5
Adaptive Intelligent Recovery
Over time, the T4 Pro Thermostat “learns” how long it takes your system to reach
the temperature you want. It turns on the heating or cooling system earlier to
make sure you’re comfortable at the time you expect.
Damage can occur if the compressor is
restarted too soon after shutdown. This
feature forces the compressor to wait for a few
minutes before restarting.
During the wait time, the display will flash
the message Cool On (or Heat On if you have
a heat pump). When the safe wait time has
elapsed, the message stops flashing and the
compressor turns on.
Built-in compressor protection
Message flashes until safe
restart time has elapsed.
Adjusting keypad lockout
1 Press
Menu
on the thermostat.
2 Press or to go to
LOCK
. Press
Select
.
3 Press or to go to
OFF, PART,
or
ON
, and then press
Select
.
OFF
: Unlocked, and full access allowed.
PART:
Partial lockout, allowing only the temperature to be changed.
ON:
No access allowed.
4 To unlock the keypad, press the
CENTER
button and then enter the password
“1234”. To enter the password, press or to change the first digit of the
number. Then press
Select
. Repeat this process to enter the second through
fourth digits of the number. Once all four numbers have been entered, press
Select
again.
5 This will unlock the keypad.
6 If the code is incorrect, the screen will flash the lines "--".
7 Press
Back
to go back a step to enter the correct number and press
Select
.
NOTE:
On some models, the keypad lockout setting is only available in the
installer menu and not available in the user menu.
Adjusting idle backlight display brightness
1 Press
Menu
on the thermostat.
2 Press or to go to
LITE
. Press
Select
.
3 Current brightness setting is displayed (1-5).
4 Press or to adjust backlight brightness.
5 Press
Select
to save and exit
LITE
menu.
NOTE:
Backlight is only displayed if the C (common) wire is connected.