Piper Malibu PA-46-310P Pilot Operating Handbook page 453

SECTION 9
·SUPPLEMENT 10
PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
ELECTRIC WINDSHIELD PANEL
An electrically heated windshield panel is installed on the exterior of the
pilot's windshield. The panel is heated by current from the aircraft electrical
~
system and controlled by an ON-OFF type WSHD HEAT switch located
on the deice switch panel.
The panel is equipped with a temperature sensing device which auto-
matically turns the panel on and off during operation to maintain the desired
operating characteristics. This feature also prevents activation of the panel
at ambient temperatures above approximately 75° F. With ambient tem-
peratures above 75° Fan operational check must be performed in flight after
the temperature has decreased. The ammeter must be observed for an
increase in load when the WSHD HEAT switch is activated to indicate
proper operation of the panel.
HEATED LIFT DETECTOR
A heated lift detector is installed on the left wing. It is controlled by a
S. WRN HEAT switch located on the deice switch panel and is protected by
a S. WARN HEAT circuit breaker located on the ice protection circuit
breaker panel. The lift detector has an in-line resistor activated by the main "'-,.)
gear squat switch which limits the ground electrical load to approximately
33
percent of the inflight load. This allows the lift detector to be ground checked
and activated prior to flight without damaging the unit.
HEATED PITOT HEAD
A heated AN type head is installed under the left wing. It is controlled by
an ON-OFF type PITOT HEAT switch located on the deice switch panel
and is protected by a PITOT HEAT circuit breaker located on the ice
protection circuit breaker panel.
CAUTION
Care should be taken when an operational
check of the heated pitot head is being per-
formed on the ground. The unit becomes very
hot.
REPORT: VB-1200
ISSUED: JULY 30, 1984
9-98, 12 of 16