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T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS

5

69-1626

— 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. 10. Display of all LCD settings.

Fig. 11. Display of Installer Setup 

number and setting.

CAUTION

Equipment Damage Hazard.   

System running without fan can damage 
equipment.

Be sure to configure heat pump and electric heat 
systems to 1 in Installer Setup number 2. 

IMPORTANT

Only configurable numbers are shown on the 

device. Example: If thermostat does not have a 
System key, Installer Setup Number 12 is not 

displayed. Review Table 3 factory-settings and 
mark any desired changes in the Actual Set-

tings column. When Installer Setup is complete, 
review settings to confirm they match system. 

M14559

Aux Ht

Set Day/Time

Set Program

Mon
Wake Leave Return

Sleep

Outdoor

Room

Filter

Wait

System

Fan

Em Heat

On

Auto

Off

Cool

Auto

AM

PM

Hold for

Heat

Cool

Repl Batt

Recovery

DST

Tue Wed Thu Fri Sat Sun

Days

Temporary Setting

Em Ht

M14618

INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2 OF TABLE 3)

FACTORY SETTING OR OTHER 
CHOICE DISPLAY (COLUMN 3
OR 5 OF TABLE 3)

Table 3. Thermostat Installer Setup Options.

Select

Installer Setup 

Number 

(Press Time 

 

key to change)

Factory-Setting

Other Choices 

(Press 

 or 

▼ 

key to change)

Actual 

Setting

Display

Description

Display

Description

Not used

1

Fan operation

a

2

0

Conventional application 

where equipment control 
fan operation in heat mode

1

Heat pump or electric 

heat applications where 
thermostat controls fan 

operation in heat mode

Not used

3

Heating cycle 
rate

4

6

6—6 cph used for conven-

tional heat

1, 3 or 9 1—1 cph used for radiant

floor heat, gravity 

system

3—3 cph used for hot

water systems or high 
efficiency furnaces

9—9 cph used for electric

heat systems

Not used

5 thru 11

System setting 

adjustment

12

1

Manual changeover

0 or 2

0—Auto changeover

2—Auto only

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 format

Summary of Contents for T8601D

Page 1: ...ully 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 ...

Page 2: ...illed 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 Refer to Fig 3 through 5 for typical hookups A letter code is located near each terminal for identification CAUTION Electrical Haz...

Page 3: ...0353 FAN RELAY Y G THERMOSTAT C HEAT RELAY R W COMPRESSOR CONTACTOR TRANSFORMER B HEAT DAMPER COOL DAMPER O 1 POWER SUPPLY 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 L1 HOT L2 M1035...

Page 4: ...ngeover and outdoor temperature display Installer Setup numbers are listed in Table 3 The table includes all the configuration options and the factory settings for the T8601 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...

Page 5: ...orary Setting Em Ht M14618 INSTALLER SETUP NUMBER DISPLAY COLUMN 2 OF TABLE 3 FACTORY SETTING OR OTHER CHOICE DISPLAY COLUMN 3 OR 5 OF TABLE 3 Table 3 Thermostat Installer Setup Options Select Installer Setup Number Press Time key to change Factory Setting Other Choices Press or key to change Actual Setting Display Description Display Description Not used 1 Fan operationa 2 0 Conventional applicat...

Page 6: ...ssor 33 5 5 minute minimum off time for the compressor 0 thru 4 Minimum number of minutes 0 thru 5 the compressor is off between calls for the compressor Temperature range stops in heating 34 90 Highest setpoint heating can be set to 40 to 89 Temperature range 1 F increments heating setpoint can be set to Temperature range stops in cooling 35 45 Lowest setpoint cooling can be set to 46 to 99 Tempe...

Page 7: ... test Press Run Program to exit the self 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 M...

Page 8: ...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 self test The self test times out after four minutes without any key presses CHECKOUT Outdoor Temperature Sensor select models Allow the outdoor temperature sensor to soak in the outdoor air for a minimum of five minutes before tak...

Page 9: ...al is connected to the system transformer Check for 24 Vac between R and 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 replace any broken wires and tighte...

Page 10: ...entional 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 temperature not displayed a Option not activated Enter Installer Setup number 24 and set to 1 Thermostat must have OT term...

Page 11: ...T8601D CHRONOTHERM IV DELUXE PROGRAMMABLE THERMOSTATS 11 69 1626 ...

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