T8665A Chronotherm®IV Deluxe Programmable Wireless Thermostat
Contents
1. SET CURRENT OR PROGRAM DAY Daylight Time SET SLEEP TIMES AND SETPOINTS Ji ae SELECT FAN j I OPERATION SELECT SYSTEM CHANGE BETWEEN OPERATION DAYLIGHT SAVINGS Sane Te AND STANDARD TIME COPY ONE PROGRAMMED DECREASE TIME SETTING OR CHANGE BETWEEN DAY TO ANOTHER DAY SCROLL BACKWARD THROUGH HEATING AND COOLING SETPOINTS Mantes INSTALLER SETUP AND SYSTEM TEST Fig 4 T8665A key locations and descriptions Setting up T8665A to Send Signal to W8665A E Receiver Module The T8665A Thermostat must be set up to send signals to the W8665 Receiver Module Use the W8665A Receiver for single zone applications Use the W8665E RF Zone Panel for up to three T8665A Thermostats for multizone applications Single Zone Applications one T8665A one W8665A 1 Place the Zone 1 DIP switch on the W8665A Receiver to the On position NOTE Observe that the Zone 1 LED on the W8665 flashes 2 Press the thermostat Fan key to the On position The receiver accepts the message stores identity and then stops flashing the Zone 1 LED The ther mostat is now set up to send signals the W8665A Receiver NOTE The word On and a fan blade appear in the thermostat display to indicate the thermostat is calling for the fan to turn on 3 Set the System and Fan keys to the desired loca tions NOTE Atany time if you want to stop the thermostat from sending signals to the W8665 Receiver simply2. Thermostat backlight appears dim Backlight may fade over the life of the batteries Wait unit Replace Battery indicator is illuminated and replace batteries Replace batteries now 69 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT FCCID CFS8DLS800STAT CANADA 1748A12111 This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation FEDERAL COMMUNICATIONS COMMISSION FCC STATEMENT This equipment has been tested to FCC requirements and has been found acceptable for use The FCC requires the following statement for your information This equipment generates and uses radio frequency energy and if not installed and used properly that is in strict accordance wih the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television rece
3. M13426 Fig 5 Zone stickers included with T8665A Thermostat SETTINGS System and Fan Settings The system default setting is Heat and the fan default setting is Auto Use the System and Fan keys to change the settings See Fig 6 The fan settings can be set for each program period individually The system selection is for ail the program periods System settings control the thermostat operation as follows Heat The thermostat controls the heating Off Both the heating and cooling are off Cool The thermostat controls the cooling Auto The thermostat automatically changes between heating and cooling operation depending on the indoor temperature Fan settings control the system fan as follows On Fan operates continuously Auto Fan operates with equipment 69 1535 3 Fan M14625 Fig 6 Thermostat System and Fan key locations NOTE Always press the keys with your fingertip or sim ilar blunt tool Sharp instruments like a pen or pencil point can damage the keyboard Programmed Temperature Settings Refer to Tabie 2 for the default program If the daytime energy savings period is not used press the period key Leave or Return until the time is blank The fan setting feature is available on select thermostat models See Owner s Guide for compiete instructions on changing the program Table 2 Default Program Settings Heat Cool Fan Period Time Setpoint Setpoint Setting
4. Wake 6 00 70 F 78 F Auto AM 21 C 25 5 C Leave 8 00 62 F 85 F Auto AM 16 5 C 29 5 C Return 6 00 70 F 78 F Auto PM 24 C 25 5 C Sleep 10 00 62 F 82 F Auto PM 16 5 C 28 C T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT INSTALLER SETUP NOTE For most applications the thermostat factory settings do not need to be changed Review the factory default settings in Table 3 and if no changes are necessary go to the Installer Self Test section The Installer Setup is used to customize the thermostat to specific systems Some of the options include temperature display and system changeover Installer Setup numbers are listed in Table 3 The table includes all the configuration options and the factory settings for the T8665 A combination of key presses are required to use the installer Setup feature To enter the Installer Setup press and hold the Information i key with the increase A and decrease Y keys until the first number is displayed All display segments appear for approximately three seconds before the number is displayed See Fig 7 and 8 To advance to the next Installer Setup press the Time A key To change a setting use the increase A or decrease v key To scrol the Installer Setup numbers backward press the Time V key To exit the Installer Setup press Run Program Wait SERENE EE Temporary Seting en Re
5. 2 Press lower edge of case to close and latch NOTE To remove the thermostat from the wall first pull out at the bottom of the thermostat remove top last 11 5 METERS A ENGAGE TABS AT TOP OF Minis THERMOSTAT AND WALLPLATE Fig 1 Typical thermostat location WALL B PRESS LOWER EDGE OF CASE TO LATCH M14828 Fig 3 Mounting thermostat on wallplate G MOUNTING tap HOLES NSL MOUNTING SCREWS M20592 Fig 2 Mounting the waliplate 69 1535 3 2 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Using Thermostat Keys The thermostat keys are used to set current day and time program times and setpoints for heating and cooling temporarily override program temperatures display present setting configure installer Setup check self test set the system operation set the fan operation See Fig 4 for key locations INCREASE TIME SETTING SET WAKE TIMES SET LEAVE TIMES SET RETURN TIMES INCREASE TEMPERATURE OR SCROLL FORWARD AND SETPOINTS AND SETPOINTS AND SETPOINTS SETTING OR SCROLL THROUGH INSTALLER SETUP FORWARD THROUGH AND SYSTEM TEST INSTALLER SETUP OPTIONS r X DECREASE TEMPERATURE SET CURRENT Al SETTING OR SCROLL RATANDINME BACKWARD THROUGH Z INSTALLER SETUP OPTIONS RETURN TO a DISPLAY INFORMATION NORMAL SUCH AS PRESENT OPERATIONS SETTINGS ENTER INDEFINITE OR TIMED HOLD MODE
6. 19 Heating equipment can be turned on and off 30 39 Cooling equipment can be turned on and off 40 49 Fan equipment can be turned on and off 60 0 to Keyboard keys test 60 19 70 79 Thermostat information including date code and software versions are displayed Wail SSWeiie SASEA Temporary Setting Recovery STE PTE ITE TE AU PP O Holdfor pa aie Met ab li al We z System Em Heat Cool LIS k ae Fiter f3 Days m H bade Fri Si Sun Repl Batt Room Outdoor r as Wake Leave Return Sleep DST Y Heat Cool A Auto M34559 Fig 9 LCD segments display M14612 Fig 10 Test number display Refer to Table 5 for the instructions and description of the specific tests NOTE Press Time A to advance to the next test and press Time V to go back to the previous test Press Run Program to exit the system test Table 5 Installer System Test Options Key to Press Test Number Description Heating Equipment System Test Time 10 Enter heating equipment system test A 11 Heat comes on When Installer Setup number 2 is 1 the system fan is also energized v 12 Heat and system fan turn off Cooling Equipment System Test Time 30 Change from heating to cooling equipment system test A 31 Cool and system fan come on v 30 Cool and system fan turn of Fan Equipment System Test Time 40 Change from cooling to fan equipment system test A 41 Fan comes on v 40 Fan t
7. Honeywell 6 3 All Rights Reserved T8665 System Changeover System Selection Fan Selection Comments A Heai Cool Automatic Heat Off Cool Auto On Auto System and fan selections are entered at keyboard Location install the thermostat about 5 ft 1 5m above the floor in an area with good air circulation at average temperature See Fig 1 Do not install the thermostat where it can be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys unheated uncooled areas such as an outside wail behind the thermostat Wallplate Installation The thermostat can be mounted horizontally on the wall 1 Position and level the wallpiate for appearance only The thermostat functions correctly even when not level 2 Use a pencil to mark the mounting holes See Fig 2 3 Remove the waliplate from the wall and drill two 3 16 in holes in the wall if drywall as marked For firmer material such as plaster drill two 7 32 in holes 4 Gently tap anchors provided into the drilled holes until flush with the wall Position the wallplate over the holes Loosely insert the mounting screws into the holes Tighten the mounting screws 69 1535 3 Noo T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Mounting Thermostat 1 Engage tabs at the top of the thermostat and wall plate See Fig 3
8. one hour increments M14621 If the current time is Daylight Savings Time press Daylight Time until DST is displayed 69 1535 3 M14623 Viewing or Resetting Timer Settings When the thermostat activates a timer the thermostat flashes Filter until the timer resets 1 Rest the timer by pressing the i key until the expired time is displayed M20243 2 Press the Time amp key to reset the timer Fiter M20244 3 Press the Run Program key NOTE You can view the number of days remaining at any time by pressing the i key three or four times If more than one timer is active all active timers show sequentially when pressing the i key several times T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT INSTALLER SYSTEM TEST Use the Installer System Test to check the thermostat operation Refer to Table 4 for a list of the available Installer System Tests CAUTION Equipment Damage Hazard Compressor damage can result if compressor is cycled too quickly Be aware that compressor minimum off time is bypassed during the installer System Test To start the system test 1 Press and hold increase A and decrease Wat the same time until 10 appears 2 Observe ali segments of the display are displayed before the 10 appears See Fig 9 and 10 Table 4 Tests Available in Installer System Test Test Number System Test Description 10
9. turn the DIP switch to the Off position Follow the instructions in steps above to set up the thermostat again to send signals to the W8665A Receiver Muitizone Applications Up to three T8665A one W8665E IMPORTANT The thermostats must be set up one zone at a time to ensure a unique address is used for each zone 1 Place the Zone 1 DIP switch on the W8665E Receiver to the On position NOTE Observe that the Zone 1 LED on the W8665 flashes 2 Press the thermostat Fan key to the On position The Receiver accepts the message stores the identity of that zone and stops flashing the Zone 1 LED The thermostat is now set up to send signals to Zone 1 of the W8665E Receiver NOTE The word On and a fan biade x appear in the thermostat display to indicate the thermostat is calling for the fan to turn on 3 Set the System and Fan keys to the desired loca tions NOTE At any time if you want to stop the thermostat from sending signals to the W8665 Receiver simply turn the DIP switch to the Off position Follow the instructions in steps above to set up the thermostat again to send signals to the W8665E Receiver 4 Repeat steps 1 3 for zones two and three 69 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 5 Attach the zone number stickers included with the thermostat onto the thermostat case on the inside of the thermostat cover See Fig 5 Place one fabel inside each thermostat door
10. Honeywell T8665A Chronotherm IV Deluxe Programmable APPLICATION The T8665 Chronotherm IV Wireless Thermostat provides electronic control of 24 Vac heating and cooling systems It must be used with a W8665 Receiver Wireless Thermostat INSTALLATION INSTRUCTIONS Module Refer to Table 1 for a general description of the thermostat The T8665A Thermostats are battery powered Table 1 T8665A Thermostat Description MERCURY NOTICE if this control is replacing a control that contains mercury in a sealed tube do not place your old control in the trash Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat INSTALLATION Accessory Required Not Included Select one of the receiver modules for your application W8665A Receiver Module RM for single zone applications W8665E RF Zone Panel for up to three zones When Installing this Product 1 Read these instructions carefully Failure to follow the instructions can damage the product or cause a hazardous condition 2 Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service technician 4 After completing installation use these instructions to check out the product operation U S Registered Trademark r Copyright 2002
11. covery ELITE ETE AM I aD vic Ott a Holdfor ph Juf H JA a A Fiter KR ETETE Days Mon Tue Wed Thu Fri Sat Sun Repl Batt Room Outdoor r a on Wake Leave Return Sleep DST WHeat Coola Auto M14559 Fig 7 Display of all LCD segments INSTALLER SETUP FACTORY SETTING OR OTHER NUMBER DISPLAY CHOICE DISPLAY COLUMN 3 COLUMN 2 OF TABLE 3 OR 5 OF TABLE 3 M14618 Fig 8 Display of installer Setup number and settings CAUTION Equipment Damage Hazard Electric heat and heat pump systems must run with fan Configure to 1 in Installer Setup number 2 to prevent equipment damage IMPORTANT Only configured numbers are shown on the device For example If thermostat does not have a system key Installer Setup Number 12 will not display Review Table 3 factory settings and mark any desired changes in the Actual Settings column When Installer Setup is com plete review the settings to confirm they Mat thew system 69 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Table 3 Thermostat Installer Setup Options Installer Setup Other Choices between cails for the compressor Number Factory Setting Press A or YW key to change Press Time A key to Actual Select change Display Description Display Description Setting Not used 1 Fan operation 2 0 Conventional 1 Heat pump or electr
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13. ic heat applications where applications where equipment controls thermostat controis fan fan operation in heat operation in heat mode mode Not used 3 Heating cycle 4 6 6 6 cph used for 1 30r9 1 1 cph used for radiant rate conventional heat floor heat gravity system 3 3 cph used for hot water systems or high efficiency furnaces 9 9 cph used for electric heat systems Not used 5 thru 71 System setting 12 1 Manual changeover 0 or 2 O0 Auto changeover adjustment 2 Auto only Adaptive 13 i Adaptive Intelligent 1 Conventional recovery Intelligent Recovery control system starts recovery at Recovery is activated system programmed time control starts early so setpoint is reached by start of program period Degree 14 0 Temperature is 1 Temperature is displayed temperature displayed in F in C display Not used 15 Clock format 16 0 12 hour clock format 1 24 hour clock format Not used 17 and 18 Extended fan 19 0 No extended fan 1 Fan operation is extended operation in operation after the 90 seconds after the call heating call for heat ends for heat ends Extended fan 20 0 No extended fan 1 Fan operation is extended operation in operation after the 90 seconds after the call cooling call for cool ends for cool ends Not used 21 thru 29 Deadband 30 3 Heating and cooling 4 thru 10 Heating and cooling setpoints ca
14. lay Symptom Possible Cause Action Display does not Thermostat is not being Check if batteries are present and installed correctly come on powered If batteries are present and installed correctly replace thermo stat Temperature Room temperature display Enter Installer Setup number 37 and reconfigure the display display is has been reconfigured incorrect Thermostat is configured Enter Installer Setup number 14 and reconfigure the display for F or C display Poor choice of thermostat Relocate the thermostat location Temperature The upper or lower Check the temperature setpoints settings donot temperature limits were Heating limits are 40 to 90 F 4 5 to 32 C change reached Cooling limits are 48 to 99 F 7 to 35 C Example The setpoint temperature Check Installer Setup numbers 34 and 35 and reconfigure the setpoint Cannot set the neti range stops were stops heating higher or configured the cooling lower Heating does not Thermostat is calling for Troubleshoot the W8665 Receiver Module come on heat flame icon is in Troubleshoot the heating equipment Thermostat is not calling for heat no flame icon is in display Raise heating setpoint above room temperature Check if the W8665 is set up to receive signals from this thermostat Set up W8665 to receive signals Thermostat minimum off time is activated Wait up to five minutes for the system to respond Sys
15. n be set setpoints can be set no no closer than 3 F cioser than the chosen 1 5 C value 4 4 F 2 C 5 S F 2 5 C 6 6 F 3 C 7 T F 3 5 C 8 8 F 4 C 9 9 F 4 5 C 10 10 F 5 C Not used 31 and 32 Minimum off 33 5 five minute Othru4 Minimum number of time for the minimum off time for minutes 0 thru 5 the compressor the compressor compressor will be off 69 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Table 3 Thermostat Installer Setup Options Continued Temperature 34 90 Highest setpoint 4010 89 Temperature range 1 F range stops in heating can be set increments heating heating to setpoint can be set to Temperature 35 45 Lowest setpoint 461099 Temperature range 1 F range stops in cooling can be set to increments cooling cooling setpoint can be set to Not used 36 Temperature 37 i No difference in 3 thru 1 Display adjusts to 1 F display displayed 3 higher than actual room adjustment temperature and temperature actual room 2 Display adjusts to 2 F temperature higher than actual room temperature 3 Display adjusts to 3 F higher than actual room temperature 1 Display adjusts to 1 F lower than actual room temperature 2 Display adjusts to 2 F lower than actual room temperature 3 Display adjusts to 3 F lower than actual room temperature Furnace air 43 2 30 day
16. ption which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures If using an indoor antenna have a quality outdoor antenna installed Reorient the receiving antenna until interference is reduced or eliminated Move the radio or television receiver away from the receiver control Move the antenna leads away from any wire runs to the receiver control Piug the receiver control into a different outlet so that it and the radio or television receiver are on different branch circuits if necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user or installer may find the following booklet prepared by the Federal Communications Commission helpful Interference Handbook This booklet is available under Stock No 004 000 00450 7 from the US Government Printing Office Washington DC 20402 The user shail not make any changes or modifications to the equipment unless authorized by the Installation instructions or User s Manual Unauthorized changes or modifications could void the user s authority to operate the equipment Honeywell Automation and Control Solutions Honeywell Honeywell Limited Honeywell Limit e 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario MIV 4Z9 69 1535 3 GH Rev 11 02 Printed in USA www honeywell com your
17. s 0 1 3 4 O Off filter timer System run time 1 10 days pushbutton 3 60 days System keys 4 120 days Time is counted when heat coo or fan is running Humidifier pad 44 0 Off 1 2 3 1 90 days monitor 2 180 days 3 365 days Time is counted by calendar days in heat mode Ultraviolet air 45 0 Off 1 1 365 days treatment UV Time is counted by system lamp calendar days in any monitor mode a Number 2 must be set to 1 to extend fan operation IMPORTANT Review the settings to confirm they match the system Press Run Program to exit the Installer Setup The thermostat has saved the linstaller Setup changes and initiated a reset to operate using the new settings Be sure to set the cur rent day and time immediately f 69 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Setting Current Day and Time 1 Press Set Current Day Time NOTE On initial powerup or after an extended power loss 1 00 pm flashes on the display until a key is pressed a EE i Set Current f 5 Day Time Men ieee A Daylight Time i Ce M14622 M14619 2 Press Day untif the current day is displayed NOTE Sun Sunday Mon Monday Tue Tuesday Wed Wednesday Thu Thursday Fri Friday Sat Saturday M14620 3 Press Time A or Time Y until the current time is displayed NOTE Tapping Set Current Day Time changes the time in
18. tem selection is not set to Heat Set system selection to Heat Heating setpoint is below room temperature Check heating setpoint Set heating setpoint to desired temperature Cooling does not Thermostat minimum off Wait up to five minutes for the system to respond heat x cool is displayed butno warm or cool air is coming from the registers should be set for 1 electric heat come on time is activated Enter Installer Setup number 33 Reconfigure minimum off time if required System selection is not set Set system selection to Cool to Cool Cool setpoint is above Check cooling setpoint Set cooling setpoint to desired temperature room temperature Thermostat is calling for Troubleshoot cooling equipment cool snowflake is in Troubleshoot W8665 Receiver Module display Thermostat is not calling Check if the W8665 is set up to receive signals from the thermostat for coal no snowflake icon Set up W8665 to receive signals is in display System on Fan operation set for 0 Enter Installer Setup number 2 and reconfigure the fan operation indicator conventional heat when it Conventional heating equipment turns on the fan when the furnace has warmed up to a setpoint Wait a minute after seeing the on indicator and then check the registers Heating or cooling equipment is not operating Verify operation of heating or cooling equipment in self test
19. urns off Key Operation System Test Time 60 2 Change from fan to key operation system test NOTE Press any key and the displayed number will change Press Time W to go to the previous testand Time A to go to the next test The Run Program key will not exit this test Press Time A or Time W and then the Run Program key to exit 9 68 1535 3 T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Thermostat Information 1 Press the Time key to access the thermostat infor mation M14613 2 Press the increase A key to display the produc tion date code The first two large digits are the month and the third digit is the last digit of the year example 027 February 1997 m ma ttd 4 M14614 3 Press the increase key A again to display the soft ware identification code Example 02 software ID code 2 69 1535 3 M14615 4 Press the increase key A again to display the software revision number exampie 001 revision number 1 5 Press the increase A key again to display the EEPROM identification code example 314 EEPROM ID 314 tee St oth M14617 6 Press the Run Program key to exit the system test The system test times out after four minutes with out any key presses T8665A CHRONOTHERM IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT TROUBLESHOOTING GUIDE For troubleshooting see Table 6 Table 6 Troubleshooting Guide disp
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