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Centrifugal Downblast Exhaust Fan, Product # GB-140-4122XQD, 1085-1595 CFM

$1,446.00

Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.

  • 22 x 22 inch base with prepunched mounting holes for easy attachment to roof curb
  • Variable pitch adjustable motor pulley to optimize fan performance
  • 18.5 x 18.5 inch recommended roof opening
SKU: GB-140-4122XQD
Ships From: Greenheck

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Available In: 5-7 Business Days
Dimensions
Base/Panel Length X Width
Square base dimension on power roof ventilators. Square fan panel dimension on sidewall propeller fans.

22 x 22 in

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

22 in

Impeller Diameter
Dimension of the impeller (propeller or wheel) in inches.

14 3/4 in

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.

18 1/2 x 18 1/2 in

Base Height
Height of the curb cap on power roof ventilators.

1 3/4 in

Base Top to Shroud Top
Dimension from the top of the base to the top of the shroud on a downblast exhaust ventilator.

23 3/4 in

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.

16 x 16 in

Bearing Size
Bore size on the bearings utilized on a ventilator.

3/4 in

Height
The height of a given product.

23 3/4 in

Weight
Weight

64 lbs

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

28 3/8 in

Performance
CFM Range
CFM Range

1085-1595

FRPM Range
FRPM Range

673-860

Application
Application
Applications/uses for a particular fan or ventilator.

Exhaust General and Clean Air

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

Roof

Construction Features
Drive Type
Transmission type of the ventilator (belt drive or direct drive).

Belt Drive

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

Centrifugal Wheel

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

Aluminum

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

Spun Aluminum

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

Assembled drive package

Disconnect switch

Assembled drive package

Disconnect switch

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.

180 °F

Certifications
Certifications

AMCA Sound & Air

High Wind and Hurricane

Seismic

UL/cUL 705

AMCA Sound & Air

High Wind and Hurricane

Seismic

UL/cUL 705

AMCA Sound & Air

High Wind and Hurricane

Seismic

UL/cUL 705

AMCA Sound & Air

High Wind and Hurricane

Seismic

UL/cUL 705

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

Motor and drives assembled

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

Roof curb for new installations

General
Unit of Measure
Unit of Measure

ea

Warranty Length
Warranty Length

1 Year

Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life. Ideal for new installations or for retrofit, replacement applications. Curb adapters and reducers available to eliminate the need to field fabricate transitions when there is an existing roof curb.

  • Centrifugal wheel provides high-efficiency and minimal sound
  • True vibration isolation supports the motor and wheel for long life and quiet operation
  • One-piece aluminum curb cap provides a weather-tight fit
  • Galvanized birdscreen protects the fan discharge from birds and small objects
  • Fully rolled windband bead for increased stability and easy transport
  • Positive motor cooling with fresh air results in maximum motor life
  • Permanent embossed aluminum nameplate for exact model and serial number identification

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