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Basic
Qualifications:
Experience
 Five
years Commercial HVAC experience relevant to the job description,
physical effort, and working conditions are required (previous positions
held which only involved typical household heating and cooling systems
do not count towards this experience requirement).
Journeyman
level knowledge of the principles and theories of air
conditioning and refrigeration required.
Electrical
skills include up to 480V three phase AC/DC circuit and
advanced troubleshooting skills required.
Knowledge
of closed loop chilled and hot water system chemical
treatment is required.
Individual
is required to demonstrate his/her ability to lift and or carry
equipment weighing up to 50 pounds for at least 30 feet.
An
experience level field test and silver solder test to verify
qualifications
will be required.
Fundamental
knowledge of DDC operations required.
One
year experience required in the maintenance and repair of
controllers, variable frequency drives, sequencing and A/C associated
electronics systems/components.
A
thorough understanding of safety procedures related to HVAC systems
and lock-out/tag-out procedures is required.
Education
High
School diploma or equivalent is required.
Licenses and Certifications
State
of Florida Class "E" driver's license or equivalent is required.
EPA
Refrigerant “Universal” Certification required.
Trained
and/or licensed through a formal apprenticeship program or
through formal, verifiable training (such as vocational/technical
school, company formal training, or military training) and related
experience required.
A
physical exam and respirator fit test will be required within 30 days
of the hire date (company will arrange).
Job
Description:
Troubleshoot
defects of HVAC systems to determine the type and extent
of the repair needed from oral instructions, blueprints, drawings, and
work orders selecting the proper tools and testing devises to accomplish
the repairs according to accepted trade practices.
Apply
principles and theories of air conditioning and refrigeration such as;
the refrigeration cycle, heat transfer laws, the use of refrigerant
tables, properties of several refrigerants, and how to calculate
airflow.
Make
visual, audible, mechanical checks, and repairs on a variety of
domestic and commercial refrigeration and air conditioning units to
maintain the proper temperature of conditioned spaces, the proper
operation of different parts of the refrigeration cycle, proper oil
levels, unusual noises, overheated bearings, loose connections, faulty
insulation, frayed or loose belts, leaky gaskets or seals, worn pulleys,
duct work and insulation deficiencies, servicing, make splices, insulate
exposed wires, replace fuses, and other similar defects or repairs.
Perform
repairs of different types of equipment to include but are not limited
to; heating (natural gas, steam, hot water, heat pump) and cooling (
refrigerant or chilled water) of HVAC units such as; burner assemblies,
combustion chambers, thermostats, chillers, air handling units,
condensers, thru-wall type units, window units, packaged units,
self-contained units, evaporative units, fan coil units, refrigerators,
deep freezers, ice cream machines, refrigerated display cases/trays,
milk dispensers, walk-in/reach-in coolers/freezers, ice machines, water
coolers, air dryers, ventilation fans, cooling towers, compressors
(gear, reciprocating, centrifugal, or rotary pump), motors,
pumps/impellers, valves (pneumatic, electric, and direct drive),
blowers, fans, dampers, piping, purge units, drip pan drains, piping,
grills/registers, exhaust hoods, temperature controls, wiring,
humidifying/dehumidifying, and other equipment of comparative
complexity.
Locate
and check components that control low side and high side
pressure,
the temperature of the cooling units, the temperatures of the liquid and
suction lines, and the running time of the various mechanisms; must also
be able to check refrigerant levels and service or recover refrigerant
(including R410A) as required.
Check
for gas leaks by visual and audible examination of equipment
components by applying prescribed test procedures.
Replace
major portions of various cooling units, such as compressors,
bearings, heat exchangers, condensers, expansion valves, float and
service valves, thermostats, coils, belt pulleys and tensioners, blower
wheels, refrigeration/defrost controls, relays to protect
overload/overheat conditions, and variable frequency drive assemblies
using knowledge of a variety of commercial and industrial systems.
Use
electrical skills to measure the compressor motor windings
resistance to ground and troubleshoot circuit boards.
Perform
maintenance on air cooled, reciprocating, rotary, and centrifugal
chillers up to 1300 tons, including cooling towers.
Perform
daily, weekly, monthly, quarterly, semi-annual, and annual
periodic
maintenance inspections on all types of HVAC units to include cleaning
units, changing filters, checking/changing belts as needed, and
lubricating moving parts.
Comply
with all OSHA safety regulations and adhere to proper codes
and
standards.
Operate
hoists, holders, and pulleys used when removing heavy units
such as large compressors, condensers, and package units.
Use
Material Safety Data Sheets (MSDS) to identify chemical
characteristics.
Complete
Work Orders daily and accurately.
Complete
daily log sheets of refrigerant removal and servicing of HVAC
units.
Initiate
material requisitions to order parts/materials needed for repairs.
Assist
with material and labor estimates.
Work
also involves other duties as assigned, including compliance with
the provisions of the Collective Bargaining Agreement (CBA) and Employee
Handbook.
Physical
Effort:
HVAC
craftsmen often lift, carry, and handle materials, tools and
equipment weighing up to 50 pounds for at least 30 feet and extended
periods.
They
occasionally work in cramped and inconvenient surroundings requiring
manipulation of equipment in awkward positions for prolonged periods.
Work
frequently requires standing, stooping, bending, kneeling, climbing,
and working in tiring and uncomfortable positions for extended periods.
Must
be able to ascend and descend on ladders of various heights.
Make
repairs and installations from ladders, scaffolding or platforms
where parts of systems worked on are frequently in hard to reach places.
Working
Conditions:
Work
is accomplished both indoors and outdoors, all climates, including
working outside and on top of tall buildings, often exposed to hot sun
for extended periods of time.
Frequently
works in cramped spaces, hot/cold attic spaces, areas with
low overheads, and areas with hot/cold, oily, wet, and dusty surfaces.
Mechanics
are frequently subject to sudden temperature changes when
working on refrigerated equipment such as walk in coolers and freezers.
The
HVAC craftsman is exposed to moving parts and equipment, or
machinery while working in and around HVAC units.
May
be called in for off-hours emergency situations including weekends
and
holidays.
On-Call
Duty rotation required, with company cell phone provided when in
a duty status. Limited work required in asbestos containing areas, with
company training and protective equipment provided.
May
be required to work the second shift.
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