li>3+ Plus years of hands-on experience with air-cooled and water-cooled systems, hot water boilers, hydronics, piping, pumps, air handlers, cooling towers, and gas heaters. Time Off and Leave: Paid vacation days, up to 15 days; paid sick days, up to 5 days; paid personal leave, up to 5 days; paid holidays, up to 13 days; birth and adoption leave; parental leave; family and medical leave; bereavement leave; jury duty; military leave; purchased vacation.