FIGHTER CABIN/TEMP CNTRL

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Author:
carLORENZ0
ID:
256238
Filename:
FIGHTER CABIN/TEMP CNTRL
Updated:
2014-01-14 04:50:32
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  1. Cabin Temp Control Valve -
    • + Loose Air or PWR - SHUTS OFF
    • - Controlled in AUTO or MANUAL 
    • - MANUAL -controlled by Selector SW
  2. 1) CABIN TEMP/CONTROL VALVE
    2) CABIN TEMP S/C 
    3) CABIN TEMP SELECTOR SW
    4) CABIN TEMP SENSOR
    5) DUCT TEMP SENSOR
    5 COMPONENTS IN AUTO:
  3. Cabin Temperature/Sensor is controlled by ______
    EDC S/C 'The Brain'
  4. 1) TEMP SELECTOR
    2) CABIN TEMP CONTROL VALVE 

    -FULL CLOSED
    -FULL OPEN

    +FULL COLD - 50 Degrees
    +FULL OPEN - 60 Degrees
    IN MANUAL
  5. Cabin Temp @158 Degrees:
    DEFOG
  6. When Cabin reaches 177 degree the ______ takes over.
    EDC S/C 'The Brain'
  7. All 3 Bleed Air Valves - Shuts off AC SYS.
    Air-Over Temp. Relay
  8. To control mixing Hot & Cold Air
    Purpose Fighter Cabin Temp Control
  9. Senses Temp @ Supply Duct 

    (2 Positive Coefficients) [ Trouble-shooting + - ]
    Duct Temp Sensor
  10. NEGATIVE COEFFICIENT 

    + senses cabin temperature 

    + provides input signals cabin temperature/sensor controller

    + located in the forward area of the cabin right console.
    Cabin Temperature Sensor
  11. -located near cabin sensor 
    -Fan draws air across cabin sensor
    +allows more accurate temp. readings for cabin temp sensor/controls 
    + quicker response time
    Axial Flow Sensor Fan
  12. Pilot uses to select desired temps.- 2 modes AUTO & MANUAL+ sends signals to cabin
    Cabin Temp Selector SW
  13. (IT) SW to SENSOR/CONTROLLER (for desired temperature)

    *Pilot can adjust to auto to maintain cockpit temp between 50 degrees & 80 degrees F.
    Cabin Temp Selector SW (AUTO)
  14. - Sends Signals Directly to Valve 
    +allows cabin temp. control valve to be positioned.
    Cabin Temp Selector SW (MANUAL)
  15. +controls amount of hot & cold air mixing

    {HOT AIR VALVE}

    - pneumatically actuated (servo air) OPENED
    - spring-loaded closed valve
    Cabin Temperature Control Valve
  16. monitors supply duct temps
    - energize cabin temp control valve relay.
    + minimize sys. shutdown.

    @ 177 degree, it takes over to maintain cabin temp.
    EDC S/C 'Brain'
  17. - provides cabin temperature control by controlling the position of the cabin temperature control valve. 

    - utilizes temp input signals from the cabin temp. sensor & its own internal duct sensor to modulate the cabin temp. control valve.

    Anywhere between FULL OPEN (hot) & the FULL CLOSED (cold) position.
    Cabin Temperature Sensor/Controller
  18. +located in the cabin supply air duct
    + monitors air temp. entering the cabin. 
    + provided as a back up to the EDC S/C to prevent damage to the ECS and aircraft.

    When temp in cabin reaches 200 Degrees F, IT will close and complete an electrical circuit to energize the air-over temp. relay.
    Cockpit Supply Thermo Static SW
  19. + a plug-in type relay 
    + located in the air-conditioning matrix assembly 
    - when energized by the BRAIN, relay opens the PWR CKT to the cabin temp control valve & causes it to close.

    - Thus stopping flow of hot air into the cabin.
    Cabin Temperature Control Relay

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