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7313.0 – Heating, refrigeration and air conditioning mechanics

Heating, refrigeration and air conditioning mechanics install, maintain, repair and overhaul residential central air conditioning systems, commercial and industrial refrigeration and air conditioning systems and combined heating, ventilation and cooling systems. Transport refrigeration mechanics are included in this group.

Profile

Example titles Help

  • Central air conditioning mechanic
  • Commercial air conditioning mechanic
  • Heating and cooling mechanic
  • Heating, ventilation and air conditioning (HVAC) mechanic
  • Refrigeration and air conditioning mechanic apprentice
  • Refrigeration mechanic
  • Transport refrigeration mechanic

Main characteristics Help

  • General learning ability to assemble and install refrigeration and air conditioning components such as motors, controls, gauges, valves, circulating pumps, condensers, humidifiers, evaporators and compressors using hand and power tools; may prepare work estimates for clients
  • Spatial perception to read and interpret blueprints, drawings and other specifications
  • Motor co-ordination to install and maintain combined heating and cooling units and to start up systems and test for leaks using testing devices; may install, maintain and repair equipment in refrigerated trucks used to transport food and medical supplies
  • Finger dexterity and Manual dexterity to connect piping using welding and brazing equipment
  • Objective interest in precision working to measure and cut piping and to measure and lay out reference points for installation
  • Methodical interest in recharging systems with refrigerant, checking and testing regulators and calibrating systems; and in performing routine maintenance and servicing
  • Innovative interest in analyzing information to repair and replace parts and components for entire refrigeration, air conditioning, ventilation and heat-pump systems; and in installing, troubleshooting and overhauling entire heating, ventilation, air handling, refrigeration and air conditioning systems

Aptitudes Help

One of five levels assigned for each factor, with levels representing normal curve distribution of the labour force:

G
General learning ability
V
Verbal ability
N
Numerical ability
S
Spatial perception
P
Form perception
Q
Clerical perception
K
Motor co-ordination
F
Finger dexterity
M
Manual dexterity

Levels legend
  1. The highest 10% of the working population
  2. Upper third, exclusive of the highest 10%
  3. Middle third of the working population
  4. Lowest third, exclusive of the lowest 10%
  5. Lowest 10% of the working population

An individual's overall capacity to learn the skills needed to perform job duties is based on his or her specific aptitudes for acquiring information and transforming it into action.

General learning ability G-3

Ability to 'catch on' or understand instructions and underlying principles; to reason and make judgments.

Verbal ability V-3

Ability to understand the meaning of words and the ideas associated with them, and to use them effectively; to comprehend language, to understand relationships between words and to understand the meaning of whole sentences and paragraphs; to present information or ideas clearly.

Numerical ability N-3

Ability to carry out arithmetical processes quickly and accurately.

Spatial perception S-3

Ability to think visually about geometric forms and comprehend the two dimensional representation of three dimensional objects; to recognize the relationships resulting from the movement of objects in space. May be used in such tasks as blueprint reading and in solving geometry problems. Frequently described as the ability to 'visualize' objects of two or three dimensions.

Form perception P-3

Ability to perceive pertinent detail in objects and in pictorial and graphic material; to make visual comparisons and discriminations and to see slight differences in shapes and shadings of figures and widths and lengths of lines.

Clerical perception Q-4

Ability to perceive pertinent detail in verbal or tabular material; to observe differences in copy, to proofread words and numbers, and to avoid perceptual errors in arithmetical computation.

Motor co-ordination K-3

Ability to co-ordinate eyes, hands and fingers rapidly and accurately when required to respond with precise movements.

Finger dexterity F-3

Ability to move the fingers and manipulate small objects with the fingers rapidly and/or accurately.

Manual dexterity M-3

Ability to move the hands easily and skillfully; to work with the hands in placing and turning motions.

Interests Help

Three of five descriptive factors, assigned in order of predominance and lower case rating indicating weaker representation:

D
Directive
I
Innovative
M
Methodical
O
Objective
S
Social

Objective O

Objective persons enjoy working with tools, equipment, instruments and machinery. They like to repair and/or fabricate things from various materials according to specifications and using established techniques. Objective persons are interested in finding out how things operate and how they are built.

Methodical M

Methodical persons like to have clear rules and organized methods to guide their activities. They prefer working under the direction or supervision of others according to given instructions, or to be guided by established policies and procedures. Methodical persons like to work on one thing until it is completed. They enjoy following a set routine and prefer work that is free from the unexpected.

Innovative I

Innovative persons like to explore things in depth and arrive at solutions to problems by experimenting. They are interested in initiating and creating different ways to solve questions and present information. They enjoy scientific subjects. Innovative persons prefer to be challenged with new and unexpected experiences. They adjust to change easily.

Data, people, and things Help

Data

0
Synthesizing
1
Co-ordinating
2
Analyzing
3
Compiling
4
Computing
5
Copying
6
Comparing
7
N/A
8
Not Significant

People

0
Mentoring
1
Negotiating
2
Instructing - Consulting
3
Supervising
4
Diverting
5
Persuading
6
Speaking - Signaling
7
Serving - Assisting
8
Not significant

Things

0
Setting up
1
Precision working
2
Controlling
3
Driving - Operating
4
Operating - Manipulating
5
Tending
6
Feeding - Offbearing
7
Handling
8
Not significant
Data Analyzing 2

Examining and evaluating data; frequently presenting alternative action in relation to the evaluation.

People Not significant 8

Not significant

Things Precision working 1

Using the body and/or equipment to move, guide, place, install and/or interface with objects, in order to attain specifications and precise standards. Considerable judgment is required to select, adjust and utilize appropriate tools, products and/or materials to accomplish specified objectives.

Physical activities Help

V - Vision

1
Close visual acuity
2
Near vision
3
Near and far vision
4
Total visual field

H - Hearing

1
Limited
2
Verbal interaction
3
Other sound discrimination

L - Limb co-ordination

0
Not relevant
1
Upper limb co-ordination
2
Multiple limb co-ordination

C - Colour discrimination

0
Not relevant
1
Relevant

B - Body position

1
Sitting
2
Standing and/or walking
3
Sitting, standing, walking
4
Other body positions

S - Strength

1
Limited
2
Light
3
Medium
4
Heavy
Vision Near vision V-2

The use of sight in the work performed. The levels are organized in terms of the visual field involved in the performance of the work.

2 - Near vision

Work activities are performed near the worker. The scope of the visual field is broader than in Close visual acuity (1).

Examples:

  • reading and interpreting drawings and specifications
  • using computer keyboards and reading computer monitors
  • repairing automobile engines
  • setting up and operating machine tools
Colour discrimination Relevant C-1

The use of colour descrimination to identify, distinguish and match colours and different shades of the same colours.

1 - Relevant

Colour discrimination is relevant in the performance of the work.

Examples:

  • observing signals while operating vehicles
  • installing, testing and repairing electrical wiring
  • restoring and conserving museum and art gallery artifacts
  • designing, constructing and repairing dentures
Hearing Limited H-1

The use of hearing in the work performed. The levels are organized in terms of the type of auditory discrimination involved in the performance of the work.

1 - Limited

Hearing is limited to short and/or infrequent verbal interactions in order to perform the work.

Examples:

  • typing and proofreading correspondence
  • cutting and trimming meat, poultry and fish according to customers' orders
  • carrying linen to and from laundry areas and running errands
  • assisting mine workers in constructing underground installations
Body position Other body positions B-4

Primary type of posture or body movement involved in performing the work. These postures or body movements range from simple to complex and from sedentary to mobile.

4 - Other body positions

Work activities involve body postures other than, or in addition to, Sitting (1) and Standing and/or walking (2) such as bending, stooping, kneeling and crouching

Examples:

  • performing labouring duties in warehouses
  • measuring, cutting and installing carpeting
  • adjusting, repairing or replacing parts and components of automotive systems
  • treating patients' disorders of the spine and body through corrective manipulation
Limb co-ordination Multiple limb co-ordination L-2

The use of limbs in performing work.

2 - Multiple limb co-ordination

Work activities are carried out by co-ordinating the movements of upper limb(s) simultaneously with lower limb(s).

Examples:

  • digging ditches using shovels
  • operating and driving automobiles, vans and trucks
  • climbing and working aloft on poles, ladders or other support structures
  • performing in figure skating competitions
Strength Heavy S-4

The use of strength in the handling of loads such as pulling, pushing, lifting and/or moving objects during the work performed.

4 - Heavy

Work activities involve handling loads more than 20 kg.

Examples:

  • operating and maintaining deck equipment and performing other deck duties aboard ships
  • shovelling cement into cement mixers and assisting in the maintenance and repair of roads
  • measuring, cutting and fitting drywall sheets for installation on walls and ceilings
  • operating power saws to thin and space trees in reforestation areas

Environmental conditions Help

Location

L1
Regulated inside climate
L2
Unregulated inside climate
L3
Outside
L4
In a vehicle or cab

Hazards

H1
Dangerous chemical substances
H2
Biological agents
H3
Equipment, machinery, tools
H4
Electricity
H5
Radiation
H6
Flying particles, falling objects
H7
Fire, steam, hot surfaces
H8
Dangerous locations

Discomforts

D1
Noise
D2
Vibration
D3
Odours
D4
Non-toxic dusts
D5
Wetness
Hazards Dangerous chemical substances H1

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H1 - Dangerous chemical substances

Exposure to any chemical that may endanger health through inhalation, absorption or ingestion, contact with skin or eyes, or any chemical with the potential for fire or explosion. Substances may be in forms such as solids, liquids, gases, aerosols or particles.

Examples:

  • extracting coal (involves exposure to silica particles)
  • removing asbestos insulation from buildings
  • joining bricks with mortar (contains lime)
  • mixing pesticides to spray crops
  • painting building interiors
Hazards Equipment, machinery, tools H3

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H3 - Equipment, machinery, tools

Working near or with equipment, instruments, machinery or power/hand tools that may be a potential source of accident or injury.

Examples:

  • operating metal machining tools to shape metal
  • using hand tools to fabricate wood products
  • operating power saws to thin trees
  • performing surgical procedures
Hazards Electricity H4

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H4 - Electricity

Exposure to electrical circuitry, high tension wires, transformers or other equipment that may be a potential source of electrical shock.

Examples:

  • installing or repairing electrical wiring, motors and generators
  • maintaining underground power transmission and distribution systems
  • operating semi-automatic electric arc welding equipment
  • repairing industrial electrical control systems and devices
Hazards Fire, steam, hot surfaces H7

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H7 - Fire, steam, hot surfaces

Exposure to fire (rather than exposure to flammable substances that may ignite), to emissions of steam or to intensely hot surfaces that are potential sources of injury.

Examples:

  • fighting fires
  • operating gas flame welding equipment
  • cooking food
  • forging metal items by hand or with forging machinery
  • tending industrial ovens/furnaces
Hazards Dangerous locations H8

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H8 - Dangerous locations

Working in locations that are inherently treacherous and are potential sources of injury. Such work locations include construction sites, underground sites, erected support structures and marine environments.

Examples:

  • building underground passageways in mines
  • installing roof shingles
  • washing exterior windows of buildings
  • commanding fishing vessels
  • operating underwater video, sonar, recording and related equipment
Location Regulated inside climate L1

The work performed is carried out indoors in a regulated environment, indoors in an unregulated environment, outdoors or in a vehicle. In many occupations, the Main Duties may be performed in more than one location. Therefore, a group may have more than one Location code, for example:

  • firefighting and fire prevention duties
  • maintenance of interior/exterior of buildings
  • managing operations and paperwork of farms

L1 - Regulated inside climate

A normal controlled environment such as an office, hospital or school.

Location Unregulated inside climate L2

The work performed is carried out indoors in a regulated environment, indoors in an unregulated environment, outdoors or in a vehicle. In many occupations, the Main Duties may be performed in more than one location. Therefore, a group may have more than one Location code, for example:

  • firefighting and fire prevention duties
  • maintenance of interior/exterior of buildings
  • managing operations and paperwork of farms

L2 - Unregulated inside climate

An inside work environment where the temperature or humidity may be considerably different from normal room conditions. In some groups, the nature of the duties affects the temperature or humidity of the work environment.

Examples:

  • extracting coal/ore from underground mines
  • operating machines that press or blow molten glass
  • unloading stock into cold storage freezers
  • operating furnaces to melt metals for casting

Employment requirements Help

Education/training Help

1
No formal education or training requirements
2
Some high school education and/or on the job training or experience
3
High school
4
Course work, training, workshops and/or experience related to the occupation
5
Apprenticeship, specialized training, vocational school training
6
College, technical school (certificate, diploma)
7
Undergraduate degree
8
Post-graduate or professional degree
+
Additional requirement beyond education and training
R
Regulated requirement(s)
4+, 5, R
  • Completion of secondary school and training courses or a vocational program is usually required.
  • Completion of a three- to five-year apprenticeship program
    or
    a combination of over five years of work experience and industry courses in refrigeration and air conditioning repair is usually required to be eligible for trade certification.
  • Trade certification for refrigeration and air conditioning mechanics is compulsory in Nova Scotia, New Brunswick, Quebec, Ontario, Manitoba, Saskatchewan and Alberta and available, but voluntary, in all other provinces and the territories.
  • Trade certification for transport refrigeration mechanics is available, but voluntary, in New Brunswick and Alberta.
  • Red Seal endorsement is also available to qualified refrigeration and air conditioning mechanics upon successful completion of the interprovincial Red Seal examination.

Workplaces/employers Help

  • Engineering firms
  • Food wholesalers
  • Heating, refrigeration and air conditioning installation contractors
  • Industrial establishments
  • Retail and servicing establishments

Occupational options Help

  • Progression to supervisory positions is possible with experience.
  • The Red Seal endorsement allows for interprovincial mobility.
  • The Red Seal endorsement allows for interprovincial mobility.

Exclusions Help

Remarks Help

  • For some occupations in this group, Hazards H8(Dangerous locations) may also apply

Breakdown summary

Broad occupational category
7 - Trades, transport and equipment operators and related occupations
Skill level
B - Occupations usually require college education, specialized training or apprenticeship training
Major group
73 - Maintenance and equipment operation trades
Minor group
731 - Machinery and transportation equipment mechanics (except motor vehicles)
Unit group
7313 - Heating, refrigeration and air conditioning mechanics
Version
2016
Date modified: