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69-0927—4
6
T8511G,R MICROELECTRONIC HEAT PUMP THERMOSTATS
Table 2. Thermostat Installer Setup Options (Continued).
a
T8511G is 48°F.
Installer Setup
Number
(Press i key
Factory-Setting
Other Choices
(Press ▲ or ▼ key to change)
Actual
Select
to change)
Display Description Display Description Setting
Extended fan
operation in
heating
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
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
24 00 No outdoor temperature
is displayed
01 Outdoor temperature is
displayed. Needs a
C7089B1000 Outdoor
Sensor to operate.
Not used 25 thru 28 — — — — —
O/B terminal
energized in
heating or
cooling
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 45
a
Cooling setpoint can be
set no lower than 45°F
a
45
a
thru
99
Number can be set
anywhere between 45
a
and
99 in 1°F increments
System On
display
36 00 LCD On symbol is
displayed when system
is energized
01 Display is disabled, usually
set for 01 for a zoned system
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