Class Code: 08323
88323
IOWA DEPARTMENT OF ADMINISTRATIVE SERVICES ▼
HUMAN RESOURCES
HVAC TECHNICIAN
DEFINITION |
Performs advanced journey level mechanical,
electrical, plumbing, pneumatic, and electronic work in the installation,
maintenance, repair, and operation of air conditioning, ventilation, heating,
boilers, refrigeration, and building automated systems. Performs this same type of work on ancillary
equipment and systems.
|
The Work Examples and Competencies
listed are for illustrative purposes only and not intended to be the primary
basis for position classification decisions. |
WORK EXAMPLES |
Installs, maintains, operates and repairs a wide
variety of heating/distribution systems (e.g., gas central heat forced air
ducted, gas fired radiant tube heat, electric powered radiant panel heat,
hydronic radiant heating, electric radiant heat, packaged terminal units, heat
pumps, low pressure steam boiler systems, and LEED (Leadership in Energy and
Environmental Design systems) air conditioning systems (e.g., air conditioners,
chillers, packaged terminal units, and window units) and refrigeration units
(e.g., built-up coolers and freezers, domestic appliances, ice making machines,
and commercial systems).
Conducts routine inspections of air conditioning, heating/distribution
and refrigeration systems/equipment to ensure proper operation according to
specifications/trade standards and services; inspects building and makes
calculations to determine proper size of air conditioning, heating, and ducting
systems; draws working sketches for duct layout and other work and installs
ductwork for air conditioning/heating distribution systems.
Performs preventative
maintenance checks on boilers and services; repairs boilers, does off season
maintenance, maintains operator’s log and prepares boilers for annual
inspections; repairs air conditioning systems/equipment according to
manufacturer’s equipment manual specifications and accepted trade practices.
Conducts tests/diagnostic procedures
on building automated systems using graphical user interface programs and repairs
system components (e.g., electrical to pneumatic transducers, pneumatic and
electrical actuation of dampers, hydraulic, steam, and chilled water valves,
control relays, and pressure and temperature sensors).
Repairs/replaces a wide variety of system components (e.g.,
supply and return side, plenum, trunk and branch ductwork; compressors,
condensers, valves, bearings, shafts, motors, pumps, cooling towers, pneumatic
control systems, temperature and pressure controls, gauges, fans, humidifiers,
refrigerant lines, electrical circuits, computer controls, and electronic
components; fire tubes, baffles, fire boxes, refractory elements, steam pipes,
pump controls, burners; cabinets, condensing units, evaporator, defrosters,
relays, compressor motor, dryers, capillary tubes, ice makers) that make
heating, ventilation, air conditioning, boilers, and refrigeration systems
work.
Reviews construction blueprints/specifications and
compiles estimates of project materials; researches cost of parts/components
and submits purchase orders; keeps a working inventory of parts and maintains
historical maintenance records; safeguards tools/material.
Maintains and repairs
self-contained or central-plant type air conditioning, utilizing a variety of
methods such as mechanical compression, vapor compression or absorption.
Conducts a variety of
audible, visual and mechanical tests and determines the operational status of
air-conditioning equipment and systems, and diagnoses and isolates
malfunctioning components; tests
solder joints and connections for gas leaks, using gauges and/or soap solution.
Inspects oil levels, belts,
insulation, refrigerant levels; observes pressure and
vacuum gauges and adjusts controls to regulate and insure proper operation of
the equipment; services power lead-in and system electrical lines and makes
splices, insulates exposed wires, cleans and lubricates moving parts.
COMPETENCIES REQUIRED |
Knowledge of HVAC mechanical,
electrical, plumbing, pneumatic, and electronic trade practices and procedures.
Knowledge
of the tools, materials, and practices of the electrical trade.
Knowledge of confined space
regulatory procedures and the practical knowledge of working in a confined
space environment.
Knowledge of regulations,
standards, codes, and safety requirements for the HVAC trade.
Knowledge of low pressure steam
boiler operations.
Knowledge of solar energy, fuel
allocation, hydro-electric energy, biomass and energy efficiency technologies, programs,
and procedures.
Knowledge of heat transfer systems, fluid mechanics,
machine design, thermodynamics, and other related fields.
Knowledge in the operation of building automated
systems as it relates to HVAC systems.
Knowledge of the use of tools, equipment, and
techniques normally associated with the HVAC trade.
Ability to troubleshoot and diagnose
problems as they arise in HVAC systems to ensure timely and cost saving repairs;
ability to bring systems and equipment back on line quickly and efficiently.
Ability to manage, operate and repair specialized
equipment in LEED (Leadership in Energy and Environmental Design) certified
buildings and structures.
Ability to visually and
audibly inspect, install, and monitor the various components of HVAC systems by
lifting heavy objects, climbing stairs and ladders, working in high places or
in tight or awkward positions, while effectively using the personal protective
equipment necessary for particular tasks.
Ability to learn how to use forklifts, and other
material handling equipment, as the need arises.
Ability
to learn the structure, design and maintenance of fire protection systems.
Ability to perform basic arithmetic,
including addition, subtraction, multiplication, division, ratios and fraction.
Skill in the use of tools, equipment, and techniques
normally associated with the HVAC trade.
Skill in the installation,
maintenance, repair, and operation of air conditioning, ventilation, heating,
boilers, refrigeration, and knowledge of the utilization of building automated
systems as a diagnostic tool.
Displays high standards of ethical conduct. Refrains
from dishonest behavior.
Works and
communicates with all clients and customers providing quality professional
service.
Displays a high level of initiative, effort, attention to detail and
commitment by completing assignments efficiently with minimal supervision.
Follows policy,
cooperates with supervisors and aligns behavior with the goals of the
organization.
Fosters and
facilitates cooperation, pride, trust, group identity and team spirit
throughout the organization.
Exchanges information with individuals or groups effectively by listening and responding appropriately.
EDUCATION, EXPERIENCE, AND SPECIAL REQUIREMENTS |
Experience equal to five
years of full-time work in the installation, maintenance, repair and operation
of heating, ventilation, air conditioning, boilers, refrigeration, ancillary
equipment, and building automated systems related to HVAC;
OR
an equivalent combination of education and
experience, substituting 30 semester hours of accredited post high
school education in HVAC for each year of the required experience to a maximum
substitution of two years.
SPECIAL REQUIREMENTS
Within a period of time as
determined by the appointing authority, persons in this class may be required
to obtain a license to perform electrical work in accordance with Chapter 103,
Iowa Code.
Within a period of time as determined by the
appointing authority, certain employees in this class may be required to obtain
a Fire Sprinkler Installer and Maintenance License in accordance with Chapter
100D, Iowa Code.
Must
possess a valid driver’s license.
Must be able to obtain Class B
commercial driver’s license.
Must be able to obtain
certifications as required by regulatory authorities pertaining to HVAC,
boilers, and refrigeration.
Must be capable of obtaining
forklift and other material handling equipment operator’s permits as necessary.
SELECTIVE
CERTIFICATION
For certain designated positions, the Appointing
Authority, with Iowa Department of Administrative Services-Human Resources
Enterprise approval, may selectively request those applicants possessing a
minimum of twelve semester hours of education or six months of experience or a
combination thereof in one of the following areas:
187 energy
264 heating,
ventilation, and air conditioning engineering
Applicants desiring to be considered for these
positions should be sure to list applicable course work and experience on the
application.
NOTE |
Must be willing to work weekends and after hours on a rotational basis performing boiler operations and must be
willing to respond to alarm pager on weekends and after hours on a rotational
basis.
Effective
Date: 12/10 BR