Lux Products P721UTa Thermostat User Manual


 
The following examples are shown for setting the maximum set temperature for
Heat mode. Setting the Temperature Limit Stop for Cool mode is done in the
same exact manner with the System Mode switch in the Cool position, and
instead you will be setting the minimum set temperature for cooling. Once a
Temp Stop Lock Code has been selected, this same code is used for both Heat
and Cool temp stops.
TO SET THE TEMPERATURE LIMIT STOP: Press the MENU button, then press the
SCROLL button until “SET HEAT TEMP STOP” is shown, then press the OK button.
The words “ENTER CODE” and “TEMP STOP” will appear at the top of the screen,
along with two digits at the left. Use the UP and DOWN buttons to enter the
current Temp Stop Lock Code (“00” by default). Press the NEXT button to
advance. If the code entered does not match the current Temp Stop Lock Code,
the words “WRONG CODE” will flash briefly, and you may try to enter the correct
code again. If the current code has been entered correctly, you will have the
ability to change the desired Temp Stop Lock Code to something else. The words
“SET CODE” and “TEMP STOP” will appear at the top of the screen, along with
two digits at the left. Use the UP and DOWN buttons to enter the desired Temp
Stop Lock Code to be used, and press the NEXT button to advance.
The words “SET HEAT RANGE STOP” will appear at the top of the screen, along
with two large temperature digits in the middle. Use the UP and DOWN buttons
to adjust the desired maximum heat set temperature value (or minimum set
temperature value for Cool mode). Once complete, press the NEXT button to
accept the setting and return to the Normal Run screen.
IF YOU FORGET YOUR TEMPERATURE STOP LOCK CODE: The code can be reset to
the factory default “00” by performing the following steps. Start with the System
Mode switch in either the Heat or Cool positions, then change to the OFF
position. Press and hold the HOLD, NEXT, and OK buttons all at the same time for
at least 10 seconds. The screen will briefly show “00” on the screen to confirm
that the Temp Stop Lock Code has been successfully reset to the factory default
of “00”.
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