ASHRAE Standard 146-2020

Current Revision
Methods of Test for Rating Pool Heaters (ANSI Approved)

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Methods of Test for Rating Pool Heaters (ANSI Approved)

PAGES 26

Standard 146 provides methods of test testing for heating capacity and energy efficiency for rating pool heaters. The standard applies to forced-circulation heaters operated by gas, oil, and/or electricity, as well as hybrid heaters.

New in the 2020 edition:

- Reformatted the standard as a method of test.

- Expanded the scope to include heat-pump pool heaters that use earth, water, or brine as the heat source and hybrid pool heaters equipped with both a fossil-fueled burner and a heat pump.

- Revised the test method to address the products included by the expanded scope.

- Updated definitions and references.

- Modified the specification for use of the optional recirculating loop to make clear it applies only when required by the manufacturer.

- Added test methods to measure the standby and OFF-mode energy consumption.

- Deleted two obsolete informative appendices have been deleted and added a new Informative Appendix B describing test conditions used by the U.S. Department of Energy to rate pool heaters.

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