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05/09 506229−01
*2P0509* *P506229-01*
E2009 Lennox Industries Inc.
Dallas, Texas, USA
S Tabbed user interface with
touch screen interaction
S Humidification measurement
and control
S Soft blue backlighted screen
with adjustable brightness
S Programmable or
non−programmable options
S Equipment maintenance
reminders
S Automatically changes
between heating cooling
HOMEOWNER’S MANUAL
ComfortSense
®
7000 Series
Model L7742U Touch Screen Programmable Thermostat
CONTROLS
506229−01
05/09
Supersedes 04/09
Table of Contents
ComfortSense
®
7000 Series Model L7742U Thermostat 2. . .
Display Fields & Touch Screen Points 3. . . . . . . . . . . . . . . . . .
Home ScreenĊCurrent Conditions & Temperature Settings 4
Controlling the Heat/Cool Modes of Operation 5. . . . . . . . . . .
Controlling the Fan Operation 6. . . . . . . . . . . . . . . . . . . . . . . . .
Controlling the Schedule 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule ScreenĊProgramming 8. . . . . . . . . . . . . . . . . . . . . .
Options screenĊReminders & User Settings 9. . . . . . . . . . . .
Humidification 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dehumidification 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Humiditrol
®
EDA Accessory 13. . . . . . . . . . . . . . . . . . . . . . . . . .
Temporary Temperature ChangeĊPause the Schedule 14. . .
Remote Outdoor Sensor 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Protection 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litho U.S.A.