Delaware State Gov - 1020 N King St [Refrigeration Technician / AC Technician] As a Refrigeration Technician at the State of Delaware, you'll: Identify and diagnose malfunctioning systems to include air conditioning, refrigeration, ventilation, boilers, heat pumps, environmental units and related electrical components; Conduct preventative maintenance on complex HVAC/R systems and determine the need for repair and/or replacement of system components...Hiring Immediately >>