1 Start -Up Technician, HVAC Job Overview : The Construction Start -Up Technician will be responsible for assisting with the installation, start -up, diagnostics, maintenance, and repair of various commercial HVAC systems. This role requires strong technical skills, troubleshooting expertise, and the ability to work independently or as part of a team in a commercial construction environment . Responsibilities: • Perform system start -ups, observe operation, and interpret gauges and instruments to ensure proper functionality. • Adjust mechanisms such as valves, controls, and pumps to regulate fluid levels, pressure, and system temperatures. • Diagnose, service, and repair a variety of commercial HVAC equipment, including: o DX equipment o Water source heat pumps o Gas-fired and electric heating systems o Direct expansion (DX) air conditioning systems o Low-voltage temperature control systems o Air handling equipment and duct systems o Hydronic cooling and heating systems o Chilled and hot water systems and boilers • Conduct preventive maintenance, including cleaning condenser and evaporator coils, fans, and ductwork, and replacing air filters. • Identify and replace defective or worn parts to maintain proper system operation. • Assist with air balancing and assess static pressure in HVAC systems. Qualifications/Requirement s: • Minimum 1 year of relevant commercial HVAC experience. • EPA Universal Certification preferred. • Strong understanding of refrigeration principles, system operations, and troubleshooting techniques. • Experience with air balancing and static pressure diagnostics is a plus. • Familiarity with chilled water, hot water systems, and boiler operations. • Ability to work independently and effectively in a fast -paced environment. • OSHA 10 or other relevant safety certification is preferred. Work environment is field based . Must be able to work on ladders, lifts, or rooftops to access equipment as needed. Must be able to lift hea vy equipment and work in elevated areas. Requires walking, standing, climbing ladders, and working at varying heights and outdoor temperatures. Ability to squat, bend, climb, stoop and comfortably lift 75 lbs. May require travel between project sites. Additional Requirement: Ability to pass a full background screening that includes a criminal background, drug test, driving record, and physical ability test. 2 Join our team and contribute to the success of our innovative and high impact projects. We offer competitive compensation/benefits package , career growth/advancement, and a supportive work environment with a collaborative innovative team. Apply today to be part of our dynamic t eam! Comfort Systems USA, Inc., together with its subsidiaries, is an equal opportunity employer in all aspects of employment and prohibits discrimination and harassment of any type to all individuals regardless of race, color, religion, sex, sexual orientation, national origin, age, disability, veteran status, genetic information, or any other characteristic protected by federal, state or local laws. Job Type: Full -time Benefits: • 401(k) matching • Medical/ Dental /Vision insurance • Health savings account (HSA) • Life insurance • Short Term/Long Term Disability • Paid time off (PTO) /Holiday Pay Work Location: In person / On -Site