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Honeywell T8611G Chronotherm IV Deluxe, Manual, Page: 20 / 24

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Honeywell T8611G Chronotherm IV Deluxe Manual Download Page 20

T8611G CHRONOTHERM

®

 IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTAT

68-0165—1

20

Table 12. Troubleshooting Information (continued).

CROSS REFERENCE

All SUPER TRADELINE® Chronotherm® IV thermostats are different from the existing Chronotherm® III devices as
summarized in Table 13.

Table 13. Difference Between Chronotherm® III Thermostats And Chronotherm® IV Thermostats.

Feature/Function

Chronotherm® III Family

Chronotherm ® IV Family

Programming

5-1-1 day programming

7-day programming

Changeover

Automatic or manual changeover models available

Automatic/manual changeover selectable

Installer Configuration

Field settings made via screws on the back of the
thermostat

Field settings made through the keyboard

System switching

Mechanical switch

Keyboard entry

Fan switching

Mechanical switch

Keyboard entry

Device color

Beige or Premier White® color

Taupe or Premier White® color

Symptom

Possible Cause

Action

Cooling will not come
on (Continued).

Thermostat minimum off time is
activated.

•

Wait up to five minutes for the system to respond.

•

Enter Installer Setup number 33. Reconfigure minimum off
time (if required).

System selection is not set to Cool.

Set system selection to Cool.

Cool setpoint is above room
temperature.

Check cooling setpoint. Set cooling setpoint to desired
temperature.

Heating or cooling
come on momentarily
and shut off

Heat or cool circuit is opening up  
or becoming high impedance.

Add resistor in parallel with load or install interface relay.

System on indicator
(flame=heat,
snowflake=cool) is
displayed, but no
warm or cool air is
coming from the
registers.  

Heating or cooling equipment is  
not operating.

Verify operation of heating or cooling equipment in System Test.

Outdoor temperature  
not displayed

a

Option not activated.

Enter Installer Setup number 24 and set to 1. Thermostat must
have OT terminals and a C7089B1000 installed.

Outdoor temperature
display is incorrect

a

Outdoor sensor is connected
incorrectly.

Refer to C7089B1000 installation instructions and check wiring
between the thermostat and sensor.

Wrong sensor.

Replace sensor with C7089B1000 sensor.

a Available on select models

Summary of Contents for T8611G Chronotherm IV Deluxe

Page 1: ...door 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...

Page 2: ...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 u...

Page 3: ...e 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 ...

Page 4: ... 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 th...

Page 5: ...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 Z User defined Light Emitting Diodes LEDs Annunciation Y Y1 C1 M Y Stage 1 compressor contactor Output 24V powered contact a Some OEM models label the terminal for transformer common B Table 4 Terminal Designations and Descriptio...

Page 6: ...ptions M10405A Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy 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 OPE...

Page 7: ...se 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 T8611...

Page 8: ...ver Adaptive Intelligent Recovery control 13 0 Adaptive Intelligent Recovery control is activated system starts early so setpoint is reached by start of program period 1 Conventional recovery system starts recovery at programmed time Degree temperature display 14 0 Temperature is displayed in F 1 Temperature is displayed in C Not used 15 Clock format 16 0 12 hour clock format 1 24 hour clock forma...

Page 9: ...actual room temperature 3 thru 3 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 IMPO...

Page 10: ...nd 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 Program System Fan Run Program Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Auto System Fan Wake Room AM DST Tue Heat Aux Ht Heat Auto System Fan Off A...

Page 11: ...n code Example 02 software ID code 2 M4932A Key to Press Test Number Description Heating Equipment System Test Time 10 Enter heating equipment System Test 11 Stage one heat comes on The system fan is also energized 12 Stage two heat comes on Stage one heat and system fan remain on 11 Stage two heat turns off 10 Stage one heat and system fan turn off Emergency Heating Equipment System Test Time 20 ...

Page 12: ...rn until the time is blank The fan setting feature is available on select thermostat models M10229 5 Press the increase key again to display the EEPROM identification code Example 314 EEPROM ID 314 M4933A 6 Press the Run Program key to exit the system test The system test times out after four minutes without any key presses Table 9 Default Time Setpoints and Fan Settings Period Start Time Heat Set...

Page 13: ...M Tue Set Day Time M10314 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Time Heat Cool Settings Daylight Time Copy AM Tue Set Day Time NOTE If the current time is Daylight Savings Time press Daylight Time until DST is displayed M10315 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Set...

Page 14: ... and cooling M10321 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Heat Cool Settings Daylight Time Copy Auto System Fan Wake Mon AM Cool Set Program Start Time Setting Heat Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Auto System Fan Wa...

Page 15: ...nd temperature setting are cleared approximately 3 seconds NOTE Wake cannot be cleared M10331 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Heat Sat Leave Set Program Start Time Setting Leave 4 Repeat steps 2 and 3 for all the periods to be cleared 5 Press Run Program M10332 Time Set Program System Fan Run P...

Page 16: ...days is displayed 1 to 256 days Example 18 Hold will override the daily programs for 18 days M10338 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Heat Wake Hold for Setting Time 3 Press Wake Leave Return or Sleep to select the period the program will start Example Return thermostat will stop the Hold at the ...

Page 17: ... and electromechanical thermostats See Fig 13 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 ...

Page 18: ...rees 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 The Chronotherm IV uses two recovery ramps one for the compressor and one for the auxiliary heat Once the room temperature intersects the compressor ramp the compressor snaps on until the setpoint is reached If the temper...

Page 19: ...eating higher or the cooling lower The setpoint temperature range stops were configured Check Installer Setup numbers 34 and 35 and reconfigure the setpoint stops Heating will not come on No power to the thermostat Check for 24 Vac between R and C 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 i...

Page 20: ...nimum off time is activated Wait up to five minutes for the system to respond Enter Installer Setup number 33 Reconfigure minimum off time if required System selection is not set to Cool Set system selection to Cool Cool setpoint is above room temperature Check cooling setpoint Set cooling setpoint to desired temperature Heating or cooling come on momentarily and shut off Heat or cool circuit is o...

Page 21: ...figure changeover in Installer Setup 12 and O B terminal in 29 jumper Y1 to W1 taupe color T8611G1111 Trane Premier White color part no TAYSTAT501 T8611G2002 Wiring differences old new F L B C configure changeover in Installer Setup 12 and O B terminal to O in 29 taupe color T8611G1145 Canadian TRADELINE thermostat Honeywell logo Premier White color degree C T8611G2002 Configure changeover in Inst...

Page 22: ...DELINE thermostat Honeywell logo Premier White color T8611G2002 Wiring differences old new B C H B X L configure O B terminal in Installer Setup 29 taupe color T8611R1174 Phillilps Energy T8611G2002 Configure O B terminal in Installer Setup 29 no P terminal T8611R1182 Armstrong Premier White color T8611G2002 Configure O B terminal in Installer Setup 29 no P terminal taupe color T8611R1190 Inter Ci...

Page 23: ...ORMER HEAT RELAY 2 OT OT OUTDOOR SENSOR COOLING OR HEATING CHANGEOVER VALVE O B X2 L X1 EQUIPMENT MONITOR 2 EQUIPMENT MONITOR 1 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 W2 L1 HOT L2 M10823 FAN RELAY Y1 G E THERMOSTAT C R W1 COMPRESSOR CONTACTOR EM HT RELAY TRANSFORMER HEAT RELAY 2 OT OT OUTDOOR SENSOR COOLING OR HEATING CHANGEOVER VALVE O B X2 L X1 EQUIPMENT MO...

Page 24: ...ilding Control Honeywell Limited Honeywell Limitée 155 Gordon Baker Road North York Ontario M2H 3N7 Honeywell Latin American Region 480 Sawgrass Corporate Parkway Suite 200 Sunrise FL 33325 Helping You Control Your World 68 0165 1 J H Rev 10 97 Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 Printed in U S A on recycled paper containing at least 10 pos...

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