69-1055—1
6
T8524C,D MULTISTAGE MICROELECTRONIC THERMOSTATS
Installer Setup
Number
(Press i key
Factory-Setting
Other Choices
(Press ▲ or ▼ key to change)
Actual
Select
to change)
Display Description Display Description Setting
Heating
setpoint range
stop
a
34 90 Heating setpoint can be
set no higher than 90°F
40 thru
90
Number can be set
anywhere between 40 and
90 in 1°F increments
Cooling
setpoint range
stop
a
35 45
b
Cooling setpoint can be
set no lower than 45°F
b
45
b
thru
99
Number can be set
anywhere between 45
b
and
99 in 1°F increments
Not used 36 — — — — —
Temperature
display
adjustment
37 00 No difference in
displayed temperature
and actual room
temperature
-3 thru
3
1—Display adjusts to 1°F
higher than actual room
temperature
2—Display adjusts to 2°F
higher than actual room
temperature
3—Display adjusts to 3°F
higher than actual room
temperature
-1—Display adjusts to 1°F
lower than actual room
temperature
-2—Display adjusts to 2°F
lower than actual room
temperature
-3—Display adjusts to 3°F
lower than actual room
temperature
Table 2. Thermostat Installer Setup Options (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
a
Available on select models.
b
T8524D is 48°F (9°C).
IMPORTANT
Review the settings to confirm that they match
the system.
INSTALLER SYSTEM TEST
Use the Installer System Test to check the thermostat
configurations and operation. Refer to Table 3 for a list of
the available system tests.
To start the system test::
NOTE: The minimum off time for compressors is
bypassed during the Installer System 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.
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 (T8524D only) can be turned
on and off.
60-69 System key or system switch position test
70-79 Thermostat information including date code
and software versions are displayed
IMPORTANT
T8524C models must set the switches to the
equipment that is being checked for the equip-
ment to operate.
NOTE: Press and hold the increase ▲ and decrease ▼
keys for three seconds to exit the System Test.
The System Test times out after five minutes
without any key presses.
Table 3. Tests Available In The Installer System Test.
