Wed, Jun 17, 2009
Integrated Heat And Air Makes Cabins Comfy
Seamech International, Inc. and A/C Systems, LLC have introduced
a new, more modern air conditioning and heating system which has
been certified through STC for many of the 14VDC and 28VDC Bonanza
models. This new system provides air conditioning and heating
operated by a fully digital, automatic climate control. The air
conditioning system is fully integrated with the heating system,
and can be left on during all phases of flight with no apparent
discernible loss of performance in takeoff distance, cruise speed,
climb, or range. During startup or low bus voltage the climate
control system automatically cycles off through its built-in
load-shedding control.
For comfort, the flight crew needs only to set the temperature
on the digital display, and the selected temperature is maintained
through automatic operation of the air conditioning or heating
systems as required. During A/C operation the cooled air is
distributed through the standard overhead ceiling console and into
an upgraded forward ceiling console, allowing for complete
distribution of air through the entire cabin with special emphasis
on the crew positions. The heating mode utilizes the existing
aircraft heating system, but since its operation is fully
integrated into the automatic climate control system, changes from
air conditioning to heat and back to air conditioning occur
automatically. Bonanzas with existing zoned aft heat control
receives electronic control of the aft heat within reach of the
middle row of passengers.
When maintenance is required, the system provides fault codes,
sensor output, and mode information to allow for effective
diagnostics and repair.
The company claims the automatic system will reduce cockpit work
load, and that more precise climate control and improved cabin
comfort help reduce crew fatigue.
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