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  1. 08-07-2010, 11:08 AM #1
    james.waite's Avatar
    james.waite
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    McQuay chiller

    Hi,
    I am currently investigating a series of failures associated with McQuays chillers (ALS D 229 2XEXN), The equipment has had a series of failed Screw compressors.
    The failures have all been associated with a break down of the insulation of the compressor windings.
    Points that I currently believe could be instrumental,
    1) The presents of acid in the refrigerant system.
    2) The failure of the Star delta interlock timer
    3) The condition of the electrical supply
    If anybody has had experience of this type of failure with McQuays chiller /Screw compressors I would be interested to have your input.
    Thank you for your time.
    Last edited by james.waite; 02-08-2010 at 01:46 PM.
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