曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
Upon leaving the plenum, the air is ducted towards the dual pre-cooler heat exchanger, then ducted overboard.
FLOW CONTROL VALVES
Flow control valves (FCVs), are used to control the mass airflow through the PACK and TRIM AIR system. The flow con-trol valves are electrically controlled, pneumatically operated, modulating shutoff valves. The AIR SOURCE selector on the AIRCOND/BLEED control panel operate the opening and closing of these valves.
The FCVs are automatically closed when the engine START switch is selected. Shutting down the air conditioning system, ensures that the air turbine starters (ATS) receive sufficient airflow for starter operation. When the start valve closes, the air source returns to the previous selection.
DUAL HEAT EXCHANGER
WATER EXTRACTOR
REHEATER/
CONDENSER
PLENUM
AIR CYCLE MACHINE TEMPERATURE CONTROL VALVE
CFO0203000_002
Volume 2 Flight Crew Operating Manual Sep 13/2004 CSP 100-6 REV 1
02-03-02 AIR CONDITIONING SYSTEM (Cont) AIR CONDITIONING CONTROLS
Controls for the air conditioning system are located at the AIR COND/BLEED panel on the center pedestal.
CFO0202002_003
Sep 13/2004 Flight Crew Operating Manual Volume 2 REV 1 CSP 100-6
02-03-03 AIR CONDITIONING SYSTEM (Cont)
Temperature selectors — Used to select desired temperature for the cockpit and cabin.
MAN TEMP — Used when automatic temperature control using cabin or cockpit ventilation sensors is not working.
AIR SOURCE selector —
-OFF - both flow control valves will be closed, preventing bleed air for pressurization and air condi-tioning from entering the cabin
-NORM -The normal switch position. This setting allows bleed air from the left and right sides of the manifold to flow through the PACK and the TRIM AIR valves, providing conditioned air to the cabin
-PACK ONLY - Opens the left flow control valve and closes the right flow control valve and pre-cooler crossover valve (PCV), resulting in all bleed air flowing through the PACK and none through the trim air valves. This selection is used when a TRIM AIR failure exists. A PACK ONLY
(S) CAS will be displayed.
- TRIM AIR ONLY - Opens the right flow control valve and closes the left flow control valve and (PCV), resulting in all bleed air flowing through the trim air valves and none through the PACK. This selection is used when a PACK failure exists. A TRIM AIR ONLY (S) CAS will be displayed.
RAM AIR INLET
Ram air enters the aircraft at the ram air inlet at the base of the vertical fin. Ram air is used as the cooling medium for the air-to-air heat exchangers. Ram air passes through the secondary, primary, and precooler heat exchangers where heat is ex-tracted from the air circulated through the air conditioning system. After passing through the heat exchangers, the air is discharged overboard through the exhaust vents.
On the ground, airflow through the ram air inlet is inadequate for cooling the heat exchangers. A fan located in the ram air duct, mechanically driven by the air cycle machine, increases airflow through the duct to cool the heat exchangers.
中国公务机网 www.gongwuji.com
公务机翻译 www.aviation.cn
本文链接地址：庞巴迪挑战者300公务机机组操作手册 Bombardier Challenger-空调和增压 Air Cond and Press(9)
|
