TESTING ADJUSTING and BALANCING (TAB)

INCOMA Engineering provides NEBB certified Testing, Adjusting and Balancing (TAB) services at various worldwide locations since 2003.

In order for your building’s environmental systems to function according to plan, it is extremely important to make use of a Testing, Adjusting and Balancing (TAB) specialist. A certified Testing, Adjusting and Balancing (TAB) service will ensure that your system is installed properly and operating within the allowable parameters for best efficiency and performance. This guide will walk you through the ins and outs of Testing, Adjusting and Balancing (TAB) and why it is so crucial for your business.

What’s Testing Adjusting Balancing (TAB)

TAB stands for Testing, Adjusting and Balancing (TAB) of your environmental systems. Testing, Adjusting and Balancing (TAB) is a systematic process or service applied to heating, ventilation, and air conditioning (HVAC) systems and other environmental systems to achieve and document air and hydronic flow rates.

The testing part includes the use of specialized equipment to take precise measurements of how your system is operating. These numbers are compared to the manufacturer’s specifications to determine whether the system needs to be adjusted. In the adjusting stage, the technician will inspect all aspects of how the system was installed and make minor adjustments where necessary to bring the installation up to the minimum standards for operation. Adjustments may come in many forms, some very simple and others more involved. Once the system has been adjusted, it must be rebalanced.

Balancing means that the technician will test the performance of all equipment working together to ensure that each component is operating at peak efficiency without interfering with any other component.

The following are main objectives of HVAC Test, Adjust and Balance Testing, Adjusting Balancing (TAB) procedure:

  • Balancing air and water (if applicable) flow rates
  • Measuring electrical performance of HVAC equipment

  • Verifying HVAC control system components operation

  • Room/Building pressurization
  • Room/Building Temperature & Relative Humidity Measurements. Measuring sound and vibration levels.


As a result of professionally performed certified Testing, Adjusting Balancing (TAB) service:

  • Airflow quantities from the HVAC unit

  • Amount of air flowing through the ductwork and exiting into the building from registers vents and grilles

  • Pressure levels, including air velocity, barometric pressure, static pressure, differential pressure and total pressure

  • Mixture levels and temperatures of air in plenums

  • Air turbulence and stratification within the system

  • Fan and blower operation, including motor amperage and voltage

  • Fan speed and rotation

  • Proper operation and sequencing of automatic control systems

As a result of professionally performed certified TAB service

Building comfort conditions are provided.

Operation maintenance costs are reduced.

Possible manufacturing defects are avoided.

As INCOMA Engineering, we also provide the following specific TAB services for:

DUCT AIR
LEAKAGE

BUILDING
FACADE / SHELL

INDOOR
AIR QUALITY

MULTIZONE
SYSTEMS

INDUCTION UNIT
SYSTEMS

VARIABLE AIR VOLUME (VAV) SYSTEMS

DUAL DUCT
SYSTEMS

EXHAUST AIR SYSTEMS

STAIRWELL PRESSURIZATION

BUILDING PRESSURIZATION

ELEVATOR PRESSURIZATION

LABORATORY FUME HOODS

BIOSAFETY
CABINETS

INDUSTRIAL
EXHAUST HOODS

COOLING TOWER SYSTEMS

CHILLER WATER
SYSTEMS

HEAT EXCHANGERS
AND BOILER

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+90 322 999 32 11

+90 533 199 83 73

info@incoma.com.tr

ADANA

Head Office

Doseme Mh. 60075 Sok. Baysan Is Merkezi A2 No.: 3/401 01060 Seyhan, Adana / Turkey

ISTANBUL

Istanbul Office

Guzeltepe Mah. 15 Temmuz Sehitleri Cad.
5. Levent Konutlari Eyup, Istanbul / Turkey

BODRUM

Bodrum Office

Yalikavak Mah. Flipper Sok.
Gokcebel Mevkii Bodrum, Mugla / Turkey

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