ACIS
ACIS is an on-call air conditioning contractor and HVAC Service Company in St, Mckinney, Texas.
- Open roles
- 10
- New role every
- ~7.5 days
Company signals
Score: 75Job facts
- Location
- Pflugerville, Texas, United States of America
- Posted
- May 07, 2026
Senior Commercial HVAC Tech. III
at ACIS
POSITION SUMMARY
The Technician III is a senior-level commercial HVAC technician responsible for expert-level service, maintenance, troubleshooting, and repair of complex HVAC systems, including centrifugal chillers, large tonnage packaged units, built-up DX split systems, and both air- and water-cooled scroll, reciprocating, and screw chillers. This role requires a high degree of technical skill and professionalism, with the ability to represent the company through courteous and tactful communication with a diverse client base.
ESSENTIAL DUTIES AND RESPONSIBILITIES
The essential functions include, but are not limited to the following:
• Maintain, troubleshoot, diagnose, and repair commercial HVAC equipment, including but not limited to the following:
o 40 – 100-ton package units
o WSHP
o VAV and FPB
o VRF systems o Centrifugal chillers
o Pumps o Air-cooled and water-cooled chillers
o Cooling towers
o Self-contained units
o Variable frequency drives
o Complex electrical systems
- Ensure a safe and clean work environment by adhering to all safety protocols and consistently using required personal protective equipment (PPE)
- Maintain a clean, well-organized, and fully stocked company vehicle to support efficient service delivery
- Properly manage, coordinate, and maintain company-issued tools, equipment, and inventory
- Lead and manage assigned service and maintenance projects, working closely with Account Managers and Service Coordinators to schedule labor, parts, and subcontractors as needed
- Plan and communicate daily schedule and work updates in coordination with the Service Coordinator
- Accurately complete and submit timecards, service tickets, inspection reports, and other required documentation in a timely manner
- Collaborate with other team members, including Service Coordinators and Service Supervisors, to proactively anticipate and develop solutions to client problems
- Clearly communicate diagnostics, recommended actions, and solutions to clients and internal teams both verbally and in writing
- Perform other related duties and responsibilities as assigned to support department and company goals