to top

Commercial HVAC hot/cold Technician

Carlson's Heating and Cooling

Sioux Falls, SD

Posted/Updated: Today

Job Description

A Commercial HVAC Technician is a skilled tradesperson who installs, maintains, and repairs heating, ventilation, and air conditioning systems in commercial and industrial buildings — such as offices, hospitals, schools, and factories.

Core Responsibilities

  • Installation: Set up HVAC systems (rooftop units, chillers, boilers, air handlers, VRF systems, etc.) according to blueprints and specifications.

  • Maintenance: Perform routine inspections, clean coils and filters, check refrigerant levels, test electrical components, and calibrate controls.

  • Diagnostics & Repair: Troubleshoot and repair system malfunctions — including compressors, motors, thermostats, and control systems.

  • System Optimization: Ensure systems run efficiently to reduce energy costs and meet environmental standards.

  • Documentation: Maintain service records, logs, and reports for clients and supervisors.

  • Safety Compliance: Follow OSHA, EPA, and local building codes (including handling of refrigerants under Section 608 certification).


?? Skills & Knowledge

  • Strong understanding of electrical systems, refrigeration cycles, and airflow dynamics.

  • Ability to read and interpret blueprints, wiring diagrams, and schematics.

  • Experience with Building Automation Systems (BAS) and Energy Management Systems (EMS).

  • Familiarity with commercial-grade equipment: chillers, cooling towers, VAV systems, RTUs, etc.

  • Competence in brazing, pipefitting, and ductwork.


?? Qualifications

  • HVAC technical school diploma or associate degree.

  • EPA 608 Certification (required for refrigerant handling).

  • NATE, HVAC Excellence, or manufacturer-specific certifications are a plus.

  • Typically 3–5 years of field experience for full commercial-level competency.

Carlson's Heating and Cooling
29312 467th Ave
Centerville, AL 57014