AIR COOLING SYSTEM - REMOVAL/INSTALLATION
_________________________________________ TASK 21-52-00-920-001 R Removal and Replacement of the Combo and Periseals in the Air Conditioning Pack R Ducts
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 215200-07
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 21-51-51-000-001 R 21-51-51-400-001 R R 21-52-16-000-001 R 21-52-16-400-001 R 21-52-21-000-001 R 21-52-21-400-001 R 21-52-23-000-001 R R 21-52-23-000-002 R R 21-52-23-000-003 R R R 21-52-23-400-001 R R 21-52-23-400-002 R R R 21-52-23-400-003 R R R 21-52-24-000-001 R R 21-52-24-400-001 R R 21-52-31-000-001 R 21-52-31-400-001 Removal of the Pack Flow-Control Valve 8HB and (11HB) Installation of the Pack Flow-Control Valve 8HB (11HB) Removal of the Water Extractor 10HM8 (11HM8) Installation of the Water Extractor 10HM8 (11HM8) Removal of the Air Cycle Machine 10HM1 (11HM1) Installation of the Air Cycle Machine 10HM1 (11HM1) Removal of the Pipe Assembly between the Main Heat Exchanger and the Air Cycle Machine Removal of the Pipe Assembly between the Anti-Ice Valve, the Bypass Valve and the Air Cycle Machine Removal of the Pipe Assembly between the Anti-Ice Valve and the Bypass Air Duct of the Primary Heat Exchanger Installation of the Pipe Assembly between the Main Heat Exchanger and the Air Cycle Machine Installation of the Pipe Assembly between the Anti-Ice Valve, the Bypass Valve and the Air Cycle Machine Installation of the Pipe Assembly between the Anti-Ice Valve and the Bypass Air Duct of the Primary Heat Exchanger Removal of the Heat Exchanger Unit 10HM4 (11HM4) (From the Aircraft) Installation of the Heat Exchanger Unit 10HM4 (11HM4) (Into the Aircraft) Removal of the Reheater 10HM3 (11HM3) Installation of the Reheater 10HM3 (11HM3) -------------------------------------------------------------------------------

REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
21-52-32-000-001 Removal of the Condenser 10HM2 (11HM2)
 21-52-32-400-001 Installation of the Condenser 10HM2 (11HM2)
 21-61-53-000-001 Removal of the Bypass Valve 10HH (30HH)
 21-61-53-400-001 Installation of the Bypass Valve 10HH (30HH)

 3. Job Set-up
__________
 Subtask 21-52-00-010-069

 A. Not applicable
 4. Procedure
_________
 Subtask 21-52-00-920-050
R A. Remove, discard and replace the seals in:
R (1) The flow control valve (Ref. TASK 21-51-51-000-001) and (Ref. TASK
 21-51-51-400-001).
 (2)
 The water extractor (Ref. TASK 21-52-16-000-001) and (Ref. TASK 21-52-16-400-001).

 (3)
 The air cycle machine (Ref. TASK 21-52-21-000-001) and (Ref. TASK 21-52-21-400-001).

 (4)
 The pack connection pipes (Ref. TASK 21-52-23-000-001) and (Ref. TASK 21-52-23-400-001),

 -(Ref. TASK 21-52-23-000-002) and (Ref. TASK 21-52-23-400-002),
 -and (Ref. TASK 21-52-23-000-003) and (Ref. TASK 21-52-23-400-003).

 (5)
 The heat exchanger area (Ref. TASK 21-52-24-000-001) and (Ref. TASK 21-52-24-400-001).

 (6)
 The re-heater (Ref. TASK 21-52-31-000-001) and (Ref. TASK 21-52-31-400-001).

 (7)
 The condensor (Ref. TASK 21-52-32-000-001) and (Ref. TASK 21-52-32-400-001).

 (8)
 The bypass valve (Ref. TASK 21-61-53-000-001) and (Ref. TASK 21-61-53-400-001).

 AIR COOLING SYSTEM - ADJUSTMENT/TEST
____________________________________
 TASK 21-52-00-710-002
 Operational Test of the Air Cooling System

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-61-00-710-001  Operational Test of the Pack Temperature-Control System
 3. Job Set-up
__________
 Subtask 21-52-00-010-054

 A. Not applicable.
 4. Procedure
_________
 Subtask 21-52-00-710-052

 A. Do the operational test of the pack temperature control (Ref. TASK 21-61-
00-710-001) R TASK 21-52-00-780-001

 Pressure Drop Test of the Reheater 10HM3 (11HM3)
 WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
　
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