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A 737-300/400/500MAINTENANCE MANUAL AIR CONDITIONING MODULE - REMOVAL/INSTALLATION ______________________________________________ 1. General A. These tasks are in this procedure. (1) Air Conditioning Module Removal
(2) Air Conditioning Module Installation.
TASK 21-51-01-004-002 2. Air Conditioning Module Removal (Fig. 401)_______________________________ A. Access (1) Location Zone 102 Control Cabin
B. Removal Procedure S 864-003 (1) Open these circuit breakers and attach DO-NOT-CLOSE tags: (a) P5, Overhead Control Panel 1) P6C4 AIR CONDITIONING VALVE L 2) P6C3 AIR CONDITIONING VALVE R
S 014-012 (2) Lower the P5 panel to get access to the P5-10 air conditioning module on the forward overhead panel in the flight deck.
(3) Disconnect the electrical connector.
(4) Loosen the fasteners on the sides of the air conditioning module.
(5) Remove the air conditioning module.
TASK 21-51-01-404-001 3. Air Conditioning Module Installation (Fig. 401)____________________________________ A. Reference (1) AMM 21-52-00/501, Ram Air System B. Access (1) Location Zone 102 Control Cabin
C. Installation Procedure S 984-013 (1) Put the air conditioning module in its place in the overhead panel. EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
21-51-01 ALL ú ú 01 Page 401 ú Mar 15/97 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. A
737-300/400/500MAINTENANCE MANUAL P5-10 AIR CONDITIONING MODULE SEE A DUAL RAM DOOR RAM DOOR BLEED FULL OPEN
FULL OPEN RECIRC FAN OFF AUTO 40 60 OVHT 80 PSI 0 100 TEST L PACK R PACK ISOLATION OFF VALVE OFF AUTO CLOSE AUTO
HIGH AUTO HIGH WING WING PACK PACK OPENANTI ANTI ICE
TRIP OFF TRIP OFF ICE WING-BODY WING-BODY OVERHEAT
TRIP OVERHEAT BLEED TRIP OFF
BLEED TRIP OFF RESET OFF OFF SCREW ON ON 1 APU2 (6 LOCATIONS) BLEED AUTO OFF SCHED STANDBY MANUAL FAIL DESCENT P5-10 AIR CONDITIONING MODULE A Air Conditioning Module Installation Figure 401
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21-51-01 ALL ú ú 03 Page 402 ú Nov 15/96 BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. G15594 A 737-300/400/500MAINTENANCE MANUAL S 424-014 (2) Tighten the fasteners on the side of the air conditioning module.
(3) Connect the electrical connector.
(4) Lift (close) the overhead P5 panel.
(5) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6, Main Power Distribution Panel 1) P6C4 AIR CONDITIONING VALVE L 2) P6C3 AIR CONDITIONING VALVE R
D. Installation Test Procedure S 864-016 (1) Supply electrical power to the airplane (AMM 24-22-00/201).
(2) Make sure that these circuit breakers on the P6-3 panel are closed:
(a) MASTER CAUTION (all except FUEL, if installed)
(b) Indicator lights, master dim bus (9 locations)
(c) DIM & TEST (1 location)
(d) NOSE GEAR AIR/GND
(e) LANDING GEAR AIR/GND RELAY & LTS
S 864-019 (3) Make sure that all the circuit breakers for the air conditioning and the pneumatic systems are closed.
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