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Hvac Ii

Fairfax County Government

This is a Contract position in Annandale, NJ posted November 20, 2021.

The HVAC II serves as a lead HVAC mater-level mechanic, performing and assisting other mechanics in diagnosing and repairing HVAC equipment with complex, unusual and or very difficult problems; and performs related work as required. The employee will work in concert with other HVAC mechanics and trades to perform a full range of HVAC assignments for projects on County properties as required for routine and preventative maintenance. The employee will utilize a wide range of tools and other equipment as used in the HVAC trade. The employee will provide customer service with courtesy, respect and attention to detail, work cooperatively with staff, and assures that work is completed in accordance with agency procedures and HVAC codes.

Note: Working hours are from 6:00am to 2:30pm Monday through Friday.

Illustrative Duties
(The illustrative duties listed in this specification are representative of the class but are not an all-inclusive list. A complete list of position duties and unique physical requirements can be found in the position job description.)

Performs the most complex troubleshooting and repair of industrial and commercial mechanical, air conditioning, heating and ventilating equipment and control systems;
Serves as lead mechanic, assisting technicians in diagnosing and repairing equipment with unusual or very difficult problems;
Guides, directs, instructs, inspects, and approves work performed by team members;
Coordinates with the Energy Management Section regarding the overall operation and efficiency of the HVAC Energy Management Systems;
Troubleshoots, repairs, and maintains complex computer-operated direct digital control (DDC), energy management control systems, and related software programs, to include programmable microprocessors, central processing units with multiple analog and digital inputs and outputs, transducers, thermistors, and electric and electronic damper and valve actuators;
Troubleshoots, repairs, and maintains complex mechanical, air conditioning, heating and ventilating equipment such as chillers (including centrifugal, reciprocating and screw types), air conditioners, heat pumps, oil- and gas-fired hot water and steam boilers, oil and gas furnaces, cooling towers, pumps, air handlers, exhaust air units, make- up air units, duct air conveyance systems, variable air volume systems, variable/volume temperature systems, multi-zone units, electrical power and control circuits, time clocks, gas piping, fuel oil supply piping, fossil fuel burning device flue gas systems, condensate pump and drain lines, fan coil units, condensing units, unit heaters, radiant and fan forced heaters, and hydronic heating and cooling systems;
Carries out designated procedures for seasonal start-ups and shut-downs;
Diagnoses and troubleshoots building air comfort and temperature problems; air distribution, air balancing, or stratification problems; and building insulation or vapor barrier deficiencies;
Ensures mechanical systems are running at peak efficiency by inspecting equipment for operating efficiency and safety standards;
Ensures energy management and energy saving strategies are maintained and implemented properly and efficiently;
Monitors and inspects construction projects and contract work to ensure compliance with contractual agreements and with national, state and local code requirements;
Inspects work in progress and upon completion for conformance with prescribed specifications and safety standards;
Maintains records of work performed and parts and materials used;
Maintains records of equipment failures and repairs;
Orders parts for emergency and routine repairs;
Maintains records of equipment operation logs to include temperature, pressures, volts, amps, combustion efficiency reports, safety inspections, and equipment refrigerant records;
Produces HVAC system and efficiency reports that identify system problems or confirm proper operating conditions and recommends repairs or improvements.
Required Knowledge Skills and Abilities
(The knowledge, skills and abilities listed in this specification are representative of the class but are not an all-inclusive list.)

Extensive knowledge of HVAC and related systems to lead diagnostic tasks for complex maintenance and repair activities;
Knowledge of the standard practices, methods, tools, and materials common to the HVAC trade;
Knowledge of the building and fire codes related to work performed in the HVAC trade;
Knowledge of the occupational hazards and safety precaution s of the trade;
Working knowledge of operations and maintenance of buildings and building systems to include heating, ventilation and air conditioning, electrical, plumbing, and energy systems;
Working knowledge of the use of Direct Digital Controls, personal computers, and related software to operate systems, identify problems, and repair equipment;
Ability to read and interpret blueprints, as-built control diagrams, and HVAC equipment electrical schematic control wiring diagrams, and to use these in determining proper system operation,  troubleshooting, and repair of HVAC systems;
Ability to use tools and equipment pertinent to the trade, including combustion efficiency testers, electrical meters, refrigerant charging charts, vacuum pumps, micron gauges, refrigerant electronic leak detectors, infrared temperature testers, pneumatic test equipment, electronic temperature testers, micro amp flame signal testers, gas pressure testers, manometers, air balancing test equipment, water balancing test equipment, electronic refrigerant charging scales, propane torches, map gas torches, oxygen and acetylene torches, refrigerant reclaim and recovery equipment, and hand and power tools;
Ability to lift, stoop, bend, crawl, and work in tiring and uncomfortable positions and from ladders and scaffolds;
Ability to work in uncomfortably hot or cold temperatures.
Employment Standards
MINIMUM QUALIFICATIONS:
Any combination of education, experience, and training equivalent to the following:

High school diploma or GED issued by a state department of education; Plus a two-year technical degree in air conditioning functions such as heating, cooling and ventilating, and five years of progressively responsible air conditioning or HVAC experience; or completion of an apprentice-level vocational training program in air conditioning; plus three years of progressively responsible air conditioning or HVAC experience.

PREFERRED QUALIFICATIONS: Extensive knowledge of HVAC and related systems to lead diagnostic tasks for complex maintenance and repair activities. Working knowledge of operations and maintenance of buildings and building systems to include heating, ventilation and air conditioning, electrical, plumbing, and energy management systems. Working knowledge of the use of Direct Digital Controls, personal computers, and related software to operate systems, identify problems, and repair equipment. Ability to read and interpret blueprints, as-built control diagrams, and HVAC equipment electrical schematic control wiring diagrams, and to use these in determining proper system operation, troubleshooting, and repair of HVAC systems. Ability to use tools and equipment pertinent to the trade, including combustion efficiency testers, electrical meters, refrigerant charging charts, vacuum pumps, micron gauges, refrigerant electronic leak detectors, infrared temperature testers, pneumatic test equipment, electronic temperature testers, micro amp flame signal testers, gas pressure testers, manometers, air balancing test equipment, water balancing test equipment, electronic refrigerant charging scales, propane torches, map gas torches, oxygen and acetylene torches, refrigerant reclaim and recovery equipment, and hand and power tools. Ability to work in uncomfortably hot or cold temperatures. Knowledge of the building and fire codes related to work performed in the HVAC trade and knowledge of the occupational hazards and safety precaution s of the trade.
CERTIFICATES AND LICENSES REQUIRED

Driver’s License (Required)
Journeyman (HVAC) from the State of Virginia (Required)

NECESSARY SPECIAL REQUIREMENTS:
All newly hired employees are required to be fully vaccinated as a condition of employment or obtain approval of a medical or religious exemption prior to their start date.  Proof of an exemption or vaccination status will be required during the pre-employment onboarding process.  New employees who obtain an exemption from the vaccine mandate for medical or religious reasons will still be subject to the weekly testing requirement.  Otherwise, vaccinated employees will complete the attestation online in the first day of employment.

The appointee to this position will be required to complete a criminal background check, child protective services registry check, and driver’s record check to the satisfaction of the employer.

PHYSICAL REQUIREMENTS:
Ability to lift 50 lbs. and climb using ladders or portable lifts. Ability to bend, twist, turn, and stoop. Ability to spend extended periods of time standing and working in cramped locations. All duties may be performed with or without reasonable accommodations.

SELECTION PROCEDURE:
Panel interview; may include exercise.

Fairfax County Government prohibits discrimination on the basis of race, color, religion, national origin, sex, pregnancy, childbirth or related medical conditions, age, marital status, disability, sexual orientation, gender identity, genetics, political affiliation, or military status in the recruitment, selection, and hiring of its workforce.

Reasonable accommodations are available to persons with disabilities during application and/or interview processes per the Americans with Disabilities Act. Contact 703-324-4900 for assistance. TTY 703-222-7314. EEO/AA/TTY.

Type: Full-time.