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(Heat) — This subfunction is used to read or
change the configuration of staged heat.
(Unoccupied free cooling) — This subfunction is
used to read or change the configuration of the unoccupied free
cooling option.
(Adaptive optimal start/stop) — This subfunction
is used to read or change the configuration of the adaptive opti-
mal start/stop option. Refer to Carrier Comfort Network prod-
uct literature for more information on configurations.
(Space temperature reset) — This subfunction is
used to read or change the configuration of the space tempera-
ture reset. Refer to the Supply Air Set Point Reset section
on page 30 and Space Temperature Averaging section on
page 40 for more information.
(Loadshed) — This subfunction is used to read or
change the configuration of loadshed. Loadshed is used to
define the CCN groups for redline and loadshed functions.
Groups 1 through 16 are acceptable values.
(Indoor-air quality) — This subfunction is used to
read or change the configuration of the indoor-air quality
option. Refer to the Indoor-Air Quality section on page 25 for
more details.
(Humidity) — This subfunction is used to read or
change the configuration of the humidity option.
(Building pressure) — This subfunction is used to
read or change the configuration of the building pressure
option.
(Alert limits) — This is used to read or change the
configuration of the alert limits.
(Service history) — This subfunction is used to
read the unit service history.
(Service/Maintenance alert) — This is used to read
or change the configuration of the service maintenance alert
option.
NOTE: When the number of hours the supply-air fan has been
energized reaches the alert limit, alert no. 173 is generated and
SMEH 0.0 is displayed, resetting the supply-air fan’s run time
to 0 hours. The supply-air fan cumulative time energized can
also be reset by pressing and entering a new service
date. This function can be used to monitor standard service
practices, such as lubrication of bearings and changing or
cleaning filters.
(Override history) — This subfunction is used to
read the status of the timed override history. This value is
cumulative for the current 24-hour period (beginning at
midnight).
NOTE: This subfunction is a “read only” option.
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