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R R R R R R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC  53HH 55HH 49HH 51HH 56HH 54HH 50HH  W22 W21 X22 X21 Y21 Y20Y18 
**ON A/C ALL
 Subtask 21-00-00-210-050
 S. Inspection of the ECS for Contamination
 WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING_______ SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE. HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
 WARNING : DO NOT TOUCH THE COMPONENT UNTIL IT IS SUFFICIENTLY_______ COOL TO PREVENT BURNS.
 (1) Do a check by hand for oil contamination in the condensers 10HM2 and 11HM2.
 (2) If there is no oil contamination in the condensers then carry on with the preparation for and stage 2 cleaning of the ECS.
 (3) If you find oil contamination in the condensers then you must: - clean the components in the system as necessary (Ref. TASK 21-00-00-100-001), - carry on with the preparation for and stage 2 cleaning of the ECS.
 (4) If you find large deposits of oil contamination in the condensers then you must also remove, overhaul or replace and install the air cycle machine (Ref. TASK 21-52-21-000-001), (Ref. TASK 21-52-21-400-001) and (Ref. CMM 215202).

 

 Subtask 21-00-00-869-052
 T. Preparation for Stage 2 Cleaning of the ECS
 (1)
 Remove the special blanking caps from the check valve 15HM and from the check valve 16HM duct flange.

 (2)
 Install the sleeves and the clamps on the check valve 15HM and on the check valve 16HM duct flange (Ref. TASK 21-52-43-400-001).

 (3)
 Install the sleeves and the clamps on the condensers 10HM2 and 11HM2 (Ref. TASK 21-52-32-400-001).

 NOTE : Make sure that after the installation you do the leak check of
____ the connections in work steps (2) and (3).
 Subtask 21-00-00-865-057
 U. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
 -------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
 -------------------------------------------------------------------------------

R **ON A/C 401-499,
 49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC 52HH D08
 **ON A/C ALL
 121VU APU/APU/CTL 2KD L42
 121VU APU/ECB/SPLY 1KD L41

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 21HH W22 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 23HH W21 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 24HH Y21 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 22HH Y20
R

R  -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302, 
R  122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC  4HH  Y19 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 
R  122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC  2HH  Y18 
R  **ON A/C 106-149, 303-399, 
R  122VU  4HH  Y19 
R  **ON A/C 401-499, 
R R R R R R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC  53HH 55HH 49HH 51HH 56HH 54HH 50HH  W22 W21 X22 X21 Y21 Y20Y18 
**ON A/C ALL
 Subtask 21-00-00-860-056
 V. Do the Procedure to Start the APU - (Ref. TASK 49-00-00-860-003) or, - (Ref. TASK 49-00-00-860-005) or, - (Ref. TASK 49-00-00-860-008). 

R 1EFF : ALL 1 21-00-00Page 224 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 001-003, 051-054,

 Subtask 21-00-00-160-052
 W. Stage 2 Cleaning of the ECS WARNING : MAKE SURE THAT THERE ARE NO PERSONS OR EQUIPMENT NEAR THE RAM
_______ AIR OUTLET FLAPS. MOVEMENT OF THE RAM AIR OUTLET FLAPS AND HOT EXHAUST GASES CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
 CAUTION : MAKE SURE THAT THE AREA NEAR THE RAM AIR INLET IS CLEAN AND
_______ FREE FROM LOOSE ARTICLES. LOOSE ARTICLES CAN GO INTO THE RAM AIR INLET AND CAUSE DAMAGE TO EQUIPMENT.
 NOTE : You may get smoke and/or fumes when you do this cleaning task.
　
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