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JOHN JAY COLLEGE- NY, NY
This project is a school cafeteria and was a redesign after it was determined that plumbing capabilities were not available on the roof where a precipitator was to have gone. Having to go to a non-wash, manually-serviced precipitator steered us towards the KES, which is designed for easy service. The original CFM was 4000 with a standard hood. This was changed to a Rev-low hood for grease-generating cooking. The revised CFM was 2500 providing acceptable filtration efficiency for the precipitator. Since the REV-Low is a dry extractor, we anticipate less frequent cleaning of the cells, perhaps once a month.
COST SAVINGS
INITIAL- for the cost of the initial 4000 CFM wash precipitator, the KES-2 and both hoods were purchased (including the upgrade to a water wash function on the Rev-Low hoods). Installation/Structural cost savings were estimated to be approximately $50,000.
OPERATING COSTS
1500 CFM less of air had to be tempered over the original design. The kitchen operates from 7 AM to 10 PM seven days a week. A five HP fan was used instead of a 10 HP for the larger CFM. Contract service costs are about the same, but detergent savings are on the order of $2000 annually.
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