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  2. Smoke exhaust ductwork - Wikipedia

    en.wikipedia.org/wiki/Smoke_exhaust_ductwork

    Smoke exhaust ductwork, in Europe, is typically protected via passive fire protection means, subject to fire testing (typically to NBN EN 1366-8 [1]) and listing and approval use and compliance.

  3. Pressurisation ductwork - Wikipedia

    en.wikipedia.org/wiki/Pressurisation_ductwork

    There are two means of providing fire-resistance rated ductwork: Inherently fire-resistant, or proprietary factory assembled ducts which are made of sheet metal shells filled with mixtures of rockwool, fiber and silicon dioxide

  4. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    Groups of DDC controllers, networked or not, form a layer of systems themselves. This "subsystem" is vital to the performance and basic operation of the overall HVAC system. The DDC system is the "brain" of the HVAC system. It dictates the position of every damper and valve in a system.

  5. Constant air volume - Wikipedia

    en.wikipedia.org/wiki/Constant_air_volume

    Constant air volume (CAV) is a type of heating, ventilating, and air-conditioning system.In a simple CAV system, the supply air flow rate is constant, but the supply air temperature is varied to meet the thermal loads of a space.

  6. Yaw damper - Wikipedia

    en.wikipedia.org/wiki/Yaw_damper

    The yaw damper is typically disengaged at ground level and turned on shortly after takeoff; an active yaw damper during the takeoff run could potentially mask serious issues such as engine failure. [ 2 ] [ 1 ] Equally, the system is commonly disengaged prior to landing, as it could inhibit the control authority to the pilot at the critical ...

  7. Steering damper - Wikipedia

    en.wikipedia.org/wiki/Steering_damper

    The steering damper or steering stabiliser is a damping device designed to inhibit an undesirable, uncontrolled movement or oscillation of a vehicle steering ...

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