Install and repair industrial and commercial refrigerating systems.
Tasks
Observe and test system operation, using gauges and instruments.
Adjust valves according to specifications and charge system with proper type of refrigerant by pumping the specified gas or fluid into the system.
Test lines, components, and connections for leaks.
Dismantle malfunctioning systems and test components, using electrical, mechanical, and pneumatic testing equipment.
Adjust or replace worn or defective mechanisms and parts, and reassemble repaired systems.
Braze or solder parts to repair defective joints and leaks.
Perform mechanical overhauls and refrigerant reclaiming.
Keep records of repairs and replacements made and causes of malfunctions.
Install expansion and control valves, using acetylene torches and wrenches.
Install wiring to connect components to an electric power source.
Mount compressor, condenser, and other components in specified locations on frames, using hand tools and acetylene welding equipment.
Schedule work with customers and initiate work orders, house requisitions and orders from stock.
Supervise and instruct assistants.
Estimate, order, pick up, deliver, and install materials and supplies needed to maintain equipment in good working condition.
Cut, bend, thread, and connect pipe to functional components and water, power, or refrigeration system.
Lay out reference points for installation of structural and functional components, using measuring instruments.
Read blueprints to determine location, size, capacity, and type of components needed to build refrigeration system.
Lift and align components into position, using hoist or block and tackle.
Fabricate and assemble structural and functional components of refrigeration system, using hand tools, power tools, and welding equipment.
Drill holes and install mounting brackets and hangers into floor and walls of building.
Insulate shells and cabinets of systems.
Knowledge
Mechanical
Knowledge of machines and tools, including their designs, uses, repair, and maintenance.
Physics
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.
Engineering and Technology
Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.
Customer and Personal Service
Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.
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.
Design
Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.
Computers and Electronics
Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.
Mathematics
Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
Skills
Repairing
Repairing machines or systems using the needed tools.
Troubleshooting
Determining causes of operating errors and deciding what to do about it.
Operation Monitoring
Watching gauges, dials, or other indicators to make sure a machine is working properly.
Equipment Maintenance
Performing routine maintenance on equipment and determining when and what kind of maintenance is needed.
Installation
Installing equipment, machines, wiring, or programs to meet specifications.
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.
Abilities
Problem Sensitivity
The ability to tell when something is wrong or is likely to go wrong. It does not involve solving the problem, only recognizing there is a problem.
Visualization
The ability to imagine how something will look after it is moved around or when its parts are moved or rearranged.
Deductive Reasoning
The ability to apply general rules to specific problems to produce answers that make sense.
Extent Flexibility
The ability to bend, stretch, twist, or reach with your body, arms, and/or legs.
Hearing Sensitivity
The ability to detect or tell the differences between sounds that vary in pitch and loudness.
Oral Comprehension
The ability to listen to and understand information and ideas presented through spoken words and sentences.
Arm-Hand Steadiness
The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position.
Near Vision
The ability to see details at close range (within a few feet of the observer).
Oral Expression
The ability to communicate information and ideas in speaking so others will understand.
Work Activities
Updating and Using Relevant Knowledge
Keeping up-to-date technically and applying new knowledge to your job.
Repairing and Maintaining Mechanical Equipment
Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles.
Repairing and Maintaining Electronic Equipment
Servicing, repairing, calibrating, regulating, fine-tuning, or testing machines, devices, and equipment that operate primarily on the basis of electrical or electronic (not mechanical) principles.
Performing General Physical Activities
Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.
Controlling Machines and Processes
Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles).
Making Decisions and Solving Problems
Analyzing information and evaluating results to choose the best solution and solve problems.
Handling and Moving Objects
Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things.
Establishing and Maintaining Interpersonal Relationships
Developing constructive and cooperative working relationships with others, and maintaining them over time.
Communicating with Supervisors, Peers, or Subordinates
Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person.
Monitor Processes, Materials, or Surroundings
Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems.
Work Context
Contact With Others
How much does this job require the worker to be in contact with others (face-to-face, by telephone, or otherwise) in order to perform it?
Wear Common Protective or Safety Equipment such as Safety Shoes, Glasses, Gloves, Hearing Protection, Hard Hats, or Life Jackets
How much does this job require wearing common protective or safety equipment such as safety shoes, glasses, gloves, hard hats or life jackets?
Face-to-Face Discussions
How often do you have to have face-to-face discussions with individuals or teams in this job?
Exposed to Contaminants
How often does this job require working exposed to contaminants (such as pollutants, gases, dust or odors)?
Outdoors, Exposed to Weather
How often does this job require working outdoors, exposed to all weather conditions?
Exposed to Hazardous Conditions
How often does this job require exposure to hazardous conditions?
Freedom to Make Decisions
How much decision making freedom, without supervision, does the job offer?
Spend Time Using Your Hands to Handle, Control, or Feel Objects, Tools, or Controls
How much does this job require using your hands to handle, control, or feel objects, tools or controls?
In an Enclosed Vehicle or Equipment
How often does this job require working in a closed vehicle or equipment (e.g., car)?
Indoors, Not Environmentally Controlled
How often does this job require working indoors in non-controlled environmental conditions (e.g., warehouse without heat)?
Interests
Realistic
Realistic occupations frequently involve work activities that include practical, hands-on problems and solutions. They often deal with plants, animals, and real-world materials like wood, tools, and machinery. Many of the occupations require working outside, and do not involve a lot of paperwork or working closely with others.
Enterprising
Enterprising occupations frequently involve starting up and carrying out projects. These occupations can involve leading people and making many decisions. Sometimes they require risk taking and often deal with business.
Conventional
Conventional occupations frequently involve following set procedures and routines. These occupations can include working with data and details more than with ideas. Usually there is a clear line of authority to follow.
Investigative
Investigative occupations frequently involve working with ideas, and require an extensive amount of thinking. These occupations can involve searching for facts and figuring out problems mentally.
Artistic
Artistic occupations frequently involve working with forms, designs and patterns. They often require self-expression and the work can be done without following a clear set of rules.
Social
Social occupations frequently involve working with, communicating with, and teaching people. These occupations often involve helping or providing service to others.
Work Style
Dependability
Job requires being reliable, responsible, and dependable, and fulfilling obligations.
Integrity
Job requires being honest and ethical.
Attention to Detail
Job requires being careful about detail and thorough in completing work tasks.
Analytical Thinking
Job requires analyzing information and using logic to address work-related issues and problems.
Cooperation
Job requires being pleasant with others on the job and displaying a good-natured, cooperative attitude.
Persistence
Job requires persistence in the face of obstacles.
Self Control
Job requires maintaining composure, keeping emotions in check, controlling anger, and avoiding aggressive behavior, even in very difficult situations.
Independence
Job requires developing one's own ways of doing things, guiding oneself with little or no supervision, and depending on oneself to get things done.
Stress Tolerance
Job requires accepting criticism and dealing calmly and effectively with high stress situations.
Initiative
Job requires a willingness to take on responsibilities and challenges.
Work Values
Independence
Occupations that satisfy this work value allow employees to work on their own and make decisions. Corresponding needs are Creativity, Responsibility and Autonomy.
Support
Occupations that satisfy this work value offer supportive management that stands behind employees. Corresponding needs are Company Policies, Supervision: Human Relations and Supervision: Technical.
Relationships
Occupations that satisfy this work value allow employees to provide service to others and work with co-workers in a friendly non-competitive environment. Corresponding needs are Co-workers, Moral Values and Social Service.
Working Conditions
Occupations that satisfy this work value offer job security and good working conditions. Corresponding needs are Activity, Compensation, Independence, Security, Variety and Working Conditions.
Achievement
Occupations that satisfy this work value are results oriented and allow employees to use their strongest abilities, giving them a feeling of accomplishment. Corresponding needs are Ability Utilization and Achievement.
Recognition
Occupations that satisfy this work value offer advancement, potential for leadership, and are often considered prestigious. Corresponding needs are Advancement, Authority, Recognition and Social Status.
