Knowledge and ability to perform preventive maintenance on all HVAC equipment, including: Rooftop Units, Liebert Units, Heating Boilers, Domestic Hot Water Boilers, VAV Boxes, Heat Pump Systems, Ice Machines, Kitchen Equipment, and Split Systems. At Lindner Center of Hope, you’ll have the opportunity for a consistently rewarding career, working for an organization that shares your desire and ability to make a demonstrable difference in the lives of people living with mental illness.