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    kiruthi's Avatar
    kiruthi Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 25, 2006, 08:51 AM
    Air Conditioning Maintenance
    Dear Forum,

    How do I get to remove fine cement dust, caked on evaporator coil, off the coils - without damagingthe fins - in order to improve heat exchange.

    My air conditioner is located in a cement production environment. During its operation, cement dust settles on the coils and starts to cure immediately. I have tried cautic soda but this seems to make it even harder.

    Thanks
    Kiruthi
    rickdb1's Avatar
    rickdb1 Posts: 185, Reputation: 15
    Junior Member
    		  
    #2

    Sep 25, 2006, 08:58 AM
    Head to nearest HVAC supply house and tell them you want some foaming coil cleaner for the condensing unit. There is a difference in cleaners used for the condenser(Outdoor unit) and the indoor coil, so make sure you get the correct one...
    jgj6331's Avatar
    jgj6331 Posts: 153, Reputation: 19
    Junior Member
    		  
    #3

    Sep 25, 2006, 07:32 PM
    Is this your home? Business? First off, if there is enough cement dust floating around to solidify in your AC - you have a potentially serious health hazard. Cement is caustic and can irritate the nose and airways. Long term exposure to cement containing silica (sand) can lead to silicosis - an irreversible scarring of the lungs that can ultimately be fatal. You and our family (if applicable) need to be out of this environment ASAP. See this link:
    http://www.osha.gov/SLTC/constructio...te/index.html..
    Secondly, good luck in getting solidified cement out of your coil - nothing short of dynamite will remove it.
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