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    Centrifugal Downblast Exhaust Fan, Product # GB-130-5119X3QD-DR4, 1091-1959 CFM

    Centrifugal Downblast Exhaust Fan, Product # GB-130-5119X3QD-DR4, 1091-1959 CFM

    • 19 x 19 inch base with prepunched mounting holes for easy attachment to roof curb
    • Variable pitch adjustable motor pulley to optimize fan performance
    • 14.5 x 14.5 inch recommended roof opening
    • Shipping Type:
      Freight
    $1,226.58
    In stock 
    Free shipping
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    • 19 x 19 inch base with prepunched mounting holes for easy attachment to roof curb
    • Variable pitch adjustable motor pulley to optimize fan performance
    • 14.5 x 14.5 inch recommended roof opening
    • Shipping Type:
      Freight

    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 maximm motor life
    • Permanent embossed aluminum nameplate for exact model and serial number identification
    • Suitable for High Wind applications
    • Motor, belt and pulleys shipped loose for field assembly
    California Residents - Prop 65 Warning
    Specifications
    Base/Panel Length X Width
    19 x 19 in
    Curb Cap Size
    19 in
    Impeller Diameter
    13 1/2 in
    Roof Opening Width x Roof Opening Length
    14 1/2 x 14 1/2 in
    Base Height
    1 3/4 in
    Base Top to Shroud Top
    23 3/4 in
    Damper Width x Damper Height
    12 x 12 in
    Bearing Size
    3/4 in
    Height
    23 3/4 in
    Weight
    67 lbs
    Overall Diameter
    28 3/8 in
    Application
    Exhaust General and Clean Air
    High Wind
    Housing Material
    Spun Aluminum
    Drive Type
    Belt Drive
    Impeller Type
    Centrifugal Wheel
    Impeller Material
    Aluminum
    Includes
    Unassembled drive package
    Certifications
    AMCA Sound & Air
    High Wind and Hurricane
    Seismic
    UL/cUL 705
    Drive Package Description
    Motor and drives shipped loose
    Required Accessory
    Roof curb for new installations
    Motor Insulation
    F
    Motor Phase
    3
    Service Factor
    1.25
    Voltage
    208-230/460
    HP
    1/2
    Hertz
    60
    Motor Enclosure
    Open Drip Proof
    RPM
    1800
    Thermal Protection
    No
    Nominal Efficiency
    78.2
    NEMA Frame Size
    56
    Shipping Type
    Freight
    Warranty Length
    1 Year
    Performance
    CFM Range
    1091-1959
    FRPM Range
    1110-1380
    Ps (in. wg) 0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1
    1/2 0.31 1380 1110 CFM 1959 1890 1819 1743 1657 1561 1448 1305 1091
    Sones 14.2 14 13.8 13.5 13 12.5 12.1 11.7 11
    Bhp 0.26 0.27 0.28 0.29 0.3 0.3 0.31 0.3 0.29
    1/2
    0.31
    1380
    1110
    Ps (in. wg) CFM Sones Bhp
    0 1959 14.2 0.26
    0.125 1890 14 0.27
    0.25 1819 13.8 0.28
    0.375 1743 13.5 0.29
    0.5 1657 13 0.3
    0.625 1561 12.5 0.3
    0.75 1448 12.1 0.31
    0.875 1305 11.7 0.3
    1 1091 11 0.29
    • Greenheck Fan Corporation certifies that the model shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.
    • Performance certified is for installation type A: Free inlet, Free outlet.
    • Power rating (BHP/kW) includes transmission losses.
    • Performance ratings include the effects of birdscreen.
    • The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: free inlet hemispherical sone levels.
    Documents
    Videos

    Common methods for tensioning a rooftop exhaust fan belt

    Centering a wheel on a spun aluminum rooftop exhaust fan

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