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69-1049—1
5
T8501D DELUXE ZONE THERMOSTAT
Table 2. Thermostat Installer Setup Options.
a
Number 02 must be set to 01 to extend fan operation.
b
Available on select models.
Installer Setup
Number
(Press i key Factory Setting
Other Choices
(Press ▲ or ▼ key to change) Actual
Select
to change)
Display Description Display Description
Setting
Not used 01 — — — — —
Fan operation
a
02 00 Conventional applica-
tions where equipment
controls fan operation
in heat mode
01 Heat pump and electric heat
applications where thermostat
controls fan operation in heat
mode
Not used 03 — — — — —
Heating cycle
rate
04 06 6 cph used for
conventional systems
01, 03,
or 09
01—1 cph used for radiant floor
heat, gravity systems
03—3 cph used for hot water
systems or high efficiency
furnaces
09—9 cph used for electric heat
systems
Not used 05 thru 11 — — — — —
Changeover 12 01 Manual changeover 00 or
02
00—Manual changeover
02—Auto only
Not used 13 — — — — —
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,b
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
b
24 00 No outdoor
temperature is
displayed
01 Outdoor temperature is
displayed. Needs a C7089B1000
Outdoor Sensor to operate.
Not used 25 thru 32 — — — — —
Minimum off
time for the
compressor
33 05 5 minute 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
Heating setpoint
range stop
b
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
b
35 48 Cooling setpoint can
be set no lower than
48°F
48 thru
99
Number can be set anywhere
between 48 and 99 in 1°F
increments
System on
indicator
(flame=heat,
snowflake=cool)
is displayed
b
36 00 LCD On symbol is
displayed when
system is energized
01 Display is disabled
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