T8602C CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS
5 69-1670
FAN OPERATION SWITCH
The thermostat fan operation switch, labeled FUEL
SWITCH in Fig. 11 is factory set in the F position. This is
the correct setting for most systems. If your system is an
electric heat system, set the switch to E. The E setting
allows the fan to turn on immediately with the heating or
cooling in a system where the G terminal is connected.
Fig. 11. Fan operation switch.
INSTALLER SETUP
NOTE: For most applications, the thermostat factory-
settings do not require changing. Review
factory settings in Table 3 and if no changes are
necessary, go to the Installer Self-Test section.
The Installer Setup is used to customize the thermostat
to specific systems. Some of the options include
temperature display 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 T8602.
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 segments appear for approximately three
seconds before the number is displayed. See Fig. 12
and 13.
—To advance to the next Installer Setup, press the
Time ∆ key.
—To change a setting, use the increase or
decreasekey.
—To scroll the Installer Setup numbers backward, press
the Time ∇ key.
—To exit the Installer Setup, press Run Program.
Fig. 12. Display of all LCD segments.
Fig. 13. Display of Installer Setup number and
setting.
IMPORTANT
Only configurable numbers are shown on the
device. Example: If thermostat does not have a
system key, Installer Setup Number 12 will not
be displayed. Review Table 3 factory-settings
and mark any desired changes in the Actual
Setting column. When Installer Setup is com-
plete, review the settings to confirm that they
match the system.
M1267
6
FUEL SWITCH
M1901
4
Mon
Wake Leave Return Sleep
Room
Wait
System
Hea
t
Of
f
Coo
l
AM
PM
Hold for
Heat Cool
Repl Batt
Recovery
DST
TueWed Thu Fri SatSun
Days
Temporary Setting
Set Program Set Day/Time
M14618
INSTALLER SETUP
NUMBER DISPLAY
(COLUMN 2 OF TABLE 3)
FACTORY SETTING OR OTHER
CHOICE DISPLAY (COLUMN 3
OR 5 OF TABLE 3)