HVAC Mechanic I & II
Purpose: An employee in this class performs the full range of duties associated with installation, maintenance, and repair
of ventilation, air conditioning and environment control systems. A larger, costlier, exceptional, or more complex job may be
reviewed by a technical supervisor to determine appropriate procedures and to assure that proper work methods are being
followed. Employees receive work orders indicating the nature of the work to be done. They are expected to determine the
materials, tools, and repair procedures needed. Errors may be revealed or may only be located after involvement of a
supervisor, and may be costly to fix. Limited supervision is given to this employee.
Qualifications:
• Minimum Experience: Four Year’s experience in installation, Maintenance and repair of HVAC and environmental
control systems with strong emphasis on hydronic and stream boilers and centrifugal chillers. Requires knowledge
of electricity, DDC control systems, heating and a/c requirements and the ability to follow blueprints and diagrams
Knowledge, Skills, and Abilities:
• Working knowledge of ventilation and refrigeration theory
• Working knowledge of the practices, methods, materials, and equipment used in the maintenance and repair of
ventilation, air conditioning and environmental control equipment
• Working knowledge of electricity
• Working knowledge of the design and operation of reciprocal compressors
• Working knowledge of the design and operation of pneumatic control systems
• Ability to diagnose equipment malfunction and prescribe repair procedures
• Ability to follow specific written or oral instructions
• Ability to use recycle and recovery equipment
• Skill in the use of tools and equipment utilized in the repair of ventilation, air conditioning, and environmental control
equipment.
Key Duties and Responsibilities:
• Troubleshoots and repairs electrical control circuits, using electrical test devices
• Replaces faulty thermostats, wiring, and controls
• Checks accuracy and calibrates electrical, pneumatic, and electronic control systems
• Overhauls small reciprocal compressors
• Cleans, lubricates and services ventilation, air conditioning, and environmental control equipment
• Sets ventilation, air conditioning, and environmental control equipment into place
• Wires controls
• Forms metal sheeting into duct
• Connects and installs piping and duct
• Removes and replaces joints or lengths of pipe and duct in distribution systems
• Adjusts and balances distribution systems to achieve maximum energy efficiency
• Uses recycle and recovery equipment

4/2019
General Position Comments: Installs, modifies and repairs HVAC systems. Reviews HVAC requirements in order to
make effective and efficient recommendations. Trouble shoots and repairs complex chillers, boilers, pipe systems and
control problems, and help determine parts needed and best work procedures. Willing to be on-call in case of emergency.