Classification: Compulsory

A Residential Air Conditioning Systems Mechanic works on residential air conditioning systems including geo-exchange systems. Specifically, a Residential Air Conditioning Systems Mechanic:

• plans, lays out, installs, starts-up, connects, maintains, services, repairs, tests, verifies, commissions, and decommissions residential air conditioning systems, components and their accessories
• installs and connects piping for the purpose of conveying all types of refrigerants used for both primary and secondary heating and cooling
• maintains, services, repairs and replaces system components and accessories, including electrical and electronic components
• checks efficiency outputs and parameters; inspects and checks operation and integrity of components; determines set points; replaces defective, leaking, discoloured and worn components; performs shut-downs and lock outs; makes adjustments to pressures and controls; cleans and lubricates components; checks calibrations; reassembles and repair components and systems; starts-up, tests and charges the systems
• measures, cuts, bends, threads and connects pipe to functional components and utilities
• services, tests, adjusts, commissions and decommissions the system

A Sheet Metal Worker designs, creates, assembles installs, and repairs sheet metal products. Specifically, a Sheet Metal Worker:

• manufactures, creates, assembles, handles, erects, installs, dismantles, reconditions, adjusts, alters, repairs and/or services all ferrous and nonferrous sheet metal work of No. 10 U.S. Gauge or of any equivalent or lighter gauge and all other materials used in lieu thereof
• reads and understands shop and field sketches used in fabrication and erection, including those taken from original architectural and engineering drawings or sketches
• fabricates or installs metal cladding over insulation

 Red Seal trade