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T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS

7

69-1626

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 using the new settings. Be sure 

to set the current day and time immediately.

Setting Current Day and Time

1.

Press Set Current Day/Time.

NOTES: 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.

NOTES: Sun=Sunday, Mon=Monday, Tue=Tuesday, 

Wed=Wednesday, Thu=Thursday, Fri=Friday, 
Sat=Saturday.

3.

Press Time 

 or Time 

▼ 

until the current time is 

displayed.

NOTES: Tapping the Set Current Day/Time changes the 

time in one hour increments.

NOTES: If the current time is Daylight Savings Time, 

press Daylight Time until DST is displayed.

4.

Press Run Program.

INSTALLER SELF-TEST

Use the Installer Self-Test to check the thermostat oper-

ation. Refer to Table 4 for a list of the available self-tests. 

To start the self-test:

CAUTION

Equipment damage can occur if the 

compressor is cycled too quickly.

The minimum off time for compressors is 

bypassed during the Installer Self-Test. 

Press and hold the increase 

 and decrease 

 keys at 

the same time until 10 appears. All segments of the 
display are displayed before the 10 appears. See Fig. 12 

and 13.

Fig. 12. Display of all LCD segments.

Fig. 13. Display of test number.

Refer to Table 5 for the directions and results of the 

specific tests.

NOTE: Press Time 

 to advance to the next test and 

Time 

▼ 

to go back to the previous 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

M14621

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

Set Day/Time

AM

Tue

M14622

Time

Set Program

System

Fan

Run

Program

Hold Temp

Set Current

Day/Time

Wake

Leave

Return

Sleep

Day

Heat/Cool

Settings

Daylight

Time

Daylight

Time

Copy

Set Day/Time

AM

DST

Tue

M14623

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

Wake

Room

System

Fan

Heat

Auto

AM

DST

Tue

Table 4. Tests Available In The Installer Self-Test.

Test 

Number

System Test Description

10-19

Heating 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 19

Keyboard keys test

70-79

Thermostat information including date code 
and software versions are displayed

Table 5. Installer Self-Test Options.

Key to 

Press

Test 

Number

Description

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

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

M14612

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 ...

Page 12: ...m yourhome Printed in U S A on recycled paper containing at least 10 post consumer paper fibers XWRPDWLRQ DQG RQWURO 6ROXWLRQV RQH ZHOO RQH ZHOO LPLWHG RQH ZHOO LPLWpH RXJODV ULYH 1RUWK QDPLF ULYH ROGHQ 9DOOH 01 6FDUERURXJK 2QWDULR 0 9 ...

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