Lennox l7742u - Manual
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Table of Contents:
- Page 2 – ComfortSense
- Page 3 – Touch Screen Display; Press the screen anywhere − the first press turns on the backlight.
- Page 4 – Home ScreenCurrent Conditions & Temperature Settings; COOLING; Figure 2. Home Screen
- Page 5 – Controlling the Heat/Cool Modes of Operation; Figure 3. Selecting Mode of Operation; Operating Information
- Page 6 – Controlling the Fan Operation; Fan Modes; AUTOthe fan is following schedule.; Fan Program; Controlling the Schedule
- Page 7 – Schedule tabProgramming; EVENTS DAILY 2 OR 4; Figure 4. Schedule Screen; Full Week
- Page 8 – Schedule ScreenProgramming; Days & Events Programming process; Action; WAKE PERIOD BEGINS
- Page 9 – Options ScreenReminders & User Settings; OPTIONS TAB; clockdefault is 12H to change, scroll to 12 OR 24
- Page 10 – Options tabUser Setting; For INDOOR RH, use arrows to select ON or OFF then press SAVE.
- Page 11 – cooling
- Page 12 – Humidification; if set up by the installer settings for BASIC or
- Page 13 – Dehumidification; OFF; Humiditrol; If your system includes a Humiditrol
- Page 14 – Temporary Temperature ChangePause the Schedule; Temporary Temperature Changes (schedule ON); HOLD SETTING UNTIL; Figure 6. Setting a Hold on the Schedule
- Page 15 – Optional Remote Outdoor Sensor; In many applications, the ComfortSense; Memory Protection; Maintenance
05/09
506229−01
*2P0509*
*P506229-01*
E
2009 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
. . .
Display Fields & Touch Screen Points
. . . . . . . . . . . . . . . . . .
Home ScreenCurrent Conditions & Temperature Settings
Controlling the Heat/Cool Modes of Operation
. . . . . . . . . . .
Controlling the Fan Operation
. . . . . . . . . . . . . . . . . . . . . . . . .
Controlling the Schedule
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule ScreenProgramming
. . . . . . . . . . . . . . . . . . . . . .
Options screenReminders & User Settings
. . . . . . . . . . . .
Humidification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dehumidification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Humiditrol
®
EDA Accessory
. . . . . . . . . . . . . . . . . . . . . . . . . .
Temporary Temperature ChangePause the Schedule
. . .
Remote Outdoor Sensor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Protection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Litho U.S.A.
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Summary
506229−01 05/09 Page 2 ComfortSense ® 7000 Series Model L7742U Thermostat The ComfortSense ® 7000 Series Model L7742U thermostat is an elec- tronic 7−day, universal, multi−stage, programmable, touch screen ther-mostat. It also offers enhanced capabilities including humidification /dehumidification /...
ComfortSense t Model L7742U Touch Screen 7−Day Programmable Thermostat Page 3 Touch Screen Display A B C G I H F E D E Figure 1. Touchscreen display Press the screen anywhere − the first press turns on the backlight. A Selection Tabs − Press to select: HOME (normal display), SCHEDULE (for programmin...
506229−01 05/09 Page 4 Home ScreenCurrent Conditions & Temperature Settings INFORMATION DISPLAY AREA COOLING TUE OCT 23 1:15PM Figure 2. Home Screen The HOME screen (figure 2) displays indoor temperature and outdoortemperature if the outdoor sensor is installed. Other system operationalinformati...
