HVAC Commercial Start-up Technician

Comfort Systems USA

About The Position

Comfort Systems USA Mid South is a leading mechanical services company specializing in heating, ventilation, air conditioning, and plumbing services for commercial, industrial, and institutional clients. With a focus on safety, quality, and innovation, we integrate planning, engineering, and implementation processes to meet the complex needs of our customers. Our team is dedicated to delivering high-performance mechanical systems and services while fostering long-term relationships with our clients through collaborative and cost-effective solutions. Position Description: The HVAC Start-Up Technician will play a critical role in supporting commercial construction projects by conducting pre-functional inspections, system start-ups, diagnostics, and warranty-period service on commercial HVAC equipment. This role requires advanced technical knowledge of chillers, boilers, air handlers, VRF systems, refrigeration components, and HVAC control sequences. The HVAC Start-Up Technician will review equipment submittals, interpret wiring diagrams, follow manufacturer installation and start-up procedures, and ensure systems are properly commissioned. Responsibilities also include completing detailed documentation, troubleshooting issues, assisting installation teams, and working closely with commissioning agents to ensure all systems perform as designed. This is an excellent opportunity for a skilled technician who values precision, quality, and professional growth within a respected and stable organization.

Requirements

Minimum of four (4) years of experience in commercial HVAC equipment installation and start-up
Strong understanding of HVAC system operations, refrigeration circuits, and equipment sequence of operations
Ability to read and interpret wiring diagrams, electrical schematics, blueprints, submittals, and manufacturer manuals
Proficiency with Microsoft Office and/or iPad-based field reporting tools
Strong communication and customer service skills
Ability to troubleshoot complex mechanical, electrical, and control-related issues
Strong organizational and documentation skills
Commitment to safety and adherence to company policies and procedures

Nice To Haves

VRF installation and start-up experience preferred

Responsibilities

Support field operations by ensuring proper execution of start-up procedures and accurate documentation for all assigned HVAC systems.
Perform pre-functional inspections and complete start-up checklists for chillers, boilers, air handlers, VRF units, split systems, and other commercial HVAC equipment
Conduct diagnostics and make necessary repairs on refrigeration systems during start-up and warranty periods
Interpret control schematics, high-voltage wiring diagrams, and manufacturer-provided installation documentation
Assist installation teams in preparing field-installed devices and components prior to start-up
Troubleshoot equipment performance, controls issues, and operational deficiencies
Work closely with commissioning agents and complete all commissioning documentation
Document inspection results, start-up data, identified issues, and corrective actions
Provide accurate and timely start-up reports and equipment documentation to project managers, commissioning teams, and internal stakeholders.
Follow and enforce all company safety procedures
Ensure all start-up activities meet project specifications, manufacturer requirements, and commissioning standards
Maintain organized, accurate documentation for all systems and field activities

Benefits

Competitive pay and incentives
Medical, Vision, and Dental insurance
Paid holidays and flexible, generous PTO – 2 weeks after 90 days, with the opportunity to gain up to 5 weeks
401(k) Plan with multiple investment options
Training and Development Programs
Company-paid Employee Assistance Program
Employee discount programs
Company-paid and voluntary life insurance
Company-paid and voluntary accidental death & dismemberment (AD&D)
Company-paid short-term disability and voluntary long-term disability
Healthcare reimbursement account and dependent care reimbursement account
Health savings account with company contributions
Vehicle discount purchase programs