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PART2 - PRODUCTS <br /> 2 .01 VARIABLE FREQUENCY DRIVE <br /> A . General <br /> 1 . The Contractor shall provide integrated , all solid state , microprocessor controlled, pulse <br /> width modulated , variable frequency drive (VFD ) speed control systems for the control <br /> of pumping units and motors, in response to automatic or manual control input signals , in <br /> accordance with the Contract Documents . <br /> 2 . The variable frequency drive (VFD) unit shall be integrated, all solid state systems <br /> designed to operate at 460 volt A .C . , three-phase, 60 Hz. in an outdoor environment. The <br /> variable speed control systems shall be supplied to control the speed of any standard <br /> NEMA Design B squirrel cage induction motor with 1 . 15 service factor derated to 1 .0 <br /> and without requiring motor modifications . The Contractor shall provide the actual pump <br /> motor data to the VFD Supplier who shall furnish the size and type of VFD required for <br /> the specific application . <br /> 3 . The drive shall be of first class workmanship and shall be entirely designed and suitable <br /> for the intended services . All materials used in fabricating the equipment shall be new <br /> and undamaged. <br /> 4. The VFD shall be manufactured in accordance with all applicable NEMA and NFPA 70 <br /> i requirements. <br /> 5 . The complete VFD system shall be U.L. listed in accordance with U.L. Spec 508C, <br /> B . Manufacturers <br /> J <br /> 1 . The VFD supplied under this Section shall be the product of a single Manufacturer. <br /> 2 . VFD systems must not be fabricated in whole or part by parties other than the VFD <br /> manufacturer. Package modification to a Manufacturer's standard product will not be <br /> allowed by outside parties . <br /> 3 . Manufacturers shall have a minimum of 10 years experience specializing in the design <br /> 1 and manufacturing of PWM variable frequency drives . <br /> 4 . Manufacturers shall have maintained factory trained and authorized service facilities <br /> within 100 miles of the project and have a demonstrated record of service for at least the <br /> previous three years. Full-time support personnel shall be employed by the manufacturer. <br /> 5 . Manufacturers shall be certified to LSO-9001 Series of Quality Standards with drive <br /> products manufactured in an ISO certified facility to assure all quality and corrective <br /> 1 action procedures have been adhered to. <br /> I 6. Subject to compliance with all of the requirements, provide variable frequency drives of <br /> the following Manufacturer: Square-D . No other Manufacturer's are approved. <br /> 1 <br /> 044572017 <br /> 16483-3 <br />