Refrigeration & Air Conditioning Systems Mechanic (Refrigeration and Air Conditioning Mechanic)
Introduction
Refrigeration and air conditioning system mechanics install and service residential, commercial, industrial and institutional heating, ventilation, air conditioning and refrigeration units and systems. Their duties include laying out reference points for installation, assembling and installing components, installing wiring to connect components to an electric power supply and calibrating related controls.
Essential Skills Requirements:
 
Safety-related Activities
Reading
Ability to read installation, handling, storage and first aid instructions on a variety of product labels and packaging, e.g. read instructions on the storage and use of refrigerant gases. (Complexity: 1)
Ability to read safety-related information, e.g. read Material Safety Data Sheets (MSDS) to learn how to safely handle hazardous materials, such as solvents. (Complexity: 2)
Document Use
Ability to identify hazard and safety icons, e.g. scan icons affixed to products, such as flux-core solders, to learn about their toxic properties. (Complexity: 1)
Writing
Ability to write incident reports, e.g. complete incident reports to describe events leading up to accidents. (Complexity: 2)
Thinking
Ability to evaluate the safety of equipment and the severity of workplace hazards. (Complexity: 2)
Ability to evaluate the safety of the work environment by considering workplace hazards. (Complexity: 2)
 
Equipment Installation, Repair and Maintenance
Reading
Ability to read a variety of paper-based and electronic repair manuals to learn how to troubleshoot, service and maintain vehicles, e.g. read manuals to learn how to repair electrical system faults. (Complexity: 3 or higher)
Ability to understand and interpret codes, regulations and by-laws applicable to the refrigeration and air conditioning trade. (Complexity: 3 or higher)
Ability to understand and interpret written information in text books and training manuals. (Complexity: 3 or higher)
Ability to understand written instructions for the set-up, operation and maintenance of tools such as frequency meters, carbon monoxide analyzers and ultrasonic leak detectors. (Complexity: 3 or higher)
Document Use
Ability to locate operating data such as temperatures, pressures and electrical readings using gauges and digital readouts. (Complexity: 1)
Ability to interpret flowcharts, e.g. interpret a multi-step flowchart to learn how to troubleshoot a faulty electrical system. (Complexity: 2)
Ability to interpret graphs generated by computerized equipment, such as scan tools, to troubleshoot faults and establish the condition of components. (Complexity: 2)
Ability to use a variety of assembly drawings, e.g. use assembly drawings to learn how to install fixtures and appliances. (Complexity: 2)
Ability to interpret blueprints to determine sites for equipment installation, routing for ducting and pipes, locations of control boxes or venting. (Complexity: 3 or higher)
Ability to locate data in a variety of complex tables, e.g. locate data, such as dimensions, classifications, tolerances, coefficients, identification numbers and quantities, in specification tables. (Complexity: 3 or higher)
Thinking
Ability to choose tools, methods and products for plumbing installations and repairs, e.g. consider project scopes and the availability of materials and labour. (Complexity: 1)
Ability to choose the order of tasks and their priorities, e.g. decide the order in which to install fixtures and test systems. (Complexity: 2)
Ability to evaluate the severity of refrigeration and air conditioning system faults by considering factors such as readings, noise levels, pressures, temperatures, vibrations and odours. (Complexity: 2)
Ability to evaluate work projects by considering factors such as efficiencies, timelines, costs and the quality of work performed. (Complexity: 3 or higher)
Digital Technology - Internet
Ability to use Internet browsers and search engines to access specifications, safety codes and regulations, technical service bulletins, warranty information and repair procedures from websites operated by manufacturers and regulatory bodies. (Complexity: 2)
Digital Technology - Other Digital Technology
Ability to use diagnostic equipment (e.g. scan tools) to determine operational data, such as pressure readings. (Complexity: 2)
 
General Administrative Duties
Reading
Ability to read short notes, e.g. read reminders about parts to be ordered and detailed descriptions of defective parts on warranty claim forms. (Complexity: 1)
Ability to read bulletins and notices, e.g. read bulletins to learn about changes to operating procedures and read notices to learn about product recalls. (Complexity: 2)
Document Use
Ability to complete a variety of checklists and forms, e.g. complete hazard assessment forms and purchase orders by checking boxes and entering data, such as dates, times and quantities. (Complexity: 1)
Ability to enter and locate data, such as dates and identification numbers, in labels and tags. (Complexity: 1)
Writing
Ability to write short comments in forms and log books, e.g. write comments in order forms to specify part requirements. (Complexity: 1)
Ability to write project details on estimate sheets and work orders, e.g. explain the tasks to be performed on job estimates. (Complexity: 2)
Oral Communication - Listening
Ability to understand short spoken statements such as a simple instruction or question. (Complexity: 1)
Ability to understand moderately complex spoken statements such as instructions involving multiple steps. (Complexity: 2)
Oral Communication - Speaking
Ability to ask simple questions and explain simple thoughts, instructions and opinions using appropriate language. (Complexity: 1)
Ability to explain moderately complex thoughts, instructions and opinions using appropriate tone and language. (Complexity: 2)
 
Use of Mathematics
Whole Numbers
Ability to add, subtract, multiply and divide whole numbers. (Complexity: 2)
Fractions
Ability to add, subtract, multiply and divide fractions. (Complexity: 2)
Decimals
Ability to add, subtract, multiply and divide decimals. (Complexity: 2)
Percents and Mixed Operations
Ability to use percent to locate numbers; add, subtract, multiply and divide signed numbers; complete mixed operations with whole numbers, fractions, percents and decimals. (Complexity: 2)
Data Analysis
Ability to calculate and use totals, sub-totals and basic summary measures like averages and rates; perform proportional calculations. (Complexity: 2)
Geometry - Basic Skills
Ability to analyze and draw lines and line segments; use coordinates to locate points in a plane; calculate angles; use concepts such as parallelism to solve problems. (Complexity: 2)
Geometry - Plane Figures
Ability to calculate perimeters, areas and circumferences; analyze angles and distances in triangles, rectangles and circles; analyze complex shapes into constituent plane figures. (Complexity: 2)
Geometry - Solids
Ability to calculate volumes of rectangular solids, cylinders and prisms; analyze complex volumes into constituent regular solids. (Complexity: 2)
Geometry - Advanced Tasks
Ability to analyze angles and distances in plane figures; calculate areas of other polygons; use theorem to solve problems; calculate areas and volumes of objects such as spheres, pyramids and cones. (Complexity: 2)
Measurement
Ability to measure things such as distances, weights, volumes, temperatures and angles; use and convert between Metric and Imperial measurement units. (Complexity: 2)
Algebra
Ability to construct and solve equations with one to three different variables and use common formulas. (Complexity: 2)
Trigonometry
Ability to use trigonometry to identify and calculate the unknown lengths and angles of triangles. (Complexity: 2)
Writing
Ability to write reminders and short notes to customers and co-workers, e.g. write short notes to inform supervisors about repairs in-progress and tasks to be completed. (Complexity: 1)