Honeywell Chronotherm 4 Manual
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T8611G Chronotherm ® IV Deluxe Programmable Heat Pump Thermostat PRODUCT DATA ® U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • All Rights Reserved APPLICATION The T8611G Chronotherm® IV Deluxe Programmable Heat Pump Thermostat provides electronic control of 24 Vac single-zone heat pump systems. FEATURES •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.•Back lighting the large display makes the LCD very easy to read. •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 models (less inventory, no longer need to carry separate models to get these features). — °F or °C temperature display; — automatic or manual changeover; — adjustable heating cycle rate. •Minimum off time protects the equipment and extends the equipment life. •Easy installation, setup and system test saves installer time and increases productivity. •System test simplifies troubleshooting and saves time by overriding the time delays. •Models available with defrost control for more efficient heat pump operation. •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. •Universal Versaguard™ Thermostat guards available for added security. Contents Application ........................................................................... 1 Features .............................................................................. 1 Specifications ...................................................................... 2 Ordering Information ........................................................... 2 Installation ........................................................................... 3 Wiring .................................................................................. 4 Settings ............................................................................... 6 Installer Setup ..................................................................... 7 Installer System Test ........................................................... 10 Thermostat Information ....................................................... 11 Programming ....................................................................... 12 Operation ............................................................................ 17 Troubleshooting Guide ........................................................ 19 Cross Reference ................................................................. 20 Wiring Diagrams .................................................................. 23 68-0165-1
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 2 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 Relations Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 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. 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 Model T8611G Thermostats provide features listed in Table 1. Table 1. Thermostat Features. Electrical Rating (Nominal Range): 24 Vac, 50/60 Hz. 20 to 30 Vac, 50/60 Hz. Batteries: No batteries required. Auxiliary Heat and Emergency Heat Indication: Thermostat display indicates when Auxiliary Heat or Emergency Heat are activated. 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 30 minutes. Light Emitting Diodes (LEDs): Two user-defined LEDs (select models). Two additional LEDs available on some models. System Current Draw: 6 VA maximum at 30 Vac, 50/60 Hz.Output Relay Load Ratings: See Table 2. Ta b l e 2. Maximum Amps at 30 Vac. ChangeoverSystem SelectionFan Selection Comments Automatic Em Heat- Heat-Off- Cool-AutoOn-Auto System and fan selections are done by keyboard. Relay Running (A) Inrush (A) Fan 0.5 2.5 Heat (all stages) 1.5 3.5 Cool (all stages) 1.5 7.5 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: 45°F to 95°F (7°C to 35°C). Differential: 3°F (1.5°C). Default Settings: see Table 3. Table 3. Default Setpoints. Period TimeHeat SetpointCool SetpointFan Setting Wake 6:00 AM 70°F (21°C) 78°F (25.5°C) Auto Leave 8:00 AM 62°F (16.5°C) 85°F (29.5°C) Auto Return 6:00 PM 70°F (21°C) 78°F (25.5°C) Auto Sleep 10:00 PM 62°F (16.5°C) 82°F (28°C) Auto Minimum Stage Operation Time: Minimum On (Heat and Cool) (select models): factory setting 2 minutes; option 0 minutes. Minimum Off (Cool and Heat Pump): factory setting 5 minutes; option 0 minutes. Humidity Ratings: 5% to 90% RH, noncondensing. Clock Accuracy: ±1 minute per month. Finish: Taupe or Premier White® color.
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 3 Dimensions: See Fig. 1. Mounting Means: The thermostat mounts on a wallplate. The wallplate mounts horizontally on a wall or outlet box with two no. 6 x 32 screws (included). Accessories: C7089B Outdoor Temperature Sensors (69-1020). Universal Versaguard™ Thermostat guards. RECYCLING NOTICE If this control is replacing a control that contains mercury in a sealed tube, do n ot 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 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. Fig. 1. Dimensions of thermostat in in. (mm). 6-1/16 (154)1/2 (13)1-9/16 (40) 3-3/4 (95) 3-1/2 (89) 1-13/16 (46) 3/8 (10) 2-3/4 (70) 3-5/8 (92) M10359
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 4 Fig. 2. Typical location of 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.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 Fig. 3. WIRES THROUGH WALLWALL MOUNTING HOLES M10822 MOUNTING SCREWS WALL ANCHORS (2) 5 FEET [1.5 METERS] YES NO NO NO M10106 Fig. 3. Mounting the wallplate.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 and 16 for typical hookups. A letter code is located near each terminal for identification. Refer to Table 4 for terminal designations.
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 5 Standard Terminal DesignationsAlternate Terminal Designations Typical Connection Function Terminal Type B—Heating changeover valve Output 24V powered contact CBa, C, X1, X2 Common Input EKEmergency heat relay Output 24V powered contact GFFan relay Output 24V powered contact LA, A1, C, L, X, Z User defined Light Emitting Diodes (LEDs) Annunciation — ORCooling changeover valve Output 24V powered contact O/B — Cooling or heating changeover valve (configure in Installer Setup 29)Output 24V powered contact OT, OT — Outdoor temperature sensor (C7089B) Input — P—Defrost Output 24V powered contact RV24V system or heating transformer Input — RC — 24V cooling transformer Input — W1 H1, R3 Stage 1 heating relay Output 24V powered contact W2 H2, R4, W3, Y Stage 2 heating relay or auxiliary heat relay Output 24V powered contact X1, X2, X3, X4 A, A1, A2, C, L, X, ZUser defined Light Emitting Diodes (LEDs) Annunciation — Y, Y1 C1, M, Y Stage 1 compressor contactor Output 24V powered contact aSome OEM models label the terminal for transformer common B. Table 4. Terminal Designations and Descriptions. 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 IMPORTANT Use 18 gauge, color-coded thermostat cable for proper wiring. 2.Securely tighten each terminal screw. 3.Push excess wire back into the hole. 4.Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat. M4826 FOR WRAPAROUND INSERTION STRIP 7/16 IN. (11 MM).FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). Fig. 4. Proper wiring technique.
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 6 Mounting Thermostat Wallplate The thermostat mounts on the wallplate after they are installed. 1.Engage tabs at the top of thermostat and wallplate. See Fig. 5. 2.Press lower edge of case to latch. NOTE: To remove the thermostat from the wall, first pull out at the bottom of the thermostat; then remove the top. SETTINGS 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 System Test, •display outdoor temperature (select models), •set the system operation, •set the fan operation. See Fig. 6 for the location of the keys. Fig. 5. Mounting thermostat on wallplate. M10675 TWO LED INDICATORS M15043 B. PRESS LOWER EDGE OF CASE TO LATCH. A. ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE. Fig. 6. T8611G key locations and descriptions. M10405A Time Set Program System Fan Run Program Hold TempSet Current Day/TimeWakeLeave Return Sleep DayHeat/Cool Settings Daylight TimeCopy INCREASE TEMPERATURE SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP OPTIONS DECREASE TEMPERATURE SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP OPTIONS DISPLAY INFORMATION SUCH AS PRESENT SETTINGS AND OUTDOOR TEMPERATURE RETURN TO NORMAL OPERATIONS ENTER INDEFINITE OR TIMED HOLD MODE SET CURRENT DAY AND TIME SET CURRENT OR PROGRAM DAY CHANGE BETWEEN DAYLIGHT SAVINGS AND STANDARD TIMEINCREASE TIME SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP AND SYSTEM TEST DECREASE TIME SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP AND SYSTEM TEST COPY ONE PROGRAMMED DAY TO ANOTHER DAYSET WAKE TIMES AND SETPOINTS CHANGE BETWEEN HEATING AND COOLING SETPOINTS SET LEAVE TIMES AND SETPOINTS SET RETURN TIMES AND SETPOINTS SET SLEEP TIMES AND SETPOINTS SELECT SYSTEM OPERATION SELECT FAN OPERATION LED Indication Two LED indicators are located in the upper right of the thermostat. They indicate when a CHECK or FAIL signal is sent to the thermostat from the system. See Fig. 7. Fig 7. LEDs location
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 7 System and Fan Settings The system default setting is Heat and the fan default setting is Auto. Use the System and Fan keys or switches to change the settings. See Fig. 8. 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: Em Heat: Emergency heat output is controlled as Stage 1 heat. Cooling system is off. Compressor is de- energized. 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. INSTALLER SETUP NOTE: For 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 ▲ and decrease ▼ keys until the first number is displayed. All display segments appear for approximately three seconds before the number is displayed. See Fig. 9 and 10. —To advance to the next Installer Setup, press the Time ▲ ▲ key. —To change a setting, use the increase ▲ or decrease ▼ key. —To scroll the Installer Setup numbers backwards, press the Time ▼ ▼ key. —To exit the Installer Setup, press Run Program. Fig. 8. T8611G 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. M15042 Hold Temp Run Program Copy Daylight TimeSet Current Day/Time System Fan Time Set Program DaySystem Fan WakeLeave ReturnSleep Heat/Cool Settings Period TimeHeat SetpointCool SetpointFan Setting Wake 6:00 AM 70°F (21°C) 78°F (25.5°C) Auto Leave 8:00 AM 62°F (16.5°C) 85°F (29.5°C) Auto Return 6:00 PM 70°F (21°C) 78°F (25.5°C) Auto Sleep 10:00 PM 62°F (16.5°C) 82°F (28°C) Auto Aux HtHeat Auto System FanOff Auto Wake Mon Wait In Room Outdoor%Humid Auto Sav AM PM Hold for Cool Repl Batt On Recovery DST Cool TueWedThuFriSatSun LeaveReturnSleep M10345 Set ProgramSet Day/TimeStart TimeTemporary Setting Enrg EmHeat Em Ht Fig. 9. Display of all the segments of the LCD. Fig. 10. Display of Installer Setup number and setting. M10404INSTALLER SETUP NUMBER DISPLAY (COLUMN 2 OF TABLE 6)FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 6)
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 8 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. Table 6. Thermostat Installer Setup Options. (continued) Installer Setup Number (Press Time ▲ key toFactory-SettingOther Choices (Press ▲ or ▼ key to change) Actual Selectchange) Display Description Display DescriptionSetting Not used 1 thru 4 — — — — — Heating cycle 56Stage 2 3, 6 or 9 3—3 cph 6 (Not used) — — — 6—6 cph used for last stage of heat pump systems— 79Emergency heat 3, 6 or 99—9 cph used for electric heat Not used 8 thru 11 — — — — — System setting adjustment 12 1 Manual changeover 0 or 2 0—Auto changeover 2—Fixed auto changeover Adaptive Intelligent Recovery™ control13 0 Adaptive Intelligent Recovery™ control is activated (system starts early so setpoint is reached by start of program period)1Conventional recovery (system starts recovery at programmed time)— Degree temperature display14 0 Temperature is displayed in °F1Temperature is displayed in °C Not used 15 — — — — — Clock format 16 0 12-hour clock format 1 24-hour clock format Not used 17 and 18 — — — — — Extended fan operation in heating 19 0 No extended fan operation after the call for heat ends1Fan operation is extended 90 seconds after the call for heat ends. Extended fan operation in cooling 20 0 No extended fan operation after the call for cool ends1Fan operation is extended 90 seconds after the call for cool ends. Not used 21 thru 23 — — — — — Outdoor temperature display (models with OT terminals)24 0 No outdoor temperature is displayed1Outdoor temperature is displayed. Needs a C7089B1000 Outdoor Sensor to operate. Not used 25 thru 28 — — — — — O/B terminal energized in heating or cooling29 0 O/B terminal is energized for reversing valve in cooling1O/B terminal is energized for reversing valve in heating
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 9 Table 6. Thermostat Installer Setup Options (continued). Installer Setup Number (Press Time ▲ key toFactory-SettingOther Choices (Press ▲ or ▼ key to change) Actual Selectchange) Display Description Display DescriptionSetting Deadband 30 3 Heating and cooling setpoints can be set no closer than 3°F (1.5°C)4 thru 10Heating and cooling setpoints can be set no closer than the chosen value: 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) Not used 31 and 32 — — — — — Minimum off time for the compressor33 5 5 minute minimum off time for the compressor0 thru 4Minimum number of minutes (0 thru 5) the compressor will be off between calls for the compressor Temperature range stops in heating34 90 Highest setpoint heating can be set to40 to 89Temperature range (1°F increments) heating setpoint can be set to Temperature range stops in cooling35 45 Lowest setpoint cooling can be set to46 to 99Temperature range (1°F increments) cooling setpoint can be set to Not used 36 — — — — — Temperature display adjustment37 0 No difference in displayed temperature and actual room temperature-3 thru 31—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 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. Setting Current Day and Time 1.Press Set Current Day/Time. NOTE: On initial power up or after an extended power loss, 1:00 pm flashes on the display until a key is pressed.2.Press Day until the current day is displayed. NOTE: Sun=Sunday, Mon=Monday, Tue=Tuesday, Wed=Wednesday, Thu=Thursday, Fri=Friday, Sat=Saturday. M10312 Time Set ProgramSystem Fan Run Program Hold TempSet Current Day/TimeSet Current Day/TimeWakeLeave Return Sleep DayHeat/Cool Settings Daylight TimeCopyMonPM Set Day/Time M10313 Time Set ProgramSystem Fan Run Program Hold TempSet Current Day/TimeWakeLeave Return Sleep DayDayHeat/Cool Settings Daylight TimeCopy PM Tue Set Day/Time
T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT 68-0165—1 10 3.Press Time ▲ ▲ or Time ▼ ▼ until the current time is displayed. NOTE: Tapping the Set Current Day/Time will change the time in one hour increments. Fig. 11. Display of all the segments of the LCD. M10314 Time Set ProgramSystem Fan Run Program Hold TempSet Current Day/TimeWakeLeave Return Sleep Day Time Heat/Cool Settings Daylight TimeCopy AM TueSet Day/Time NOTE: If the current time is Daylight Savings Time, press Daylight Time until DST is displayed. M10315 Time Set ProgramSystem Fan Run Program Hold TempSet Current Day/TimeWakeLeave Return Sleep DayHeat/Cool Settings Daylight TimeDaylight Time Copy AM DST TueSet Day/Time 4.Press Run Program. 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. To start the system test: CAUTION The minimum off time for compressors is bypassed during the Installer System Test. Equipment damage can occur if the compressor is cycled too quickly. Press and hold the increase ▲ and ▼ decrease keys, at the same time, until 10 appears. All segments of the display are displayed for three seconds before 10 appears. See Fig. 11 and 12. M10316 Time Set ProgramSystem Fan Run ProgramRun ProgramHold TempSet Current Day/TimeWakeLeave Return Sleep DayHeat/Cool Settings Daylight TimeCopyAuto System Fan WakeRoom AM DST Tue Heat Aux HtHeat Auto System FanOff Auto Wake Mon Wait In Room Outdoor%Humid Auto Sav AM PM Hold for Cool Repl Batt On Recovery DST Cool TueWedThuFriSatSun LeaveReturnSleep M10345 Set ProgramSet Day/TimeStart TimeTemporary Setting Enrg EmHeat Em Ht M10257ATEST NUMBER Fig. 12. Display of test number. Table 7. Tests Available in Installer System Test. Refer to Table 8 for the directions and results of the specific tests. NOTE: Press Time ▲ ▲ to advance to the next test and Time ▼ ▼ to go to the previous test. Press Run Program to exit the system test. Test Number System Test Description 10-19 Heating equipment can be turned on and off 20-29 Emergency heat 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 60 19Keyboard keys test 70-79 Thermostat information including date code and software versions are displayed