Honeywell T8501, Product Data, Page: 7 / 16

T8501 AND T8511 DELUXE ELECTRONIC THERMOSTATS
68-0162—1
7
Table 4. Thermostat Installer Setup Options.
(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, b
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
b
Depends Stage one 01, 03, 06 01—1 cph used for radiant floor
05
b
on model Stage two or 09
heat, gravity systems
06 — Not used 03—3 cph used for hot water
07
b
09 Emergency heat systems or high efficiency
furnaces
06—6 cph used for conventional
systems
—
09—9 cph used for electric heat
systems
Not used 08 thru 11 — — — — —
Changeover 12 01 Manual changeover 00 Automatic changeover
Not used 13 — — — — —
Degree tempera-
ture 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
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 tempera-
ture is displayed 01 Outdoor temperature is
displayed. Needs a C7089B1000
Outdoor Sensor to operate.
Not used 25 thru 28 — — — — —
O/B terminal ener-
gized in heating or
cooling
b
29 00 O/B terminal is
energized for reversing
valve in cooling 01 O/B terminal is energized for
reversing valve in heating
Not used 30 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 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 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