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  1. #1
    Join Date
    Nov 2005
    Location
    Chicago
    Posts
    219

    Exhaust Hood Motor Replacement

    I have a bad motor (bearings) it's a model 5KCR48WN0273BX. It is a 115 volt reversible rotation, 1725 RPM 1.5 HP, used in a cooking exhaust ventilator. I found a motor theat I would like to use but am concered if it may overheat. I believe the old one is open drip and the new replacement is a farm duty enclosed. Here are the specs on the new motor
    1½ HP, 1725RPM, Frame 56H, 115/230 volts , 60hz., 17.2/8.6 amps, Single Phase, Total Enclosed Fan Cooled (TEFC), Capacitor Start.
    Rigid Base Mount. Mounting holes are basically 3"x5" on center. Plate has 6 mounting holes, 2nd set are 5" down side on center (5"x5")
    5/8"diameter keyed shaft x 1 7/8" Long.
    Motor is electrically reversible
    Service Factor = 1.0, 40° C Ambient Temperature, Large junction box
    Manual Overload Protection (Blue reset button)
    Overall motor length with shaft = 12.61"
    Class F Insulation
    UL/CSA Approved
    You guys think this will work?
    The Difference between Genuis and Stupidity is Genuis has it's limitations.
    Chicago Furnace Repair

  2. #2
    Join Date
    Feb 2009
    Location
    South Carolina
    Posts
    8
    in this situation where the motor is going to be exposed to a good deal of heat, i would not use the enclosed motor; i would get a replacement open dip proof motor. the enclosed motor would work, but it have a shorter run life than the open motor because the open motor will operate cooler than the enclosed motor.

  3. #3
    Join Date
    Nov 2005
    Location
    Chicago
    Posts
    219
    Is (open drip) noramlly used in ventilators for cooking (grease type hood)?
    The Difference between Genuis and Stupidity is Genuis has it's limitations.
    Chicago Furnace Repair

  4. #4
    Join Date
    Feb 2009
    Location
    South Carolina
    Posts
    8
    Quote Originally Posted by cfcitywide View Post
    Is (open drip) noramlly used in ventilators for cooking (grease type hood)?
    yes.

  5. #5
    Join Date
    Nov 2005
    Location
    Chicago
    Posts
    219
    Thanks Brown. the motor I pulled out is enclosed with the fan on the end of the motor for cooling. Maybe it's not OEM? or perhaps the cooling blade is all it needs to keep it cool? In any event the motor I was looking at did not have a blade on the end for cooling. Too bad could of made a few hundred more on the replacement... thanks again Brown.
    The Difference between Genuis and Stupidity is Genuis has it's limitations.
    Chicago Furnace Repair

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