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Cabin Interior: Aircraft Galleys

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Aircraft Cabin: Water System
Aircraft Cabin: Water System
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Cabin Interior: Aircraft Galleys

  1. 1. Malaysian Institute of Aviation Technology Aircraft galleys
  2. 2. Malaysian Institute of Aviation Technology Introduction to Galleys • Electrical appliances and trolleys • Galley equipment can include: - Storage locations for trolleys and carts - Beverages makers - Ice makers - Water supply (hot and cold) - Water heater - Trash compactors - Lighting - Interphone system - Fume extraction system - Water waste system - Toasters etc - Screen curtains - A means of chilling cold cupboards (usually provided by a vapor cycle chiller unit located near to the galley
  3. 3. Malaysian Institute of Aviation Technology • power is controlled by a switch on the Flight Engineer’s upper panel. also control switches in the galley for individual equipment control. • Fitted at the back of the a/c or, at centre location for larger a/c Aircraft galleys
  4. 4. Malaysian Institute of Aviation TechnologyGALLEYS
  5. 5. Malaysian Institute of Aviation Technology Fig 31 Galley 1
  6. 6. Malaysian Institute of Aviation Technology A320 Rear Galley The galley is made up of two half width modules that may be located separately on some a/c. Note the positive locking of the service trolley – by regulation
  7. 7. Malaysian Institute of Aviation Technology Galley Seat Track Fitting - Galley are located onto and bolted down to the seat tracks, in a manner not dissimilar to seats. In addition, tie rods are attached between the top of the galley and the a/c fuselage.
  8. 8. Malaysian Institute of Aviation Technology Galleys • Use a considerable amount electric, have their own feeder circuits that will be load-shed automatically in times of high current demand. • power may come direct from the secondary a/c busses or be provided through Electric Load Control Units, ELCU’s, measure the current being drawn by the galleys and prevent overload. • ELCU also act as a switch to remove the power to the whole galley complex should a/c power consumption become high.
  9. 9. Malaysian Institute of Aviation Technology Galleys • have an electric distribution panel accessible from the front of the galley i.e. allows for individual isolation of ovens etc by C/B action. • This panel has a light to indicate that power to the galley is on. • All system have control switches and are located close to the galley, a master isolation switch for both electric and water supply.
  10. 10. Malaysian Institute of Aviation Technology Galley Chiller Unit
  11. 11. Malaysian Institute of Aviation Technology Galley Chiller Unit • Is a small Vapour Cycle Cooling Pack (VCCP). • switched on from the galley control panel. • The fan motor drives two fans: - 1st draws air from the cold cupboard, and after cooling, passes it back to the cold cupboards in the galley. - 2nd draws in ambient air to act as a heat sink from the condenser (cools the condenser), it is discharged overboard. • Chiller air is drawn across the evaporator and cooled by heat transfer to the refrigerant (Freon/similar) and passed back trough the ducting to the cold cupboards.
  12. 12. Malaysian Institute of Aviation Technology Galley Chiller Unit- VCCP • VCCP relies on the principles that as the refrigerant changes state from liquid to gas (from the chiller air) • A timer operates the VCCP in 10 min cycles. • If at the end of the cycle, the temp of refrigerant is less than 26°F (-3°C), then automatic defrost is initiated, this involve the fan being shutdown and the hot gas by-pass valve being opened. Defrost stops when the temp reaches 4°C.
  13. 13. Malaysian Institute of Aviation Technology Galley Chiller Unit- VCCP • Some chiller may be shut down when the cargo fire extinguisher system is armed. • To help reduce the noise levels from chiller, they are mounted on anti-vibration mounts. • Maintenance of the chiller unit is confined to checking for security, leaks, damage and correct contents level
  14. 14. Malaysian Institute of Aviation Technology
  15. 15. Malaysian Institute of Aviation Technology Automatic shut down is initiated if any operating parameters are exceeded eg: i. Refrigerant temperature higher than 54°C. ii. Refrigerant pressure higher than 300psi iii. Refrigerant pressure lower than 5psi iv. Compressor over temps.
  16. 16. Malaysian Institute of Aviation Technology Other Galley Equipment • Trash Compactor - is a large press that squashes the trash to reduce its volume. If this is not fitted the galley will have a simple bin arrangement that has a hinged top access panel. • Beverages makers - are installed to brew hot drinks. Electrically powered, with a supply of potable water. Have lights on the front the indicate low water and system On.
  17. 17. Malaysian Institute of Aviation Technology - On twin deck aircraft to allow the carts (service trolley) to be loaded on the lower deck and transported to the upper deck galley. - -On B747,the lift is driven by two motors that drive a vertical screw jack. - lift is attached to ball nut assemble that allows the lift to be lowered and raised between floors. GALLEY LIFT
  18. 18. Malaysian Institute of Aviation Technology -Micro switches prevent the lift from moving unless the door is closed. - Mechanical locks will prevent the access door to the lift shaft from being opened unless the lift is in front of it. GALLEY LIFT - continue
  19. 19. Malaysian Institute of Aviation Technology Oven and Water Heater -oven is fitted on top and the water heater at the bottom. -The control panels are at the topmost and the middle of the installation.
  20. 20. Malaysian Institute of Aviation Technology Oven and Water Heater Power switch
  21. 21. Malaysian Institute of Aviation Technology The oven is fitted with a fan and heater with a timer and heater control. The oven system consists of: Oven with a side opening door and electrically connected via a connector at the rear. A two position Galley On-Off Switch on the P4 panel. A two position Oven On-Off Switch, power light (amber) & fuse on the lower control panel A Power On Light (Red) and Timer Select Rotary Switch on the upper control panel. A Heater On Light (Amber) and Temperature Select Rotary Switch on the upper control panel. Oven and Water Heater
  22. 22. Malaysian Institute of Aviation Technology Oven and Water Heater The water heater system consist of: Water heater that slides into a holder and simultaneously electrically connects to the power supply via two pins located at the back of the water heater. A Water Heater On-Off switch, power light (amber) and fuse on the lower control panel. A Water heater temperature select rotary switch fitted on the lower control panel. Then power is routed through a fuse and a switch on the oven lower control panel
  23. 23. Malaysian Institute of Aviation Technology Oven and Water Heater Power On light and Operation time rotary switch Heater On light and Temperature rotary switch Water Heater On-Off Switch, Light & Fuse Oven On- Off Switch, Light & Fuse
  24. 24. Malaysian Institute of Aviation Technology Oven and Water Heater Oven Operation 1.The oven is switched on by putting the galley two position (On-Off) switch on P4 to ON. 2. The oven two position (On-Off) switch on the lower control panel is selected ON And the power light illuminates (amber). 3. The Power On red light on the left-hand side of the top control panel will illuminate when the timer rotary switch is selected. The timer may be selected up to 60 minutes of oven operation and is graduated every minute. 0, 10, 20, 30, 40 and 50 minutes are marked.
  25. 25. Malaysian Institute of Aviation Technology Oven and Water Heater Oven Operation 1.Heating amber light on the right hand side of the top control panel will illuminate when the temperature rotary switch is selected, temperature may be selected up to 450 degrees and is graduated every 50 degrees. 150, 250, 350 and 450 degrees are marked. 2.The oven is switched off by selecting the oven switch on the lower control panel to Off
  26. 26. Malaysian Institute of Aviation Technology Oven and Water Heater Power On light and Operation time rotary switch Heater On light and Temperatur e rotary switch Water Heater On-Off Switch, Light & FuseOven On-Off Switch, Light & Fuse
  27. 27. Malaysian Institute of Aviation Technology Water Heater Operation 1.The water heater oven is switched on by putting the galley two position (On-Off) switch to ON. 2.The water heater two position (On-Off) switch on the lower control panel is selected ON. 3.The Temperature Select rotary switch rotated to the desired temperature. And the power light illuminates (amber). 4.The water heater is switched off by selecting the water heater switch on the lower control panel to Off Oven and Water Heater
  28. 28. Malaysian Institute of Aviation Technology Oven and water heater installationcover panel. OVEN AND HEATER MAINTENANCE PRACTICES The water heater is removed/installed by sliding in or out from the holder. Oven removal/installation is carried out by removing a cover panel located in the toilet (4 bolts)
  29. 29. Malaysian Institute of Aviation Technology 2 installation bolts Oven connector 1. Remove cover panel. 2.Disconnect connector at the top rear of oven. 3.Remove two bolts at the bottom forward of oven fixture. 4.Slide oven out from the front out of the fixture. 5 Installation is carried out by reversing the above actions. Oven Removal/Installation

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