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    Centrifugal Upblast Exhaust Fan, Product # CUBE-240-LMD134GQD, 2639-8431 CFM

    Centrifugal Upblast Exhaust Fan, Product # CUBE-240-LMD134GQD, 2639-8431 CFM

    • 34 x 34 inch base with prepunched mounting holes for easy attachment to roof curb
    • Multiple motor and drive options available to meet any performance and application need
    • 30.5 x 30.5 inch recommended roof opening
    • Shipping Type:
      Freight
    $2,256.60
    In stock 
    2 on Hand
    Free shipping
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    • 34 x 34 inch base with prepunched mounting holes for easy attachment to roof curb
    • Multiple motor and drive options available to meet any performance and application need
    • 30.5 x 30.5 inch recommended roof opening
    • Shipping Type:
      Freight

    Model CUBE is an aluminum exhaust fan specifically designed for roof or sidewall mounted applications where contaminated or grease laden exhaust air can be discharged directly upward, away from the roof or wall surface. The fans feature a one piece windband continuously welded to curb cap and double studded isolators for true vibration isolation. 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
    • One-piece aluminum windband with rolled bead provides extra rigidity
    • Cooling fins located on top of fan wheel draw outside air through a large breather tube directly into the motor compartment extending motor life
    • Windband is continually welded to the curb cap and drain trough for leakproof construction
    • Roof or wall mountable
    • Permanent embossed aluminum nameplate for exact model and serial number identification
    California Residents - Prop 65 Warning
    Specifications
    Base/Panel Length X Width
    34 x 34 in
    Curb Cap Size
    34 in
    Impeller Diameter
    24 3/4 in
    Roof Opening Width x Roof Opening Length
    30 1/2 x 30 1/2 in
    Base Height
    1 3/4 in
    Damper Width x Damper Height
    24 x 24 in
    Bearing Size
    1 in
    Height
    33 7/8 in
    Weight
    126 lbs
    Overall Diameter
    42 3/4 in
    Application
    Exhaust General and Clean Air
    Exhaust Grease-Laden Air
    High Wind
    Housing Material
    Spun Aluminum
    Drive Type
    Belt Drive
    Impeller Type
    Centrifugal Wheel
    Impeller Material
    Aluminum
    Includes
    Disconnect switch
    Certifications
    AMCA Sound & Air
    High Wind and Hurricane
    Seismic
    UL/cUL 762
    Drive Package Description
    No drive package included
    Required Accessory
    Roof curb for new roof installations
    Motor Included
    No
    Shipping Type
    Freight
    Warranty Length
    1 Year
    Performance
    CFM Range
    2639-8431
    FRPM Range
    410-930
    Ps (in. wg) 0 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1 1.25 1.5
    1/4 0.29 480 410 CFM 4352 3928 3370 2639 - - - - - - -
    Sones 8.2 7.4 6.8 6.4 - - - - - - -
    Bhp 0.26 0.28 0.29 0.27 - - - - - - -
    1/3 0.21 430 410 CFM 3898 3389 2742 - - - - - - - -
    Sones 6.9 6.3 5.8 - - - - - - - -
    Bhp 0.18 0.2 0.21 - - - - - - - -
    1/3 0.39 530 430 CFM 4805 4436 3938 3403 - - - - - - -
    Sones 9.6 8.8 8 7.5 - - - - - - -
    Bhp 0.34 0.37 0.39 0.39 - - - - - - -
    1/2 0.31 490 410 CFM 4442 4034 3491 2859 - - - - - - -
    Sones 8.4 7.7 7 6.6 - - - - - - -
    Bhp 0.27 0.29 0.31 0.3 - - - - - - -
    1/2 0.59 610 490 CFM 5530 5198 4814 4388 3902 3156 - - - - -
    Sones 12.3 11.4 10.7 9.9 9.3 8.8 - - - - -
    Bhp 0.52 0.56 0.58 0.59 0.59 0.55 - - - - -
    3/4 0.46 560 480 CFM 5077 4723 4265 3787 3181 - - - - - -
    Sones 10.7 9.7 8.8 8.3 7.8 - - - - - -
    Bhp 0.41 0.44 0.45 0.46 0.44 - - - - - -
    3/4 0.86 690 560 CFM 6255 5950 5673 5269 4901 4469 3991 - - - -
    Sones 15.2 14.3 13.9 13.4 12.6 11.9 11.4 - - - -
    Bhp 0.76 0.81 0.82 0.85 0.86 0.86 0.83 - - - -
    1 1.15 760 610 CFM 6890 6603 6373 6037 5684 5342 4951 4526 3555 - -
    Sones 17.8 17 16.7 16.4 16 15.1 14.5 14 13.6 - -
    Bhp 1.01 1.07 1.09 1.12 1.14 1.15 1.14 1.12 1 - -
    1 1/2 0.9 700 600 CFM 6346 6044 5779 5377 5018 4601 4141 - - - -
    Sones 15.5 14.7 14.3 13.8 13.1 12.4 11.8 - - - -
    Bhp 0.79 0.84 0.86 0.88 0.89 0.9 0.88 - - - -
    1 1/2 1.72 870 700 CFM 7887 7634 7420 7211 6888 6577 6288 5965 5616 4670 -
    Sones 21 20 19.9 19.5 18.9 18.1 17.6 17 16.6 16.1 -
    Bhp 1.52 1.59 1.62 1.65 1.68 1.7 1.71 1.72 1.71 1.62 -
    2 1.1 750 690 CFM 6799 6510 6277 5928 5575 5221 4818 4388 - - -
    Sones 17.5 16.7 16.4 16.1 15.6 14.7 14.1 13.6 - - -
    Bhp 0.97 1.03 1.05 1.07 1.09 1.1 1.1 1.07 - - -
    2 2.1 930 750 CFM 8431 8194 7985 7798 7536 7233 6953 6683 6375 5706 4324
    Sones 24 23 23 23 22 21 20 19.6 19 18.2 18
    Bhp 1.86 1.93 1.98 2 2.03 2.06 2.08 2.1 2.1 2.07 1.83
    1/4 1/3 1/3 1/2 1/2 3/4 3/4 1 1 1/2 1 1/2 2 2
    0.29 0.21 0.39 0.31 0.59 0.46 0.86 1.15 0.9 1.72 1.1 2.1
    480 430 530 490 610 560 690 760 700 870 750 930
    410 410 430 410 490 480 560 610 600 700 690 750
    Ps (in. wg) CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp CFM Sones Bhp
    0 4352 8.2 0.26 3898 6.9 0.18 4805 9.6 0.34 4442 8.4 0.27 5530 12.3 0.52 5077 10.7 0.41 6255 15.2 0.76 6890 17.8 1.01 6346 15.5 0.79 7887 21 1.52 6799 17.5 0.97 8431 24 1.86
    0.125 3928 7.4 0.28 3389 6.3 0.2 4436 8.8 0.37 4034 7.7 0.29 5198 11.4 0.56 4723 9.7 0.44 5950 14.3 0.81 6603 17 1.07 6044 14.7 0.84 7634 20 1.59 6510 16.7 1.03 8194 23 1.93
    0.25 3370 6.8 0.29 2742 5.8 0.21 3938 8 0.39 3491 7 0.31 4814 10.7 0.58 4265 8.8 0.45 5673 13.9 0.82 6373 16.7 1.09 5779 14.3 0.86 7420 19.9 1.62 6277 16.4 1.05 7985 23 1.98
    0.375 2639 6.4 0.27 - - - 3403 7.5 0.39 2859 6.6 0.3 4388 9.9 0.59 3787 8.3 0.46 5269 13.4 0.85 6037 16.4 1.12 5377 13.8 0.88 7211 19.5 1.65 5928 16.1 1.07 7798 23 2
    0.5 - - - - - - - - - - - - 3902 9.3 0.59 3181 7.8 0.44 4901 12.6 0.86 5684 16 1.14 5018 13.1 0.89 6888 18.9 1.68 5575 15.6 1.09 7536 22 2.03
    0.625 - - - - - - - - - - - - 3156 8.8 0.55 - - - 4469 11.9 0.86 5342 15.1 1.15 4601 12.4 0.9 6577 18.1 1.7 5221 14.7 1.1 7233 21 2.06
    0.75 - - - - - - - - - - - - - - - - - - 3991 11.4 0.83 4951 14.5 1.14 4141 11.8 0.88 6288 17.6 1.71 4818 14.1 1.1 6953 20 2.08
    0.875 - - - - - - - - - - - - - - - - - - - - - 4526 14 1.12 - - - 5965 17 1.72 4388 13.6 1.07 6683 19.6 2.1
    1 - - - - - - - - - - - - - - - - - - - - - 3555 13.6 1 - - - 5616 16.6 1.71 - - - 6375 19 2.1
    1.25 - - - - - - - - - - - - - - - - - - - - - - - - - - - 4670 16.1 1.62 - - - 5706 18.2 2.07
    1.5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4324 18 1.83
    • 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 do not include the effects of appurtenances (accessories).
    • 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

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    Centering a wheel on a spun aluminum rooftop exhaust fan

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