JOB SUMMARY: This position provides support in the areas of operation, maintenance, troubleshooting and repair of the large and complex systems utilized for air conditioning and heating various historic and non-historic buildings within Independence National Historical Park. The incumbent also performs various duties in the plumbing and electrical trades. MAJOR DUTIES: Provide support in the areas of operation, maintenance, troubleshooting. and repair of the large and complex systems utilized for air conditioning and heating of various historic and non-historic buildings, operating, installing. repairing. and maintaining several types of HVAC equipment. Make repairs to electrical and mechanical evaporators their blowers, motors: install. service and maintain condensed cooling towers and their fans. fan motors, blowers, exhaust and water pumps. Read and comprehend blueprint, technical manual, sketches, building plans an notes: follow manufacturer's instruction and safety manuals for tools, materials and equipment: Follow Local, State, Federal, and international building codes. Ability to select required materials and number of materials needed. Check and inspect equipment. tools, and systems to perform preventive maintenance corrective action. IMPORTANT: Click the 'Apply for this job' button to view a complete job description.