National Balancing Council Philosophy
The distinguishing characteristic of an NBC-certified technician is the ability to prescribe solutions to the endless field conditions that prohibit an HVAC system from achieving balance and maximum field performance. Nearly all NBC technicians have extensive field experience in HVAC system repair, installation, and service, and they possess the skills required to troubleshoot the most difficult field conditions that can be revealed by their testing. These technicians test, diagnose, and maximize the performance of over 200,000 HVAC systems per year.

Practical Standards
Each certified technician subscribes to National Balancing Council Practical Standards and Procedures. Over 60 testing procedures cover a full range of testing, balancing, adjusting, and diagnostic practices backed up by NBC reporting forms.

In addition to traditional independent test reports, NBC certified technicians can provide an efficiency rating for the installed system. These ratings can be compared to the manufacturer’s equipment efficiency ratings to provide a unique view of system performance that is not offered anywhere else in the HVAC industry. CSER™ represents Cooling System Efficiency Rating and HSER™ is Heating System Efficiency Rating. We also utilize ComfortMaxx™ Software for further HVAC performance analysis.

Technical Support and Backup
NBC provides its certified technicians with toll-free technical support. New field conditions affecting HVAC system performance are uncovered daily. Experienced support is available as a benefit of certification. Architects, engineers, and building maintenance staff are welcome to contact NBC with their questions and comments at 800-633-7058.

Services Offered

Our firm is a full spectrum TAB and diagnostic company, solving issues we have encountered over the years. We provide services as we “balance your energy resources,” as prescribed by the NBC. JDL HVAC Services offers the following services to our clients:

  • Air Balancing and Hydronic Balancing
  • HVAC System Diagnostics
  • Indoor Air Quality Testing
  • Comfort Balancing
  • Duct Leakage Testing
  • Building Pressure
  • Kitchen Exhaust and Makeup Air Systems
  • Commissioning
  • Pressure Testing
  • Combustion Efficiency Testing
  • Carbon Monoxide Safety Testing
  • CSER Reports, HSER Reports
  • Temperature Diagnostics
  • Thermal Imaging
  • Humidity Testing
  • Delivered BTU Measurements
  • Verification of Control Operational Sequence
  • Power Measurements on Motors
  • Belt Size Calculations, Belt Tension Measurements
  • Air System Resistance Measurements
  • Inspection of HVAC Systems
  • Verification of Air Changes per Hour
  • OSA Readings
  • Verification of Physical Condition of HVAC Equipment