Lux Products TX9600TS - Manual (Page 29)

KEYPAD LOCKOUT: You can lock the touch-panel buttons to prevent
unauthorized tampering of your thermostat settings.
NOTE: These keypad lock instructions need to be performed in a timely
manner, as the thermostat will timeout and automatically exit the keypad lock
screens and return to the Normal Run screen after approximately 10 seconds
without a button press.
TO LOCK THE KEYPAD: The System Mode switch must be in either the Heat
or Cool position. Press the MENU button, then press the SCROLL button
until “SET KEYBOARD LOCK CODE” is shown, then press the OK button. The
words “ENTER CODE” will appear at the top of the screen, along with four
digits at the left. Select a 4-digit code that you would like to use for locking
the thermostat. Press the UP and DOWN buttons to change each digit
individually, using the NEXT button to cycle through which digit is selected.
Pressing the OK button will lock the thermostat touch panel using the 4-digit
code that is shown on the screen, and return to the Normal Run screen with
a padlock shown to confirm that the thermostat is now locked.
TO UNLOCK THE KEYPAD: Press the padlock icon, and the words “UNLOCK
KEYBOARD?” will appear at the top of the screen. Press OK to proceed with
entering the unlock code (or press the EXIT button to cancel). The words
“ENTER CODE” will appear at the top of the screen, along with four digits at
the left. You will need to enter the proper unlock code that was used for
initially locking the thermostat. Press the UP and DOWN buttons to change
each digit individually, using the NEXT button to cycle through which digit is
selected. With the correct lock code entered on the screen, pressing the OK
button will unlock the thermostat. If the code entered does not match the
current keypad lock code, the words “WRONG CODE” will flash briefly, and
you may try to enter the correct code again.
IF YOU FORGET YOUR KEYPAD LOCK CODE: The following steps can regain
access to the thermostat. Remove the front portion of the thermostat from
the wall, and briefly press the “HW RST” HARDWARE RESET button on the
thermostat circuit board. More information about the use of this button is
described later in this section.
AIR FILTER MONITOR: In most systems that use a blower fan and air ducts,
there is an air filter that is either replaceable or requires cleaning. The filter
is usually located in the air handler, where the blower fan is. This
thermostat feature assists you with keeping track of proper maintenance
and/or periodic replacement intervals for your system’s filter.
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