"HVAC Mechanic II"

HVAC Mechanic II

Posted: 24-Dec-25

Location: Baltimore, Maryland

Categories: Staff/Administrative

Internal Number: 8441

Duties & Responsibilities:

• Installs, operates, services, and repairs chiller plants with tonnage application up to 250 tons. Diagnoses, tests, repairs, and replaces complex internal chiller controls and auxiliary components of a total system.
• Operates, services, and repairs air handling and hydronic pumping systems of various designs.
• Performs test and balance procedures on air and hydronic systems to determine required adjustments. Makes adjustments to ensure optimal system operation.
• Tests water in cooling towers; adds chemicals for control of alkalinity, algae, and scale formation in condensers. Test the water in closed-loop systems; add chemicals to control corrosion and bio-growth.
• Diagnoses, maintains, and performs service repairs to gas burners. Replaces heat exchangers and component controls. Tests and sets up burner operation to provide proper fuel-to-air ratios.
• Maintains variable frequency drive applications on pumps and fans.
• Services and repairs humidification systems utilizing steam and/or self-generated applications.
• Services and repairs plumbing and electrical components of HVAC building systems.
• Provides guidance and training in the HVAC trade to other maintenance personnel.
• Performs all the duties of the Temperature Control Mechanic and HVAC Mechanic I.