Embraer 175 - Auxiliary Power Unit; Operational Limits; Apu Starter Limits

AIRPLANE
FLIGHT
MANUAL
LIMITATIONS
ANAC APPROVED 2-38
REVISION 6 code 01 Page 1
AFM
-
1385
AUXILIARY POWER UNIT
SUNDSTRAND APS 2300
OPERATIONAL LIMITS
PARAMETER MIN MAX
START: - -
TEMPERATURE -54°C (3)
ALTITUDE - 30000 ft
OPERATION: - -
TEMPERATURE (3) (3)
ALTITUDE: - 33000 ft
ELECTRICAL GEN - 33000 ft
BLEED - 15000 ft
TO ASSIST ENGINE START - 21000 ft
ROTOR SPEED - 108%
EGT (1) (2): - -
START - 1032°C
CONTINUOUS - 717°C
NOTE: 1) In flight, there is no automatic shutdown if EGT exceeds the
limits.
2) There is no time limitation for operating the APU on ground
or in flight in the amber range between 662°C and 717°C.
3) APU temperature matches the Airplane Operational
Envelope temperature.
APU STARTER LIMITS
Cooling period after each starting attempt:
F
irst and Second Attempts ...................................... 60 sec OFF
Third Attempt ........................................................... 5 min OFF