7-26 ICING EQUIPMENT
The aircraft is standard equipped with dual heated pitot/static tubes and an
inertial separator for the engine inlet. Both left and right pitot/static heat are
protected by separate circuit breakers (Labeled: LEFT PITOT HEAT and
RIGHT PITOT HEAT) and are controlled by individual switches located on the
right switch panel. The inertial separator is controlled by a two position switch
labeled ENG INLET. The switch places the inertial separator in bypass when
it is moved up to the BYPASS position and places it in the normal condition
when moved down to the NORMAL switch position.
The pitot heat should be turned on anytime the outside air temperature is
less than 5°C and visible moisture is present to prevent the formation of ice
on those systems. As required by Federal Regulations, amber annunciation
is provided to notify the pilot when pitot heat is turned off and the OAT is
less than 5°C. The annunciation is displayed through the G1000 as follows:
PITOT OFF L-R
Also, PITOT FL L-R annunciation is provided through the G1000 to alert the
pilot if the pitot heat switch is turned on but no current is getting to the pitot/
static heating element. A current sensing device, located behind the right
switch panel, detects current ow in the system. If a pitot heat switch is
placed in the ON position and no current is owing in the circuit,
PITOT FL
L-R will be shown on the PFD.
The inertial separator should be placed in BYPASS prior to operating the engine
when visible moisture is present (clouds, rain, snow, ice crystals, etc.) with
outside air temperatures below 5°C. The inertial separator system may also
be used for ground operations or takeoffs from dusty, sandy eld conditions to
minimize the ingestion of foreign particles and debris into the compressor. The
NORMAL position should be used for all other operations.
An advisory annunciation is provided through the G1000 to indicate whether
the inertial separator system is in the NORMAL or BYPASS position as
follows:
ENG INLET NRM
ENG INLET BP
NOTE: When the BYPASS mode is selected, a slight reduction of engine
torque occurs. Refer to “Section 5” of this manual for those specications.
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