Commissioning Air Systems (BG 49/2024)

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This guide supersedes BG 49/2015. It explains how to functionally test and regulate ventilation systems in buildings. It has been updated to reflect new technologies and recently published industry guidance.

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This guide explains how to functionally test and regulate ventilation systems in buildings. It was updated in 2024 to reflect new technologies and recently published industry guidance. The update was carried out by an expert author and steering group, in partnership with CIBSE and CSA.

The guide includes updated information about Building Regulations, commissioning of VAV and CAV systems, instrumentation and specialised applications such as pressure differential systems, jet nozzles, active chilled beams and hybrid ventilation systems.

The procedures in this guide comply with the standards outlined in CIBSE Commissioning Code A, which was also updated in 2024 and which sets out the normal standards of good practice accepted by the building services industry.

Sections of the guide cover:

  • Design for commissionability
  • Functional testing & regulating facilities
  • Installing commissionable systems
  • Test instruments
  • Flow measurement techniques
  • Functional testing procedures
  • Example methodologies
  • Documentation

Editable Word and Excel versions of the checklists and test sheets in the guide are attached to the pdf, and are available as a free download to users of the guide.

BSRIA would like to thank Comfort Services Group, THV Environmental Services and Ashford Environmental Services for sponsoring the guide.

Revision History:

BSRIA Instrument Solutions

BSRIA Instrument Solutions offers a range of products and services including equipment rental ideally suited for critical environments. Products include commissioning tools such as airtightness testing systems, volume flow devices and IR / thermal imaging systems. Services includes the calibration of products traceable to national standards under the Instrument Solutions ISO 9001 accreditation or UKAS accredited calibrations against the ISO 17025 standard.

Product details

  • Published: June 2024
  • Publisher: BSRIA
  • Author: Keith Barker
  • ISBN: 978-0-86022-811-0