ISO 9459-4:2013

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

Abstract

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.

General information

Status
: Published

Publication date
: 2013-02
Edition
: 1

Number of pages
: 70
Technical Committee
: ISO/TC 180/SC 4 Systems - Thermal performance, reliability and durability
ICS
:
27.160 Solar energy engineering

97.100.99 Heaters using other sources of energy