Lennox International Inc 81M26, 81M28, 81M27 When would I need to change the USER settings?

110-1052F 5/12/05 11:59 AM Page 20

20

More Detailed Information on the USER SETTINGS

SECURITY

CHANGE TEMP. ONLY PREVENT ALL CHANGES

USER MENU SELECT

ENTER SECURITY CODE

FOR TEMPERATURE

0 0 0 0

USER MENU SELECT

SECURITY SETTINGS

In order to prevent tampering with the program and your desired settings, two levels of security are available.The first will allow only temporary changes to the temperature. It protects all other pro- grammed setpoints. The second will restrict changes to EVERYTHING, including temporary changes to the temperature.

SECURITY CODE

In this screen you enter a four-digit code. Use the UP or DOWN button to change the first value, press SELECT. The second digit will be highlighted. Repeat for all four values. And don’t forget your code. If you do, you will have to reset the entire thermostat and that will erase all the schedules you’ve programmed into the unit.

NOTE: After entering the security code to unlock the thermostat, the code will need to be re-entered to secure the thermostat after changes are made.

When would I need to change the USER settings?

About the only features you may need to change are the temperature differentials (if you desire additional comfort) and the security settings. All the other settings probably will not need to be changed.