In newly constructed facilities we test the performance of the equipment and balance
the system to the design engineer's specifications. This assures the building owner
that they are getting what they paid for. We clear deficiencies efficiently in order
to meet completion dates.
In existing facilities our technicians can help turn poor-performing mechanical systems
into efficient, comfortable environments. Doing so can avoid unhappy customers, as
well as reduce energy costs.
The purpose of Testing, Adjusting, and Balancing (TAB) is to assure that the HVAC
system is providing maximum occupant comfort at the lowest energy cost possible,
based on the type of equipment and system design.
HVAC Testing, Adjusting and Balancing (TAB) are the three major steps used to achieve
proper operation of heating, ventilation, and air conditioning systems. T.A.B.CO.
is an independent specialized NEBB certified contractor performing TAB services on
commercial systems throughout the greater DFW area. In general, T.A.B.CO. performs
air and hydronic measurements on the HVAC systems and adjusts the flows as required
to achieve optimum performance of the building environmental equipment. The balancing
is usually based upon the design flow values required by the Mechanical Engineer
for the project. At completion of the TAB work, T.A.B.CO. submits a written report
summarizing the testing and balancing and noting any deficiencies found during the
Testing is the use of specialized and calibrated instruments to measure temperatures,
pressures, rotational speeds, electrical characteristics, velocities and air and
water quantities for an evaluation of equipment and system performance.
Adjusting is the final setting of balancing devices such as dampers and valves, adjusting
fan speeds and pump performance, in addition to automatic control devices such as
thermostats and pressure controllers to achieve maximum specified system performance
and efficiency during normal operation.
Balancing is the methodical regulation of system fluid flows (air or water) through
the use of acceptable procedures to achieve the desired or specified airflow or water
Ref: Procedural Standards for Testing Adjusting Balancing of Environmental Systems,
seventh edition, 2005, Published by NEBB.