This standard applies to refrigerators as defined in Section 3.1, refrigerator freezers as defined in Section 3.2, freezers as defined in Section 3.3 and wine chillers as defined in Section 3.4.

This standard covers definitions, methods for computing volumes, methods for determining energy consumption and energy factor, and safety recommendations.

This standard does not include methods of testing refrigerators, wine chillers and freezers using gas fuel as defined in ANSI Standard Z21.19.

PURPOSE

The purpose of this standard is to establish a uniform and repeatable procedure or standard method for measuring specified product characteristics of refrigerators, wine chillers and freezers. The standard methods and the recommended levels of performance, where they appear, are intended to provide a means by which different brands and models of refrigerators, wine chillers and freezers can be compared and evaluated.

The standard methods are not intended to inhibit improvement and innovation in product testing, design or performance.

The following principles of interpretation shall be applied to AHAM HRF-1, and shall apply to and guide any revisions to the test procedure. The intent of the energy test procedure is to simulate typical room conditions (approximately 70 °F) with door openings, by testing at 90 °F without door openings.

Except for operating characteristics that are affected by ambient temperature (for example, compressor percent run time), the unit, when tested under this standard, shall operate equivalent to the unit in typical room conditions. The energy used by the unit shall be calculated when a calculation is provided by the standard.

Energy consuming components that operate in typical room conditions (including as a result of door openings, or a function of humidity), and that are not exempted by this standard, shall operate in an equivalent manner during energy testing under this standard, or be accounted for by all calculations as provided for in the standard.

Examples:

1. Energy saving features that are designed to operate when there are no door openings for long periods of time shall not be functional during the energy test.

2. The defrost heater shall not either function or turn off differently during the energy test than it would when in typical room conditions. Also, the product shall not recover differently during the defrost recovery period than it would in typical room conditions.

3. Electric heaters that would normally operate at typical room conditions with door openings shall also operate during the energy test.

4. Energy used during adaptive defrost shall continue to be tested and adjusted per the calculation provided for in this standard.

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