Honeywell T8024D User's Manual
Contents
1. longer displayed 2 Setting C or F a Press the A key again to n display the current setting J M12587A b Press the W key to panan change the C or F J indication M12586A 3 Setting number of heat cool stages T8024 only a Press A to display number of cooling stages E Ct Na M20215 b Press W to change number of cooling stages C wep 1 M20216 c Press A to display l number of heat stages r1 M20217 d Press W to change number of heat stages pl M20218 4 Setting 2nd Stage Heat Cycle Rate see Table 1 for the cycle rate options and equipment NOTE a Press the A key to display the current heat cycle rate setting of 1 3 6 9 or 12 cph I M12588A If the desired cycle rate is displayed press the A key to exit the installer setup b To change the second cycle rate press the V key until your choice of 1 3 4 5 6 9 or 12 is displayed c Press the A key to display cooling algorithm configu ration default Z LJ M12589A al r L M14691 d Press the A key again to change algorithm to C1 or C3 C1 Standard algo rithm C3 Agressive algorithm can cause overshooting e Press the A key again Current configuration CC is displayed A typical example is shown but CC varies by model This um ri E rr LL2. Fig 11 T8024D multistage heat cool wiring diagram Setting Fan Operation Fuel Switch The fan operation fuel switch is preset at the factory in the F position See Fig 11 This is the correct setting for most systems If this system is an electric heat system set the switch to the E position The E setting allows the fan to turn on immediately with the heating or cooling equipment ina system where the G terminal is connected FAN OPERATION FUEL SWITCH M12580 Fig 12 Fan operation fuel switch Mounting Thermostat to Wallplate 1 Slide SYSTEM switch to the Off position 2 Engage the tabs at the top of the thermostat and wallplate 3 Swing down the thermostat and press the lower edge of the thermostat onto the wallplate to latch See Fig 12 INSTALLER SETUP Setting F C Indication and Heat Cycle Rate The following instructions provide the information necessary to change the heating cycle rate to match the heating equipment and to choose either Fahrenheit F or Celsius C display NOTE All four steps must be completed to save changes to the F C indication and the heat cycle rate 68 0195 2 1 En a DASHED LINES INDICATE TABS ON BACK OF THERMOSTAT A ENGAGE TABS AT TOP OF THERMOSTAT WITH SLOTS ON WALLPLATE B PRESS LOWER EDGE OF M14674 CASE TO LATCH Fig 13 Mounting thermostat to wallplate ter Installer Setup Use A or V keys to set Bai the temper a
3. information is for factory use only 5 Exit Installer Setup a Press the A M14692 MP 4 key to save NAN d Cd zl IN mba E CR all changes a and return to ILI LIPM normal 2058 operation lt Table 1 Heating Cycle Rates Steam Gravity M12590A Cycles System Per Hour Hydronic Heat Condensing Gas Furnaces 8 Electric Heat Special Applicationsb a High efficiency furnace 90 b Refer to the equipment manufacturer s Instructions ees or orroe 8 Ec 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS OPERATION Setting FAN and SYSTEM Switches Fan and system settings are controlled manually by using the switches located at the bottom of the thermostat case See Fig 14 M12547 Fig 14 Digital Display and System Switches FAN Switch Fan switch settings are On The fan runs continuously Use for improved air circulation and air quality Auto Normal setting for most homes In cooling the fan starts and stops with the cooling equipment In heating the fan is controlled directly by the heating equipment and may start a few minutes after the heating equipment turns on most systems When the fan operation fuel switch is in the E position the fan starts and stops with the heating equipment Slide the FAN switch in the lower left corner of the thermostat to select the desired fan setting SYSTEM Switch System switc
4. M11731 Fig 16 T8001C hardwired internal schematic ss Sequence of Operations The Fan Heat and Cool outputs are relay or mosfet controlled A loss of ac power or a change in the SYSTEM switch setting can cause the outputs to turn off The truth table shows the sequence of operations for the FAN settings TACO ZONE VALVE and SYSTEM modes See Table 3 Sequence of Operations Minimum Off Timer Li RESISTOR A minimum off timer in the T8000C and T8001D assures that the compressor does not come on again for at least five minutes after it turns off The minimum off timer is triggered when the compressor turns off and when the SYSTEM switch position is changed If the compressor turns off when the setpoint is changed the minimum off timer is triggered Power interruption and power restoration also trigger the minimum off timer The minimum off timer operates in cooling on the T8000C and T8001C A flashing snowflake em indicates the minimum off timing is in effect A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M11677 Fig 17 Connect resistor to the TACO zone valve terminal numbers 1 and 2 Table 3 Sequence of Operations FAN Switch Settings SYSTEM Switch Settings Call for Action Energize Terminals Display Icons a When the Fuel switch is in the E position T 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS TROUBLESHOOTING T8000 T8001 SYMPTOM HEATING OR COOLING EQUI
5. Control Sales Office check white pages of your phone directory 2 Home and Building Control Customer Relations Honeywell 1885 Douglas Drive North MN10 1461 Golden Valley Minnesota 55422 4386 1 800 468 1502 In Canada Honeywell Limited 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 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could 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 installation is complete check out product operation as provided in these instructions N CAUTION Damage to Heating Cooling System Possible Be careful when handling wires during installation Disconnect power at furnace or main breaker fuse box 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 Dispose of it properly Contact your local waste management authority for instructions regarding recycling and the
6. ABLE THERMOSTATS SLEEP MON TUE WED THU FRI M12630A rr LJ lo SLEEP MON TUE WED THU FRI M12631B ELIE AM b an WAKE SAT SUN M12632A EN Oo tol DP WAKE SAT SUN M12633B LL I IL AM I LI Ll LEAVE SAT SUN M12634A pL LI LI Joa LEAVE SAT SUN M12635A RETURN SAT SUN M12636A IL RETURN SAT SUN M12637A kde JPM SLEEP SAT SUN M12638A KE LI ho M12639B 11 End Programming Press Select End is displayed Programming is complete The thermostat will revert to displaying the current day time and temperature in five seconds M12511A NOTE To reset the thermostat to the preprogrammed time and temperature settings see Table 1 1 Press and hold the Hold and Select keys simultaneously The display will begin counting down from 36 to zero 2 The thermostat display will go blank then will display the current time and temperature 3 Release keys the program has reverted to the preprogrammed settings Setting Temperature Hold Slide the SYSTEM switch to the heat or cool position Temporary Temperature Hold 1 Press A or V key to seta temporary temperature setting E dd me i IPM IL WED M12640A NOTE The temporary temperature setting is displayed for approximately 3 seconds The setting remains in effect until the next program peri
7. AD PROTECTION AS REQUIRED CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS A JUMPER R TO Rc M12561 Fig 6 T8000C heat cool wiring diagram in single transformer system with gas heat electric cooling COOLING HEATING TRANSFORMER TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A REMOVE RC TO R JUMPER WHEN INSTALLED ON A TWO TRANSFORMER SYSTEM A CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS A POWER TO R TERMINAL IS REQUIRED WHEN THE SYSTEM SWITCH IS IN THE OFF POSITION M12562 Fig 7 T8000C wiring diagram in heat cool system with two transformers T8000C THERMOSTAT CHANGEOVER CONTROL AN JUMPER R TO RC M12563 Fig 8 T8000C heat cool wiring diagram on a zone 1 MABS II Mastertrol control panel T8001 THERMOSTAT TRANSFORMER A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED VAN CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS NEG Fig 9 T8001C heat cool wiring diagram in single transformer system with gas heat electric cooling T8001 THERMOSTAT CHANGEOVER CONTROL M12567 Fig 10 T8001C heat cool wiring diagram ona zone 1 MABS II Mastertrol control panel 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS T8024 THERMOSTAT TRANSFORMER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M20214
8. ECTED TO THE SYSTEM TRANSFORMER T8001 ONLY CHECK POWER TO HEATING AND COOLING EQUIPMENT ON OFF SWITCH FUSE OR CIRCUIT BREAKER LOOSE 24V CONNECTION THERMOSTAT MOUNTED INCORRECTLY ON WALLPLATE SEE INSTALLATION INSTRUCTIONS FOR CORRECT MOUNTING AT THERMOSTAT AT FURNACE AIR CONDITIONER INCORRECT WIRING SEE WIRING DIAGRAM THERMOSTAT IS CONFIGURED FOR RECONFIGURE THE DISPLAY SEE INSTALLER SETUP F OR C DISPLAY SECTION THE UPPER OR LOWER TEMPERATURE LIMITS WERE REACHED INCORRECT WIRING HEATING OR COOLING EQUIPMENT INOPERATIVE CHECK THE TEMPERATURE SETPOINTS TEMPERATURE SETTING RANGE IS 40 F 4 C TO 99 F 37 C CHECK WIRING DIAGRAM CONSULT EQUIPMENT MANUFACTURER INSTRUCTIONS M11733 Honeywell Home and Building Control Honeywell 1985 Douglas Drive North Golden Valley MN 55422 68 0195 2 G H Rev 10 01 Home and Building Control Honeywell Limited Honeywell Limit e 35 Dynamic Drive Scarborough Ontario MIV 4Z9 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers www honeywell com yourhome
9. Honeywell T8000C T8001C T8024D Programmable Thermostats APPLICATION The T8000C T8001C and T8024D Programmable Thermostats provide programmable temperature control for 24 Vac heating cooling systems with manual changeover from heat to cool The T8000C and T001C provide single stage heating and cooling control and the T8024D provides two stage heating and two stage cooling contorl Heating cycle rates are selectable at 1 3 4 5 6 9 or 12 cph Cooling cycle rates are fixed at 3 cph Temperature indication can be set for F or C The T8000C is powered through the heating cooling system controls The T8001C and T8024D are powered directly through the system transformer U S Registered Trademark Copyright 2001 Honeywell e All Rights Reserved PRODUCT DATA FEATURES Attractive styling complements any decor to the homeowner s delight Preprogrammed for your convenience Program up to four time periods and temperature setpoints to complement your lifestyle Programs are permanently held in non volatile memory in the event of a power failure Indefinite setpoint temperature hold for added comfort and energy savings Ease of use means fewer homeowner questions and increased homeowner satisfaction Large temperature display for quick easy readability e Conveniently sized thermostat 5 1 2 x 3 1 2 with optional decorator cover plates 7 3 8 x 5 3 4 make it easy to install in a variety of locati
10. PMENT WON T OPERATE K IS FLASHING AND COOLING WILL NOT OPERATE PARTIAL DISPLAY NO DISPLAY TEMPERATURE DISPLAY IS NCORRECT TEMPERATURE SETTINGS WILL NOT CHANGE EX CANNOT SET THE HEATING HIGHER OR THE COOLING LOWER FAN DOES NOT OPERATE PROPERLY N HEAT OR COOL MODES POSSIBLE CAUSE ACTION NO AC POWER TO THERMOSTAT CHECK THAT C TERMINAL IS CONNECTED TO THE SYSTEM TRANSFORMER T8001 ONLY CHECK POWER TO HEATING AND COOLING EQUIPMENT THERMOSTAT INOPERATIVE PRESENT SETTING TOO LOW HIGH SYSTEM SWITCH ON THERMOSTAT N WRONG POSITION MINIMUM OFF TIMES IN THERMOSTAT N OPERATION ON COOLING NCORRECT WIRING HEATING OR COOLING EQUIPMENT NOPERATIVE STILL IN INSTALLER SETUP MODE INOPERATIVE THERMOSTAT ON OFF SWITCH FUSE OR CIRCUIT BREAKER LOOSE 24V CONNECTION AT THERMOSTAT AT FURNACE AIR CONDITIONER INCORRECT WIRING SEE WIRING DIAGRAM CONDUCT SELF TEST SEE CHECKOUT SECTION ADJUST TEMPERATURE BY PRESSING d OR WP KEYS RESET THERMOSTAT SYSTEM SWITCH WAIT FIVE MINUTES OR FOLLOW STEPS IN CHECKOUT SECTION CHECK WIRING DIAGRAM CONSULT EQUIPMENT MANUFACTURER INSTRUCTIONS MINIMUM OFF TIMES IN THERMOSTAT WAIT FIVE MINUTES OR FOLLOW STEPS IN N OPERATION ON COOLING CHECKOUT SECTION SEE THE INSTALLER SETUP SECTION FOR INSTRUCTIONS REPLACE THERMOSTAT NO POWER TO THERMOSTAT CHECK THAT C TERMINAL IS CONN
11. degrees Temperature Setting Range 30 to 99 F 4 to 37 C Ambient Temperature Range 30 to 110 F 4 to 43 C Shipping Temperature Range 20 to 120 F 29 to 49 C Operating Relative Humidity 5 to 90 RH non condensing ORDERING INFORMATION Cycle Rates at 50 Load Heating Selectable at 1 3 6 9 or 12 cph See Heating Cycle Rates Table 1 for cycle rate options and corresponding system equipment Cooling Fixed at 3 cph Finish T8000C and T8024D TRADELINE MODELS are available in Premier Whites and Taupe finish T8001C MODELS are available in Premier White color Accessory Decorator cover plates for covering wall marks are available separately Order Honeywell part no 209649A for Taupe or part no 209649B for White 7 3 8 in 188 mm x 5 3 4 in 146 mm Dimensions See Fig 1 WALLPLATE E 4 3 8 111 _ gt 3 5 16 84 gt THERMOSTAT THERMOSTAT AND WALLPLATE 5 1 2 140 1 3 16 55 M M14675 Fig 1 T8000 T8001 Thermostat dimensions in in mm 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
12. eed ee itte ce ecce Has eoo 12 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS SPECIFICATIONS IMPORTANT The specifications given in this publication do not include normal manufacturing tolerances therefore an individual unit might not exactly match the listed specifications Also this product is tested and calibrated under closely controlled conditions and some minor differences in performance can be expected if those conditions are changed The TRADELINEz models include a thermostat wallplate and owner s guide A 7 3 8 in x 5 3 4 in 188 mm x 146 mm decorator cover plate for covering wall marks is available separately Order Honeywell part no 209649A taupe or part no 209649B white Power 24 Vac nominal 18 to 30 Vac 50 or 60 Hz Electrical Ratings T8000C Heating 02 1 2A run 3 5A inrush Cooling 02 1 2A run 6 0A inrush T8001C and T8024D Heating 02 to 1 5A run 3 5A inrush Cooling 02 to 1 5A run 7 5A inrush T8000C T8001C and T8024D Fan 02 to 0 5A run 2 5A inrush Current Draw T8000C Power Stealing Thermostat requires only 2 5 mA current draw when the thermostat calls for heat and is compatible with most 24V microprocessor systems For further detail see Power Stealing in the OPERATION section Temperature Adjustment Setpoint temperature is adjusted by using the W or A keys One press changes the setpoint one degree pressing and holding changes the setpoint several
13. h settings control thermostat operation as follows Cool The thermostat controls the cooling system Off Both heating and cooling are off Heat The thermostat controls the heating system Slide the SYSTEM switch in the lower right corner of the thermostat to select the desired system setting PROGRAMMING The thermostat is flexible and can be programmed for different schedules for weekdays and weekends Four time periods are available during weekdays and weekends W AKE LEAVE RETURN and SLEEP IMPORTANT Always press the keys with your fingertip or similar blunt tool Sharp instruments like pens and pencil points can damage the keyboard 68 0195 2 Setting the Current Time and Day 1 To Set Current Time a Press Select twice wre b Press A or V to set Lt JPM current time While setting the current time the word SET is displayed M12591A 2 To Set Day of Week a Press Select again b Press A or V to set current day T M12593A NOTE To use the preprogrammed time and temperature see Table 2 press Hold to exit Programming Table 2 Preprogrammed Time and Temperature Settings Period Time Heat Setpoint Cool Setpoint 6 00 AM 70 F 21 C 78F 260 Te eec Setting the Weekday Program Slide the SYSTEM switch to the position heating or cooling you want to program The flame heating or the snowflake cooling will appear in the lower right corner of the display 1 0
14. od To cancel press Hold twice Indefinite Temperature Hold The Hold key allows you to indefinitely hold a temperature When Hold is active the letters Hid are displayed continuously Hold can be canceled by pressing the Hold key again 1 Press Hold 2 Press A or V key to set indefinite temperature setting NOTE L m lt a B ey LI M12641A Indefinite hold remains in effect until the Hold key is pressed to cancel it CHECKOUT Heating 1 Slide the SYSTEM switch to Heat and the FAN switch to Auto 2 Press and hold the A key to raise the temperature setting several degrees above the room temperature the heating equipment should start In conventional systems the system turns on the fan through the use of a time delay relay or through a limit control When the fan operation fuel switch is in the E position the fan starts immediately 3 Press the W key to lower the temperature setting below the room temperature Heating equipment should stop 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS Cooling N CAUTION Damage To Compressor Possible Operating at too low of an outdoor temperature may cause compressor damage Do not operate cooling if outdoor temperature is below 50 F 10 C Allow compressor to remain off for five minutes before restarting Refer to manufacturer s recommendations 1 Slide the SYSTEM switch to Cool and the FAN
15. ons e Keys are located by the display for easy access FAN and SYSTEM switches are located on the lower edge to eliminate accidental setting changes Easy installation setup and self test saves time and increases installer productivity Manual changeover from heat to cool eliminates unexpected system operation F or C temperature display for added model flexibility e Selectable heating cycle rate 1 3 4 5 6 9 or 12 cph for a variety of applications which reduces the amount of inventory Cooling cycle rate is fixed 3 cph the standard setting for compressors for speedy installation e Setpoints are permanently held in non volatile memory no batteries required and retained during power outages for increased installer and homeowner convenience Power stealing and hardwired models available for virtually all equipment and application needs including gas oil and electric forced air condensing gas furnaces forced air zoning systems single stage heat pumps hydronic heat gravity and radiant floor heat systems Contents Application c ak E 1 Features iesu HE MORE EE 1 SPECHICALIONS srasah iga ag Ae aa NE naga gan Nan aab aa AE 2 Ordering Information es eseee eaaa a nen na anane anane n eee 2 InstallatiOm corte em enr ime eo bak nag agi ABA AN 3 Installer Setup 5 tornei eniti tt einen 6 Operation AAE 8 reor BAEN ga 9 Troubleshooting 2c ciiin n
16. proper disposal of a control If you have questions call the Honeywell Customer Response Center at 1 800 468 1502 Location Install the thermostat about 5 ft 1 5m 1 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 the sun or appliances concealed pipes and chimneys unheated uncooled areas such as an outside wall behind the thermostat 5 FEET 1 5 METERS M11338 Fig 2 Typical location of thermostat Mounting Wallplate to Wall IMPORTANT Level only for appearance The thermostat functions normally even when not level Mount wallplate and the T8000C T8001C with the screws provided see Fig 3 as follows 1 Place the wallplate at the desired location on the wall 2 Pull the thermostat wire through the wallplate entrance hole 3 Fasten the wallplate to the wall using the anchors and screws provided 4 After wiring the wallplate plug the hole with non flammable insulation to prevent drafts from affecting the thermostat see Wiring section 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS WALL WALL ANCHORS 2 T MOUNTING 4 WARTE SCREWS 2 M12202 Fig 3 Mounting wallplate to wall Wiring IMPORTANT Use an 18 gauge maximum wire for wiring the the
17. rmostats All wiring must comply with local electrical codes and ordinances Disconnect the power supply to prevent electrical shock or equipment damage The shape of the terminals permits insertion of straight or wraparound wiring connections either method is acceptable A letter code is located near each terminal for identification See Fig 4 NOTE To ensure proper mounting of thermostat restrict all wiring to the shaded area in the center of the terminals See Fig 5 The T8000C Thermostats are powered through the heating cooling system controls and are adaptable to most 18 to 30 Vac heating cooling systems The T8001C and T8024D Thermostats are powered directly from the system transformer The T8001C Thermostats are adaptable to most 18 to 30 Vac single stage heating cooling systems and the T8024D is adaptable to multistage systems All T8001C and T8024D thermostats require a common wire connected to the system transformer to operate properly 68 0195 2 Refer to Fig 6 through 10 for typical wiring hookups TERMINAL FOR STRAIGHT FOR WRAPAROUND SCREW INSERTION STRIP STRIP 7 16 IN 11 MM O M20212 KEEP WIRING IN SHADED AREA MOUNTING WIRING ENTRANCE MOUNTING SCREW HOLE SCREW HOLE g empti we tra z M18503 Fig 5 Restrict wiring to shaded area T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS T8000C THERMOSTAT TRANSFORMER AN POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLO
18. s and can be used in applications where existing wiring does not permit using hard wired thermostats See Fig 15 and 16 Previous Honeywell power stealing thermostats required 80 mA of load current when the heating and cooling was on The T8000C Thermostat requires only 2 5 mA of load current 1 32 of previous models when the heating or cooling is on When the heating or cooling is off the thermostat operates at 0 1 mA 1 100 of previous models Other Honeywell power stealing thermostats are available but they have different powering requirements than the T8000C This low current draw makes the T8000C applicable to most 24V heating and cooling systems The thermostats only operate when mounted on the wallplate with 24V applied Batteries are not required for operation because temperature setpoints and configuration settings are retained permanently in nonvolatile memory The T8000C is packaged with a 7870 ohm resistor to insure compatibility with TACO zone valves See Fig 17 WALLPLATE SYSTEM COMPONENTS HEAT CHANGEOVER RELAY COOL CHANGEOVER RELAY M11730 Fig 15 T8000C power stealing internal schematic 68 0195 2 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS THERMOSTAT WALLPLATE SYSTEM COMPONENTS POWER SUPPLY SYSTEM SWITCH LOGIC CONTROL CIRCUIT STAGE 1 HEAT OR COOL FAN SWITCH FUEL SWITCH O A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED
19. so0AM er 170 1 0 62 17C 82 F 28 C 3 WAKE a Press Select Press A or V to set I LII AM WAKE time Lr 3 2 WAKE MON TUE WED THU FRI M12624A b Press Select Press A or V to set WAKE temperature l Da h JL WAKE MON TUE WED THU FRI 4 LEAVE Weare a Press Select Press A or V to set LEAVE time I7 7H MAN LI IL LEAVE MON TUE WED THU FRI b Press Select M12626A Press A or V to set LEAVE temperature py re ap m LI Id 5 RETURN MON TUE WED THU FRI a Press Select M12627A Press A or V to set RETURN time r Lr Li 1PM RETURN MON TUE WED THU FRI M12628A JL RETURN MON TUE WED THU FRI b Press Select Press A or V to set RETURN temperature M12629A 6 SLEEP a Press Select Press A or V to set SLEEP time Press Select Press A or V to set SLEEP temperature Setting the Weekend Program 7 WAKE a Press Select Press A or V to set WAKE time b Press Select Press A or V to set WAKE temperature 8 LEAVE a Press Select Press A or V to set LEAVE time b Press Select Press A or V to set LEAVE temperature 9 RETRUN a Press Select Press A or V to set RETRUN time b Press Select Press A or V to set RETRUN temperature 10 SLEEP a Press Select Press A or V to set SLEEP time b Press Select Press A or V to set SLEEP temperature T8000C T8001C AND T8024D PROGRAMM
20. switch to Auto 2 Press the W key to lower the temperature setting several degrees below the room temperature the cooling equipment should start The fan starts and stops with the cooling equipment 3 Press the A key to raise the temperature setting above the room temperature Cooling system should shut down NOTE To prevent damage to the compressor the T8000C T8001C have a built in off timer See page 11 Fan 1 Slide the SYSTEM switch to Off and the FAN switch to On The fan should run continuously 2 Slide the FAN switch to Auto In heating the fan is controlled directly by the heating equipment and may start a few minutes after the heating equipment turns on most systems When using an electric heat THERMOSTAT IE SUPPLY SYSTEM SWITCH LOGIC Q Q Q CONTROL CIRCUIT STAGE 1 HEAT OR COOL FUEL P SWITCH d AUTO AN POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A FACTORY INSTALLED JUMPER HEATU F 4 KA HA I C C C OFF HA KA KADI COOL KA F A KAU T SWITCH 0 ON _ lt thermostat the fan starts and stops with the heating equipment In cooling the fan starts and stops with the cooling equipment Make certain all equipment responds properly to the thermostat Power Stealing Unlike hard wired thermostats which are powered directly from the system transformer the T8000C Thermostat steals power through the heating and cooling system control
21. ture setpoint to 52 F 11 C IL M12582A Press the A and W keys simultaneously for more than two seconds to enter installer setup When released a software revision code is displayed M12583A Press the A key yu Factory config uration Li FC is displayed A m3 typical example is shown but information M12584A displayed varies by model This information is for factory use only a UL t L1 T8000C T8001C AND T8024D PROGRAMMABLE THERMOSTATS Optional System Checkout When in steps 1c and 1d only pressing the W key can be used to turn heat or cool outputs on and off Change the SYSTEM switch setting to test heat or cool outputs No action takes place If the system switch is in the Off position Examples System setting at HEAT If heat is on pressing the V key turns it off if heat is off pressing the V key turns it on System setting at COOL If cool is on pressing the W key turns it off if cool is off pressing the W key turns it on The five minute minimum off time is bypassed NOTE For T8024D a second press W turns on the 2nd stage N CAUTION Allow compressor to remain off for 5 minutes before restarting Refer to manufacturer recommendations NOTE In Installer Setup only each press of the A key momentarily displays 1 Each press of the V key momentarily displays 2 When the keys are released these one digit codes are no
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