ISO 9459-4:2013

Solar heating — Domestic water heating systems — Part 4: System performance characterization by means of component tests and computer simulation

Publication date:   Feb 4, 2013

General information

90.60 Close of review   Sep 3, 2023

ISO

ISO/TC 180/SC 4 Systems - Thermal performance, reliability and durability

International Standard

97.100.99   Heaters using other sources of energy | 27.160   Solar energy engineering

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Scope

ISO 9459-4:2013 specifies a method of evaluating the annual energy performance of solar water heaters using a combination of test results for component performance and a mathematical model to determine an annual load cycle task performance under specified weather and load conditions. The procedure is applicable to solar water heaters with integral backup or preheating into a conventional storage or instantaneous water heater and to integral collector storage water heaters.
System operating requirements specified in ISO 9459-4:2013 are for the purpose of determining an annual performance rating for domestic water heaters. There are no product design or operation requirements in ISO 9459-4:2013.

Life cycle

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PUBLISHED
ISO 9459-4:2013
90.60 Close of review
Sep 3, 2023