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T8501A,B,C,D MICROELECTRONIC THERMOSTATS
Table 4. Installer Self-Test Options.
Table 3. Tests Available In The Installer
Self-Test Mode.
Refer to Table 4 for the directions and results of the
specific tests.
IMPORTANT
Models with system and fan switches must set
the switches to the equipment that is being
checked for the equipment to operate.
NOTE:
Press and hold the increase
▲
and decrease
▼
keys for three seconds to exit the self-test mode.
The self-test times out after five minutes without
any key presses.
INSTALLER SELF-TEST
Use the Installer Self-Test to check the thermostat
configurations and operation. Refer to Table 3 for a list of
the available self-tests.
To start the self-test:
NOTE:
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 two zeros appear. All segments of the
LCD are displayed before the two zeros appear.
(Continued)
Em HeatOffCool Auto Only
Heat Cool
OnAuto
System
Fan
Room
Outdoor
Em Ht Temporary Setting
Wait
%Humid
Aux Ht
Remote
Repl
Batt
M4844
M6792
TEST MODE
NUMBER
Test
Number
Self-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 (T8501D only) can be turned
on and off.
60-69
System key or system switch position test
(not available on T8501A)
70-79
Thermostat information including date code
and software versions are displayed
Key to
Press
Test
Mode
Number
Description
Heating Equipment Self-Test
i
10
Enter heating equipment self-test. (Set system switch to HEAT on switch models.)
▲
11
Heat comes on. When Installer Setup mode number 02 is 01, the system fan is also
energized.
▼
10
Heat and system fan turn off.
Cooling Equipment Self-Test
i
30
Change from heating to cooling equipment self-test. (Set system switch to COOL on switch
models.)
▲
31
Cool and system fan come on.
▼
30
Cool and system fan turn off.
Fan Equipment Self-Test (T8501D only)
i
40
Change from cooling to fan equipment self-test.
▲
41
Fan comes on.
▼
40
Fan turns off.
