AS 5389:2019

AS 5389:2019 PDF

The objective of this Standard is to provide a method for calculating energy consumption and determining the comfort performance of space heating and cooling systems and ventilator systems.

It uses a combination of test results for component performance, mathematical models of representative buildings, and parameters for comfort condition. It includes methodologies for —

(a) calculating annual purchased energy use;

(b) calculating displaced purchased energy relative to reference heating and cooling devices; and

(c) determining comfort performance.

The method is applicable to products capable of space heating, cooling, or both; with or without sanitary water heating; and products capable of temperature and/or humidity controlled ventilation or heat exchange between zones of the building.

This Standard applies, but is not limited to —

(i) desiccant-based space heating and cooling systems;

(ii) solar air heating systems;

(iii) occupied space and roof ventilator systems; and

(iv) evaporative cooling systems.