T8611M DELUXE PROGRAMMABLE HEAT PUMP THERMOSTATS
NOTE: For most applications, the thermostat factory-
settings will not need to be changed. Review
the factory settings in Table 2 and if no changes
are necessary, go to the Installer System Test
The Installer Setup is used to customize the thermostat
to specific systems. Some of the options include
temperature display, changeover and outdoor
temperature display. Installer Setup numbers are listed in
Table 3. The table includes all the configuration options
and the factory settings for the T8611.
A combination of key presses are required to use the
Installer Setup feature:
Fig. 8. T8611M System and Fan key locations.
To enter the installer setup, press and hold the
information i key with the increase s and decrease t
keys until the first number is displayed. All display
segments appear for approximately three seconds
before the number is displayed. See Fig. 10 and 11.
To advance to the next Installer Setup, press the
Time ∆ key.
Two LED indicators are located in the upper right of the
thermostat. They indicate when a CHECK or FAIL signal
is sent to the thermostat from the system. See Fig. 9. The
CHECK LED is on continuously when the thermostat
system setting is in the Emergency Heat position.
To change a setting, use the increase s or
decrease t key.
To scroll the Installer Setup numbers backward, press
the Time ∇ key.
TWO LED INDICATORS
— To exit the Installer Setup, press Run Program.
Wait Set Program Set Day/Time Temporary Setting
Filter Em Ht Aux Ht Days
MonTue Wed Thu Fri Sat Sun Repl Batt Room Outdoor
Wake Leave Return Sleep DST
Fig. 9. LED location.
Refer to Table 2 for the default program settings. If the
daytime energy savings period is not used, press the
period key (Leave or Return) until the time is blank. The
fan setting feature is available on select thermostat
models. See Owner’s Guide for complete instructions on
changing the program.
Fig. 10. Display of LCD segments.
Table 2. Default Program Settings.
Setpoint Setpoint Setting
FACTORY SETTING OR OTHER
CHOICE DISPLAY (COLUMN 3
COLUMN 2 OF TABLE 3)
OR 5 OF TABLE 3)
Fig. 11. Display of Installer Setup
number and setting.
Return 5:00 PM
Sleep 10:00 PM
Only configurable numbers are shown on the
device. Example: If thermostat does not have a
system key, Installer Setup Number 12 will not
be displayed. Review Table 3 factory settings
and mark any desired changes in the Actual
Setting column. When Installer Setup is
complete, review the settings to confirm that
they match the system.