name: Reactor Compartment Ventilation System
abbrev: RCV
safety class: II
functions:
  - Controlling radioactive gaseous release to the environment
    during both normal and emergency (post-LOCA) operation and
    maintenance of a low level of airborne radioactivity in
    the reactor compartment and auxiliary spaces to permit
    entry during normal operation or during both schedule and
    unscheduled shutdown.
  - Removing heat to the environment from sources within the reactor
    compartment
  - Containment purging prior to manned entry for maintenance and/or
    inspection. Containment purging would be accomplished only when
    the reactor is at or below hot shutdown conditions; i.e. decay heat
    system is operating.
  - Provide a source of clean air to the control areas if high
    radioactivity levels are present off ship.