NOTE: You can view the number of days remaining at
any time by pressing the i key three or four
times. If more than one timer is active, all active
timers show sequentially when pressing the i
key several times.
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
operation. Refer to Table 4 for a list of the available
Equipment Damage Hazard.
Minimum compressor off-time is bypassed
during Installer System Test.
Avoid cycling compressor quickly.
To start the system test:
Press and hold the increase
the same time until 10 appears. All segments of the
display are displayed before the 10 appears. See Fig. 12
Table 4. Tests Available In Installer System Test.
System Test Description
Heating equipment can be turned on and
Cooling equipment can be turned on and
Fan equipment can be turned on and off.
60 0 to
Keyboard keys test.
Thermostat information, including date
code and software versions, is displayed.
Heating Equipment System Test
Cooling Equipment System Test
Fan Equipment System Test
T8600D CHRONOTHERM® IV DELUXE PROGRAMMABLE THERMOSTATS
Table 5. Installer System Test Options.
Enter heating equipment system test.
Heat comes on. When Installer Setup number 2 is 1; the system fan is also energized.
Heat and system fan turn off.
Change from heating to cooling equipment system test.
Cool and system fan come on.
Cool and system fan turn off.
Change from cooling to fan equipment system test.
Tue Wed Thu Fri Sat Sun
Wake Leave Return Sleep
Fig. 12. LCD segments display.
Fig. 13. Test number display.
Refer to Table 5 for the directions and results of the
NOTE: Press Time ∆ to advance to the next test and
Time ∇ to go back to the previous test. Press
Run Program to exit the system test