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T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS

69-1510-4

10

THERMOSTAT INFORMATION

1.

Press the Time 

 key to access the thermostat 

information.

2.

Press the increase   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).

3.

Press the increase   key again to display the   
software identification code.                               
(Example: 02 = software ID code 2).

4.

Press the increase   key again to display the soft-
ware revision number.                                          
(Example: 001 = Revision number 1).

5.

Press the increase   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 system test times out after four minutes          
without any key presses.

CHECKOUT

Outdoor Temperature Sensor 

(Select Models)

Allow the outdoor temperature sensor to absorb the 
outdoor air for a minimum of five minutes before taking a 
reading.

M14613

M14614

M14615

M14616

M14617

Summary of Contents for Chronotherm IV T8602D

Page 1: ...tat about 1 5m 5 ft above the floor in an area with good air circulation at average temperature See Fig 1 Do not install the thermostat where it can be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys unheated uncooled areas such as an outside wall behind the thermostat Wallplate Installation Th...

Page 2: ... Securely tighten each terminal screw 3 Push excess wire back into the hole 4 Plug the hole with nonflammable insulation to pre vent drafts from affecting the thermostat Fig 3 Typical hookup in heat and cool system with two transformers 1 5 METERS 5 FEET YES NO NO NO M10856 WIRES THROUGH WALL WALL MOUNTING HOLES M15044 MOUNTING SCREWS WALL ANCHORS 2 L1 HOT L2 M10855 FAN RELAY Y G THERMOSTAT RC HEA...

Page 3: ...PPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT PUMP SYSTEMS AVAILABLE ON SELECT MODELS OT WIRES MUST HAVE A SEPARATE CABLE FROM THE THERMOSTAT CABLE 2 2 2 1 3 OT OT OUTDOOR TEMPERATURE SENSOR 3 RC W MILLIVOLT HEATING ONLY WALLPLATE R M2931 TH TH PP PP MILLIVOLTAGE GAS CONTROL LIMIT CONTROL MILLIVOLTAGE GENERATOR PILOTSTAT CON...

Page 4: ...sly Auto Fan operates with equipment Fig 10 Thermostat System and Fan key locations NOTE Always press the keys with your fingertip or sim ilar blunt tool Sharp instruments like a pen or pencil point can damage the keyboard M14624 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 S...

Page 5: ...ed See Fig 11 and 12 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 backward press the Time key To exit the Installer Setup press Run Program Fig 11 Display of all LCD segments Fig 12 Display of Installer Setup number and setting CAUTION Electric Heat Configuration Hazard Can cause equipment damag...

Page 6: ...uto only Adaptive Intelligent Recovery control 13 1 Conventional recovery system starts recovery at programmed time Adaptive Intelligent Recovery control is activated system starts early so setpoint is reached by start of program period Not Used 14 thru 15 Clock format 16 0 12 hour clock format 1 24 hour clock format Not Used 17 thru 23 Outdoor temperature display select models 24 0 No outdoor tem...

Page 7: ...s to 1 5 C higher than actual room temperature 5 Display adjusts to 5 C lower than actual room temperature 1 0 Display adjusts to 1 0 C lower than actual room temperature 1 5 Display adjusts to 1 5 C lower than actual room temperature Furnace Air Filter Timer 43 0 Off 1 2 3 4 1 10 days 2 30 days 3 60 days 4 120 days Time counted when heat cool or fan is running Humidifier Pad Monitor 44 0 Off 1 2 ...

Page 8: ...gram to exit the System Test M14619 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Set Current Day Time Wake Leave Return Sleep Day Heat Cool Settings Daylight Time Copy Set Day Time Mon PM M14620 Time Set Program System Fan Run Program Hold Temp Set Current Day Time Wake Leave Return Sleep Day Day Heat Cool Settings Daylight Time Copy Set Day Time PM Tue M14621 Time Set Pr...

Page 9: ...escription Heating Equipment System Test Time 10 Enter heating equipment system test 11 Heat comes on When Installer Setup number 2 is 1 the system fan is also energized 10 Heat and system fan turn off Cooling Equipment System Test Time 30 Change from heating to cooling equipment system test 31 Cool and system fan come on 30 Cool and system fan turn off Fan Equipment System Test Time 40 Change fro...

Page 10: ... identification code Example 02 software ID code 2 4 Press the increase key again to display the soft ware revision number Example 001 Revision number 1 5 Press the increase 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 system test times out after four minutes without any key presses CHECKOUT Outdoor Temperatur...

Page 11: ...C 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 If 24 Vac is present proceed with troubleshooting Thermostat minimum off time is activated Wait up to five minutes for the system to respond System selection is not set to Heat Set system selection to Heat Heating setpoint is below ...

Page 12: ... fan operation Conventional heating equipment turns on the fan when the furnace has warmed up to a setpoint Wait a minute after seeing the on indicator and then check the registers Heating or cooling equipment is not operating Verify operation of heating or cooling equipment in self test Outdoor tempera ture not displayeda Option not activated Enter Installer Setup number 24 and set to 1 Thermosta...

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