Beechcraft Baron G58 Pilot Operating Handbook page 580

Airplane Flight Manual Supplement
Beechcraft Baron Models
G58, 58A, 58, E55A, E55, D55A, AND D55
SECTION 7 –SYSTEMS DESCRIPTION (continued)
The temperature can be displayed in either Fahrenheit (°F) or Centigrade (°C) by
depressing the temperature (+) and (-) buttons simultaneously.
FAN (+) or (-)
During air conditioning operation, the automatically selected fan speed (volume of air delivery) can be
reduced or increased manually by operating these buttons. This mode overrides the automatic fan speed
control feature. Incremental fan speeds up or down in 11 steps are available. The digital display indicates
the fan speed as a percentage or "HI" when the maximum fan speed is reached or "LO" when the minimum
fan speed is reached. The digital display returns to the normal mode of interior temperature selection 5
seconds after either fan speed button is depressed. The selected fan speed is maintained until it is changed
or the "AUTO" button is depressed.
During heating operation the heater/fresh air blower operates at maximum speed while the landing gear is
extended. When the landing gear is retracted, ram air is used to provide heater/fresh airflow and the
heater/fresh air blower is turned off.
OAT- Outside Air Temperature
When depressed, the outside air temperature is displayed as measured by the outside air temperature
sensor. The outside air temperature will be displayed for 5 seconds then return to the normal mode of
interior temperature selection.
The outside temperature display is not to be considered an indicator for possible
icing conditions.
freezing and in a multitude of conditions. Refer to the Pilots Operating Handbook
for information regarding flight into icing conditions.
The Climate Control System can display OAT. This display is advisory only and
may differ from other OAT indications displayed in the cockpit.
OFF
When the OFF button is depressed, the entire climate control system is switched off. In this mode of
operation the heater/ECS mixing valve closes the hot air supply from the engine heat exchanger. This mode
does NOT need to be selected prior to aircraft shutdown.
ON
This switches on the climate control system.
temperature and mode selections.
General hints for electronic climate control system operation
 When the air conditioning is operating, the interior temperatures and humidity will be reduced. This
helps to reduce the possibility of windshield and side window fog up.
 For the quickest cooling of a hot cabin, leave cabin doors open for a few minutes prior to startup to
allow the hot air to escape.
 When it is very hot and humid, a significant amount of condensed water can drip from the
evaporator drain tube onto the surface beneath the aircraft for an extended period of time. This is
normal and does not indicate a leak.
 For maximum performance during air conditioning or heating modes of operation, ensure that the
fresh air vents are closed.
 The condenser should be checked periodically for cleanliness. If clogged with dirt or debris, the
condenser should be cleaned with compressed air.
 If it is suspected that the air conditioning system has been damaged through outside influences (i.e.
by debris, "FOD"); the system should be checked immediately by an authorized Service Center.
 If there is a defect in the refrigerant circuit of the air conditioner, a safety switch switches the air
conditioning compressor off temporarily or completely. In this case, contact the authorized Service
Center.
 Repairs or maintenance to the air conditioning system require trained personnel and special tools.
If there should be any malfunction in the system, contact the authorized Service Center.
FAA Approved 04/23/2012
NOTE
WARNING
Ice formation can occur at indicated temperatures above
NOTE
The LED numeric display will show the current interior
Document No. FTA-010-6
Revision IR
Page 12