Commercial Service Technician IV - HVAC

Overview

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. We invest in training, career development, and a culture built on trust and servant leadership.

We hire and grow people based on skill, potential, and integrity — never labels. We value diverse backgrounds and welcome Partners of all races, colors, religions, sexes, gender identities or expressions, sexual orientations, ages, abilities, military service, and more, focusing on how we work together to build excellence.

Join a growing team where your skills matter, and your future is built to last.

• Diagnose HVAC system performance through observation, testing, and setup based on trade/position and equipment type/size: split systems up to 120 tons; mini split systems; 3 tons/multizone; VRV heat pump/recovery; RTUs up to 150+ tons; WSHP up to 120 tons; self-contained systems; CRAC units; air/water cooled chillers; air-side components such as AHUs, EFs, pumps, and piping.
• Coordinate work processes on large projects, ensuring timely completion and adherence to project specifications and deadlines.
• Perform disassembly and reassembly of commercial and residential equipment for troubleshooting and planned maintenance per service agreements, ensuring optimal system performance.
• Proficiently operate a range of hand tools, power tools, gauges, and measuring equipment to diagnose and maintain HVAC systems effectively.
• Successfully complete service contracts, quoted projects, and respond to demand service calls promptly and efficiently as per company directives.
• Develop long-term relationships with customers and explain work performed to the customer's satisfaction.
• Communicate and document project status to all project stakeholders.
• Serve as a lead and front-line resource to service technicians through technical support.
• Coordinate the work of subcontractors, and train and provide guidance to technicians.
• Purchase materials and issue purchase order numbers to suppliers.
• Safely drive a motor vehicle and trailer, follow the company vehicle safety policy, and adhere to all safety requirements.
• Maintain equipment, tools, and inventory stock on the service vehicle.

• Minimum of 5+ years of relevant HVAC Service experience.
• Must possess required registrations, professional licenses, or certifications as required by the position.
• Advanced knowledge of service processes, techniques, and codes is required.
• Knowledge of brand-specific controls (Siemens, Johnson Controls, Distec).
• Proficient in reading and interpreting complex schematics and prints.
• Able to work as a self-managed individual with professional demeanor and strong interpersonal, written, and oral communication skills.
• HVAC Unitary skills: split systems up to 120 tons, mini-split systems up to 3 tons, VRV/VRH, rooftop units up to 150+ tons, water-source heat pumps up to 120 tons, self-contained systems (water-cooled and air-cooled) with remote condenser and CRAC units.
• HVAC Chiller skills:
  Air-cooled chillers (scroll/reciprocating/screw with VFD/Magnetic), water-cooled chillers (scroll/reciprocating/screw with VFD/Magnetic), and centrifugal chiller theory.
• Airside skills: VAV boxes, AHU operation and control valve operation; exhaust fans and related equipment.
• Pumps and Piping Systems skills: pump configurations, flow control, and piping components such as strainers and backflow devices.

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