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Engineering Tech III (HVAC) - Fort Sill Oklahoma

PCSI
Ft. Sill, OK Full Time
POSTED ON 2/26/2026 CLOSED ON 4/26/2026

What are the responsibilities and job description for the Engineering Tech III (HVAC) - Fort Sill Oklahoma position at PCSI?

PCSI is looking for an Engineering Technician III (HVAC) at Ft. Sill! Perform maintenance and repair to hydronic and refrigeration systems to include air handling units, DX coil/condensing units, fan coil units, and variable air volume (VAV) units. Maintain, repair, or replace domestic and heating hot water boilers 1,000,000 BTU and below. This position will report to the HVAC Supervisor and is based at Ft. Sill in Lawton. Typical work hours will be Monday-Friday 7:30am-4pm.

PCSI is an AbilityOne employer—as such, individuals and veterans with disabilities may be prioritized based on role. Documentation may be required.   

Benefits Include:

  • Base pay of $22.66/hr. plus $6.10 an hour for health and welfare

Who We Are:

PCSI is a non-profit organization whose mission is to enhance the lives of people with disabilities through employment, advocacy, and partnerships. We vet, prepare, lead, and sustain a skilled workforce that provides top-tier services at job sites across the country. Our areas of expertise are wide and diverse; total facilities maintenance, hospital environmental services, custodial and grounds, disability awareness training, job coaching, and job placement are just a few. We integrate people with disabilities and veterans into meaningful jobs with competitive wages and benefits. Serving people of all abilities in their life’s journey is at the heart of what we do.

What You'll Do as Engineering Tech III (HVAC):

  • Perform maintenance and repair to hydronic and refrigeration systems to include air handling units, DX coil/condensing units, fan coil units, and variable air volume (VAV) units.
  • Maintain, repair, or replace domestic and heating hot water boilers 1,000,000 BTU and below.
  • Maintain, repair, or replace commercial/residential HVAC systems under 25 tons.
  • Follow mechanical code for installing and replacing HVAC systems.
  • Mounts compressor and condenser units on platform or floor using hand tools, following blueprints or engineering specifications. 
  • Fabricates, assembles, and installs ductwork and chassis parts, using portable metalworking tools and welding equipment. 
  • Installs evaporator unit in chassis or in air-duct system, using hand tools. 
  • Cuts and bends tubing to correct length and shape, using cutting/bending equipment/tools. 
  • Cuts and threads pipe, using machine-threading or hand-threading equipment. 
  • Joins tubing or pipes to various refrigerating units by means of sleeves, couplings or unions, and solder joints, using torch, forming complete circuit for refrigerant. 
  • Connects motors, compressors, temperature controls, humidity controls, and circulating ventilation fans to control panels and connects control panels to power source. 
  • Injects small amount of refrigerant into compressor to test systems and adds freon gas to build up prescribed operating pressure. 
  • Observes pressure and vacuum gauges and adjusts controls to insure proper operation. 
  • Tests joints and connections for gas leaks, using gauges or soap and water solution. 
  • Replaces defective breaker controls, thermostats, switches, fuses, and electrical wiring to repair installed units, using electrician’s hand tools and test equipment.  
  • Other duties as assigned.

Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

What You'll Need to Be Successful:

  • High school diploma or GED. 
  • Must have at least two years of recent/relevant HVAC experience in a facility and/or utility maintenance environment and/or formal/vocation training with the ability to perform the assigned duties. 
  • Must possess EPA Universal Certification
  • Must successfully pass pre-employment drug/alcohol screen and background check.
  • Possess valid driver’s license and maintain good driving record.
  • If required, ability to obtain and maintain security clearance and base access to assigned site(s).
  • Must be able to effectively read, write, and speak the English language. 

Knowledge, Skills and Abilities:

  • Regularly required to stand, walk, and climb ladders.  Frequently required to kneel, squat, bend, and reach.
  • Required to be able to lift 50 lbs. up to 10 times per day.
  • Ability to cut, modify, thread, repair, and install steel or copper piping for natural gas or water piping using threading machines, mapp gas, or pro press.
  • Requires ability to use hand tools, power tools, and equipment required for installation, maintenance and repair. 
  • Ability to work as a team member
  • Self-starter, able to work with minimal direction and supervision.
  • Requires working knowledge of related equipment.

Other Requirements:

  •  High school diploma or GED.
  •  Must have at least two years of recent/relevant HVAC experience in a facility and/or utility maintenance environment and/or formal/vocation training with the ability to perform the assigned duties.
  •  Must possess EPA Universal Certification
  •  Must successfully pass pre-employment drug/alcohol screen and background check.
  •  Possess valid driver’s license and maintain good driving record.
  •  If required, ability to obtain and maintain security clearance and base access to assigned site(s).

All veterans and/or persons with all types of disabilities are strongly encouraged to apply!

Salary : $6 - $23

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