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    Glosario

    ¡Una lista de términos y definiciones para incrementar su vocabulario en la industria del Aire Acondicionado!

    Glosario

    ¡Una lista de términos y definiciones para incrementar su vocabulario en la industria del Aire Acondicionado!

    A

    Air Velocity (FPM) At 20 ft
    Speed of the air being moved by the air circulator at a distance of 2 feet from the fan.
    Air Velocity (FPM) At 40 ft
    Speed of the air being moved by the air circulator at a distance of 4 feet from the fan.
    Air Velocity (FPM) At 60 ft
    Speed of the air being moved by the air circulator at a distance of 6 feet from the fan.
    Application
    Applications/uses for a particular fan or ventilator.

    B

    Base Height
    Height of the curb cap on power roof ventilators.
    Base Top To Shroud
    Distance between the top of the curb cap to where the shroud begins on downblast power roof ventilators.
    Base Top to Shroud Top
    Dimension from the top of the base to the top of the shroud on a downblast exhaust ventilator.
    Base/Panel Length X Width
    Square base dimension on power roof ventilators. Square fan panel dimension on sidewall propeller fans.
    Bearing Size
    Bore size on the bearings utilized on a ventilator.
    Bearing Type
    Style of bearings that are utilized on a ventilator or a motor.
    Blade Gauge
    Material thickness of the blades on a particular damper.
    Blade Material
    Construction material of the blades on a product.

    C

    Curb Cap Size
    Square base dimension on power roof ventilators.Tells you what size roof curb is needed.

    D

    Damper Diameter
    The "ACTUAL" damper diameter. Dampers are undersized to allow them to be mounted into the duct work/wall opening.
    Damper Width x Damper Height
    The "ACTUAL" damper width and height. Dampers are undersized to allow them to be mounted into the duct work/wall opening.
    Depth
    Maximum depth of a product.
    Drive Package Description
    Describes whether the drive package on a particular ventilator is assembled, shipped loose, or must be provided by the customer.
    Drive Type
    Transmission type of the ventilator (belt drive or direct drive).

    F

    Flashing Flange
    Portion of the curb that mounts to the roof deck.
    For Use With
    Describes the fans or ventilators a particular accessory can be used with.
    Frame Gauge
    Material thickness of the frame on a particular damper.
    Frame Material
    Construction material of the frame of a given product.
    Free Area
    The entire area of the opening that is used for air passage. Measured in square feet.

    H

    Height
    The height of a given product.
    Hertz
    Measure of the frequency or cycles per second.
    Housing Material
    Type of material the housing of a ventilator is constructed of.
    HP
    The power required to drive an air moving device. Horsepower required varies with system conditions.

    I

    Impeller Diameter
    Dimension of the impeller (propeller or wheel) in inches.
    Impeller Material
    Type of material the impeller of a fan or ventilator is constructed of.
    Impeller Type
    Style of impeller that is utilized on a product (i.e. Centrifugal or Axial).
    Includes
    Describes items that a particular product includes such as mounting hardware, etc.
    Inlet Diameter
    The diameter of the opening of a fan where air is drawn in.
    Inlet Width x Height
    Describes the size (width x height) of the opening where air is drawn into a ventilator.
    Insulation
    Thickness of the insulation utilized on access doors.

    L

    Length
    Describes the length of a given product.

    M

    Max Inlet Temp
    The maximum entering air temperature that a fan or ventilator can withstand while in operation, without compromising the life of the unit.
    Max Velocity
    The recommended maximum speed at which air should pass through an HVAC opening.
    Max. Operating Amps
    The maximum amperage that a given fan or ventilator will draw while in operation.
    Motor Enclosure
    The housing or frame of the motor.
    Motor Insulation
    The class of motor insulation for a given motor. The temperature capabilities of each insulation class is defined as being the maximum temperature at which the insulation can be operated to yield an average life of 2, hours (A = 15?C, B = 135?C, F =
    Mounting
    This describes the way a motor can be mounted.
    Mounting Location
    Refers to the location where a fan or ventilator can be mounted.
    Mounting Position
    Refers to the orientation in which a product can be mounted.

    N

    NEMA Frame Size
    Refers to a set of physical dimensions of motors as established by NEMA (National Electrical Manufacturers Association). These dimensions include critical mounting dimensions.

    O

    Outlet Diameter
    This dimension describes the discharge diameter of a given product.
    Outlet Width x Height
    This dimension refers to the size of the discharge (where air leaves the ventilator) on a particular unit.
    Overall Diameter
    Describes the diameter at the widest point for a given product.

    P

    Phase
    Indicates the space relationships of windings and changing values of the recurring cycles of AC voltages and currents. The most common power supplies are either single- or three-phase.
    Pressure Differential Max
    Describes the maximum static pressure that a given damper can withstand and still be fully operational in an HVAC system.

    R

    Required Accessory
    Describes what accessory(s) must be purchased in addition to make the product fully functional.
    Roof Opening Width x Roof Opening Length
    Describes the size (width x lenght) of the roof opening that is required in order to properly install a given fan or ventilator.
    RPM
    The number of times per minute the shaft of the motor (machine) rotates. This is a function of design and the power supply.

    S

    Service Factor
    A safety factor to be used when the load temporarily exceeds the nominal horse power rating of a given motor. When used on a motor nameplate, a number which indicates how much above the nameplate rating a motor can be loaded without causing serious degrad
    Speed Controllable
    Describes whether a fan or ventilator can be used with a solid state speed control. (NOTE: A speed control cannot be used with any belt-drive fan or ventilator.)

    T

    Thermal Protection
    This is a feature which protects the motor from overheating and thus prolongs service life of the machine. In the event that the motor approaches overheating the thermal protection cuts power and only returns it after a cooling period.

    V

    Voltage
    The force that causes a current to flow in an electrical circuit. The voltage of a motor is usually determined by the supply to which it is attached. NEMA requires that motor be able to carry its rated horsepower at nameplate voltage plus or minus 1% al

    W

    Width
    Describes the width of a given product.