(d)
Close the access door, 192NR, for the right air conditioning bay.
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A 747-400 MAINTENANCE MANUAL
(3) S 864-038Do these steps if you installed the Flight Deck valve: (a) Set the FLT DECK TEMP selector on the P5 panel to AUTO. (b) Install the ceiling panel that you removed (AMM 25-59-01/401).
(4) S 864-039Do these steps if you installed the upper deck or the crew rest area valves: (a) Push the RESET switch on the Cabin Temperature Selector, M7914. (b) Set the FLT DECK TEMP selector on the P5 panel to AUTO. (c) Install the ceiling panel that you removed (AMM 25-59-01/401).
(5) S 864-047Stop the air conditioning pack(s) (AMM 21-00-00/201).
(6) S 864-043Remove the pneumatic power (AMM 36-00-00/201).
(7) S 864-032Remove the electrical power if it is not necessary (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
CABIN TEMPERATURE CONTROL MODULE - REMOVAL/INSTALLATION
_______________________________________________________
1. General
_______
A. There are two tasks in this procedure. The first task is the removal of the cabin temperature control module. The second task is the installation of the cabin temperature control module.
B. The cabin temperature control module is installed in the P5 overhead panel.
TASK 21-61-11-004-001
2. Cabin Temperature Control Module Removal (Fig. 401)
________________________________________
A. References
(1)
AIPC 21-61-00 Fig. 05
(2)
AMM 24-22-00/201, manual control
(3)
SSM 21-61-05
(4)
WDM 21-24-11, WDM 21-25-11, WDM 21-25-21, WDM 21-44-11, WDM 21-51-11, WDM 21-51-11, WDM 21-51-22, WDM 21-51-23, WDM 21-58-11, WDM 21-58-14, WDM 21-58-21, WDM 21-61-93
B. Access
(1) Location Zone
222 Control Cabin
C. Procedure
S 864-002
(1)
Open these circuit breakers and attach the DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel 1) 6L8, EQUIPMENT COOLING PCA 2) 6H28, OVHD RECIRC FAN 3) 6H29, UNDERFLOOR RECIRC FAN CONT
(b)
P7 Overhead circuit breaker panel:
1) 7H9, AFT CARGO HEAT CONT
(c)
P180 DC power distribution panel: 1) 180F11, GASPER FAN CONT 2) PK 1 FLOW CONT VLV 3) 180J2, PK 1 PROTECTION 4) 180F2, PK 2 PROTECTION 5) 180J17, PK 3 PROTECTION 6) 180F4, EQUIPMENT COOLING VALVE CONT 7) 180H30, EQUIPMENT COOLING EXHAUST FAN CONT
(2)
Make sure all electrical power is off (AMM 24-22-00/201).
S 024-012
(3)
Loosen the four screws that attach the cabin temperature control module in the P5 panel.
S 864-015
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747-400
MAINTENANCE MANUAL
CABIN TEMPERATURE CONTROL MODULE, M7329
Cabin Temperature Control Module Installation
Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 空调 AIR CONDITIONING 2(156)
