If there is white and black terminal then use black for hot lead (smaller one in the receptacle) and white for neutral. There is no positive & negative it's alternating current.
If it's not marked then it don't matter witch way it goes.
You can always check iwaki web.
http://www.iwakiwalchem.com/nav/cm.aspx?cmid=35
__________________
Denis
150g SPS reef;3x250WHQI,Tunze Streams,Wavebox,Neptune Apex,fishroom in basement  ,reefing since 93,SPS since 99.
TOTM June 2010
Last edited by Denis; 07-29-2006 at 03:02 AM.
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