Aerial view of dozens of white commercial rooftop HVAC condensing units arranged in uniform rows on a large flat commercial or industrial building rooftop

Welcome to SITA

HVAC Air Balancing

The quality of the building environment is a direct result of HVAC system design proper testing, and adjusting.

HVAC Air Balancing

HVAC Air Balancing

Testing and adjusting of building air systems in a prescribed manner will improve equipment operation and verify the correctness of the installation and the engineer’s design. The final result of HVAC system adjusting is to improve comfort and reduce energy costs. The equipment tested in this segment of the process includes supply, return and exhaust fans, air volume control boxes and supply, return and exhaust diffusers.

Bearded male inspector in a blue t-shirt holding a notepad and pen while looking up at exposed wood ceiling beams inside a residential home

Benefits of HVAC Air Balancing:

Benefits of HVAC Air Balancing:

HVAC Air Balancing benefits include: enhanced building performance, lower operating costs, and greater occupant comfort. When properly balanced, HVAC systems will minimize their energy usage, operational costs and ensure building pressurization.

A technician in a dark uniform writing on a clipboard while standing in front of a row of gray electrical control panels
A technician in a dark uniform writing on a clipboard while standing in front of a row of gray electrical control panels

Benefits of HVAC Air Balancing:

HVAC Air Balancing benefits include: enhanced building performance, lower operating costs, and greater occupant comfort. When properly balanced, HVAC systems will minimize their energy usage, operational costs and ensure building pressurization.

Have Any Questions?

Have Any Questions?

We encourage questions and are happy to answer them, whether you are planning a new project or commissioning HVAC systems already in service. You can send your inquiries through our Contact page

5 Tips for HVAC Air Balancing Success:

The HVAC Air Balancing process can be greatly enhanced by following these five recommendations.

  1. Proper start-up of HVAC Equipment.
  2. HVAC controls are complete and fully operational to allow TAB to commence.
  3. New filters are in place at the start of TAB work.
  4. Back draft dampers are functional on exhaust fans.
  5. Outside air ductwork and/or air monitoring stations are properly located as well as the correct duct diameter required to ensure air flow measurement.

The Keys to Duct Traversing:

  • Review duct work to ensure proper inside dimension is used in determining air flow.
  • Proper duct diameters, minimum 8 diameters downstream and 2 diameters upstream.
  • Pitot tube points of measurement, minimum of 16 and a maximum of 64 readings.
  • Use log-Tchebycheff method to determine test points.
ACG AABC Commissioning Group logo
AABC Associated Air Balance Council logo featuring a navy blue circle with three red horizontal stripes and bold blue AABC lettering below on a transparent background
NEBB National Environmental Balancing Bureau logo with bold green and white lettering and a white flag icon on a black transparent background
ACG CxA Certified Commissioning Authority
Florida Environmental Balancing Bureau FEBB logo with a green triangular balance scale icon overlaid on the state of Florida outline and green text on a transparent background