Fan systems calculator

Friday, 4 September 2020 Cover image: Volume One Fan System Calculator

Important information when using the calculator

The ABCB developed the NCC 2019 Fan systems calculator earlier this year to assist in understanding and applying the NCC Volume One Part J5.4 Fan systems DTS Provisions for energy efficiency.

Whilst the calculator has been created and designed for Excel 2010, and newer, for Windows, compatibility with other versions and operating systems is not guaranteed.

Recent feedback has advised that the tool is currently producing incorrect results when centrifugal backward-curved type fans are selected.

It is advised that until this error is rectified other calculation tools/methods should be utilised.