
T8601D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS
69-1410—2
4
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 Self-Test,
• display outdoor temperature (select models),
• set the system operation,
• set the fan operation.
See Fig. 8 for the location of the keys.
Fig. 8. T8601D key locations and descriptions.
SETTINGS
System and Fan Settings
The System default setting is Heat and the Fan default
setting is Auto. Use the System and Fan keys to change
the settings. See Fig. 9. 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:
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.
Fig. 9. Thermostat 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.
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
O
R SCR
O
LL
F
O
RWARD THR
O
UGH
INSTALLER SETUP
O
PTI
O
NS
DECREASE TEMPERATURE
SETTING
O
R SCR
O
LL
BACKWARD THR
O
UGH
INSTALLER SETUP
O
PTI
O
NS
DISPLAY INF
O
RMATI
O
N
SUCH AS PRESENT
SETTINGS AND
O
UTD
OO
R
TEMPERATURE
RETURN T
O
N
O
RMAL
O
PERATI
O
NS
ENTER
INDEFINITE
O
R TIMED
H
O
LD M
O
DE
SET CURRENT
DAY AND TIME
SET CURRENT
O
R
PR
O
GRAM DAY
CHANGE BETWEEN
DAYLIGHT SAVINGS
AND STANDARD TIME
INCREASE TIME SETTING
O
R SCR
O
LL F
O
RWARD
THR
O
UGH INSTALLER SETUP
AND SYSTEM TEST
DECREASE TIME SETTING
O
R
SCR
O
LL BACKWARD THR
O
UGH
INSTALLER SETUP AND SYSTEM TEST
C
O
PY
O
NE PR
O
GRAMMED
DAY T
O
AN
O
THER DAY
SET WAKE TIMES
AND SETP
O
INTS
CHANGE BETWEEN
HEATING AND C
OO
LING
SETP
O
INTS
SET LEAVE TIMES
AND SETP
O
INTS
SET RETURN TIMES
AND SETP
O
INTS
SET SLEEP TIMES
AND SETP
O
INTS
SELECT SYSTEM
O
PERATI
O
N
SELECT FAN
O
PERATI
O
N
M14625
Hold Temp
Run
Program
Copy
Daylight
Time
Set Current
Day/Time
System
Fan
Time
Set Program
Day
System
Fan
Wake
Leave
Return
Sleep
Heat/Cool
Settings