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LUX TX500Ub Non Programmable Thermostat Instruction Manual

KEYPAD LOCKOUT: You can lock the front panel buttons to prevent unauthorized  
tampering of your thermostat settings.  
NOTE: These keypad lock instructions need to be performed in a timely manner.  
The 4-button sequence which locks the thermostat must be entered within a 10-  
second timeframe, or the keypad lockout sequence will have to be entered again  
from the beginning.  
TO LOCK THE KEYPAD: Start with the System Mode switch in either the HEAT or  
COOL positions, and the Set Slide switch in the RUN position. Perform a single  
press of each button, in the following sequence: NEXT, NEXT, NEXT, HOLD.  
TO UNLOCK THE KEYPAD: Start with the System Mode switch in either the HEAT  
or COOL positions, and the Set Slide switch in the RUN position. Perform a single  
press of each button, in the following sequence: NEXT, NEXT, NEXT, HOLD. The  
padlock should no longer be present, with the thermostat now unlocked. If the  
padlock is still on the screen, please try to enter the 4-button sequence again.  
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.  
The Air Filter Monitor counts the duration of filter usage that has occurred, since  
the last time the Filter Monitor has been reset. This feature is for information  
purposes only, and does not affect the operation of your heating or cooling  
equipment, or the thermostat. When the filter usage duration has completely  
expired, the word “FILTER” will flash on the screen.  
TO SET THE AIR FILTER DURATION: Move the Set Slide switch to the “AIR FILTER”  
position. The word “DAYS” will be shown on the screen, along with the word  
“FILTER” and 2-3 characters at the top right corner of the display. Press either  
of the UP/DOWN buttons to select the desired filter duration (in days) from the  
following choices: OFF, 30, 60, 90, 120, 180, or 365. If the filter duration value  
is set to “OFF”, then the Air Filter Monitor will be completely disabled. Return  
the Set Slide switch to the RUN position when you are finished.  
26  
GeneralDetails
NameLUX TX500Ub Non Programmable Thermostat Instruction Manual
MakeLUX
LanguageEnglish
FiletypePDF (Download)
File size0.31 MB
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LUX TX500Ub Non Programmable Thermostat Instruction Manual