*
A2 galley

*
A3 galley.

The A1 galley is at the center of the passenger compartment, aft of aft door. The galley faces forward.
The A2 galley is on the left side of the passenger compartment, aft of aft door. The galley faces inboard.
The A3 galley is at the right side of the passenger compartment, aft of aft door. The galley faces inboard.
Air Chillers
One or two air chillers (not shown) can be installed in the lower lobe area aft of the bulk cargo compartment. A chiller supplies cold air for refrigeration compartments in the aft fixed galleys.
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BUFFET AND GALLEY -AFT FIXED GALLEY -INTRODUCTION

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BUFFET AND GALLEY -AFT FIXED GALLEY -TRAINING INFORMATION POINTS

Training Information Point
Tie rods attach the top of the galleys to the airplane structure.
Electrical, conditioned air and lavatory/galley ventilation connections are above the galleys.
Some or all of the aft galleys can have potable water and gray water connections. The connections are aft or outboard of the applicable galley, near the floor.
Some aft fixed galleys have air chillers (not shown), external to the galleys to supply cold air for refrigeration. Air chiller ducting can be installed behind one or more of the galleys. The ducting connects the galley refrigeration carts or compartments to an air chiller. One or two air chillers can be in the lower lobe area, aft of the bulk cargo compartment. When you install a galley, make sure the ducts align with the air chiller manifold before you lower the galley into position.
Bolts and hardpoint fittings attach the fixed galleys to the floor. Most of the fittings use shims. Five shims are necessary at each of these fittings. Put shims between the fitting and the galley as necessary to make the galley level. Put the remaining shims under the bolt heads.
CAUTION:  WHEN YOU INSTALL THE GALLEYS, DO NOT PERMIT THE GALLEYS TO MOVE AFT PAST THE TIE DOWN FITTING HARD POINTS. DAMAGE TO FLIGHT-CRITICAL WIRING CAN OCCUR. INSPECT THE WIRE BUNDLES AFTER YOU INSTALL THE GALLEYS.
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BUFFET AND GALLEY -AFT FIXED GALLEY -TRAINING INFORMATION POINTS

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BUFFET AND GALLEY -OVERHEAD AIR CHILLER

Purpose
Overhead air chillers supply cold air for refrigeration.
Location
One or two air chiller can be above a galley to which it supplies chilled air. Usual refrigeration for a galley requires only one chiller. The forward galley area is shown as an example for a typical installation of an overhead chiller. These galleys have an overhead chiller(s):
*
F-2.

*
M-1.

Features
The air chiller is a vapor-cycle cooling unit.
The chiller attaches to a carriage with bolts. The carriage has wheels that fit into a rail assembly. The carriage and the rail assembly lets you move the chiller horizontally. The carriage and rail assembly also let you rotate the chillier to a vertical position. When you remove a chiller, remove the bolts that attach the carriage to the rails. Pull the chiller until the wheels on the carriage move into a detent in the rails. Pull down on the chillers to make it rotate to the vertical position. Lift the chiller and carriage up and off of the rails. Lower the chiller and carriage to the floor.
Electrical power and control for the chiller come from its related galley. A wire bundle connects the air chiller to the galley.
Training Information Point
Lower the ceiling panel adjacent to the galley to get access to the air chiller.
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777 AIRCRAFT MAINTENANCE MANUAL

BUFFET AND GALLEY -OVERHEAD AIR CHILLER

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BUFFET AND GALLEY -LOWER LOBE AIR CHILLER

Purpose
The air chiller supplies cold air to the carts or compartments of the aft fixed galleys that need refrigeration.
Location
One or two air chillers can be installed in the lower lobe area, aft of the bulk cargo compartment. Remove the left aft end wall panel to get access.
Supply and return air ducts (not shown) connect the air chillers to the applicable galley. One or more of the galleys can have a supply and return duct connected to it. The ducts go aft and outboard of the chillers, near the aft pressure bulkhead (not shown).
　
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