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.

 S 864-006

 (3)  
Disconnect the electrical connector.

 S 034-004

 (4)  
Loosen the fasteners on the sides of the air conditioning module.

 S 024-007

 (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.
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 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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.

 S 424-009

 (3)  
Connect the electrical connector.

 S 414-010

 (4)  
Lift (close) the overhead P5 panel.

 S 864-011

 (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).

 S 864-018

 (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.

 S 214-020

 (4)  
　
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