DOC AIRBUS | AMM A320FGALLEY COOLING - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The galley cooling system supplies cold air from the air chiller unit to the galley-trolley stowage compartments. The cold air keeps food and beverages in the trolleys cold.
** ON A/C NOT FOR ALL The galley cooling system supplies cold air from the air chiller unit to the galley-trolley stowage compartments. The cold air keeps food and beverages in the trolleys cold.
2. Component Location
The air chiller unit is installed in the forward and/or mid and/or aft galley(s).
** ON A/C NOT FOR ALL The air chiller unit is installed in the forward and/or mid and/or aft galley(s).
Air Chiller Unit - Location3. System Description
The air chiller unit supplies cold air to keep the contents of the trolleys and the trolley stowage compartments cold.
The cold air is supplied to the trolleys through the insulated ducts which are installed in the upper lining of the trolley stowage compartment. The air from the trolley stowage compartment goes back to the air chiller unit through the ducts installed in the compartment sidewall. The cold air goes through the evaporator and then back to the galley in a closed cycle.
The air for the chiller condenser goes through a filter installed in front of the unit. The exhaust-air from the chiller condenser is released through a duct into the exhaust-air system. The drain water of the air chiller unit drains into the aircraft bilge-drainage system or the waste water system of the galley.
** ON A/C NOT FOR ALL The air chiller unit supplies cold air to keep the contents of the trolleys and the trolley stowage compartments cold.
The cold air is supplied to the trolleys through the insulated ducts which are installed in the upper lining of the trolley stowage compartment. The air from the trolley stowage compartment goes back to the air chiller unit through the ducts installed in the compartment sidewall. The cold air goes through the evaporator and then back to the galley in a closed cycle.
The air for the chiller condenser goes through a filter installed in front of the unit. The exhaust-air from the chiller condenser is released through a duct into the exhaust-air system. The drain water of the air chiller unit drains into the aircraft bilge-drainage system or the waste water system of the galley.
4. Power Supply
The air chiller unit is connected to the 115/200V AC power-supply. A pushbutton switch on the overhead electrical panel sets the unit to the on and off positions. A circuit breaker on the overhead electrical panel prevents damage to the circuit.
** ON A/C NOT FOR ALL The air chiller unit is connected to the 115/200V AC power-supply. A pushbutton switch on the overhead electrical panel sets the unit to the on and off positions. A circuit breaker on the overhead electrical panel prevents damage to the circuit.
5. Interface
The air chiller unit has interfaces with:
** ON A/C NOT FOR ALL The air chiller unit has interfaces with:
- water/waste system (Ref. AMM D/O 38-00-00-00)
- lavatory/galley ventilation system (Ref. AMM D/O 21-23-00-00)
- galley supply system (Ref. AMM D/O 24-56-00-00).
6. Component Description
The air chiller unit has a closed loop system.
The components of the closed loop system are:
The air chiller unit has a closed loop system.
The components of the closed loop system are:
- evaporator
- compressor
- The condenser
- The filter/drier
- The intercooler
- The blower assembly.