SENSOR - CABIN TEMPERATURE 21-63-17
INSPECTION/CHECK 601 ALL
Detailed Visual Inspection of the 601 ALL
Cockpit (Cabin) Temperature Sensor
21HK (22HK, 23HK) and Ducting for
Contamination
SENSOR - DUCT OVERHEAT TEMPERATURE 21-63-18
REMOVAL/INSTALLATION 401 051-052,
Removal of the Duct 401 051-052,
Overheat-Temperature Sensors 18HK,
19HK and 20HK
Installation of the Duct 405 051-052,
Overheat-Temperature Sensors 18HK,
19HK and 20HK
PRESSURE SWITCH - HOT AIR 21-63-19
REMOVAL/INSTALLATION 401 ALL
Removal of the Hot Air-Pressure 401 ALL
Switch 26HK
Installation of the Hot 405 ALL
Air-Pressure Switch 26HK
CONTROLLER - ZONE 21-63-34
REMOVAL/INSTALLATION 401 001-049, 051-099 101-149, 151-199 201-299, 301-399 Removal of the Zone Controller 401 001-049, 051-099 (8HK) 101-149, 151-199 201-299, 301-399 Installation of the Zone 404 001-049, 051-099 Controller (8HK) 101-149, 151-199
201-299, 301-399 CHECK VALVE -TRIM AIR 21-63-42 REMOVAL/INSTALLATION 401 ALL
21-CONTENTS Page 45 Aug 01/05 R CES
CHAPTER 21
__________
AIR CONDITIONING
TABLE OF CONTENTS
_________________
SUBJECT_______ CH/SE/SU _ PAGE EFFECTIVITY
________ C ____ ___________ Removal of the Trim-Air Check 401 ALL Valves 18HM and 19HM Installation of the Trim-Air Check 409 ALL Valves 18HM and 19HM
CHECK VALVE -TRIM AIR 21-63-42
INSPECTION/CHECK 601 ALL Detailed Visual Inspection of 601 ALL Trim-Air Check-Valves Flappers for Condition and Operation
VALVE - TRIM AIR 21-63-51
REMOVAL/INSTALLATION 401 ALL Removal of the Trim Air Valve 401 ALL (11HK, 12HK, 13HK) Installation of the Trim Air Valve 410 ALL (11HK, 12HK, 13HK)
VALVE - PRESSURE REGULATING 21-63-52
REMOVAL/INSTALLATION 401 ALL Removal of the Pressure Regulating 401 ALL Valve 14HK Installation of the Pressure 406 ALL Regulating Valve 14HK
21-CONTENTS Page 46 Aug 01/05
CES AIR CONDITIONING - GENERAL - DESCRIPTION AND OPERATION
______________________________________________________
1. General
_______ (Ref. Fig. 001) The air conditioning system keeps the air in the pressurized fuselage compartments at the correct pressure, temperature and freshness. In normal conditions, the pneumatic system supplies air to the air conditioning system from:
-
the main engine compressors,
-
the APU compressor,
-a high-pressure ground-air supply-unit.
The hot compressed air is cooled, conditioned and supplied to the fuselage
compartments and then discharged overboard through the outflow valve.
You can also supply conditioned air to the distribution system through a low
pressure ground-connection.
2. System Description
__________________ The air conditioning system gives satisfactory values of pressure, temperature and freshness of the air in the pressurized fuselage .
A. Sub-systems The air conditioning system consists of the following sub-systems:
-distribution
-pressurization control,
-air cooling,
-temperature control.
(1) Distribution System (Ref. 21-20-00) R The distribution system delivers conditioned air to the pressurized R fuselage. R
(2)
Pressurization Control System (Ref. 21-30-00) The pressurization control system controls the pressure in the fuselage. It operates fully automatically and has a manual backup. The pressure change rate is controlled to give satisfactory pressure values of safety and comfort for the passengers and crew.
(3)
Air Cooling System (Ref. 21-50-00) The air cooling system decreases the temperature of the hot bleed air from the pneumatic system. It also reduces the quantity of water in the hot bleed air. Emergency ram air is supplied if there is a failure in the two air conditioning packs.
1EFF : ALL 1 21-00-00Page 1 1 1 Nov 01/02 1 1 1CES 1
R Air Conditioning System - General Figure 001
1EFF : 1 1 1CES ALL 1 111 21-00-00 Page 2 Nov 01/02
(4) Temperature Control System (Ref. 21-60-00) The temperature control system controls the temperature of the air supplied to the cockpit and cabin. You can adjust the temperature in the cockpit and the cabin independently.
B. Air Supply Quantities and Flow Split For the normal operation and most important failure cases the total airflows supplied to the cockpit and passenger cabin are shown in table
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