Piper Malibu PA-46-310P Pilot Operating Handbook page 284

PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
SECTION 7
DESCR/OPERA TION
VACUUM
TANK
DUMP
S.W.
LOG. GEAR
s.w
AMBIENT
STATIC
SAFETI
VALVE
OUTFLOW VALVE
FILTER
CABIN VALVE
DISCHARGE AMBIENT
STATIC
PRESSURIZATION CONTROL SCHEMATIC
Figure 7-27
Next to the cabin pressure controller, a triple indicator simplifies
monitoring the system's operation. The triple indicator displays the cabin
altitude, cabin rate of change and the differential pressure between the cabin
and the outside atmosphere. Maximum cabin differential pressure is 5.5 psi.
A CABIN ALTITUDE warning light on the annunciator display warns
the pilot when the cabin altitude is above I 0,000 feet. Cabin pressure is auto-
matically regulated to a maximum of 5.5 psi pressure differential. Should the
cabin outflow valve malfunction, the cabin safety valve will maintain a
maximum of 5.6 cabin differential pressure. The landing gear squat switch,
on the left main landing gear, prevents the cabin from being pressurized
while the .airplane is on the ground.
For complete instructions on the operation of the cabin pressurization
system, refer to Section 4 - Normal Procedures.
The CABIN DUMP switch electrically opens a solenoid valve allowing
vacuum suction pressure to open the safety valve and rapidly dump cabin
pressure to ambient pressure.
ISSUED: JANUARY 11, 1984
REPORT: VB-1200
7-35