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Accommodates

Shaft size that will fit in the actuator.

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Adjustable Height

Height that the circulator pedestals will adjust to.

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Agency Compliance

3rd party certifications that the product meets.

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Ambient Temp

Temperature range that the damper actuators can withstand and still be fully operation.

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Application

Applications/uses for a particular fan or ventilator.

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Assembled

Describes whether or not the drive package is assembled when the ventilator ships.

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Axle Type

Type of axle that is utilized on the control and manual balancing dampers.

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Base Diameter

Base diameter on the closed base circulator pedestals.

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Base Height

Height of the curb cap on power roof ventilators.

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Bearing Type

Style of bearings that are utilized on a ventilator or a motor.

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Blade Gauge

Material thickness of the blades on a particular damper.

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Body Diameter

Diameter of the motor body.

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Bottom Flange Height

Flange height on the curb adapter where the adapter mounts to the existing roof curb.

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Building Type

Common building types where a ventilator can be applied.

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Burner Control Circuit

Voltage of the circuit for the control transformer on the make up air units.

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Burner Material

Type of material the burner is constructed of on the make up air units.

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Category Description

Highest level of categorization on the product tree.

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CFM

CFM (Cubic Feet per Minute) - It is a measure of volume flow rate, or air moving capability, of an air moving device. Volume of air moved per minute.

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Construction

Type of material a particular product is constructed out of.

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Curb Cap Size

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

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Curb Side Square O.D.

Outside dimension of the curb adpater that fits over the exisiting roof curb.

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Curb Type

Type of curb (i.e. - Fixed, Adjustable, Ventilated, Non-Ventilated).

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Damper Diameter

The "ACTUAL" damper diameter. Dampers are undersized to allow them to be mounted into the duct work/wall opening.

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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.

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Depth

Maximum depth of a product.

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Door Width x Door Height

The 'ACTUAL' door width and height of the access doors.

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Drive Package Description

Describes whether the drive package on a particular ventilator is assembled, shipped loose, or must be provided by the customer.

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Drive Type

Transmission type of the ventilator (belt drive or direct drive).

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Duct Diameter

Size of the duct that a round damper will fit into.

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Duct Opening Width x Duct Opening Height

The size of the opening (width x height) that must be cut in the duct in order for the access door to be installed properly.

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Duct Width x Duct Height

The 'NOMINAL' size (width x height) of the duct where a damper will be mounted.

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Duty

The amount of time a motor is capable of operating under full load.

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Electrical Connections

The type of electrical connections that are supplied with Dayton actuators.

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Fan Curve Image Path

Links the fan curve with the corresponding model.

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Fan Side Square O.D.

Outside dimension of the curb adpater where the fan base slips over.

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Finish

Type of coating that is utilized on a particular product.

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Fits

This refers to the size of the speed control.

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Fits Fan Base Size (sq)

Describes what size base dimension a roof curb will fit.

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Flashing Flange

Portion of the curb that mounts to the roof deck.

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For Fan Diameter

The diameter of the propeller that the accessory is compatible with.

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For Use With

Describes the fans or ventilators a particular accessory can be used with.

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For Wheel Diameter

Describes the diameter of the wheel that the accessory is compatible with.

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Frame Gauge

Material thickness of the frame on a particular damper.

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Frame Material

Construction material of the frame of a given product.

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Frame Width x Frame Height

The 'ACTUAL' frame size (width x height) of a particular damper.

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Free Area

The entire area of the opening that is used for air passage. Measured in square feet.

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Full Load Amps

The amount of current the motor can be expected to draw under full load (torque) conditions

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Fusible Link Temperature

In the event of a fire, the temperature that must be reached in order for the fusible link to separate, causing the damper to close.

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Gas Inlet

Dimension of the gas inlet on the make up air units.

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Gas Type

Type of gas the make up air heaters utilize.

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Guard Diameter

Overall diameter of the guard on the circulator products.

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Height

The height of a given product.

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Hertz (Cycle)

Measure of the frequency or cycles per second.

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Horsepower

The power required to drive an air moving device. Horsepower required varies with system conditions.

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Housing Material

Type of material the housing of a ventilator is constructed of.

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Ignition System

Ignition system type utilized on the make up air units.

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Image Path

Links an image to the corresponding product category.

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Impeller Diameter

Dimension of the impeller (propeller or wheel) in inches. The nominal dimension is used on the "Narrow Your Results" on the site. The "Typical" dimension refers to the actual size of the impeller and is used in the X-Ref. database.

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Impeller Material

Type of material the impeller of a fan or ventilator is constructed of.

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Impeller Type

Style of impeller that is utilized on a product (i.e. Centrifugal or Axial).

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Includes

Describes items that a particular product includes such as mounting hardware, etc.

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Inlet Width x Inlet Height

Describes the size (width x height) of the opening where air is drawn into a ventilator.

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Input

Describes the input of the make up air units measured in BtuH.

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Inside Sq. Dimension

The inside dimension of a roof curb. Min/Max are necessary to capture for the adjustable roof curbs.

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Insulation

Thickness of the insulation utilized on access doors.

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Lead Type

Describes the type of wire leads utilized on a given motor.

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Length

Describes the length of a given product.

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Linkage

Describes where the mechanical device that joins the damper blades together is located.

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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.

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Max Intake CFM/Throat Velocity

The Maximum CFM and Velocity that is recommended for the gravity ventilators in an intake application. Exceeding this will cause moisture to enter the building.

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Max Temp

The maximum air temperature that a fan or ventilator can withstand while in operation, without compromising the life of the unit.

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Max Velocity

The recommended maximum speed at which air should pass through an HVAC opening.

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Max. Amps

The maximum amperage that a motor for a given fan or ventilator will draw while in operation.

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Max. Operating Amps

The maximum amperage that a given fan or ventilator will draw while in operation.

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Max. Operating Watts

The maximum wattage that a given fan or ventilator will draw while in operation.

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Max. Wattage

The maximum wattage that a motor for a given fan or ventilator will draw while in operation.

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Motor Enclosure

The housing or frame of the motor.

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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 20,000 hours (A = 105ºC, B = 135ºC, F =

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Motor 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.

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Motor Type

Describes the type of motor (i.e. Capacitor-Start, Split Phase, etc.)

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Mounting

This describes the way a motor can be mounted.

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Mounting Holes O.C. (In.)

Describes the "on center" distance of the mounting holes for a guard set.

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Mounting Location

Refers to the location where a fan or ventilator can be mounted.

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Mounting Position

Refers to the orientation in which a product can be mounted.

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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.

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Nominal Frame Size (in.)

This refers to the 'NOMINAL' size of the frame on the access doors.

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Number of Blades

The number of blades an axial product has.

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Outlet Width x Outlet Height

This dimension refers to the size of the discharge (where air leaves the ventilator) on a particular unit.

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Output

This refers to the heating capacity of the make up air units measured in BtuH.

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Outside Sq. Dimension

Outside dimension of a roof curb. Min/Max are necessary to capture for the adjustable roof curbs.

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Overall Diameter

Describes the diameter at the widest point for a given product.

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Power Consumption

Describes the amount of power, measured in amps. that a given damper actuator will draw when in operation.

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Pressure Differential Max

Describes the maximum static pressure that a given damper can withstand and still be fully operational in an HVAC system.

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Product Drawing

This links the product drawing to it's corresponding item number. 7 Combos utilize the LMD model product drawing.

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Recommended Aluminum Shutter

This refers to the Dayton Aluminum Shutter that can be purchased as an accessory to a particular sidewall propeller fan.

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Recommended Fiberglass Shutter

This refers to the Dayton Fiberglass Shutter that can be purchased as an accessory to a particular sidewall propeller fan.

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Recommended Galvanized Shutter

This refers to the Dayton Galvanized Shutter that can be purchased as an accessory to a particular sidewall propeller fan.

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Recommended Retaining Angle

This refers to the corresponding retaining angle that can be ordered as an accessory to the damper.

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Required Accessory

Describes what accessory(s) must be purchased in addition to make the product fully functional.

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Required For

Describes the agency or 3rd party that requires a specific accessory in order to meet a standard.

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Resilient Ring Diameter

Describes the diameter of the resilient ring on a given motor.

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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.

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Rotation

Describes the rotation direction of a given motor.

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RPM

The number of times per minute the shaft of the motor (machine) rotates. This is a function of design and the power supply.

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RPM Range

Range of the number of times per minute the shaft of the motor (machine) rotates. This is a function of design and the power supply.

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Seals

The type of seals that are utilized on a damper blade to minimize leakage.

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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

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Shaft Diameter

Describes the diameter of the shaft on a given fan, ventilator or motor.

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Shaft Length

Describes the length of the shaft on a given motor.

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Shaft Orientation

Describes the orientation that the motor shaft must be positioned at in order for the motor to operate at maximum efficiency.

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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.)

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Standards

The building code standards that a given damper is in compliance with.

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Stroke Degree

Describes the degree of rotation of a given damper actuator.

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Stud Diameter

Describes the diameter of the mounting studs on a given motor.

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Stud Pattern

Describes the mounting stud pattern for a given motor.

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Thermal Efficiency

The percent of heat input that is converted to net work output; used as a measure of performance for a heat engine.

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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.

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Timing

Describes the time, in seconds, it takes the damper actuator to fully open or close the damper blades.

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Top Flange Height

The flange height on the curb adapter where the fan base mounts.

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Torque

The measure of the force applied to an object to produce rotational motion, usually measured in foot-pounds.

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Turn Down Ratio

The turn down ratio that the burners are capable of on a make up air heater.

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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 10% al

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Warranty Length

The length of time a product can be returned/repaired as covered under the warranty.

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Width

Describes the width of a given product.

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Wire Spacing

This refers to the distance between the wires on a birdscreen.

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