Classification: Compulsory

A Residential (Low Rise) Sheet Metal Installer installs residential air-handling and ventilation systems in low-rise (four storeys or fewer) residential buildings that do not have common conditioned areas. The work is done in self/contained, singlefamily dwellings such as detached, semi-detached and town and linked homes that have a wood frame construction. Specifically, a Residential (Low Rise) Sheet Metal Installer:

• follows safe working practices and procedures and environmental protection practices
• organizes work for residential (low rise) sheet metal installations
• prepares the worksite
• installs ventilation and main ducts

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