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Lennox ComfortSense L7742U Programming Guide

Lennox ComfortSense L7742U
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506180−01 09/08
Page 6
Schedule ScreenProgramming
Press the screen anywhere − the first press turns on the
backlight.
Press the SCHEDULE tab along the top of the screen. The
display changes to programming mode (figure 4) and
shows the current settings. The thermostat may be pro-
grammed for two or four (default) events per day. The
names for the events are: WAKE, LEAVE, RETURN, and
SLEEP. The selected time for an event to occur is based
on when you want the event to begin. Four events are
common for working households.
WAKE PERIOD BEGINS
5:OOAM
Figure 4. Schedule Screen
Programming may be performed in groups of days (5/2 or
all 7) or individual days, as follows:
A. MON TO SUN − allows every day to be set the same.
B. MON TO FRI (weekday programming) and
SAT TO SUN (weekend programming).
C. MONDAY through SUNDAY allows individual days of
the week to be programmed separately.
NOTE − After using one of the groups of days described
above, the program does allow you to subsequently
change individual days to suit your needs.
To select the groupings or individual days, scroll through
the selections pressing NEXT.
Programming Complexity
The programming process for groups of days or individual
days is the same, except in the amount of times required to
go through the process.
Full WeekThe least complex program is the full week
MON TO SUN" program, wherein the events for every day
of the week are the same. This requires one time through
the event programming process.
Work WeekNext in complexity to the full week program
is the work week program wherein the events are set for a
typical work week (MON TO FRI) and different events are
set for the weekend (SAT TO SUN). This requires two
times through the events.
Day by DayMost complex because this requires going
through the programming process 7 times.
Days & Events Programming process
Action Display shows...
1 Press SCHEDULE tab SCHEDULE screen
2 Press EDIT UP/DOWN arrows on right−hand
side of screen; EDIT changes to
CANCEL
3 Press NEXT to highlight the
desired grouping of days
Days change to match selected
group, e.g. MON TUE WED THU FRI
4 Press an event: WAKE
(default), LEAVE, RETURN,
& SLEEP to select for
programming
Filled triangle above event
indicates which event is selected
for change
5 Press UP/DOWN arrows to
select desired temperature
After change is made, SAVE
appears in the bottom right−hand
of the screen
6 Press FAN repeatedly to
select
desired fan mode
Fan indicator displays selection
(ON, AUTO, or CIRC)
7 Press UP/DOWN arrows to
adjust start time for
selected event
Information area displays start
time
8 Repeat steps 4 − 7 for all remaining events.
(If you selected other than MON TUE WED THU FRI SAT SUN), continue;
otherwise, skip to step 11.
9 Press NEXT for the next
group or the next day
Days change to match selected
group, e.g. SAT SUN
10 Repeat steps 3 through 8 for the remaining days, if necessary.
11 Press SAVE when all events
and
days are programmed as
desired
The changes are made and the
schedule screen reappears.
2
4
6
1
7
5
WAKE PERIOD BEGINS
5:OOAM
9
11
3
Figure 5. Programming days and events

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Lennox ComfortSense L7742U Specifications

General IconGeneral
BrandLennox
ModelComfortSense L7742U
CategoryThermostat
LanguageEnglish

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