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P-720.3 Air Conditioning and Refrigeration
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All new and/or replacement air conditioning and refrigerating systems for public use having units rated in excess of five tons refrigerating capacity per 24 hours and using the public water supply, shall be equipped with a recapture system using evaporating condensers, cooling towers, spray ponds, or other water cooling equipment. Make-up water shall not be in excess of two-tenths gallons per rated ton of refrigerated capacity. No other method of recapture or re-use of cooling water may be employed without the approval of the Water Department and the Department of Licenses and Inspections.
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