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.
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