Heating Ventilation and Air Conditioner or HVAC is usually found in big buildings. The HVAC system needs to be optimized because it functions to protect tools and personal convenience. When it is damaged, HVAC should be immediately repaired so that the system runs smoothly again. Therefore, you need HVAC service and repair that hire a professional, experienced HVAC technician for maintenance and repair. But, what does an HVAC actually do?

The Work of HVAC Technicians

An HVAC technician has qualifications to handle anything related to maintenance, installation, and system repairment. A professional HVAC service should have an official certificate to show the required knowledge and skills related to HVAC. Generally, the work of an HVAC technician includes:

  1. Learning blueprints and other specifications.
  2. Testing pipes, tubing joints, or leak connections.
  3. Testing electrical circuits or components for continuity.
  4. Repairing or replacing damaged tools or components.
  5. Improving the performance of the HVAC system by replacing the filter, cleaning the lines, or filling refrigerant.
  6. Installing, connecting, or adjusting the thermostat, humidity, or timer.
  7. Connecting HVAC tools to the fuel, refrigerant, or fuel source.
  8. Adjusting the control system to the balance system.
  9. Assembling, installing, and positioning HVAC equipment.
  10. Lay outing, designing, and installing low-voltage power cables.
  11. Cutting or drilling holes in building structures.
  12. Recording and reporting the time, materials, mistakes, disadvantages, and other events.


In the installation stage, certified HVAC service and repair will usually install units based on specifications given by an architect or architectural engineer. Before installing, HVAC service and repair CA will complete necessary calculations in order to determine the appropriate HVAC system. Once the unit is installed, they will test the piping and connection systems and connect the HVAC unit to a work line or distribution system. A certified technician will also charge the system and refrigerant.

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When it comes to maintenance, a certified HVAC technician will ensure the efficiency, ventilation, heating system, and cooler. An HVAC unit requires regular maintenance, usually twice a year. The maintenance performed by the technician includes thermostat testing, blower fan testing and cleaning, coolant level checking the cooling system, and system operation.


In this stage, HVAC service and repair will handle issues related to the HVAC unit, thermostat, and other controls, as well as the air handling system, compressor, and refrigerant level. When it comes to ducting, they will complete assembly and installation of ducts that distribute hot or cold air from the HVAC system.