Job Summary: An employee in this class constructs, modifies, or repairs heating, ventilation, and air conditioning equipment and environmental control systems. This employee may serve as the technical expert in one or more areas of the heating, ventilation, and air conditioning fields. Employees at this level review the heating and cooling requirements and make recommendations to achieve optimum system effectiveness and efficiency. The employee is expected to resolve most problems. Errors may or may not be quickly revealed, and they may result in inefficient and potentially dangerous situations. Work is performed independently under general supervision.

Terms of Employment: 12 months, with salary to be determined by State Salary Schedule.

Duties and Responsibilities:

• Overhauls large reciprocal, absorption, and centrifugal compressors.
• Troubleshoots and repairs complex chiller or control problems and determines parts needed and work procedures.
• Analyzes HVAC system requirements recommending new systems or modifications.
• Researches new equipment or procedures for possible adoption and use.
• Reads blueprints and diagrams.
• Sets heating, air conditioning, ventilation, and environmental control equipment into place.
• Wires controls and other related electrical equipment.
• All other duties as assigned.

Knowledge, Skills, and Abilities:

• Considerable knowledge of heating, ventilation, and refrigeration theory.
• Considerable knowledge of the practices, methods, materials, and equipment used in the maintenance and repair of HVAC equipment.
• Considerable knowledge of the design and operation of centrifugal and reciprocal compressors.
• Working knowledge of electricity.
• Working knowledge of the design and operation of pneumatic control systems.
• Ability to diagnose equipment malfunctions and prescribe repair procedures.
• Ability to follow broad written or oral instructions.
• Ability to follow blueprints and diagrams.
• Ability to analyze building heating and air conditioning requirements and recommend systems or modifications.

Physical Requirements:

• Must be able to occasionally lift and/or carry up to 100 pounds.
• Must be able to frequently lift and/or carry up to 10 pounds.
• Must be able to occasionally push or pull up to 100 pounds.
• Must be able to frequently push or pull up to 10 pounds.
• Must be able to move machinery safely.
• Must be able to frequently perform the following: work on ladders, handling, and reaching.
• Must be able to occasionally perform the following: climbing, crawling, kneeling, crouching, overhead lifting, stooping, fine manipulation, bending, keying, and balancing.

Suggested Training and Experience: Considerable experience in the installation, maintenance, and repair of HVAC, and related environmental control systems.

Special Requirements: This employee must hold a heating and/or air conditioning license based on State requirements, as directed by the Board of Examiners of Plumbing, Heating, Air Conditioning, and Fire Sprinkler Contractors.