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T8602C CHRONOTHERM
®
IV DELUXE PROGRAMMABLE THERMOSTATS
9 69-1670
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
operation. Refer to Table 4 for a list of the available
system tests.
CAUTION
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 and decrease keys at
the same time until 10 appears. All segments of the
display will be displayed before the 10 appears.
See Fig. 13 and 14.
Table 4. Tests Available In Installer System Test.
Fig. 14. Display of all LCD segments.
Fig. 15. 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 system test.
Table 5. Installer System Test Options.
NOTE: Press any key and the displayed numbers change. Press Time ∇ to go to the previous test and Time ∆ to go to
the next test. The Run Program key will not exit this test. Press Time ∆ or Time ∇ and then the
Run Program key to exit.
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.
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
Tue Wed Thu Fri Sat Sun
Days
Temporary Setting
Set Program Set Day/Time
M1461
2
Keys 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.
Cooling Equipment System Test
Time ∆ 30 Change from heating to cooling equipment system test.
31 Cool and system fan come on.
30 Cool and system fan turn off.
Fan Equipment System Test
Time ∆ 40 Change from cooling to fan equipment system test.
41 Fan comes on.
40 Fan turns off.
Key Operation System Test
Time ∆ 60 2 Change from fan to key operation system test.