Heating and Air Conditioning Mechanics

Architecture & Construction > Maintenance/Operations

Projected Growth: Much faster than average

Projected Job Openings

Medium Preparation Needed

Job Description

Your job is to Install, service, or repair heating and air conditioning systems in residences or commercial establishments.

Common job titles of Heating and Air Conditioning Mechanics include:

Experience and Education

Previous work-related skill, knowledge, or experience is required for these occupations. For example, an electrician must have completed three or four years of apprenticeship or several years of vocational training, and often must have passed a licensing exam, in order to perform the job.

  • 54.5% said they needed a Post-Secondary Certificate.

  • 15.7% said they needed a Associate's Degree.


    Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.

    Repair or replace defective equipment, components, or wiring.

    Repair or service heating, ventilating, and air conditioning (HVAC) systems to improve efficiency, such as by changing filters, cleaning ducts, or refilling non-toxic refrigerants.

    Install, connect, or adjust thermostats, humidistats, or timers.

    Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.

    Test electrical circuits or components for continuity, using electrical test equipment.

    Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers.

    Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.

    Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.

    Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.

    Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders.

    Install and test automatic, programmable, or wireless thermostats in residential or commercial buildings to minimize energy usage for heating or cooling.

    Test pipe or tubing joints or connections for leaks, using pressure gauge or soap-and-water solution.

    Wrap pipes, securing insulation in place with cement or wire bands.

    Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.

    Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.

    Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools.

    Assemble, position, and mount heating or cooling equipment, following blueprints or manufacturer's specifications.

    Adjust system controls to settings recommended by manufacturer to balance system.

    Install radiator controls for room-level zone control heating of residential or commercial buildings.

    Install or repair self-contained ground source heat pumps or hybrid ground or air source heat pumps to minimize carbon-based energy consumption and reduce carbon emissions.

    Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems.

    Install magnetic-centrifugal chillers, compressors, or related equipment to cool air temperatures through the use of recirculating water.

    Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms.

    Fabricate, assemble, or install duct work or chassis parts, using portable metal-working tools or welding equipment.

    Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills.


Wire strippers

Wire cutters

Wet bulb/dew point meters

Welding hoods


Watt transducers

Water testers

All Tools

Water pressure gauges

Water level meters

Water flow meters


Venturi meters

Vacuum gauges

Utility knives

Two way radios

Turbine flow meters

Tubing benders


Tinners hammers


Temperature/humidity testers

Swaging tools

Strap wrenches

Staging equipment

Soldering equipment

Soft face hammers

Smoke pens

Smoke detector canisters

Slotted screwdrivers


Side cutting pliers

Sheet metal crimpers



Safety glasses


Revolutions per minute RPM meters

Resistance temperature detectors

Resistance meters

Refrigerant vacuum pumps

Refrigerant recovery machines

Refrigerant pressure meters

Refrigerant leak detectors

Reclaiming equipment

Reciprocating saws

Receptacle testers

Pressure gauges

Power hacksaws

Power grinders

Power drills

Portable drills

Pneumatic air gauges

Pitot tubes

Pipe wrenches

Pipe threaders

Pipe reamers

Pipe cutters

Pipe clamp thermocouples

Pipe benders

Phillips head screwdrivers

pH meters

Personal computers

Oxygen testers

Oil guns


Nut drivers

Non-contact voltage detectors

Non-contact surface temperature heads


Moisture meters

Milliohm meters

Milliamp/microamp meters

Metal snips



Magnetic pickup tools

Long nose pliers


Laser printers


Jig saws

Insulation knives

Inspection mirrors

Infrared thermometers


Humidity sensors

Hot wire anemometers


High-voltage probes

Hex wrenches

Heating ventilation and air-conditioning/refrigeration HVAC/R clamp meters

Handheld thermometers

Hand seamers

Hand hacksaws


Groove pliers

Flaring tools

Flared tip screwdrivers

Electrical current meters

Duplex pressure gauges

Duct vacuums

Duct slicers

Duct knives

Drill presses

Differential pressure detectors

Diagonal cutting pliers

Desktop computers


Contaminant content tests

Combustion analyzers

Combustible gas leak detectors

Claw hammers

Clamp-on multimeters

Circular saws

Circuit tracers

Circuit analyzers

Chart recorders

Caulking guns

Caulking equipment

Carbon monoxide detectors

Carbon dioxide CO2 testers

Capacitor analyzers

Brazing equipment

Box cutters

Bourdon tubes

Bead type thermocouples


Autoranging meters


Alternating current AC line splitters

Air velocity meters

Air flow sensors

Adjustable wrenches

Acetylene torches

4-wire resistance sensors


Computer aided design CAD software

HVAC tools software

IBM Maximo Asset Management

Adobe Acrobat

Alerton Ascent Compass

Atlas Construction Business Forms

Building automation software

All Technologies

Computerized maintenance management system CMMS

Contact management systems

Cworks CMMS

Delta Controls inteliWEB

Honeywell WEBs-N4

Internet browser software

Johnson Controls Metasys


Siemens APOGEE Building Automation Software



Installing equipment, machines, wiring, or programs to meet specifications.

Equipment Maintenance

Performing routine maintenance on equipment and determining when and what kind of maintenance is needed.


Determining causes of operating errors and deciding what to do about it.

Quality Control Analysis

Conducting tests and inspections of products, services, or processes to evaluate quality or performance.

Operation Monitoring

Watching gauges, dials, or other indicators to make sure a machine is working properly.


Repairing machines or systems using the needed tools.

Active Listening

Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times.

Reading Comprehension

Understanding written sentences and paragraphs in work related documents.

Critical Thinking

Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems.

Operation and Control

Controlling operations of equipment or systems.


Talking to others to convey information effectively.

Active Learning

Understanding the implications of new information for both current and future problem-solving and decision-making.

Equipment Selection

Determining the kind of tools and equipment needed to do a job.

Time Management

Managing one's own time and the time of others.


Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action.


Adjusting actions in relation to others' actions.

Complex Problem Solving

Identifying complex problems and reviewing related information to develop and evaluate options and implement solutions.

Judgment and Decision Making

Considering the relative costs and benefits of potential actions to choose the most appropriate one.

Systems Analysis

Determining how a system should work and how changes in conditions, operations, and the environment will affect outcomes.


Imagine how something will look after it is moved around or when its parts are moved or rearranged.

Cognitive Abilities › Spatial Abilities › Visualization

Listen to and understand information and ideas presented through spoken words and sentences.

Cognitive Abilities › Verbal Abilities › Oral Comprehension

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Occupation Sections



Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Building and Construction

Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.


Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub- atomic structures and processes.


Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.

English Language

Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.

Computers and Electronics

Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.


Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

Sales and Marketing

Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.

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