Classification: Compulsory

A Plumber installs, repairs and maintains piping systems, fixtures and other plumbing equipment used for water distribution, drainage and waste disposal. Specifically, a Plumber:

• lays out, assembles, installs, maintains and repairs piping, fixtures and other components for the supply or disposal of water for any domestic or industrial purpose
• connects any appliance that uses water
• installs the piping for any process, including the conveyance of gas, or any tubing for a pneumatic or air-handling system
• reads and understands design drawings, manufacturers’ literature, and installation diagrams for piping and appliances

 Red Seal trade

A Refrigeration and Air Conditioning Systems Mechanic works on refrigeration, cooling and combined heating cooling combination systems including geo-exchange systems in residential, industrial, commercial, and institutional settings. Specifically, a Refrigeration and Air Conditioning Systems Mechanic:

• plans, lays out, installs, starts-up, connects, maintains, services, repairs, tests, verifies, commissions and decommissions refrigeration and air conditioning systems, electronic 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
• checks efficiency outputs and parameters; inspects and checks operation and integrity of components; determines set points; replaces defective, leaking, discolored and worn components; performs shut-downs and lock outs; makes adjustments to pressures and controls; cleans and lubricates components; checks calibrations; reassembles and repairs components and systems; starts-up, tests and charges the systems
• measures, cuts, bends, threads and connects pipe to functional components and utilities and services, tests, adjusts, commissions and decommissions the system

 Red Seal trade

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