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About the Role
The Service Technician III – HVAC (Senior Level) serves as a front-line resource, offering technical support, guidance, and training to other service technicians. This role is responsible for performing inspections, testing, repairs, servicing, and planned maintenance of HVAC systems to ensure optimal performance and reliability across commercial environments.
Responsibilities
- Diagnoses HVAC system performance through observation, testing and setup as required by trade/position and type/size of equipment.
- Coordinates work processes on large projects, demonstrating hands-on expertise by disassembling and reassembling commercial and residential equipment for troubleshooting and maintenance.
- Proficiently utilizes hand tools, power tools, gauges, and measuring equipment.
- Completes service contracts, quoted projects, and demand service calls as directed.
- Establishes lasting customer relationships, ensures customer satisfaction by explaining work performed, and maintains clear communication with all project stakeholders.
- Serves as a front-line resource to service technicians through technical support.
- Coordinates the work of subcontractors, and trains and provides guidance to technicians.
- Coordinates multi-tech service calls.
- Participates in technician on-call-stand-by rotation.
- Purchases materials and issues purchase order numbers to suppliers.
- Safely drives a motor vehicle and trailer, follows requirements of company vehicle driving policy and adheres to all company safety requirements.
- Maintains equipment, tools, and inventory stock on service vehicle.
Requirements
- High School Diploma or GED required.
- Preference for a two-year technical degree in a related field.
- Must possess required registrations, professional licenses, and/or certifications.
- 5-7 years of experience.
- Proficiency in split systems (all brands up to 120 tons), mini-split systems (up to 3-ton heat pump and MultiZone), VRV Heat Pump and VRV Heat Recovery, roof top units (all brands up to 150+ tons), water source heat pumps (all brands up to 120 tons), self-contained systems (water-cooled and air-cooled with remote condenser), and CRAC units (Leibert/data-aire/Stultz).
- Air-cooled chillers – Scroll/reciprocating, Screw, Screw with VFD and Magnetic.
- Water Cooled Chiller – Scroll/reciprocating, Screw, Variable Speed Screw and Magnetic.
- Centrifugal Chiller Theory.
- Fan Powered Box, VAV Box, VFD Theory.
- Air Handler: Theory of AHU operation and Theory of control valve operation.
- Exhaust fans: Centrifugal Up blast Roof Fans, Centrifugal Inline Fan and Vane Axial High Pressure Fans.
- Pumps -- ability to identify all components, pump configurations and chiller configurations.
- Flow Control – automatic/circuit setter.
- Piping – strainers and backflow devices.
- Knowledge of brand specific controls.
- Advanced knowledge of service processes, techniques and codes is required.
- Professional demeanor, solid interpersonal skills with good written and oral communication capability.
- Demonstrates strong business ethics at all times.
Skills
- HVAC Unitary skills
- HVAC Chiller skills
- HVAC Airside skills
- Pumps and Piping Systems skills
- Brand specific controls
- Service processes
- Service techniques
- Codes
- Interpersonal skills
- Written communication
- Oral communication
- Business ethics
Location
- Texas
- Southwest
Work Type
- Full-time
Experience Level
- 5-7 years of experience
- Senior Level
Education Level
- High School Diploma or GED
- Two-year technical degree
Benefits
- Employee-owned company
- FORTUNE Magazine "100 Best Company to Work For"
- Top training
- Career development
About the Company
- Founded in 1946, TDIndustries is a premier, employee-owned Mechanical, Electrical, and Plumbing (MEP) company delivering full-lifecycle building solutions—from design and construction to service and facilities maintenance.
- We power critical environments like hospitals, schools, data centers, stadiums, and commercial buildings across Texas and the Southwest.
- Our Partners (employees) are the core of our success.
- As an employee-owned company, you have a voice, a stake, and a clear path to grow.
- Recognized by FORTUNE Magazine as a "100 Best Company to Work For," we invest in top training, career development, and a culture built on trust and servant leadership.
- Join a growing team where your skills matter, and your future is built to last.
- At TDIndustries, we believe opportunity should be built — and shared — by all.
- Whether you work with tools or technology, in the field or the office, we hire and grow people based on skill, potential, and integrity — never labels.
- We value the diverse paths that bring people to our team and welcome Partners of all backgrounds, including differences in race, color, religion, sex, gender identity or expression, sexual orientation, age, ability, military service, and more.
- What matters most is how we work together to build excellence.
Equal Opportunity
- We value the diverse paths that bring people to our team and welcome Partners of all backgrounds, including differences in race, color, religion, sex, gender identity or expression, sexual orientation, age, ability, military service, and more.