Honeywell t8501A Installation Instructions Manual page 6

T8501A,B,C,D MICROELECTRONIC THERMOSTATS
Mode Display
(Press i key
to change)
Select
Not used 13
Degree tempera- 14
ture display
Not used 15 thru 18
Extended fan 19
operation in
a,b
heating
Extended fan 20
operation in
a
cooling
Not used 21 thru 23
Outdoor 24
temperature
a
display
Not used 25 thru 32
Minimum off time 33
for the
compressor
Heating setpoint 34
a
range stop
Cooling setpoint 35
a
range stop
System On 36
a
display
Temperature 37
display
adjustment
a
Available on select models.
b
Mode 02 must be set to 01 to extend fan operation.
c
T8501D is 48°F.
69-0959
Table 2. Thermostat Installer Setup Options (continued).
Factory-Setting
Display Description
— —
00 Temperature is
displayed in °F
— —
00 No extended fan
operation after the call
for heat ends
00 No extended fan
operation after the call
for cool ends
— —
00 No outdoor temperature
is displayed
— —
05 5 minute minimum off
time for the compressor
90 Heating setpoint can be
set no higher than 90°F
c
45 Cooling setpoint can be
set no lower than 45°F
00 LCD On symbol is
displayed when system
is energized
00 No difference in
displayed temperature
and actual room
temperature
(Press
Display
—
01
—
01
01
—
01
—
00, 01,
02, 03 or
04
40 thru
90
c
45 thru
c
99
01
01 thru
06
6
Other Choices
or key to change)
Description
—
Temperature is displayed in °C
—
Fan operation is extended
90 seconds after the call for
heat ends
Fan operation is extended
90 seconds after the call for
cool ends
—
Outdoor temperature is displayed.
Needs a C7089B1000 Outdoor
Sensor to operate.
—
Minimum number of minutes
(0 thru 5) the compressor will be
off between calls for the
compressor
Number can be set anywhere
between 40 and 90 in 1°F
increments
Number can be set anywhere
c
between 45 and 99 in 1°F
increments
Display is disabled, usually set for
01 for a zoned system
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
04—Display adjusts to 1°F lower
than actual room temperature
05—Display adjusts to 2°F lower
than actual room temperature
06—Display adjusts to 3°F lower
than actual room temperature