With the CABIN FLOOD selected OPEN, all
the conditioned air is supplied to a cabin flood
outlet, at roof level at the right rear of the pas-
senger cabin.
With the CABIN FLOOD selected CLOSE,
the air supply to the cabin flood flow outlet is
cut off.
A green LED indicator above the switch dis-
plays the valve position.
CABIN FAN SWITCH
An electrically operated fan draws air from the
rear of the cabin and recirculates it via indi-
vidual controllable outlets on each passenger
service unit (one outlet per passenger seat po-
sition). The recirculated air is also supplied to
two further outlets in the flight compartment.
The fan is controlled from a FAN ON–OFF
switch in the ENVIRONMENTAL section of
the flight compartment roof panel.
CABIN FLOOR SWITCH
Temperature-controlled air enters the pres-
sure cabin through a silencer, a nonreturn
valve and two electrically operated valves.
T h i s i s c o n t r o l l e d b y a C A B I N F L O O R
OPEN–STOP–CLOSE switch on the flight
compartment roof panel.
The switch is spring-loaded to the center
(STOP) position. Holding the switch to one or
the other positions allows the valve to move
(or inched) to the selected position.
With the CABIN FLOOR selected OPEN, all
the conditioned air is supplied to both cabin
floor ducts.
With the CABIN FLOOR selected CLOSE, the
air supply to both cabin floor ducts is cut off.
A green LED indicator above the switch dis-
plays the valve position.
GENERAL SYSTEM CONTROL
In cold weather operation, the floor ducts
should be opened to conditioned air and the
cabin fan turned on to recirculate the cabin air
through the cabin air gaspers for balanced
cabin heating.
In hot weather operation, the cabin floor ducts
may be positioned as required for balanced
cooling of the cabin.
After the aircraft reaches altitude and cold
soaks, the floor ducts should be opened as
needed, to maintain the desired cabin tem-
perature. The cabin fan can be turned on, if
necessary, to recirculate the cabin air through
the cabin air gaspers for a more balanced
cabin temperature.
NOTE
It is recommended that when the cabin
fan is in operation, the floor valves
should not be closed more than half-
way for efficient operation.
AUXILIARY HEATING SYSTEM
The auxiliary heating system supplies the
flight compartment with a variable supply of
hot air via a heat augmentor in the main sup-
ply system. Control of the auxiliary system
valve is by the F/DK VLV OPEN–CLOSE
switch on the roof panel. The supply is tapped
from upstream of the main air valve of the
No. 2 engine via a nonreturn valve.
If, while the flight compartment auxiliary
heating valve is open, an overheat of 115°C is
detected in the outlet duct, then the flight com-
partment auxiliary heating valve is closed. It
remains closed until selected manually open.
11-8
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP
PILOT TRAINING MANUAL
FlightSafety
international
Содержание 800 XP
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