T8635L MICROELECTRONIC COMMUNICATING PROGRAMMABLE THERMOSTAT
69-1331—5 12
IMPORTANT
Review the settings to confirm that they are correct for your application. Press Run Program key to exit
Installer Setup. The settings will be saved indefinitely in memory. Upon exiting Installer Setup, “wait”
appears in the display for approximately 20 seconds.
Set the time and day on the last thermostat configured after exiting Installer Setup. See Setting Current Day
and Time section.
37 Field calibration
adjustment.
Local 0 No difference
between displayed
temperature and
actual room
temperature.
-3, -2, -1,
1, 2, 3
Display adjusts to the
chosen °F higher or
lower than room
temperature.
43 Filter timer. Global 0 Thermostat filter timer
is used.
1 External filter timer is
used.
44 Backlight operates
continuously or with a
key press.
Local 0 Backlight operates
with a key press.
1 Backlight operates
continuously.
45 Outdoor temperature
sensor.
Local 0 Outdoor temperature
sensor is not
configured.
1 Outdoor temperature
sensor is configured.
46 Enable humidity display. Global 0 Humidity display
disabled.
1 Humidity display
enabled.
51 Stage 1 heat cycle rate. Global
6
b
Cycle rate of
equipment (cph).
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11,
or 12
Cycle rate of equipment
(cph).
52 Stage 2 heat cycle rate.
55 Emergency heat cycle
rate.
Global 9 Cycle rate of
equipment (cph).
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11,
or 12
Cycle rate of equipment
(cph).
57 Stage 1 cool cycle rate. Global 3 Cycle rate of
equipment (cph).
0, 1, 2, 3,
4, 5, 6, 7,
8, 9, 10,
11, or 12
Cycle rate of equipment
(cph).
58 Stage 2 cool cycle rate.
ADV Advance configuration
menu to review/modify
equipment ID and type.
ADV
off.
No access to
Advanced Installer
Setup No. 61-63,
65-69, 71-73, 75-79.
ADV on Access to Advanced
Installer Setup No. 61-63,
65-69, 71-73, 75-79.
a
This value is not installer adjustable. If any of these Installer Setup No. are changed: 4, 5, 8, 9, 51, 52, 55-ADV from
Table 6 and 62-63, 65-69, 71-73, 75-80 from Table 7, the settings are locked and Automatic Discovery cannot
occur. To unlock Discovery, advance to “dIS” and press the ▲ key to manually initiate Discovery mode. During Dis-
covery, “wait” appears in the display for approximately 20 seconds and the thermostat is not functional.
b
3 cph when used with W8635B or W8835 configured for heat pump; 9 cph when used with the T8635 set for electric
heat.
Table 6. Installer Setup Numbers and Default Settings and Options. (Continued)
Installer
Setup
Number
(Press
key to
change) Description Scope
Default Setting
Other Options (Press ▲ or
▼ key to change
Display Description Display Description