• 21 - Air Conditioning/Pressurization

  
  21-00-00 Environmental Control System Synoptic Displays (MFD ECS Page)
  
  21-00-01 Air Management System (AMS) Channels
  
  21-21-04 Pilots Feet Outlet Shutoff Valves
  
  21-23-00 Gasper System
  
  21-24-01 Recirculation Fans
  
  21-24-02 Recirculation Air Filters
  
  21-24-04 Recirculation System Smoke Detector
  
  21-25-01 Emergency Ram Air Valve
  
  21-25-03 Emergency Ram Air Check Valve
  
  21-27-01 Forward Compartment Cargo Fan
  
  21-27-03 Forward Cargo Compartment Check Valve
  
  21-27-04 Forward Cargo Compartment Shutoff Valve
  
  21-29-02 Low Pressure Ground Connection Check Valves
  
  21-31-01 Cabin Pressure Control System (CPCS) Controller Channels
  
  21-31-02 Outflow Valve
  
  21-31-05 Outflow Valve Indications on MFD
  
  21-31-07 Cabin Rate of Climb Indication on EICAS
  
  21-31-09 Cabin Differential Pressure Indication on EICAS
  
  21-31-11 Cabin Altitude Indication on EICAS
  
  21-31-13 Landing Field Elevation (LFE) Indication on EICAS
  
  21-32-01 Positive Pressure Relief Valve (Including Static Port and Tubing)
  
  21-32-04 Negative Pressure Relief Valve
  
  21-32-14 Positive Pressure Relief Valve Indication on MFD
  
  21-51-00 Air Conditioning Packs
  
  21-51-01 Pack Flow Control Valves
  
  21-51-02 Flow Sensing Venturis
  
  21-51-08 Water Spray Nozzles
  
  21-61-00 Cockpit Zone Temperature Control on Air Conditioning/Pneumatic Panel (Cockpit Temperature “SET” Indication on MFD ECS Page)
  
  21-61-01 Cockpit Zone Temperature Sensor (Cockpit Temperature “ACTUAL” Indication on MFD ECS Page)
  
  21-62-00 Passenger Cabin Zone Temperature Control (Passenger Cabin Temperature “SET” Indication on MFD ECS Page)
  
  21-62-01 Passenger Cabin Zone Temperature Sensors (Passenger Cabin Temperature “ACTUAL” Indication on MFD ECS Page)
  
  21-62-05 Trim Air Modulating Valves
  

Training Only