Solar heating - Domestic water heating systems - Part 4: System performance characterization by means of component tests and computer simulation
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.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 9459 |
| Publication Date | Not Available |
| Language | en - English |
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| Supercedes | |
| Committee | ISO/TC 180/SC 4 |
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