Removal of the Air Chiller Unit - Galley 2

TASK 25-34-51-000-003-A
Removal of the Air Chiller Unit - Galley 2

ZONE: 220

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
220	FWD CAB UTILITY AREAS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Air Chiller - Galley 2

3. Job Set-up
Subtask 25-34-51-861-054-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 25-34-51-941-052-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the overhead panel, on AIR COND panel 30VU:
(a) Make sure that these pushbutton switches are released:

APU BLEED pushbutton switch (the ON legend is off)
All the ENG BLEED pushbutton switches (the OFF legends are on)
PACK 1 and PACK 2 pushbutton switches (the OFF legends are on).

(b) Put the WARNING NOTICE(S) in position to tell persons not to operate these pushbutton switches.
(2) On the HP and LP ground-air connectors:
(a) Put the WARNING NOTICE(S) in position to tell persons not to connect the ground air supply.

Subtask 25-34-51-865-082-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ELEC/GALLEY/CNTOR	7MC	S28
122VU	ELEC/GALY & CAB/CTL	1XA	S26
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL	5HU	U21
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY	6HU	U19
123VU	FWD GALLEY/FEEDER F	16MC	AC10
123VU	FWD GALLEY/FEEDER D	2MC	AD04

Subtask 25-34-51-010-052-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove the decorative material, if necessary.

4. Procedure
Subtask 25-34-51-020-053-A ** ON A/C NOT FOR ALL

WARNING: SUPPORT THE UNIT/ASSEMBLY. THE UNIT/ASSEMBLY IS HEAVY. IF YOU DO NOT SUPPORT IT, IT WILL FALL. THIS CAN CAUSE INJURY TO PERSONS, AND/OR DAMAGE TO EQUIPMENT.

A. Removal of the Air Chiller Unit - Galley 2

Air Chiller - Galley 2 ** ON A/C NOT FOR ALL

(1) Remove the screws (1) and the panel (2).
(2) Remove the screws (6) and the shelf assembly (5).
(3) Remove the screws (4) and the side panel (3).
(4) Disconnect the electrical connectors (10) and (9).
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(6) Remove the screws (8).
(7) Carefully remove the air chiller (7).

[Rev.9 from 2019] 2026.03.31 23:34:03 UTC