Control Technician

Comfort Systems USA; Birmingham (AL); On-site; USD 55,000 - 75,000; Full time

Job summary

Comfort Systems USA is seeking a skilled technician to install, wire, terminate, and commission HVAC control systems across commercial projects. You will read blueprints, control diagrams, and sequences of operation to ensure proper startup and verification of systems.

The role requires troubleshooting BAS networks, calibrating sensors, and resolving BACnet/Modbus communication issues. Candidates should follow safety policies and work with project teams to deliver quality outcomes.

Qualifications

• Experience installing, wiring, and commissioning HVAC control systems.
• Ability to read blueprints, control diagrams, wiring schematics, and sequences of operation.
• Proven troubleshooting skills for BAS networks and field devices.

Responsibilities

• Install, wire, terminate, and commission HVAC control systems, including controllers, sensors, actuators, thermostats, and field devices.
• Install low-voltage control wiring, networks, and raceway systems per specs and codes.
• Read and interpret blueprints, control diagrams, wiring schematics, sequences of operation, and drawings.
• Perform startup, testing, commissioning, and verification of HVAC control systems.
• Troubleshoot and repair building automation systems, controllers, field devices, networks, and interfaces.
• Calibrate sensors and transmitters to ensure accurate operation.
• Diagnose and resolve BAS communication issues with BACnet, Modbus, and other protocols.

Skills

HVAC control systems

BAS & field wiring

BACnet

Modbus

Reading blueprints

Troubleshooting

Safety compliance

Tools

BACnet protocols

Modbus protocols

Testing equipment

Job description

• Install, wire, terminate, and commission HVAC control systems, including controllers, sensors, actuators, thermostats, and field devices.
• Install low-voltage control wiring, communication networks, and raceway systems in accordance with project specifications and applicable codes.
• Read and interpret blueprints, control diagrams, wiring schematics, sequences of operation, and construction drawings.
• Perform startup, testing, commissioning, and verification of HVAC control systems.
• Troubleshoot and repair building automation systems, controllers, field devices, communication networks, and HVAC equipment interfaces.
• Calibrate sensors, transmitters, and other control devices to ensure accurate system operation.
• Diagnose and resolve BAS communication issues involving BACnet, Modbus, and other protocols.
• Utilize diagnostic tools, testing equipment, and software applications to identify and correct system deficiencies.
• Document service activities, commissioning reports, system modifications, and as-built drawings.
• Coordinate with project managers, service technicians, subcontractors, equipment suppliers, and customers to ensure successful project completion.
• Maintain accurate records of work performed, materials used, and system changes.
• Follow all company safety policies, procedures, and jobsite requirements.
• Operate lifts, ladders, and other equipment safely and responsibly.
• Participate in after-hours service calls, emergency response, and scheduled maintenance activities as required.
• Maintain company-issued tools, equipment, technology, and vehicles in good working condition.
• Provide professional customer service and represent the company in a positive manner at all times.