69-1055-1
5
T8524C,D MULTISTAGE MICROELECTRONIC THERMOSTATS
Table 2. Thermostat Installer Setup Options.
a
Available on select models.
b
Installer Setup Number 02 must be set to 01 to extend fan operation.
(Continued)
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 and 04
—
—
—
—
—
Stage-two
heating cycle
rate
05
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
06 thru 11
—
—
—
—
—
Changeover
(T8524D only)
12
01
Manual changeover
00
Automatic changeover
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
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
Sensor to operate.
Not used
25 thru 29
—
—
—
—
—
Deadband
30
03
Heating and cooling
setpoints can be set no
closer than 3°F (1.5°C)
04 thru
10
Heating and cooling
setpoints can be set no
closer than the chosen
value:
04—4°F (2°C)
05—5°F (2.5°C)
06—6°F (3°C)
07—7°F (3.5°C)
08—8°F (4°C)
09—9°F (4.5°C)
10—10°F (5°C)
Not used
31 and 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