Home Screen Current Conditions & Temp. Settings - Lennox ComfortSense L7742U Programming Manual

H. Displays different information depending on the tab
selected:
HOME tab: displays outdoor temperature (if out-
D
door sensor Lennox P/N X2658 is installed), in-
door relative humidity (RH), which mode is cal-
ling, hold settings information, service remind-
ers.
SCHEDULE tab: displays the event being pro-
D
grammed;
OPTIONS tab: displays a scrolling list of install-
D
er- and user−adjustable parameters, including
filter and service reminder periods, etc.
I. Schedule time adjustment, User/Installer Settings
arrows:
HOME screen: not visible except when execut-
D
ing a HOLD SETTING)
SCHEDULE and OPTION screens: used to ad-
D
just schedule and option settings.
J. Dynamic touch fields − not visible in HOME screen
unless executing a HOLD SETTING. For SCHED-
ULE and OPTIONS settings, these boxes appear
and change depending on the selection. See the
schedule and options sections for details.
Home Screen Current Conditions &
Temperature Settings
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 features are imple-
mented). Other system operational information, such as
indoor relative humidity (if turned on in user settings), de-
humidifying, cooling or heating, will alternately be dis-
played in the information display.
The home screen displays temperature and the tempera-
ture settings in large fonts. The INFORMATION DISPLAY
shows the present day, time, and operational information
in a smaller font.
TUE OCT 23 1:15PM
Figure 2. Home Screen
The menu tabs along the top of the screen are used to ac-
cess the SCHEDULE screen (for program setup) and the
OPTIONS screen (to access user/installer settings includ-
ing, change to 24 hour clock, change Fahrenheit to Cel-
sius, set filter and service reminders, and many other set-
tings.
Equipment operation information appears in the boxes
along the left side of the home screen to indicate fan opera-
tion setting, cooling or heating equipment operation set-
ting, and whether or not scheduled programming 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 includ-
ing dual fuel and HP with Electric Heat), or OFF.
Also, the user can change the fan between ON (fan runs
continuously whether or not cool or heat equipment is run-
ning), 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 programmable schedule, or in a non−program-
mable mode using the SCHED box.
Page 3
COOLING
INFORMATION
DISPLAY AREA
ComfortSenset Model L7742U Touch Screen
7−Day Programmable Thermostat