HVAC Technician

Summary/Objective:

The Heating, Ventilation, and Air-Conditioning Mechanic installs, services and repairs environmental-control systems in residences, department stores, office buildings, and other commercial establishments, utilizing knowledge of refrigeration theory, pipe fitting and structural layout.

Essential Functions

• Mounts compressor and condenser units on platform or floor using hand tools,
• Follows blueprints or engineering specifications
• Fabricates, assembles and installs duct work and chassis parts,
• Uses portable metalworking tools and welding equipment,
• Installs evaporator unit in chassis or in air-duct system, using hand tools.
• Cuts and bends tubing to correct length and shape, using cutting and bending equipment and tools
• Cuts and threads pipe, using machine-threading or hand threading equipment
• Joins tubing or pipes to various refrigerating units by means of sleeves, couplings or unions, and solders joints
• Uses torch, forming complete circuit for refrigerant
• Installs expansion and discharge valves in circuit.
• Connects motors, compressors, temperature controls, humidity controls, and circulating ventilation fans to control panels and
• Connects control panels to power source
• Installs air and water filters in completed installation
• Injects small amount of refrigerant into compressor to test systems and adds Freon gas to build up prescribed operating pressure.
• Observes pressure and vacuum gauges and adjusts controls to insure proper operation
• Tests joints and connections for gas leaks, using gauges or soap and-water solution
• Wraps pipes in insulation batting and secures them in place with cement or wire bands
• Replaces defective breaker controls, thermostats, switches, fuses and electrical wiring to repair installed units
• Manage and operates Boiler and Chiller plants by maintaining system temperatures and equipment run times through the BAS system
• May install, repair and service air conditioners, chillers, and cooling towers ranging from one and a half to two hundred tons in laboratory and office buildings.
  

Certification/License Requirements

• EPA Universal License