Table of Contents
Advertisement
Installer Setup
Number
(Press i key
to change)
Select
Not used
a
Fan operation
Not used
Heating cycle
rate
Not used
05 thru 11
Changeover
Not used
Degree
temperature
display
Not used
15 thru 18
Extended fan
operation in
a,b
heating
Extended fan
operation in
a,b
cooling
Not used
21 thru 23
Outdoor
temperature
b
display
Not used
25 thru 32
Minimum off
time for the
compressor
Heating setpoint
b
range stop
Cooling setpoint
b
range stop
System on
indicator
(flame=heat,
snowflake=cool)
b
is displayed
Temperature
display
adjustment
a
Number 02 must be set to 01 to extend fan operation.
b
Available on select models.
Table 2. Thermostat Installer Setup Options.
Factory Setting
Display
01
—
02
00
Conventional applica-
tions where equipment
controls fan operation
in heat mode
03
—
04
06
6 cph used for
conventional systems
—
12
01
Manual changeover
13
—
14
00
Temperature is
displayed in °F
—
19
00
No extended fan
operation after the call
for heat ends
20
00
No extended fan
operation after the call
for cool ends
—
24
00
No outdoor
temperature is
displayed
—
33
05
5 minute minimum off
time for the
compressor
34
90
Heating setpoint can
be set no higher than
90°F
35
48
Cooling setpoint can
be set no lower than
48°F
36
00
LCD On symbol is
displayed when
system is energized
37
00
No difference in
displayed temperature
and actual room
temperature
Description
Display
—
—
01
—
—
01, 03,
or 09
—
—
00 or
02
—
—
01
—
—
01
01
—
—
01
—
—
00, 01,
02, 03
or 04
40 thru
90
48 thru
99
01
-3 thru
03
5
T8501D DELUXE ZONE THERMOSTAT
Other Choices
(Press
or
key to change)
Description
—
Heat pump and electric heat
applications where thermostat
controls fan operation in heat
mode
—
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
—
00—Manual changeover
02—Auto only
—
Temperature is displayed in °C
—
Fan operation is extended
90 seconds after the call for
heat ends
Fan operation is extended
90 seconds after the call for
cool ends
—
Outdoor temperature is
displayed. Needs a C7089B1000
Outdoor Sensor to operate.
—
Minimum number of minutes
(0 thru 5) the compressor will be
off between calls for the
compressor
Number can be set anywhere
between 40 and 90 in 1°F
increments
Number can be set anywhere
between 48 and 99 in 1°F
increments
Display is disabled
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
Actual
Setting
—
—
—
—
—
—
—
69-1049—1
Advertisement
Table of Contents
