Refrigeration & Air Conditioning Technology, 8e - 9

9

Introduction

dehumidifying, ventilating, exhausting, and air cleaning. Heating
equipment may rely on fossils fuels, such as natural gas, liquefied
petroleum, or oil, or may be configured as electric-based or heat
pump systems. The type and number of installations will vary from
one part of the country to another, depending on the climate and
availability of the heat source. The heating equipment may be either
a furnace (which heats air) or a boiler (which heats water). The
boiler heats water and pumps it to the space to be heated, where
one of many types of heat exchangers transfers the heat to the air.
Technicians may specialize in installation or service of equipment, or they may be involved with both. Other technicians
may design installations or work in the sales area. Sales representatives may be in the field selling equipment to contractors,
businesses, or homeowners; others may work in wholesale supply stores. Still other technicians may represent manufacturers,
selling equipment to wholesalers and large contractors.
Many opportunities exist for technicians to be employed
in the industry or by companies owning large buildings.
Technicians may be responsible for the operation of airconditioning equipment, or they may be involved in the service
of this equipment. Opportunities also exist for employment
in servicing household refrigeration and room air conditioners, which would include refrigerators, freezers, and window
or through-the-wall air conditioners. Opportunities are also
available for employment in a field often called transport
refrigeration. This includes servicing refrigeration equipment
on trucks or on large containers hauled by trucks and ships.
Most modern houses and other buildings are constructed
to keep outside air from entering, except through planned
ventilation. Consequently, the same air is circulated through
the building many times. The quality of this air may eventually cause a health problem for people spending many
hours in the building. This indoor air quality (IAQ) presents
another opportunity for employment in the air-conditioning
field. Technicians clean filters and ducts, take air measurements, check ventilation systems, and perform other tasks to
help ensure healthy air quality. Other technicians work for
manufacturers of air-conditioning equipment. These technicians may be employed to assist in equipment design, in the
manufacturing process, or as equipment salespersons.
Following is a list of many career opportunities in the
HVAC/R field:
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Field service technician
Service manager
Field supervisor
Field installer
Journeyman
Project manager
Job foreman
Application engineer
Controls technician
Draftsperson
Contractor
Lab technician

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Inspector
Facilities technician
Instructor
Educational administrator
Inside/outside sales rep
Sales manager
New product developer
Research engineer
Estimator

TECHNICIaN CERTIfICaTIoN
PRoGRaMS
HISToRy
Even though mandatory technician certification programs are
in place today, the EPA originally did not consider them as its
lead option. As a matter of fact, the EPA initially thought private
incentives would ensure that technicians were properly trained
in refrigerant recycling and recovery. The EPA also stated that
it would play an important role through a voluntary technician certification program by recognizing those who provide
and participate in voluntary technician training programs that
meet certain minimum standards. The EPA also thought that
a mandatory certification program would be an administrative
burden. The EPA then requested public comments on a mandatory versus voluntary technician certification program. More
than 18,000 comments were in favor of a mandatory program,
and only 142 were in favor of a voluntary program. Most of
the 18,000 in favor of the mandatory certification program
were major trade organizations and technicians themselves.
Manufacturers of recovery and recycling equipment, along
with environmental organizations, also supported mandatory certification. They believed it would increase compliance
with venting, recovery, and recycling laws and the general safe
handling of refrigerants. The following were reasons given by
those favoring mandatory technician certification:
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Improve refrigerant leak detection techniques
Promote awareness of problems relating to venting, recovery, and recycling of refrigerants
Improve productivity and cost savings through proper
maintenance practices
Ensure environmentally safe service practices
Gain more consumer trust
Receive more liability protection
Ensure that equipment is properly maintained
Educate technicians on how to effectively contain and
conserve refrigerants
Create uniform and enforceable laws
Foster more fair competition in the regulated community

With these comments in mind, the EPA decided that mandatory technician certification would increase fairness by ensuring
that all technicians were complying with today's rules. The EPA



Refrigeration & Air Conditioning Technology, 8e

Table of Contents for the Digital Edition of Refrigeration & Air Conditioning Technology, 8e

Contents
Refrigeration & Air Conditioning Technology, 8e - Cover1
Refrigeration & Air Conditioning Technology, 8e - Cover2
Refrigeration & Air Conditioning Technology, 8e - i
Refrigeration & Air Conditioning Technology, 8e - ii
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Refrigeration & Air Conditioning Technology, 8e - Cover4
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