Time

IMPORTANT

Always press keys with your fingertip

or similar blunt tool. Sharp instruments

like pens and pencil points can

damage keyboard.

On initial powerup or after an extended power

loss, “1:00 PM” flashes on display until a key is
pressed.

69-1538

Summary of Contents for EnergyPro T8665C

Page 2: ...ostat Features 7 Operating Your Thermostat 11 Setting the Clock 12 Programming Your Thermostat 25 Replacing the Batteries T8665C Only 38 Adaptive Intelligent Recovery Control 40 Troubleshooting Table 3 43 Warranty 50 Customer Assistance 51 69 1538 2 ...

Page 3: ...s and convenience to your home comfort system As part of a larger system of products and services from your Energy Utility your new thermostat allows you to take advantage of special programs offered through your Energy Utility These programs allow you to further increase your energy savings beyond the efficiency of a traditional programmable thermostat ...

Page 4: ...t can be used standalone it is intended to be part of a communicating system provided by your Energy Utility Read this document thoroughly to take advantage of the convenience and energy saving benefits of using this product 3 69 1538 ...

Page 5: ...ake changes to your thermostat settings or settings from your Energy Utility The following symbols will help you identify the features that apply to your system Tip symbol Look for helpful tips throughout this guide when you see this symbol Compressor with the word Heat Pump below These features are availble when used with a heat pump HEAT PUMP 69 1538 ...

Page 6: ...he display See Fig 1 Display The thermostat displays important information such as day time schedule period temperature filter information system and fan operation See Fig 2 WARNING This product operates under provisions of Part 15 of the FCC Rules Modifications to this product not specifically authorized by Honeywell may void the user s authority to operate this device ...

Page 7: ...HOLD TEMP COOL SETPOINTS WHILE PROGRAMMING PERIOD 0 15 30 60 90 120 DAYS M20893A TIME SETS TIME MY CHOICE DAY COPY Fig 1 Thermostat keyboard description 5 69 1538 ...

Page 8: ... lAuxHt Days _ fedThuFri Sat Sun Repl Batt Room eave Return Sleep Recovery DST SHOW S BATTERIES NEED REPLACING SHOW S ADAPTIVE INTELLIG ENT RECOVERYTM IS IN EFFECT SHOW S SYSTEM ON DAYLIGHT SAVING TIM E SHOW S TEM PERATURE DISPLAYED IS THE CURRENT ROOM TEM PERATURE SHOW S SM ART RESPONSE IS OFF AND CONVENTIO NAL RECOVERY IS ON DISPLAYS EITHER ROOM OR SET TEM PERATURE SHOW S TEM PERATURE DISPLAYED ...

Page 9: ...orary schedule override set the thermostat higher or lower for the current program schedule Permanent schedule override set the thermostat higher or lower indefinitely Vacation mode 1 to 255 days for added comfort and energy savings Set the temperature higher or lower for energy savings while on vacation At the same time set the comfort level you want when you return ...

Page 10: ...cessory the current setpoints or the filter status Daylight Time key for quick time changes between Daylight and Standard time Backlit display for improved readability press any key to activate Optional outdoor temperature display ask your installer to install an outdoor temperature sensor to activate this feature For additional features see the System User s Guide provided by your Energy Utility ...

Page 11: ...ams and features please contact your local Energy Utility Demand Response If your utility offers a Demand Response Program this thermostat can be managed by your utility to reduce your energy consumption during times of peak demand When your thermostat is helping your Energy Utility to manage energy in your community the word SAVE is displayed on the thermostat as shown If you have any questions a...

Page 12: ...of this thermostat or these special programs and features please contact your local Energy Utility 5AI E 1 Ï Room System o cool 3 Sat Fan Wake DST î Auto M20901 3 ...

Page 13: ...o w e r y o u r h o m e te m p e ra tu re s e ttin g im m e d ia te ly p rio r to a D e m a n d R e s p o n s e e v e n t to m in im iz e th e e ffe c t on y o u r c o m fo rt W h e n th e P re h e a t o r P re c o o l o p tio n is in e ffe c t th e th e rm o s ta t d is p la y s PrE System P rE Room O tool 3 j Tue Fan Wake DST I î t Auto M20902 ...

Page 14: ... lly a d ju s t y o u r e n e rg y u s e fo r e a c h rate T h e ra te in e ffe c t is in d ic a te d on th e th e rm o s ta t d is p la y as s h o w n C ritic a l Hi M ed a n d Lo T h is ty p ic a lly in v o lv e s c o n tro llin g y o u r h o m e a t a h ig h e r te m p e ra tu re d u rin g c o o lin g s e a s o n a n d a lo w e r te m p e ra tu re d u rin g h e a tin g s e a s o n to re d u c e...

Page 15: ...tical in nn IU UU O Dool 3 I Tue Room l Fan Wake DST i Auto M20906 Display shows Critical rate in effect Hi iwnA MIS Room System O Cool 3 j Tue Fan Wake DST Auto M20903 Display shows High rate in effect 69 1538 1 ...

Page 16: ...ed i n n t r I E Room System q Sfr Cool J Tue 1 Fan Wake DST i t Auto M20904 Display shows Medium rate in effect G O D Room System O Cool 1 Tue Fan Wake DST i Auto M20905 Display shows Low rate in effect ...

Page 17: ... a t o r P re c o o l Y o u r E n e rg y U tility m a y o ffe r a p ro g ra m th a t in c o rp o ra te s th e M y C h o ic e fe a tu re To u s e M y C h o ic e a nd c a n c e l an e n e rg y s a v in g e v e n t p re s s a n d h o ld R u n P ro g ra m k e y fo r th re e s e c o n d s u n til th e th e rm o s ta t d is p la y s D o n e j ___ r LIL 11 f _ 1 ...

Page 18: ...s a v e s e n e rg y a n d k e e p s y o u c o m fo rta b le a t th e s a m e tim e Y ou m a y be w o n d e rin g h o w to p ro g ra m y o u r th e rm o s ta t a n d h o w to u s e s o m e m o re tim e a n d e n e rg y s a v in g fe a tu re s F irst le t s lo o k a t fe a tu re s y o u ll be u s in g o fte n like s e ttin g th e S y s te m a n d F an ke ys h o w to o v e rrid e th e c u rre n t p ...

Page 19: ...eturn and yet save energy while you are away SETTING THE CLOCK Setting Current Day and Time IMPORTANT Always press keys with your fingertip or similar blunt tool Sharp instruments like pens and pencil points can damage keyboard On initial powerup or after an extended power loss 1 00 PM flashes on display until a key is pressed 69 1538 1 ...

Page 20: ... J i n r i i u u p m Mon Press Set Current Day Time key to show information displayed Setting the clock can be controlled as part of the system using two way RF communication then the time is automatically updated 2 Press Day key until current day displays 2 ...

Page 21: ...Wednesday Thu Thursday Fri Friday Sat Saturday Sun Sunday K13l EI7liH3 i n r i i u u p m Tue M14581 Press Day key to set current day Example display shows Tuesday 3 Press Time A or Time Vkey until current time displays r i r i 1 ...

Page 22: ...e key to advance time in one hour increments Set Current Day Time J 4 Press Run Program key to return to normal operation 1C A M U I I Tub Press Time A or Time V key to set current time Example display shows 8 15 AM 3 69 1538 ...

Page 23: ...ng Time NOTE If current time is Daylight Saving Time press Daylight Time key to display DST Daylight Time BEW EVMi iM O 1C A M U 1 1 Tue D S T M 14 5 8 Î Press Daylight Time key to set Daylight Saving Time 69 1538 1 ...

Page 24: ...ier or later with or without DST Pressing Daylight Time six times in a five minute period returns you to your original setting Setting System and Fan Keys Use the System and Fan keys to change the system and fan settings The fan settings can be set for each schedule period individually System selection is for all schedule periods ...

Page 25: ...pressor damage allow compressor to remain off for five minutes before restarting To avoid possible equipment damage do not operate cooling when outside temperature is below 50 F 10 C See equipment manufacturer instructions Setting System Key Press the System key until the desired system Heat Off Cool or Auto displays 1 ...

Page 26: ...Cool The thermostat controls the cooling Auto The thermostat automatically changes between heating and cooling operation depending on the indoor temperature Em Ht Emergency heat is controlled as stage 1 HEAT PUMP heat The Cooling system is off The compressor is de energized 5 69 1538 ...

Page 27: ...ling Setting Temporary Temperatures You can override the current schedule period to temporarily change the temperature setting until the next schedule period or you can change and hold the temperature setting indefinitely You can also change the temperature setting until a designated day and period for example while you are on vacation 69 1538 1 ...

Page 28: ... displays Temporary Setting in I L I W h i l e s e l e c t i n g a t e m p o r a r y s e t t i n g o n l y t h e s e t p o i n t d i s p l a y s The temporary temperature setting you select displays for approximately three seconds The display reads Temporary until the next period begins or when you cancel the temporary temperature setting ...

Page 29: ...ncel the temporary temperature pro g rn a m l setting before the designated time J M14564 After selecting a temporary setting the display reads Temporary until cancelled Example display shows temporary heat setting of 70 at 6 00 AM 1 ...

Page 30: ...pping or key changes both heat and cool setpoints one degree Press i key after setpoint is reached to verify setpoints Changing and Holding Temperature Setting Indefinitely H o ld Tempi 1 Press Hold Temp key once J 2 Press increase or decrease key to change temperature setpoint if desired 7 69 1538 ...

Page 31: ...om setpoint to room temperature after approximately three seconds 3 Press Run Program key to cancel hold Press Hold Temp key once to display the thermostat in Hold mode Example display shows temporary heat setting of 60 69 1538 1 ...

Page 32: ...riod Vacation Hold 1 P re s s H o ld T e m p k e y tw ic e i i S e ttin g S v s le m c n i u U H o ld fo r D a y s f W a k e H e a t Auto M14833 Press Hold Temp key twice to display thermostat in Vacation mode Example display shows temporary heat setting of 60 ...

Page 33: ... re s s T im e A o r T im e V u n til d e s ire d n u m b e r o f r d a y s 1 to 2 5 5 d a y s d is p la y s Hold for i n f O Setting C n L I L I System Heat Days Fan W ake Heat Auto Press Time A or Time V key to select number of vacation days Example display shows 18 vacation days 1 ...

Page 34: ...e n d s Wake j Leave j Return Sleep j Selling i n c n i u U Hold for IO Days Return I Heat Auto M14571 In this example the Hold ends after the 18thday at the beginning of the Return period 4 P re s s in c re a s e o r d e c re a s e to a d ju s t te m p e ra tu re s e ttin g if d e s ire d 9 69 1538 ...

Page 35: ...e n S y s te m is s e t to C o o l T h e th e rm o s ta t u s e s b o th h e a tin g a n d c o o lin g te m p e ra tu re s w h e n S y s te m is s e t to A u to Setting sy5 i r i r r i Hold for I U 1 I Days 1 1 1 i Fan J Return Heat Auto M14572 Press increase or decrease key to select a new Hold temperature Example display shows temporary heat setting of 55 69 1538 2 ...

Page 36: ... re s s in c re a s e o r d e c re a s e to a d ju s t te m p e ra tu re s e ttin g if d e s ire d fo r e x a m p le if co o l is s e t to 8 4 c o o lin g e q u ip m e n t o p e ra te s w h e n ro o m te m p e ra tu re is a b o v e 8 4 F 7 P re s s R u n P ro g ra m to s ta rt ______ o v e r o r re tu rn d is p la y to pmgLi n o rm a l o ...

Page 37: ...ORMATION KEY S r i The i information key provides information at your fingertips in this sequence of key presses Outdoor temperature if equipped Current setpoint of mode in use Heat or Cool Setpoint of mode not currently in use Filter status ...

Page 38: ...tdoor temperature if equipped Current setpoint of mode in use Heat or Cool Setpoint of mode not currently in use Displaying Outdoor Temperature Press i key once to display outdoor temperature Example display shows outdoor temperature at 50 1 Press i key once to display outdoor temperature if equipped 69 1538 ...

Page 39: ... temper Displaying Current Settings Press i key twice to check current temperature setpoint Press i key three times to check temperature setpoint of mode not currently in use ature See Filter Indicator section for instructions on resetting filter indicator 69 1538 2 ...

Page 40: ...shows cooling setpoint of 75 Without outdoor temperature sensor press i key once to display current setpoint press i key twice for opposite setpoint If filter status is expired press i key three times to check current temper ature setpoint if equipped with outdoor sensor 2 ...

Page 41: ...s running and lets you know when to replace the filter based on the number of fan run time days you select On expiration thermostat displays Filter One fan run time day equals 24 fan run time hours If fan is on only one third of the time each day it takes three days to deduct one fan run time day 2 ...

Page 42: ...piration 1 Press Filter key to enter Filter mode F le r Filter n n o u u I Days Setting j n D u Press Filter key to display filter information Example display shows current fan run time set to 30 days with filter set to expire in five days 2 Press and hold Filter key for at least three seconds to F le r J reset fan run time 3 69 1538 ...

Page 43: ...ime A or Time V until desired number of days display 0 15 30 60 90 or 1 2 0 Press Run Program key to return to normal operation IMPORTANT To track time fan is running you must select a setting other than 0 0 means off If setting is 0 days display always shows 0 Days 0 Setting when Filter key is pressed 69 1538 2 ...

Page 44: ... d on u p p e r rig h t o f the th e rm o s ta t in d ica te w h e n a H e a t P u m p F a u lt M o n ito r o r E q u ip m e n t M o n ito r s ig n a l is s e n t to th e th e rm o s ta t fro m th e syste m W h e n H e a t P u m p F a u lt M o n ito r LE D in d ic a to r lig h ts re d see T ro u b le sh o o tin g se ctio n 4 ...

Page 45: ...service com pany Heating with Em Ht is expensive so act quickly Successful Communication Indicator The thermostat periodically sends and receives messages The small triangle right of the temperature display indicates the thermostat successfully communicated with the system controller installed by your Energy Utility HEAT PUMP 2 ...

Page 46: ...peration Your thermostat is 7 day programmable which means you can set your thermostat for four periods Wake Leave Return and Sleep and up to eight temperatures four Heat and four Cool for each day of the week Each day can be the same or different 5 69 1538 ...

Page 47: ...e during cooling season LEAVE The program 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 higher temperature during cooling season and it follows the WAKE period RETURN The program period when you want the house at a comfortable tempera ture for activities before bedtime This is a higher temperature dur...

Page 48: ...s is a lower temperature during heating season and a higher temperature during cooling season and it follows the RETURN period 7 Day Preprogrammed Schedule Your thermostat is preprogrammed with the schedule shown in Table 1 same schedule for all days of the week You may keep this schedule or develop your own Before starting the programming procedure use Table 2 to plan your schedule 6 ...

Page 49: ...e heating and cooling tempera tures you want for each period Table 1 7 Day Preprogrammed Schedule Day WAKE LEAVE RETURN SLEEP A ll D a ys T IM E 6 0 0 A M T IM E 8 0 0 A M T IM E 6 0 0 PM T IM E 1 0 0 0 PM FAN A U T O FAN A U T O FAN A U T O FAN A U T O H 70 C 78 H 62 C 85 H 70 C 78 H 62 C 82 2 1 2 5 1 6 5 2 9 5 21 2 5 5 1 6 5 28 27 69 1538 ...

Page 50: ...UTO ON H C TIME FAN AUTO ON H C TIME FAN AUTO ON H C MON TIME FAN AUTO ON H C TIME FAN AUTO ON H C TIME FAN AUTO ON H C TIME FAN AUTO ON H C TUES TIME FAN AUTO ON H C TIME FAN AUTO ON H C TIME FAN AUTO ON H C TIME FAN AUTO ON H C WED TIME FAN AUTO ON H C TIME FAN AUTO ON H C TI ME FAN AUTO ON H C TIME FAN AUTO ON H C 69 1538 28 ...

Page 51: ...TIME FAN AUTO ON H C TIME FAN AUTO ON H C TI ME FAN AUTO ON H C TIME FAN AUTO ON H C FRI TIME FAN AUTO ON H C TIME FAN AUTO ON H C TI ME FAN AUTO ON H C TIME FAN AUTO ON H C SAT TIME FAN AUTO ON H C TIME FAN AUTO ON H C TI ME FAN AUTO ON H C TIME FAN AUTO ON H C 29 69 1538 ...

Page 52: ...an operation for any one day 1 Press the Wake key j e J kflUTPlTTnl C n r i o u u Tue Wake Setting i r n ILI i Heat System Heat Fan Auto P re ss W a ke ke y to e n te r p ro g ra m m o de E xa m p le d isp la y s h o w s 6 0 0 A M T u e s d a y w ith H eat se t to 70 F 2 Press Day key until desired day displays 69 1538 3 ...

Page 53: ... n M o n W a k e H e a t Auto M14588 P re s s D ay key to se le c t d a y to p ro g ra m E xa m p le d isp la y s h o w s M o n d a y is s e le c te d a n d re a d y to p ro g ra m 3 Press Time A or Time V key until desired Wake time displays r i r i 0 ...

Page 54: ...m e A o r Tim e V key to s e le c t tim e W ake p e rio d w ill b e g in E xa m p le d is p la y s h o w s W a ke p e rio d w ill b e g in at 6 3 0 A M The program times are in fifteen minute intervals for example 8 0 0 8 15 8 30 4 Press increase or decrease until desired Wake temperature displays ...

Page 55: ... Auto M14590 P re s s in cre a se o r d e cre a s e T k e y to se le ct te m p e ra tu re fo r W a ke pe rio d E xa m p le d is p la y h o w s h e a tin g W a ke p e rio d se t fo r 68 Setpoint temperature range is 40 to 90 F 4 to 32 C for heating C 6 DL 55 to 99 F 13 to 37 C for cooling u 69 1538 ...

Page 56: ... an means fan runs only when heating or cooling equipment is operat ing Selecting On means fan runs contin uously for entire schedule period 6 Press Heat Cool Settings ____ key to make selections for sSingfj opposite system setting either Heat or Cool 69 1538 3 ...

Page 57: ... a t C o o l S e ttin g s key to se le c t co o lin g sy ste m if yo u p re vio u sly se t h e a tin g te m p e ra tu re C u rre n t se ttin g d isp la ys E xa m p le d is p la y s h o w s co o lin g syste m p re vio u s ly se t fo r 78 ...

Page 58: ...ool Auto P re ss in cre a se o r d e cre a s e T t o s e le c t c o o lin g W a ke te m p e ra tu re E xa m p le d is p la y s h o w s co o lin g W a ke p e rio d se t fo r 76 8 Press Leave Return or Sleep and repeat steps 3 through 6 to program entire day The day first day of a 7 day schedule is now programmed I Sleep j ...

Page 59: ...refer to Copying a Day section to copy any programmed day to another day 9 Press Run Program key to return to normal operation Copying a Day The thermostat must be in program mode to use the copy feature Go to step 2 if the thermostat is already in program mode set program displays in upper left corner 3 69 1538 ...

Page 60: ...py from D a yCQ K r a iîn iT fT E ïïfl S e ttin g S y s le m c zin a m ÜJU C 0 u u u M o n W a k e H e a t Auto M14590 P re ss D ay key to se le c t th e d a y s c h e d u le to copy E xa m p le d is p la y s h o w s th e rm o s ta t in p ro g ra m m o d e w ith M o n d a y re a d y to be co p ie d 69 1538 3 ...

Page 61: ... Press Copy key L J C D Q L C M o n Press Copy key to copy a day schedule into memory Example display shows Monday schedule was coped into memory 4 Press Day key until day to be copied to is displayed 4 ...

Page 62: ... ss D ay key a g a in to s e le c t th e d a y to c o p y to E xa m p le d is p la y s h o w s M o n d a y an d W e d n e sd a y B e ca u se M o n d a y w a s a lre a d y s e le c te d M o n d a y s c h e d u le w ill be co p ie d to W e d n e sd a y ...

Page 63: ...s c h e d u le w a s s u c c e s s fu lly co p ie d to W e d n e s d a y M o n d a y and W e d n e s d a y n o w ha ve th e sa m e sch e d u le NOTE donE displays for two seconds before the normal display returns 6 7 Repeat steps as necessary for all peri ods and days desired Press Run Program key to return to normal operation 5 69 1538 ...

Page 64: ...ermostat must be in program mode to use clear feature Go to step 2 if thermostat is already in program mode Set Program displays in upper left corner 1 Press Leave Return or Sleep key to enter program mode Return S leep 69 1538 3 ...

Page 65: ...de E xa m p le d is p la y s h o w s 8 0 0 A M on M o n d a y in Le ave p e rio d w ith H e a t se t fo r 62 2 Press Day key until desired day displays H tfa tiiiiE T M l Setting n n ri c J D C O uu S at Leave H eat P re s s D ay key to se le c t th e d a y to be g in cle a rin g the p e rio d s E xa m p le d is p la y s h o w s S a tu rd a y is se le cte d 6 ...

Page 66: ...ing clear approximately three seconds R e t u r n j Sleep j Setting Sat Leave Heat P re ss a n d ho ld L e ave R etu rn o r S le e p key to c le a r th e p e rio d fo r th a t day E xa m p le d is p la y s h o w s S a tu rd a y Le ave p e rio d cle a re d NOTE Wake cannot be cleared ...

Page 67: ...mple Wake and Sleep If you clear only Leave and Return periods for Saturday or any day thermostat remains inWake period for all of Saturday until Sleep period 4 5 Repeat steps as necessary periods to be cleared Press Run Program key to return to normal operation for all 7 69 1538 ...

Page 68: ...ng and operation of the thermostat and the heating cooling system 1 Install batteries in wallplate so positive terminals all point up as shown 2 If the thermostat is already mounted on the wall remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown on the next page 69 1538 38 ...

Page 69: ...W A L L P L A T E ...

Page 70: ...3 When batteries are running low a REPL BAT message flashes for one to two months before batteries run out com pletely Replace batteries as soon as pos sible after message flashes 3 ...

Page 71: ...er 4 If you insert new batteries within 20 to 30 seconds of removing old batteries the system retains current time and day Ifthe display is blank batteries are dead or installed incorrectly You must reset time and day See Setting the Clock section when leaving home for longer than a month change batteries before leaving to prevent system shutting down due to lack of power As a precaution 9 69 1538...

Page 72: ...smart it s almost human You perceive temperature from a variety of sources not only from the air in the room but also from your surrounding walls windows and furnishings Humans feel differences in temperature as slight as two degrees Fahrenheit Common household thermometers and standard thermostats sense only air temperature which may not reflect how hot or cold the room actually new thermostat 69...

Page 73: ...cooling system it considers air temperature wall temperature and the time you want to reach the comfort temperature After considering these three things Adaptive Intelligent Recovery control gradually changes the temperature from the energy savings setting to the comfort setting for example from a heating temperature of 62 at night to 70 in the morning The system runs continuously until the comfor...

Page 74: ...y control See display Recovery displays during recovery time from Sleep to Wake and from Leave to Return Mon Wake 5 W 5AM Recovery System 55 Room O Heat f Fan Auto M20895 After installation or new schedule programming your thermostat learns from experience Each day it checks how closely it hit the recovery target for example 70 at 6 00 AM and ...

Page 75: ...style the construction of your home and your heating and cooling system Optimum Comfort and Energy Savings In Fig 3 Adaptive Intelligent Recovery control starts to recover at 5 00 AM and reaches the comfort temperature of 68 at 6 30 AM Recovery time varies with the starting temperature and the comfort temperature you choose 1 69 1538 ...

Page 76: ...ROM ENERGY SAVINGS TIME COMFORT PERIOD THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON A IF In Recovery IS DISPLAYED PRESS TO SEE THE COMFORT SETPOINT M1947J Fig 3 Explanation of Adaptive Intelligent Recovery control 69 1538 42 ...

Page 77: ... wallplate mount and latch the thermostat on the wallplate Check if the circuit breaker is tripped reset the circuit breaker Check if the fuse at the fuse box is blown replace the fuse Check if System switch at equipment is in the Off position set to On position Check if batteries are correctly installed be sure they are fresh and installed correctly Replace them if necessary 43 69 1538 ...

Page 78: ...ction Temperature setting does not change Example cannot set the heating higher or the cooling lower The upper or lower temperature limits were reached Check that the temperature setpoints are Heating 40 to 90 4 5 to 32 C Cooling 45 to 99 7 to 37 C 69 1538 44 ...

Page 79: ... power to thermostat press and hold Run Program Check that setpoint is above room System selection is not set temperature to Heat Check if circuit breaker is tripped reset circuit breaker Heating setpoint is below Check if fuse at fuse box is blown room temperature replace fuse Check if System switch at equipment is in Off position set to On position Wait five minutes for System to respond thermos...

Page 80: ... power to thermostat press and hold Run Program Check that setpoint is below room System selection is not set temperature to Cool Check if circuit breaker is tripped reset circuit breaker Cooling setpoint is above Check if fuse at fuse box is blown room temperature replace fuse Check if System switch at equipment is in Off position set to On position Wait five minutes for System to respond thermos...

Page 81: ...e fan when the equipment has reached the preset time or temperature Wait a minute after seeing the S or and then check the registers Heat Pump Fault Monitor LED is lighted The heat pump signaled the thermostat to indicate a problem Move the System switch to Em Ht setting heat pump only See Heat pump Operating Instructions or call your local heat pump dealer or Energy Utility for assistance 47 69 1...

Page 82: ...cel press and hold Run Program for three seconds until DONE is displayed If PrE does not display contact your local heating contractor or Energy Utility Outdoor temperature is not displayed or is incorrect Installer did not activate this option Outdoor sensor is connected incorrectly Filter expired Contact installer or service technician Press i key twice for outdoor temperature when filter expira...

Page 83: ...y for assistance Heat or cool turns on before programmed time Adaptive Intelligent Recovery control is on Adaptive Intelligent Recovery control brings the heat or cool on early to meet the temperature set for the programmed period See Adaptive Intelligent Recovery control section To disable Adaptive Intelligent Recovery control contact you local Heating and Air Conditioning contractor 49 69 1538 ...

Page 84: ... the product is defective or malfunctions Honeywell shall repair or replace it at Honeywell s option within a reasonable period of time If the product is defective i return it with a bill of sale or other dated proof of purchase to the retailer where you purchased it or ii package it carefully along with proof of purchase including date of purchase and a short description of the malfunction and ma...

Page 85: ... h ic h o c c u rre d w h ile th e p ro d u c t w a s in the p o sse ssio n o f a co n su m e r Honeywell s sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IMPLIED O...

Page 86: ... 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 our Honeywell Customer Relations 1985 Douglas Drive North Golden Valley MN 55422 In Canada write Retail Products ON15 02H Honey...

Page 87: ...g this guide if you have any questions about the operation of your thermostat please visit the Honeywell website at www honeywell com yourhome For service contact your Installer or Energy Utility company or service provider ii 69 1538 ...

Page 88: ...al Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North Golden Valley MN 55422 35 Dynamic Drive Scarborough Ontario M1V 4Z9 69 1538 G H 04 03 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers www honeywell com yourhome ...

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Honeywell EnergyPro T8665C, Owner'S Manual, Page: 19 / 88

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