The furniture finish is comprised of the application of a lacquer/stain and clear coat finish in liquid type industrial paint booths. To ensure air each paint booth is equipped with its own ventilation system. The exhausted air must be replaced with fresh external air supplied by a rooftop air make up unit. The fresh air must be heated in winter to the set shop temperature. Up until recently, control of the paint booths' air exhaust was an all or nothing situation. The paint booth operator would engage the booth's ventilator at full power at the start of his work shift and stop it at the end. Because spray finishing takes place only 30-40% of the time rather than continuously, there is a significant amount of energy was wasted by the ventilator, creating an unnecessarily high demand of energy required to heat fresh from the air make up system.
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