Testing, Adjusting and Balancing (TAB) is the process of checking and adjusting the heating, ventilating and air conditioning (HVAC) systems and subsystems to perform at the design intent and operate at an optimum level. This process includes review of the design documents for balance ability and a methodical approach to test and balance all systems to their optimal performance with verifiable test results.

A well performed testing, adjusting & balancing work is essential to the proper performance of building HVAC systems and the resultant indoor air quality. Testing adjusting and balancing is an opportunity to:

customer logini imlecMinimize Energy and Operating cost

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Improve Indoor Air Quality

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Improve Comfort

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Optimize Facilities Equipment Performance

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Lower Humidity

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Reduce Maintenance Costs

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Increase Employee Productivity

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Reduce Equipment Failure

Our services in TAB works could be summarized as follow:

Air System Balancing: All HVAC systems must undergo air balancing to ensure proper operation and performance. Even the most efficiently designed and expertly built HVAC system cannot operate at optimal levels without a proper air balance. By testing and balancing early and regularly, building owners, mechanical engineers and contractors will recognize the benefits of reduced equipment malfunction and maximum operational efficiency. Air System components that are required to be balanced could be listed as follow;

customer logini imlecConstant Volume Systems

customer logini imlecMulti-zone Systems

customer logini imlecDual Duct Systems

customer logini imlecInduction Systems

customer logini imlecVariable Air Volume Systems

customer logini imlecSupply and Exhaust Fans

Hydronic Systems Balancing: Much like Air systems balancing, water systems are balanced for the same important reasons.  Multiple variables impact the performance of hydronic equipment, from outside air to inside pumps and coils to even the slightest occupant adjustment.  Balancing Professionals can balance the proper flow of water to and from pumps and coils to provide energy costs savings while improving occupants’ health and comfort through HVAC performance. Uncontrolled flow rates can result in fluctuating temperatures and pressures, causing temperature control issues. Whether it’s a chilled, hot (heating or domestic), or condenser water system, for a hydronic system to function per design intent, it must undergo proper hydronic testing and balancing. Hydronic System components that are required to be balanced could be listed as follow;

customer logini imlecChilled Water Systems

customer logini imlecCondensing Water Systems

customer logini imlecReheat Water Systems

customer logini imlecPumps

customer logini imlecChillers

customer logini imlecCooling Towers


Commissioning is a systematic process that addresses these issues. It facilitates and ensures the required communication, coordination, testing, and verification, and results in the delivery of a building whose HVAC systems perform as intended.

Effective HVAC commissioning is an intentional, visible, cooperative and proactive process. It includes design review, installation verification, proper system start-ups, functional performance tests, operations and maintenance (O&M) training, and complete documentation of the HVAC systems. It assists in the coordination of construction schedules and sequences to facilitate an efficient construction process and challenges systems to perform as designed under all specified modes of operation. O&M staff training provides a basis for continued optimum HVAC systems performance throughout a facility’s existence. In summary, commissioning serves the owner’s best interests by delivering a facility with systems that perform as specified, intended, and paid for.

For the best possible results, commissioning should be included in all phases of the design and construction process:

customer logini imlecPre-Design

customer logini imlecDesign

customer logini imlecConstruction

customer logini imlecAcceptance

customer logini imlecPost-Acceptance

Regardless of the commissioning process used, there are many benefits from commissioning. Some of these benefits are:

customer logini imlecReduction of change orders and additional claims

customer logini imlecFewer project delays

customer logini imlecManaged start-up requirements

customer logini imlecShorter building turn-over transition period

customer logini imlecLess post-occupancy corrective work

customer logini imlecMinimized effects from design changes

customer logini imlecImproved indoor air quality and occupant productivity

customer logini imlecBetter operation, maintenance and reliability

customer logini imlecLower energy and operations costs

customer logini imlecValue-added quality construction

customer logini imlecComplete and useful O&M documentation

customer logini imlecOwner advocacy for design and construction decisions

customer logini imlecDocumentation of the entire construction process


Leadership in Energy and Environmental Design (LEED) certification requires verification that a building’s energy-related systems are installed correctly, calibrated, and performing according to the owner’s project requirements. Our company works with building owners, design firms, and general contractors to complete the Fundamental and Enhanced Commissioning processes in support of LEED certification.

INCOMA Engineering and Consultancy is a member of the U.S. Green Building Council and our commissioning process adheres to the requirements of the 2009 Leadership in Energy and Environmental Design (LEED) Green Building Rating System – New Construction Version 3 pertaining specifically to Energy and Atmosphere (EA) Prerequisite 1: Fundamental Commissioning of Building Systems and EA Credit 3: Enhanced Commissioning. Benefits of commissioning for LEED include reduced energy use, lower operating costs, reduced contractor callbacks, better building documentation, improved occupant productivity, and verification that the systems perform in accordance with the owner’s project requirements.


In addition to HVAC Testing, Adjusting and Balancing (TAB), Commissioning and LEED Projects, our company provides consultancy services for below listed works are related with building mechanical systems.

customer logini imlecDuct Air Leakage Testing

customer logini imlecBuilding Envelope Testing

customer logini imlecIndoor Air Quality Testing

customer logini imlecSmoke Evacuation Testing

customer logini imlecBuilding Pressurization Testing

customer logini imlecStairwell Pressurization Testing

customer logini imlecBuilding System Optimization

customer logini imlecIndependent Design Review

customer logini imlecExisting System Surveys

customer logini imlecControl System Verification

customer logini imlecBuilding Automation System Solutions

customer logini imlecSustainable Design Consultancy

customer logini imlecLEED Feasibility Studies and Sustainability Goal Selection

customer logini imlecLEED Documentation and Submittal

customer logini imlecEnergy Audits and Modelling

customer logini imlecIndustrial Heating Cooling System Solutions