Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Page 10-9
Pilot’s Operating Manual
Revision A1: Nov, 2002
Sub-section 10
ENVIRONMENTAL
Hawker 800XP Pro Line 21
Section III - SYSTEMS DESCRIPTION
CABIN TEMPERATURE CONTROL SYSTEM
Temperature of the air delivered to the cabin may be varied by the flight crew via selections on the
CABIN TEMP AUTO-MANUAL/COOL-HOT temperature selector. AUTO or MANUAL are the two
modes of operation for the cabin temperature system.
AUTO MODE
In the AUTO mode, the required temperature in the cabin is selected by positioning the selector be-
tween COOL and HOT. Temperature is not indicated on the temperature selector, however a full COOL
selection corresponds to 18.32° C (65° F), and a full HOT selection corresponds to 31.1° C (88° F).
A temperature controller using signals from the selector switch, a duct temperature sensor, and a cabin
temperature sensor unit, determines whether an increase or decrease of temperature is required.
Resulting signals from the controller cause the cabin temperature control valve to open or close
accordingly. A CABIN TEMP indicator, on the overhead roof panel, is connected to a temperature bulb
at the right forward cabin bulkhead position. An electrically operated fan draws air through a grill in the
cabin and across the temperature bulb and the cabin temperature sensor. The duct over temperature
limiting sensor and the low limit control system both remain operative in the MANUAL mode.
MANUAL MODE
The MANUAL mode is selected by moving the CABIN TEMP selector through a detent to the MANUAL
spring-loaded center-off position. Holding the selector to either COOL or HOT (as required) directly
controls the position of the cabin temperature control valve. Releasing the CABIN TEMP selector to the
center-off position, stops the cabin temperature control valve in the attained position. The duct over
temperature limiting sensor and the low limit control system both remain operative in the MANUAL
mode.
AUTO
HOT
COOL
CABIN
°
C
0
10
20
30
40
50
MANUAL
CABIN TEMP
Overhead Roof Panel