BOS ISO 9459-1:1993 (IDT)

Description

This part of ISO 9459 establishes a uniform indoor test method for rating solar domestic water heating
systems for thermal performance, under benchmark
conditions.
It applies only to solar water heating systems designed
solely to heat potable water to be supplied for
domestic water usage.
The test procedures described in this part of ISO 9459
are applicable to systems of solar storage capacity of
0,6 m3 or less. It includes procedures for testing solar
domestic hot water systems either with solar
irradiance simulators or thermal simulation (nonirradiated)
methods.
The test procedures in this part of ISO 9459 which
employ a non-irradiated solar collector array in series
with a conventional heat source do not apply to integral
collector storage systems, nor to systems in
which thermosiphon flow occurs, nor to any system
employing a collector/heat transfer fluid combination
which cannot be tested in accordance with the collector
test.
The test procedures in this part of ISO 9459 do not
require the solar water heating system to be subjected
to freezing conditions. Consequently, the energy
consumed or lost by a system while operating in
the freeze-protection mode is not determined.
This part of ISO 9459 is not generally applicable to
concentrating or evacuated tube systems, unless the
collimation requirements of 6.3.1.3 are met.
1) To be published.
It is not intended to be used for testing the individual
components of the system, nor is it intended to
abridge any safety or health requirements.