Class Code: 08323
88323
IOWA DEPARTMENT OF ADMINISTRATIVE SERVICES –
HUMAN RESOURCES
HVAC TECHNICIAN
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.
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, and low pressure steam boiler 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.
Knowledge of HVAC mechanical, electrical, plumbing,
pneumatic, and electronic trade practices and procedures.
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 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 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 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. Exhibits honesty and
integrity. Refrains from theft-related,
dishonest or unethical behavior.
Works and communicates with
internal and external clients and customers to meet their needs in a polite,
courteous, and cooperative manner.
Committed to quality service.
Displays a high level of
initiative, effort and commitment towards completing assignments
efficiently. Works with minimal
supervision. Demonstrates responsible
behavior and attention to detail.
Responds appropriately to
supervision. Follows policy and
cooperates with supervisors.
Aligns behavior with the
needs, priorities and goals of the organization.
Encourages and facilitates
cooperation, pride, trust, and group identity.
Fosters commitment and team spirit.
Expresses information to
individuals or groups effectively, taking into account the audience and nature
of the information. Listens to others
and responds appropriately.
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 one year of post high school education in HVAC for
each year of the required experience to a maximum substitution of two years.
Must
possess a valid Iowa Drivers License.
Must be able to obtain Class B Commercial Drivers
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 operators permits as necessary.
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: 5/07 DF