Home Screen Current Conditions & Temperature Settings - Lennox L7742U Programming And Application Manual

Home Screen Current Conditions & Temperature Settings
COOLING
TUE OCT 23 1:15PM
Figure 2. Home Screen
The HOME screen (figure 2) displays indoor temperature and outdoor
temperature if the X2658 sensor is installed outdoors and turned on in
user settings (outdoor sensor is required when humidity controlling fea-
tures are implemented). Other system operational information, such as
indoor relative humidity (if turned on in user settings), dehumidifying,
cooling or heating, will alternately be displayed in the information dis-
play.
The home screen displays temperature and the temperature settings in
large fonts. The INFORMATION DISPLAY shows the present day,
time, and operational information in a smaller font.
The menu tabs along the top of the screen are used to access the
SCHEDULE screen (for program setup) and the OPTIONS screen (to
access user/installer settings including, change to 24 hour clock,
change Fahrenheit to Celsius, set filter and service reminders, and
many other settings.
Equipment operation information appears in the boxes along the left
side of the home screen to indicate fan operation setting, cooling or
heating equipment operation setting, and whether or not scheduled pro-
gramming is ON or OFF. From these boxes, users can change the unit's
mode to HEAT, COOL, AUTO (autochangeover − default), EM HEAT
(emergency heat for heat pump applications including dual fuel and HP
with Electric Heat), or OFF.
INFORMATION
Also, the user can change the fan between ON (fan runs continuously
DISPLAY AREA
whether or not cool or heat equipment is running), AUTO (fan run time
controlled the schedule), or CIRC (circulate − user sets percentage of
fan run time).
The user can also decide whether or not to operate the unit per the pro-
grammable schedule, or in a non−programmable mode using the
SCHED box.
ComfortSenset Model L7742U Touch Screen 7−Day Programmable Thermostat
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