HVACR MASTER TECHNICIAN

• Maintain, troubleshoot, repair, balance, and analyze all types of HVACR equipment, systems, designs, and applications.
• Service air conditioning units, water coolers, split systems, heat pumps, mixing boxes, air handlers, exhaust fans, supply fans, and fume hoods.
• Maintain and repair DX equipment (up to 5 tons), refrigeration systems, ice machines, freezers, coolers, and research HVACR equipment.
• Troubleshoot and repair hermetic, semi-hermetic, reciprocating, scroll, centrifugal, and screw chillers.
• Perform preventive maintenance on airside and waterside systems including coils, pumps, towers, compressors, and valves.

• Troubleshoot, repair, and adjust pneumatic, electronic, and line-voltage controls.
• Program and troubleshoot variable frequency drives (VFDs).
• Program, monitor, and adjust automated building control systems and terminal-level controllers.
• Use the Facilities Automated Control System to identify system issues and implement corrective actions.
• Read and interpret blueprints, block diagrams, ladder diagrams, and electrical schematics.

• Analyze HVAC system performance using psychrometrics and computer-based analysis tools.
• Monitor temperature and pressure readings for historical tracking and system optimization.
• Perform air and water balancing and make appropriate operational adjustments.
• Identify and correct deficiencies in pneumatic, electrical, airside, and waterside systems.

• Install wiring, prefabricated ductwork, motors, pumps, compressors, and related components.
• Braze and soft-solder refrigerant, pneumatic, and water piping.
• Commission HVAC equipment and systems for new construction and renovation projects.
• Conduct site surveys, review HVAC designs and blueprints, and submit written recommendations.
• Assist with HVAC-related planning, estimating, and project coordination.

• Properly add, recover, and document refrigerant in accordance with Duke and federal guidelines.
• Maintain refrigerant logs, service reports, preventive maintenance records, and inventory documentation.
• Follow lockout/tagout, PPE, hazardous waste, and OSHA safety protocols.
• Properly handle, store, transfer, and dispose of HVAC filters and chemical treatments.

• Assist and mentor other mechanics by following oral and written instructions.
• Clean mechanical rooms, deliver parts, and support team operations as needed.
• Participate in on-call or standby rotations as defined by the Local 465 agreement.

Duke is an Equal Opportunity Employer committed to providing employment opportunity without regard to an individual's age, color, disability, gender, gender expression, gender identity, genetic information, national origin, race, religion, sex (including pregnancy and pregnancy related conditions), sexual orientation or military status.