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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