This shop employs 8 full time employees. The ZPM maintains campus lighting and performs preventive maintenance in the 70 teaching building. The primary responsibilities are to service all building equipment, lighting, and campus walk lights. The 70 teaching buildings on campus are divided into 5 zones. ZPM employees are in each building 4 times a year. Their job duties in each zone include troubleshooting, inspecting, maintaining, and servicing at scheduled intervals in excess of 800,000 square feet of building equipment such as air handler units, air compressors, air dryer, unit ventilators, exhaust fans, electric motors, hot and chilled water pumps, condenser, condensate, and sump pumps. Cleaning and keeping drain lines, drain pans, down spouts, and gutters free of debris. Lubricating pulleys, sheaves, bearings, and motors. Changing oil and filters. Repair and maintain building lighting, walk lights, classroom furniture, and flooring. This includes troubleshooting and replacing bulbs, ballast's, light switches, dimmer switches, wall outlets, breakers, fuses, electric motors, door hardware, ceiling tile, floor tile, base cove, classroom teaching aids, flush valves, faucets, fixture seats, toilet paper holders, and towel dispensers.