T8501 MICROELECTRONIC THERMOSTATS
69-0925—4 6
IMPORTANT
Review the settings to confirm that they match
the system. Press Run Program to exit the
Installer Setup. The thermostat has saved the
Installer Setup changes and initiated a reset in
order to operate using the new settings. Be sure
to set the current day and time immediately.
Degree
temperature
display
14 00 Temperature is
displayed in °F
01 Temperature is displayed in °C
Not Used. 15 thru 18 — — — —
Extended fan
operation in
heating.
a,b
19 00 No extended fan
operation after the
call for heat ends.
01 Fan operation is extended 90
seconds after the call for heat
ends.
Extended fan
operation in
cooling.
a
20 00 No extended fan
operation after the
call for cool ends.
01 Fan operation is extended 90
seconds after the call for cool
ends.
Not Used. 21 thru 23 — — — —
Outdoor
temperature
display
a
24 00 No outdoor
temperature is
displayed.
01 Outdoor temperature is
displayed. Needs a C7089B1000
Outdoor Temperature Sensor to
operate.
Not Used. 25 thru 32 — — — —
Minimum off
time for the
compressor.
33 05 5 minutes minimum
off time for the
compressor.
00, 01,
02, 03
or 04
Minimum number of minutes (0
thru 5) the compressor will be off
between calls for the compressor.
Temperature
range stops
in heating.
34 90 Heating setpoint can
be set no higher
than 90°F.
40 to 90 Number can be set anywhere
between 40 and 90 in 1°F
increments.
Temperature
range stops
in cooling.
35
45
c
Lowest setpoint
cooling can be set
to.
45 to 99 Number can be set anywhere
between 45 and 99 in 1°F
increments.
System On
display.
a
36 00 LCD On symbol is
displayed when
system is energized.
01 Display is disabled, usually set
for 01 for a zoned system.
Temperature
display
adjustment.
37 00 No difference in
displayed
temperature and
actual room
temperature.
+3 thru
03
01—Display adjusts to 1°F higher
than actual room temperature.
02—Display adjusts to 2°F higher
than actual room temperature.
03—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.
a
Available on select models.
b
Mode 02 must be set to 01 to extend fan operation.
Table 2. Thermostat Installer Setup Options. (Continued)
Select
Installer Setup
Number (Press
i key to
change)
Factory Setting
Other Choices
(Press ! or # key to change)
Display Description Display Description
(20 pages)
(12 pages)
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