Honeywell CHRONOTHERM T8600D User's Manual
Contents
1. T8600D1061 T8600D2028 Separate O amp B terminals duel fuel continued 21 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 14 Thermostat Cross Reference Information continued TRADELINE Model Number Description Replacement T8601A One stage conventional heat thermostat powered direct from 24 Vac transformer T8601A1017 Canadian TRADELINE thermostat T8601D2019 Heat cool model can be used for heat Honeywell logo system switch none only system selection Heat Off Cool fan switch none degree C Auto configure for C in Installer Setup 14 Premier White color T8601B One stage conventional heat with fan thermostat powered direct from 24 Vac transformer T8601B1007 TRADELINE thermostat Honeywell logo T8601D2019 Heat cool model can be used for heat system switch none fan only system selection Heat Off Cool switch ON AUTO Auto jumper R to Rc for fan control Premier White color T8601C One stage heat and one stage cool conventional thermostat powered direct from 24 Vac transformer system switch HEAT OFF COOL fan switch ON AUTO O and B terminals T8601C1003 TRADELINE thermostat Honeywell logo T8601D2019 Jumper R to Rc Premier White color T8601C1013 Canadian TRADELINE thermostat T8601D2019 Configure for C in Installer Setup 14 Honeywell logo degree C jumper R to Rc Premier White color T8601C1021 T8601D2019 Jumper R to Re Premier Whit2. White color changeover in Installer Setup 12 jumper R to Rc T8601D1078 Amana logo Premier White color T8601D2019 Separate O amp B terminals configure part no P1213701F changeover in Installer Setup 12 jumper R to Rc continued 68 0164 1 22 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 14 Thermostat Cross Reference Information continued TRADELINE Model Number Description Replacement T8602A One stage heat conventional thermostat battery powered system switch none fan switch none T8602A1008 TRADELINE thermostat Honeywell logo T8602D2000 Heat cool model can be used for heat only separate O amp B terminals system selection Heat Off Cool Auto fan selection Auto On T8602B One stage heat conventional with fan thermostat battery powered system switch none fan switch ON AUTO T8602B1006 TRADELINE thermostat Honeywell logo T8602D2000 Heat cool model can be used for heat only separate O amp B terminals system selection Heat Off Cool Auto fan selection Auto On jumper R to Rc for fan operation T8602B1014 TRADELINE thermostat Honeywell logo T8602D2000 Heat cool model can be used for heat Premier White color only separate O amp B terminals system selection Heat Off Cool Auto fan selection Auto On jumper R to Rc for fan operation taupe color T8602C One stage heat and one stage cool thermostat battery powered system switch HE
3. 4 5 C to 32 C Cooling 45 F to 99 F 7 C to 35 C Differential 3 F 1 5 C Default Settings see Table 3 Minimum Stage Operation Time Minimum Off Heat and Cool factory setting 5 minutes option 0 to 5 minutes Humidity Ratings 5 to 90 RH noncondensing Clock Accuracy 1 minute per month Table 1 Thermostat Features System Fan System Changeover Selection Selection Comments T8600 powered by either the heating or cooling system D _ Heat Cool Automatic Heat Off Cool Auto System and fan selections are done by keyboard T8601 powered by common wire to supply power T8602 powered by batteries D Heat Cool Automatic Heat Off Cool Auto System and fan selections are done by keyboard D _ Heat Cool Automatic Heat Off Cool Auto System and fan selections are done by keyboard ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE wholesaler or distributor refer to the TRADELINE Catalog or price sheets for complete ordering number If you have additional questions need further information or would like to comment on our products or services please write or phone 1 Your local Home and Building Control Sales Office check white pages of your phone directory 2 Home and Building Control Customer Logistics Honeywell Inc 1885 Douglas Drive North Minneapolis Minnesota 55422 4386 In Canada Honeywell Limited
4. Pressing the Daylight Time Key more than once within a five minute period will scroll you through various time options Example one hour earlier or later with or without DST Pressing the Daylight Time Key six times in a five minute period will return you to your original settings Daylight Time Displaying the Outdoor Temperature If your thermostat is equipped with an outdoor sensor you can check the temperature at the sensor by pressing H once Fan Auto M10341 m M10342 OPERATION P l Control The thermostat microprocessor based control requires that the user understands temperature control and thermostat performance A conventional electromechanical or electronic thermostat does not control temperature precisely at setpoint Typically there is an offset droop in the control point as the system load changes This is a phenomenon that most people in the industry know and accept Many factors contribute to offset including switch differential thermal lag overshoot cycle rates and system load The thermostat microprocessor simultaneously gathers compares and computes data Using this data it controls a wide variety of functions The special proprietary algorithm program in the thermostat eliminates the factors causing offset This makes temperature control more accurate than the conventional electromechanical or electronic thermostats The temperature control algorithm is called proportional plus in
5. Friday zr 165O Saturday imr eroi T 25 50 SZF 6s ser eec continued 68 0164 1 12 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 9 Default Time Setpoints and Fan Settings continued et 6 00 PM 70 F ar 78 F 10 00 PM 62 F 16 5 C Fer 2 Press Day until the desired day is displayed M10318 3 Press Time or Time V until the desired Wake time is displayed NOTE The program times are in fifteen minute intervals Example 8 00 8 15 8 30 Time M10319 4 Press increase A or decrease W key until the desired Wake temperature is displayed NOTE The setpoint temperature range is 40 to 90 F 7 to 31 C for heating and 45 to 99 F 9 to 37 C for cooling Setting 53n 5 B M10320 NOTE Press Fan to modify fan operation Auto means the fan will run only when the heating or cooling equipment is operating On means the fan will run continuously for the entire period 5 Press Heat Cool Settings to switch to other system temperature setpoint NOTE The program times are the same for both heating and cooling Heat Cool Settings M10321 6 Press increase A or decrease W key until the desired temperature setpoint is displayed M10322 7 Press Leave Return or Sleep and repeat steps 3 4 5 and 5 for programming the rest of the day The first day is now programmed IMPORTANT Repeat s
6. Honeywell Limit e 35 Dynamic Drive Scarborough Ontario M1V 4Z9 International Sales and Service Offices in all principal cities of the world Manufacturing in Australia Canada Finland France Germany Japan Mexico Netherlands Spain Taiwan United Kingdom U S A 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 2 Maximum Amps at 30 Vac Finish Running A Inrush A Taupe color Dimensions The thermostat mounts on a wallplate The wallplate mounts Table 3 Default Setpoints horizontally on a wall or outlet box with two no 6 x 32 screws included Heat Cool Period Time Setpoint Setpoint Accessories C7089B Outdoor Temperature Sensors 69 1020 Wake 6 00AM 70 F 78 F Auto Ta N N 21 C 25 5 C Eag Universal Versaguard Thermostat guards Leave 8 00 AM 62 F 85 F Auto ee sera en eo RECYCLING NOTICE n n If this control is replacing a control that contains 6 00 PM dr ar mercury in a sealed tube do not place your old 25 5 C control in the trash Sleep 10 00 PM 62 F 82 F Auto 16 5 C 28 C Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat 3 5 8 92 2 3 4 70 3 8 10 gt l lt 1 9 16 40 a 6 1 16 154 1 2 13 3 3 4 IO 95
7. O00 Honeywell M10359 Fig 1 Dimensions of thermostat in in mm 3 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS INSTALLATION 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 Location Install the thermostat about 5 ft 1 5m above the floor in an area with good air circulation at average temperature See Fig 2 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 wall behind the thermostat Wallplate Installation The thermostat can be mounted horizontally on the wall or on a 2 in x 4 in wiring box Position wallplate horizontally on the wall or on a 2 in x 4 in wiring box 1 5 METERS 1 Position and level the wallplate for appearance only The thermostat will function properly even when not level 2 Use a pencil to mark the mounting holes See Fi
8. most applications the thermostat factory settings will not need to be changed Review the factory settings in Table 6 and if no changes are necessary go to the Installer System Test section The Installer Setup is used to customize the thermostat to specific systems Some of the options include temperature display changeover and outdoor temperature display Installer Setup numbers are listed in Table 6 The table includes all the configuration options and the factory settings for the thermostat 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 W keys until the first number is displayed All display segments appear for approximately three seconds before the number is displayed See Fig 8 and 9 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 scroll the Installer Setup numbers backwards press the Time key To exit the Installer Setup press Run Program ERIT TEN Start Time APANE Temporary Setting Enrg Eman tC lav eran Ll i i iv u 1 CI ilo S Ll nin u foo W Heat Cool A Outdoor In pec Auto Repl Batt Em Y Heat OffCool amp Auto Wait OA gt On Auto M10345 Fig 8 Display of all the segments of the LCD MonTueWedThuFriSatSun ub co dise M und INSTALLER
9. 00C1089 Texfan logo conventional T8600D2028 Separate O amp B terminals duel fuel T8600C1097 Glowcore logo conventional part no T8600D2028 Separate O amp B terminals duel fuel THC 3 T8600C1105 York logo conventional part no 025 27653 T8600D2028 Separate O amp B terminals and 2ET0770224A T8600C1113 Canadian York thermostat conventional T8600D2028 Separate O amp B terminals configure for degree C C in Installer Setup 14 duel fuel T8600C1 121 Arcoaire logo conventional part no T8600D2028 Separate O amp B terminals duel fuel 1506 745 T8600C1147 Trane logo conventional part no T8600D2028 Separate O amp B terminals duel fuel TAYSTAT300 jumper R to Rc T8600C1154 American Standard logo conventional T8600D2028 Separate O amp B terminals duel fuel part no ASYSTAT600 jumper R to Rc T8600C1162 SUPER TRADELINE thermostat T8600D2028 Jumper R to Rc Honeywell logo duel fuel fan control O and B terminals continued 68 0164 1 20 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 14 Thermostat Cross Reference Information continued TRADELINE Model Number Description Replacement T8600C1170 Carrier thermostat conventional part no T8600D2028 Separate O amp B terminals duel fuel HH07AX006 jumper R to Rc T8600C1188 Carrier thermostat conventional part no T8600D2028 Separate O amp B terminals duel fuel HH641 101 jumper R to Rc T8600C119
10. 6 Canadian TRADELINE thermostat T8600D2028 Separate O amp B terminals configure for Honeywell logo Premier White color C in Installer Setup 14 duel fuel conventional degree C jumper R to Rc T8600C1204 Canadian Lennox thermostat conventional T8600D2028 Separate O amp B terminals configure for degree C C in Installer Setup 14 duel fuel jumper R to Rc T8600C1212 SUPER TRADELINE thermostat T8600D2028 Jumper R to Rc taupe color Honeywell logo duel fuel fan control O and B terminals T8600C1220 Servel logo Premier White color T8600D2028 Separate O amp B terminals duel fuel conventional Robur part no 15471 82 taupe color T8600C1238 ICP logo Premier White color duel fuel T8600D2028 Jumper R to Rc taupe color fan control O and B terminals part no HQ1149371HW T8600C1246 ICP logo Premier White color duel fuel T8600D2028 Jumper R to Rc taupe color fan control O and B terminals part no HQ1149372HW T8600C1253 Consolidated Industries logo Premier T8600D2028 Separate O amp B terminals duel fuel White color conventional part no taupe color 412360 T8600C1279 Canadian TRADELINE French T8600D2028 English only keyboard separate O amp B thermostat conventional terminals duel fuel T8600D One stage heat and one stage cool conventional thermostat system powered automatic changeover system switch HEAT OFF COOL AUTO fan switch ON AUTO T8600D1004 TRADELINE thermostat H
11. AT OFF COOL fan switch ON AUTO T8602C1004 TRADELINE thermostat Honeywell logo T8602D2000 Separate O amp B terminals jumper R to Re T8602C1012 Amana logo conventional part no none T8602D2000 Separate O amp B terminals jumper R to Rc T8602C1020 Rheem logo conventional part no none T8602D2000 Separate O amp B terminals jumper R to Rc T8602C1046 SUPER TRADELINE thermostat T8602D2000 Honeywell logo duel fuel fan control O and B terminals T8602C1061 Trol A Temp by Honeywell thermostat T8602C20514 Premier White color conventional O and B terminals T8602C1079 Trol A Temp by Honeywell thermostat T8602C20518 Premier White color conventional O and B terminals T8602C1095 SUPER TRADELINE thermostat T8602D2000 Taupe color Honeywell logo Premier White color duel fuel fan control O and B terminals T8602C1103 Canadian TRADELINE thermostat T8602D2000 Configure for C in Installer Setup 14 Honeywell logo duel fuel fan control degree C O and B terminals T8602C1129 Universal Parts logo Rheem part no T8602D2000 41 21615 05 conventional T8602C1137 ICP logo duel fuel fan control O and B T8602D2000 terminals part no HQ1149373HW T8602C1145 ICP logo Premier White color duel fuel T8602D2000 Taupe color fan control O and B terminals part no HQ1149374HW continued 23 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 14 T
12. Honeywell T8600D T8601D and T8602D Chronotherm IV Deluxe Programmable APPLICATION The T8600 T8601 and T8602 Chronotherm IV Deluxe Programmable Thermostats provide electronic control of 24 Vac single stage heating and cooling systems T8600 T8601 T8602 FEATURES AND BENEFITS Full seven day program capability different schedules and temperature setpoints may be selected for everyday to match the homeowner s flexible schedule Copy key makes programming easier and faster for the installer and homeowner Daylight Savings Time DST key for quick change in and out of Daylight Savings Time Models available with programmable fan operation for added homeowner comfort Easy temporary temperature setpoint changes for current period vacation hold 1 to 255 days or indefinite hold adds to the homeowner comfort and energy savings Frequently used keys are located by the Liquid Crystal Display LCD for quick and easy access to information Attractive styling complements any decor to the homeowner s delight Backlighting the large display makes the LCD very easy to read U S Registered Trademark Copyright 1997 Honeywell Inc e All Rights Reserved Thermostats PRODUCT DATA Models available with outdoor temperature sensor capability for homeowner convenience The sensor is also more accurate than a thermometer Configurable features allows one model to be used to replace many different mod
13. OUGH INSTALLER SETUP AND SYSTEM TEST M10405A Fig 6 Key locations and descriptions 68 0164 1 6 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 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 M15042 Fig 7 Thermostat System and Fan key locations NOTE Always press the keys with your fingertip or similar blunt tool Sharp instruments like a pen or pencil point can damage the keyboard Temperature Settings Refer to Table 5 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 Programming Section for complete instructions on changing the program Table 5 Default Program Settings Heat Cool Period Time Setpoint Setpoint 70 F Wake 6 00 AM 78 F Auto 21 C 25 5 C Leave 8 00 AM 62 F 85 F Auto 16 5 C 29 5 C 78 F Auto 25 5 C Return 6 00 PM 70 F 21 C Sleep 10 00 PM 62 F 82 F Auto 16 5 C 28 C INSTALLER SETUP NOTE For
14. PROGRAMMABLE THERMOSTATS Table 12 Troubleshooting Information continued Heating or cooling Heat or cool circuit is opening Add resistor in parallel with load or install interface relay come on up or becoming high momentarily and impedance shut off System on indicator Fan operation set for 0 Enter Installer Setup number 2 and reconfigure the fan operation flame heat conventional heat when it snowflake cool is should be set for 1 electric displayed but no heat warm or cool air is Conventional heating Wait a minute after seeing the on indicator and then check the registers coming from the equipment turns on the fan registers when the furnace has warmed up to a setpoint Heating or cooling equipment is Verify operation of heating or cooling equipment in self test not operating Outdoor Option not activated Enter Installer Setup number 24 and set to 1 Thermostat must have OT temperature not terminals and a C7089B1000 installed displayeda Outdoor Outdoor sensor is connected Refer to C7089B1000 installation instructions and check wiring between temperature incorrectly the thermostat and sensor display is incorrecta Replace sensor with C7089B1000 sensor a Available on select models CROSS REFERENCE All SUPER TRADELINE Chronotherm IV thermostats are Refer to Table 14 for thermostat cross referencing information different from the existing Chronotherm III devices as summarized in Tabl
15. RES MUST HAVE A SEPARATE CABLE FROM THE THERMOSTAT CABLE M10347 Fig 16 Typical hookup of T8600 or T8602 in heat and cool system with one transformer 68 0164 1 24 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS THERMOSTAT OUTDOOR TEMPERATURE SENSOR COOLING HEATING TRANSFORMER TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO R TERMINAL WHEN INSTALLED ON A ONE TRANSFORMER SYSTEM A CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS A AVAILABLE ON SELECT MODELS OT WIRES MUST HAVE A SEPARATE CABLE FROM THE THERMOSTAT CABLE A T8600D MODELS REQUIRE POWER TO R TERMINAL AT ALL TIMES M10348 Fig 17 Typical hookup of T8600 or T8602 in heat and cool system with two transformers THERMOSTAT TRANSFORMER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED Anor AVAILABLE ON A MODELS MT0357 Fig 18 Typical hookup of T8601 in heat only application THERMOSTAT O COMPRESSOR CONTACTOR OUTDOOR TEMPERATURE FAN HEAT RELAY DAMPER SENSOR TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS A AVAILABLE ON SELECT MODELS OT WIRES MUST HAVE A SEPARATE CABLE FROM THE THERMOSTAT CABLE Fig 19 Typical hookup of T8601 in heat and coo
16. SETUP FACTORY SETTING M10404 NUMBER DISPLAY OR OTHER CHOICE COLUMN 2 DISPLAY COLUMN 3 OF TABLE 6 OR 5 OF TABLE 6 Fig 9 Display of Installer Setup number and setting N CAUTION Heat pump and electric heat systems must be configured to 1 in Installer Setup number 2 to prevent equipment damage caused by the system running without the fan IMPORTANT Only configurable numbers are shown on the device Example If thermostat does not have a system key Installer Setup Number 12 will not be displayed Review Table 6 factory settings and mark any desired changes in the Actual Settings column When Installer Setup is complete review the settings to confirm that they match the system 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 6 Thermostat Installer Setup Options Installer Setup Number Press Other Choices Time key to Factory Setting Press A or V key to change Actual Muere ccu Luc 3p Fan operationa Conventional Heat pump or electric heat applications where applications where thermostat equipment controls fan controls fan operation in heat operation in heat mode mode LI D AR EZ WE ne DN Heating cycle 4 6 6 cph used for 1 3 or 9 1 1 cph used for radiant floor rate conventional heat heat gravity system 3 3 cph used for hot water systems or high efficiency furnaces 9 9 cph used for electric heat systems LII setting 12 Manual changeover J0 or 2 0 Auto ch
17. Time key to Factory Setting Press A or V key to change Actual Minimum off time 33 5 minute minimum off 0 thru 4 Minimum number of minutes 0 for the time for the compressor compressor thru 5 the compressor will be Temperature Highest setpoint 40 to 89 Other Choices compressor Temperature range 1 F increments heating setpoint off between calls for the range stops in Temperature range stops in heating can be set to Lowest setpoint 46 to 99 cooling can be set to can be set to Temperature range 1 F increments cooling setpoint can be set to No difference in displayed temperature and actual room temperature 1 Display adjusts to 1 F higher than actual room temperature 2 Display adjusts to 2 F 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 Temperature display adjustment a Number 2 must be set to 1 to extend fan operation IMPORTANT Review the settings to confirm that they match the system Press Run Program to exit the Installer Setup The thermostat has saved the Installer Setup changes and initiated a reset in order to operate with these new settings Be sure to set the current day and time immediately 2 Press Day until the c
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19. am Setting System and Fan 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 12 The fan settings can be set for each program period individually The system selection is for all 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 M15042 Fig 12 Thermostat System and Fan key locations Setting Temporary Fan Operation If your thermostat has a Fan key and this feature press Fan until the desired fan operation is selected This fan setting will be in effect until the next regularly scheduled period starts 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Using Daylight Savings Time Feature This feature allows you to change in and out of Daylight Savings Time with a key press When the Daylight Time Key is pressed in the fall the time will go back one hour In the spring the time will go ahead one hour and the display will show DST See Setting the Current Day and Time section for initial setting instructions NOTE
20. angeover ne 2 Fixed auto changeover Adaptive Intelligent Conventional recovery system Intelligent Recovery control is starts recovery at programmed Recovery activated system time starts early so setpoint is reached by start of program period Temperature is temperature displayed in F a CENT Ee Cn Clock format 1e fo 12 hour clock format 24 hour clock format Extended fan 19 No extended fan Fan operation is extended 90 operation in operation after the call seconds after the call for heat heating for heat ends ends Temperature is displayed in C Extended fan 20 No extended fan Fan operation is extended 90 operation in operation after the call seconds after the call for cool cooling for cool ends ends Outdoor No outdoor temperature temperature is display select displayed models to operate Outdoor temperature is Deadband 30 3 Heating and cooling 4 thru 10 Heating and cooling setpoints setpoints can be set can be set no closer than the no closer than 3 F chosen value 1 5 C 4 4 F 2 C 5 5 F 2 5 C 6 6 F 3 C 7 7 F 3 5 C 8 8 F 4 C 9 9 F 4 5 C 10 10 F 5 C displayed Needs a C7089B1000 Outdoor Sensor a Number 2 must be set to 1 to extend fan operation continued 68 0164 1 8 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 6 Thermostat Installer Setup Options continued Installer Setup Number Press j
21. ays Example 18 Hold will override the daily programs for 18 days M10337 Time M10338 3 Press Wake Leave Return or Sleep to select the period the program will start Example Return thermostat will stop the Hold at the Return period start time M10339 4 Press increase A or decrease W key to adjust the temperature setting if desired Example Heat 54 heating equipment will operate when the room temperature is below 54 F M10340 When the System is set for Auto select models both heat and cool settings are needed If the System is set for Heat only the Heat setpoint is needed or if Cool is selected only the Cool setpoint is needed 5 Press Heat Cool Settings to change between heat and cool settings 6 Press increase A or decrease W key to adjust the temperature setting if desired Example Cool 84 cooling equipment will operate when the room temperature is above 84 F NOTE In this example the thermostat uses the Hold setting for eighteen days and returns to the daily programs at the Return period start time The temperature settings are heating 54 F and cooling 84 F Only the heating temperature is used because the System is set for Heat The thermostat will use both the heating and cooling temperature settings when the System is set to Auto select models IMPORTANT If the Hold needs to be canceled before the designated time press Run Program to return to the progr
22. e color T8601C1039 Carrier logo part no HH641 104 T8601D2019 Jumper R to Rc Premier White color T8601C1047 New Construction thermostat Premier T8601D2019 Jumper R to Rc White color T8601C1054 Trol A Temp thermostat Premier White T8601D20278 Configure manual changeover in color Installer Setup12 replacement has Oc terminals T8601C1062 Trol A Temp by Honeywell logo T8601D20278 Configure manual changeover in Installer Setup12 replacement has Oc terminals Premier White color T8601D One stage heat and one stage cool conventional thermostat powered direct from 24 Vac transformer automatic changeover system switch HEAT OFF COOL AUTO fan switch ON AUTO T8601D101 1 Canadian TRADELINE thermostat T8601D2019 Separate O amp B terminals configure for Honeywell logo degree C C in Installer Setup 14 and changeover in 12 jumper R to Rc Premier White color T8601D1029 New Construction thermostat T8601D2019 Separate O amp B terminals configure changeover in Installer Setup 12 jumper R to Rc Premier White color T8601D1045 Trol A Temp by Honeywell thermostat T8601D20278 Separate O amp B terminals replacement Premier White color has Oc terminals T8601D1052 New Construction thermostat Premier T8601D2019 Separate O amp B terminals configure White color changeover in Installer Setup 12 jumper R to Rc T8601D1060 California Economizer logo Premier T8601D2019 Separate O amp B terminals configure
23. e 13 Table 13 Differences Between Chronotherm Ill Thermostats and Chronotherm IV Thermostats Chronotherm III Family Chronotherm IV Family 5 1 1 day programming 7 day programming Changeover Automatic or manual changeover models Automatic manual changeover selectable available Installer configuration Field settings made via screws on the back of Field settings made through the keyboard the thermostat System switching Mechanical switch Keyboard entry Mechanical switch Keyboard entry Beige or Premier White color Taupe or Premier White color 19 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 14 Thermostat Cross Reference Information TRADELINE Model Number Description Replacement T8600A One stage heat conventional thermostat system powered system switch none fan switch none T8600A1000 Honeywell logo T8600D2028 Heat cool model can be used for heat only system selection Heat Off Cool Auto duel fuel T8600A1018 Canadian TRADELINE thermostat T8600D2028 Heat cool model can be used for heat Honeywell logo degree C only system selection Heat Off Cool Auto configure for C in Installer Setup 14 duel fuel T8600A1034 Canadian TRADELINE thermostat T8600D2028 Heat cool model can be used for heat Honeywell logo Premier White color only system selection Heat Off Cool degree C Auto configure for C in Installer Setup 14 duel fuel T8600B One sta
24. e Installer Setup check System Test display outdoor temperature select models setthe system operation setthe fan operation See Fig 6 for the location of the keys 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 7 The fan settings can be set for each program NON period individually The system selection is for all the program periods Fig 5 Mounting thermostat on wallplate SET WAKE TIMES AND SETPOINTS INCREASE TEMPERATURE SET LEAVE TIMES SETTING OR SCROLL INCREASE TIME SETTING AND SETPOINTS FORWARD THROUGH OR SCROLL FORWARD INSTALLER SETUP OPTIONS THROUGH INSTALLER SETUP AND SYSTEM TEST SET RETURN TIMES AND SETPOINTS DECREASE TEMPERATURE SETTING OR SCROLL 7 BACKWARD THROUGH SET CURRENT INSTALLER SETUP OPTIONS DAY AND TIME RETURN TO NORMAL OPERATIONS ENTER a r C AA TI INDEFINITE B EH TIMES AND OR TIMED et Curren pm stiri Sleep SETPOINTS HOLD MODE SUL WE 11 SELECT FAN ON O Pego System Fan OPERATION v i2 DISPLAY INFORMATION SUCH AS PRESENT e SETTINGS AND OUTDOOR TEMPERATURE SET CURRENT OR Daylight PROGRAM DAY Fe SS a Nm SELECT SYSTEM CHANGE BETWEEN OPERATION DAYLIGHT SAVINGS CHANGE BETWEEN AND STANDARD TIME HEATING AND COOLING SETPOINTS COPY ONE PROGRAMMED DAY TO ANOTHER DAY DECREASE TIME SETTING OR SCROLL BACKWARD THR
25. ed 5 Press Run Program Setting Temporary Temperatures Changing Temperature Setting Until the Next Program Period Press increase A or decrease W key until the desired temperature setpoint is displayed NOTE f V or A appear under the temperature display it means that both the heating and cooling setpoints are being adjusted Tapping the key will change both the heat and cool setpoints by one degree Press i after the desired setpoint is reached to check the setpoints M10332 NOTE The temporary temperature setting is displayed for approximately 3 seconds The setting is canceled when the next period starts or when Run Program is pressed Changing Temperature Setting Indefinitely 1 Press Hold Temp M10333 2 Press increase A or decrease W key to change the setting if desired M10334 3 Press Heat Cool Settings to change between heat and cool settings M10335 4 Press increase A or decrease W key to adjust temperature settings M10336 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS NOTE The display changes from the setpoint to the room temperature after approximately 3 seconds 5 Press Run Program to cancel the Hold and to return to the program Changing Temperature Setting Until a Designated Day and Period 1 Press Hold Temp twice Hold Temp be 2 Press Time or Time V until the desired number of days is displayed 1 to 255 d
26. els less inventory no longer need to carry separate models to get these features For C temperature display Automatic or manual changeover Electric or conventional heat fan operation Adjustable heating cycle rate Minimum off time for cooling compressors and heat pumps protects the equipment and extends the equipment life e Easy installation setup and system test saves installer time and increases productivity Self test simplifies troubleshooting and saves time by overriding the time delays Adaptive Intelligent Recovery control brings the room temperature to temperature setpoint at the programmed time maximizing comfort and energy savings Setpoints are permanently held in memory no batteries used and retained during power outages for increased installer and homeowner convenience Power stealing hardwired and battery powered models available for virtually all equipment and application needs Universal Versaguard Thermostat guards available for added security Contents AppliCatiori jiy piy l k entretient e t De RR nn 1 T8600 T8601 T8602 Features and Benefits 1 Specifications ui Ray 03 tee eines erg dre ede eine eee 2 Ordering Information EE EEE Emek 2 InStallation scs deett kiriyeee da kan RA dk rcg etd dak 4 lulii ccu 4 DOUINGS seu antonio LM LS 6 Installer Setup iet ee tele IR eges 7 Installer Self Test 10 T
27. es that the comfort setting is achieved at the programmed time regardless of weather conditions Conventional recovery however starts recovery at the beginning of the programmed time period and uses the equipment to achieve the comfort settings as soon as possible 17 Adaptive Intelligent Recovery calculates the recovery ramp based on the number of degrees away from the desired setpoint previous equipment performance and weather history to initiate recovery at the optimal time to achieve the comfort setting at the desired time Once the recovery ramp is intersected the setpoint changes from the setback setpoint to the comfort setpoint This change snaps onthe equipment and runs the equipment until the setpoint is reached If the setpoint is reached too early or too late the ramp is adjusted for the next days recovery 70 F e SETPOINT TEMPERATURE ACTUAL TEMPERATURE WAKE SLEEP M6185A HEATING MODE Fig 14 Temperature change in recovery TROUBLESHOOTING GUIDE Refer to Table 12 for troubleshooting information 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Table 12 Troubleshooting Information Display will not Thermostat is not being Check for 24 Vac between R and C or W terminals come on powered If missing 24 Vac check if the circuit breaker is tripped reset the circuit breaker check if the system fuse is blown replace the fuse check if the p
28. g 3 3 Remove the wallplate from the wall and drill two 3 16 inch holes in the wall if drywall as marked For firmer material such as plaster drill two 7 32 inch holes Gently tap anchors provided into the drilled holes until flush with the wall 4 Position the wallplate over the holes pulling wires through the wiring opening 5 Loosely insert the mounting screws into the holes 6 Tighten mounting screws WIRING All wiring must comply with local electrical codes and ordinances Follow equipment manufacturer wiring instructions when available Refer to Fig 15 through 20 for typical hookups A letter code is located near each terminal for identification Refer to Table 4 for terminal designations N CAUTION Disconnect power before wiring to prevent electrical shock or equipment damage 1 Loosen the terminal screws on the wallplate and connect the system wires See Fig 4 i 5 FEET M10106 Fig 2 Typical location of thermostat 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS WALL WIRES THROUGH WALL WALL ANCHORS 2 N FOR STRAIGHT Tn INSERTION STRIP FOR WRAPAROUND INSERTION STRIP 5 16 IN 8 MM 7 16 IN 11 MM M4826 Fig 4 Proper wiring technique MOUNTING HOLES n Mounting Thermostat Wallplate MOUNTING SCREWS The thermostat mounts on the wallplate after they are installed 1 Engage tabs at the top of ther
29. ge heat and one stage cool conventional thermostat system powered T8600B1008 TRADELINE thermostat Honeywell logo T8600D2028 Heat cool model can be used for heat system switch HEAT OFF fan only system selection Heat Off Cool switch none Auto fan selection On Auto duel fuel no positive off T8600B1016 TRADELINE thermostat Honeywell logo T8600D2028 Heat cool model can be used for heat system switch none fan only system selection Heat Off Cool switch ON AUTO Auto duel fuel T8600C One stage heat and one stage cool thermostat system powered system switch HEAT OFF COOL fan switch ON AUTO T8600C1014 TRADELINE thermostat Honeywell logo T8600D2028 Separate O amp B terminals duel fuel conventional T8600C1030 Canadian TRADELINE thermostat T8600D2028 Configure for C in Installer Setup 14 Honeywell logo conventional degree C duel fuel jumper R to Re O and B terminals T8600C1048 York logo conventional part no T8600D2028 Separate O amp B terminals duel fuel 2ET07700124A T8600C1055 Canadian TRADELINE thermostat T8600D2028 Configure for C in Installer Setup 14 Honeywell logo conventional degree C duel fuel jumper R to Rc T8600C1063 Trane logo conventional part no T8600D2028 Separate O amp B terminals duel fuel THT0594 T8600C1071 Trane logo electric heat O and B T8600D2028 Configure for electric heat in Installer terminals part no THT0595 Setup 2 jumper R to Rc T86
30. hermostat Cross Reference Information continued TRADELINE Model Number Description Replacement T8602D One stage heat and one stage cool conventional thermostat battery powered automatic changeover T8602D1010 Trol A Temp by Honeywell thermostat T8602D20268 Premier White color system switch none fan switch none field terminals W 4 R 5 Y 6 T8602D1028 Trol A Temp by Honeywell thermostat T8602D20268 Premier White color system switch none fan switch none field terminals W 4 R 5 Y 6 CT8602C One stage heat and one stage cool retail thermostat battery powered CT8602C1001 Retail Honeywell logo off white color duel T8602D2000 TRADELINE packaging fuel fan control system switch HEAT OFF COOL fan switch ON AUTO separate O and B terminals clamshell packaging a Trol A Temp by Honeywell thermostat model WIRING DIAGRAMS Fig 15 20 THERMOSTAT O THERMOSTAT A RELAY Q ON COMPRESSOR COOL HEAT CONTACTOR DAMPER OUTDOOR TEMPERATURE SENSOR FAN HEAT RELAY DAMPER 1 HOT TRANSFORMER TRANSFORMER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD not AVAILABLE ON T8600A MODELS M10346 PROTECTION AS REQUIRED Y A CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT Fig 15 Typical hookup of T8600 or T8602 PUMP SYSTEMS in heat only application A AVAILABLE ON SELECT MODELS OT WI
31. hermostat Information u eee 11 Programming cay lak sire zina eerte oer vas vake k e ter vue 11 Operation EE AE AEE T DD Dm 16 Troubleshooting Guide u Ek kk kk k 17 Cross Reference sse 19 Wiring Diagrams Fig 15 20 sees 24 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS SPECIFICATIONS IMPORTANT The specifications given in this publication do not include normal manufacturing tolerances Therefore this unit might not exactly match the listed specifications This product is tested and calibrated under closely controlled conditions and some minor differences in performance can be expected if those conditions are changed Thermostat Models T8600 T8601 and T8602 Thermostats provide features listed in Table 1 Electrical Rating Nominal Range 24 Vac 50 60 Hz 20 to 30 Vac 50 60 Hz Batteries Only T8602 models require batteries Loss of Power The thermostat will maintain programmed times and temperatures for the life of the product The clock and day information is retained for a minimum of thirty minutes System Current Load Ratings 6 VA maximum at 30 Vac 50 60 Hz Output Relay Load Rating See Table 2 Temperature Ratings Operating Ambient 40 F to 110 F 4 C to 43 C Shipping 30 F to 150 F 34 C to 65 C Display Accuracy 1 F 0 5 C Setpoint Range Heating 40 F to 90 F
32. ime 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 Setting the Current Day and Time IMPORTANT Always press the keys with your fingertip or similar blunt tool Sharp instruments like pens and pencil points can damage the keyboard 1 Press Set Current Day Time NOTE Opn initial power up or after an extended power loss 1 00 pm flashes on the display until a key is pressed Set Current Day Time M10312 2 Press Day until the current day is displayed NOTE Sun Sunday Mon Monday Tue Tuesday Wed Wednesday Thu Thursday Fri Friday Sat Saturday M10313 3 Press Time or Time V until the current time is displayed NOTE Tapping the Set Current Day Time will change the time in one hour increments Set Day Time B 5 Tue M10314 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS NOTE Ifthe current time is Daylight Savings Time Programming the First Day Start by programming the Wake time and temperature and fan operation on select models for any one day 1 Press Wake press Daylight Time until DST is displayed M10315 M10317 M10316 Table 9 Default Time Setpoints and Fan Settings zr 165 0 Tuesday zr 165 0 Wednesday zr 165 0 Thursday zr 165 0
33. l system with one transformer M10353 THERMOSTAT OUTDOOR TEMPERATURE SENSOR COOLING HEATING TRANSFORMER TRANSFORMER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO R TERMINAL WHEN INSTALLED ON A ONE TRANSFORMER SYSTEM A CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS A AVAILABLE ON SELECT MODELS OT WIRES MUST HAVE A SEPARATE CABLE FROM THE THERMOSTAT CABLE A T8601D MODELS REQUIRE POWER TO R TERMINAL AT ALL TIMES M10354 Fig 20 Typical hookup of T8601 in heat and cool system with two transformers 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 68 0164 1 26 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 27 68 0164 1 Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 Honeywell Latin American Region 480 Sawgrass Corporate Parkway Suite 200 Sunrise FL 33325 Home and Building Control Honeywell Limited Honeywell Limit e 155 Gordon Baker Road North York Ontario M2H 3N7 Honeywell Europe S A 3 Avenue du Bourget B 1140 Brussels Belgium Honeywell Asia Pacific Inc Room 3213 3225 Sun Hung Kai Centre No 30 Harbour Road Wanchai Hong Kong Honeywell 68 0164 1 J H Rev 7 97 Printed in U S A G Printed on recycled paper containing at least 10 post consumer paper fibers Helping You Control Your
34. m Sequence of Operation Peer an and me eg jen n a When electric heat fan is selected G is BL M and fan symbol is displayed b Basedon last piece of equipment called cooling O or heating B and Installer Setup selection Equipment Protection As part of the operational sequence the thermostat microprocessor also incorporates minimum off time for all cooling stages Using the minimum off time assures that rapid cycling of equipment does not occur which extends equipment life Minimum off times are set in the Installer Setup T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS Thermostat Operation Startup When power to the thermostat is turned on a startup and initialization program begins The startup occurs only on initial powerup After total loss of power for an extended period the current time and day may need to be set but the user program is held See Table 11 for the default values NOTE Immediately following initialization the user can enter new setpoints to be used in place of the default values Table 11 Default Time Setpoint and Fan Settings Heat Cool Period Time Setpoint Setpoint Wake 6 00 AM 7O F 78 F Auto 21 C 25 5 C Leave 8 00 AM 62 F 85 F Auto 16 5 C 29 5 C Return 6 00 PM 70 F 78 F Auto 21 C 25 5 C Sleep 10 00 PM 62 F 82 F Auto 16 5 C 28 C Adaptive Intelligent Recovery Feature Adaptive Intelligent Recovery ensur
35. mostat and wallplate See M15044 Fig 5 2 Press lower edge of case to latch Fig 3 Mounting the wallplate NOTE To remove the thermostat from the wall first pull out IMPORTANT at the bottom of the thermostat then remove the top Use 18 gauge color coded thermostat cable for proper wiring Securely tighten each terminal screw Push excess wire back into the hole Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat BON Table 4 Terminal Designations and Descriptions Standard Alternate Terminal Terminal Designations Designations Typical Connection Terminal Type Bl Heating damper or changeover valve Output 24V powered contact o fa Coating damper or changeover valve Output 24v powered contact onor Outdoor temperature sensor 670896 mw m v TT 24V System or heating ranstomer mu n6 2V soging transtomer T a Some OEM models label the terminal for transformer common B 5 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS A ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE SETTI NG S 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 configur
36. oneywell logo T8600D2028 Separate O amp B terminals duel fuel T8600D1012 Canadian TRADELINE thermostat T8600D2028 Separate O amp B terminals configure for Honeywell logo degree C C in Installer Setup 14 duel fuel T8600D1020 Energy Sensor T8600D2028 Separate O amp B terminals duel fuel T8600D1038 Canadian Carrier thermostat degree C T8600D2028 Separate O amp B terminals configure for part no HHO7AT101 C in Installer Setup 14 duel fuel T8600D1046 T8600D2028 Separate O amp B terminals duel fuel T8600D1053 Heil Quaker thermostat Honeywell logo T8600D2028 Separate O amp B terminals duel fuel part no HQ1000776HW T8600D1079 Lennox logo part no 27H3101 T8600D2028 Separate O amp B terminals duel fuel T8600D1103 T8600D2028 Separate O amp B terminals duel fuel T8600D1111 TRADELINE thermostat Honeywell logo T8600D2028 Separate O amp B terminals duel fuel Premier White color taupe color T8600D1129 Canadian TRADELINE thermostat T8600D2028 Separate O amp B terminals configure for Honeywell logo Premier White color C in Installer Setup 14 duel fuel degree C T8600D1137 Solitaire logo Premier White color T8600D2028 Separate O amp B terminals duel fuel Nordyne part no 9132400 taupe color T8600D1145 Canadian Carrier thermostat Premier T8600D2028 Separate O amp B terminals configure for White color degree C part no C in Installer Setup 14 duel fuel HH07AT101 W
37. ower switch on the HVAC equipment is in the Off position set to the On position check wiring between thermostat and HVAC equipment replace any broken wires and tighten any loose connections f 24 Vac is present proceed with troubleshooting Temperature Room temperature display has Enter Installer Setup number 37 and reconfigure the display display is incorrect been reconfigured Thermostat is configured for F Enter Installer Setup number 14 and reconfigure the display or C display Bad thermostat location Relocate the thermostat Temperature The upper or lower temperature Check the temperature setpoints settings will not limits were reached Heating limits are 40 to 90 F 4 5 to 32 C change Example Cooling limits are 45 to 99 F 7 to 35 C except D model cooling Cannot set the limits are 48 to 99 F heating higheror The setpoint temperature range Check Installer Setup numbers 34 and 35 and reconfigure the setpoint the cooling lower stops were configured stops Heating will not No power to the thermostat e Setpoint is above room temperature come on e Check for 24 Vac between R and C or W terminals If missing 24 Vac check if the circuit breaker is tripped reset the circuit breaker check if the system fuse is blown replace the fuse check if the power switch on the HVAC equipment is in the Off position set to the On position check wiring between thermostat and HVAC equipment
38. pment can be turned on and off during the Installer System Test Equipment damage 7 can occur if the compressor is cycled too quickly 4049 Pan equipment canbe tunedin and alt 60 Oto Keyboard keys test Press and hold the increase A and W decrease keys at the 60 19 same time until 10 appears All segments of the display are 70 79 Thermostat information including date code and displayed for three seconds before 10 appears See Fig 10 software versions are displayed and 11 TEST NUMBER M10257A Fig 11 Display of test number Refer to Table 8 for the directions and results of the specific tests NOTE Press Time to advance to the next test and Time V to go to the previous test Press Run Program to exit the system test Table 8 Installer System Test Options Test Key to Press Number Description Heating Equipment System Test A ra Heat comes on When Installer Setup number 21s 1 1e system Tan is also energizeq Cool and system fan come on Cool and system fan turn off Fan Equipment System Test Time 68 0164 1 10 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS NOTE Press any key and the numbers will change on the display Press Time V to scroll backwards and Time to scroll forward The Run Program Key will not exit from this test To exit go to a different test and press Run Program THERMOSTAT INFORMATION 1 Press the Time key to access the thermostat informa
39. replace any broken wires and tighten any loose connections f 24 Vac is present proceed with troubleshooting Heating will not Thermostat minimum off time is Wait up to five minutes for the system to respond come on activated System selection is not set to Set system selection to Heat Heat Heating setpoint is below room Check heating setpoint Set heating setpoint to desired temperature temperature Cooling will not No power to the thermostat Setpoint is below room temperature come on Check for 24 Vac between R or RC and C or Y terminals D models requires power to R at all times If missing 24 Vac check if the circuit breaker is tripped reset the circuit breaker check if the system fuse is blown replace the fuse check if the power switch on the HVAC equipment is in the Off position set to the On position check wiring between thermostat and HVAC equipment replace any broken wires and tighten any loose connections f 24 Vac is present proceed with troubleshooting Thermostat minimum off time is e Wait up to five minutes for the system to respond activated Enter Installer Setup number 33 Reconfigure minimum off time if required System selection is not set to Set system selection to Cool Cool Cool setpoint is above room Check cooling setpoint Set cooling setpoint to desired temperature temperature continued 68 0164 1 18 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE
40. tegral P I control The thermostat sensor located on the thermostat or remote senses the current space temperature The proportional error is calculated by comparing the sensed temperature to the programmed setpoint The deviation from the setpoint is the proportional error The thermostat also determines integral error which is a deviation based on the length of error time The sum of the two errors is the P l error The cycle rate used to reach and maintain the setpoint temperature is computed using the P l The addition of the integral error is what differentiates the thermostat from many other electronic and electromechanical thermostats See Fig 13 68 0164 1 THERMOSTAT COOL SETPOINT PROPORTIONAL COOL CONTROL POINT P CONTROL d POINT a PROPORTIONAL HEAT CONTROL POINT P CONTROL POINT E TEMPERATURE THERMOSTAT HEAT SETPOINT HEATING COOLING 100 50 0 50 100 PERCENT LOAD MALTA Fig 13 Proportional temperature control versus P l temperature control Operation Sequence The thermostat energizes specific terminals depending what the Fan and System are set to The LCD will display the time room temperature system and fan selection Symbols will be displayed when the heating cooling or fan is energized See Table 10 for specific information NOTE Not all the thermostat models have all the terminals listed in the Energize column Table 10 Conventional Syste
41. teps 1 through 7 for each day of the week that has a different program than the first day Refer to Copying a Day section to copy any program day to another 8 Press Run Program when all days are programmed Run c Program c2 a Copying a Day QH ou bo M10323 NOTE The thermostat must be in the program mode to use the copy feature Go to step 2 if the thermostat is already in the program mode 1 Press Wake SEMI Sian Tine aa BH M10324 2 Press Day to select the day to be copied if different from the day displayed M10325 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 3 Press Copy M10326 4 Press Day until the day to be copied to is displayed M10327 5 Press Copy NOTE donE will be displayed for two seconds and then the normal program display will be shown M10328 6 Repeat steps 2 through 5 for all the days desired 7 Press Run Program Clearing Program Period NOTE The thermostat must be in the program mode to use the clear feature Go to step 2 if the thermostat is already in the program mode 1 Press Wake Leave Return or Sleep M10330 3 Press Leave Return or Sleep until the start time and temperature setting are cleared approximately 3 seconds NOTE Wake cannot be cleared M10331 68 0164 1 14 4 Repeat steps 2 and 3 for all the periods to be clear
42. tion 1 M4934 2 Press the increase A key to display the production 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 1 Dg M10351 3 Press the increase A key again to display the software identification code Example 02 software ID code 2 te Ue M4932A 4 Press the increase A key again to display the software revision number Example 001 Revision number 1 2 Bul M10229 5 Press the increase amp key again to display the EEPROM identification code Example 314 EEPROM ID 314 6 Press the Run Program key to exit the system test The 3 M M4933A system test times out after five minutes without any key presses PROGRAMMING The keyboard is located behind the thermostat cover with three frequently used keys by the display The thermostat display shows day time program period temperature system and fan operation selection The thermostat can be set for four times and up to eight temperatures for each day of the week 28 independent time and 56 temperature settings The A and V keys provide quick temporary temperature changes to increase comfort The Hold Temp key provides energy efficient operation for extended periods of time Before starting the programming procedure use Table 9 to organize the program schedule The factory preprogrammed time temperature and fan settings are shown in brackets If a dayt
43. urrent day is displayed NOTE Sun Sunday Mon Monday Tue Tuesday WedzWednesday Thu Thursday Fri Friday Sat Saturday Setting Current Day and Time M10313 1 Press Set Current Day Time 3 Press Time or Time V until the current time is displayed NOTE Opn initial power up or after an extended power loss 1 00 pm flashes on the display until a key is pressed NOTE Tapping the Set Current Day Time will change the time in one hour increments Set Day Time Set Current Day Time M10312 M10314 9 68 0164 1 T8600D T8601D AND T8602D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS NOTE Ifthe current time is Daylight Savings Time press Daylight Time until DST is displayed Sey TEHI Start Time SPAG Temporary Setting Enrg Hold for PIO Sav crap sla bk mma Ll LL LI LL MonTueWedThuFriSatSun W Heat Cool A Outdoor WakeLeaveReturnSleep n Recovery Auto Repl Batt System M10315 Em Heat OnAuto M10345 Fig 10 Display of all the segments of the LCD M10316 INSTALLER SYSTEM TEST Use the Installer System Test to check the thermostat operation Refer to Table 7 for a list of the available system tests Table 7 Tests Available in Installer System Test To start the system test Test Number System Test Description N CAUTION 10 19 Heating equipment can be turned on and off The minimum off time for compressors is bypassed 30 39 Cooling equi
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