Lennox ComfortSense 7500 Series User Manual page 4

• From the override setting screen, the
options are 1 hour, 2 hour or next scheduled
period. Make selection and then touch set.
• For the 1 or 2 hour setting the home
screen will indicate schedule hold until time
indicated (i.e., 11:57 pm). To exit schedule
hold, touch X
• When until next period is selected, the set
point will be kept until the next program
schedule period. To exit until next period,
touch X.
K. System Status Icons - Equipment operation
information appears along the left side of the
home screen. The displayed icons will indicate
cooling or heating demand, cooling compressor
delay, or cooling demand.
Table 1. System Status Icons
Description
Icon
NOTE: Touching the icon will display a
Humidifying icon is displayed when
humidifying is occurring. Touching on
the icon will display humidifying next to
the icon.
Dehumidifying icon is displayed when
dehumidifying is occurring. Touching
the icon will display dehumidifying next
to the icon.
Red flames indicates the system is
heating.
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Table 1. System Status Icons
Description
Icon
NOTE: Touching the icon will display a
Blue flames indicates the system is
cooling.
Snow flake indicates the next mode
of operation will be cooling. Waiting
indicates there is a compressor delay
which is by default five minutes.
Red flame indicates the next mode
of operation will be heating. Waiting
indicates there is a compressor delay
(heat pump heating) which has a default
of five minutes and is not adjustable.
Indicates the system is running in
emergency heat mode.
All heat pumps operating in northern
climates below 35°F (1.6°C) normally
need a supplemental heating source.
Usually it is in the form of electric
heating provided by the indoor unit.
Other sources could be gas, oil, or
hot-water back-up systems as well. The
supplemental heat is also referred to
as "second-stage" or "back-up" heating,
with "first-stage" being the heat pump
only. Emergency heat is when you use
your supplemental heat (2nd stage) by
itself, without the use of your heat pump
(1st stage heat). Not available for non-
heat pump systems.
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