Energy and Internal Volume of Refrigerating Appliances AHAM HRF pi AHAM HRF PREFACE The Association of Home. BY ORDER OF THE EXECUTIVE DIRECTOROffice of the Federal RegisterWashington, Authority of the Code of Federal Regulations. Energy and Internal Volume of Refrigerating Appliances – AHAM HRF This standard establishes a uniform, repeatable procedure and standard methods.

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Take measurements at regular intervals not to exceed 4 minutes. The cabinet with its refrigerating mechanism shall be assembled and set up as nearly as practical in accordance with the printed instructions supplied with the cabinet. If the model being tested has a long-time automatic defrost system, the test period may consist of two parts: All deducts are the same. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. One which essentially fills the interior cross-section of the cabinet.

Ambient air temperature shall be recorded during the test period. Temperatures shall be recorded at three locations as shown in Figure If the median position can not be obtained, then set product at next warmest setting.

The average per-cycle energy consumption for a cycle type Section 3. You may delete a document from your Alert Profile at any time. For a freezer, the freezer compartment volume. The volume of control housings.

Finally, this version more fully clarifies the process of removing ice cubes from an icemaker, and further clarifies general test set-up and requirements. The same hfr shall be used for both parts of the test.

Testing shall be performed in hdf with one of the following sections using the appropriate standardized reference temperatures: The set of complete cycles shall include the last complete compressor motor cycle during the test period. Proceed to Checkout Continue Shopping.


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A tray which is automatically filled with water for freezing into ice. For type 5; non-refrigerated shelves are treated as if they were not there. If the model being tested has separate compressor systems for the refrigerator and freezer sections, each with its own automatic defrost system, then the hfr method in Section 5.

For demand defrost models with no values for CTL and CTM in the algorithm, the default values of 6 and 96, respectively, shall be used. This standard is not included in any packages. Therefore, the times between defrost should vary with different usage patterns and include a continuum of lengths of time between defrosts yrf inputs vary.

AHAM HRF-1: Household Refrigerators, Combination Refrigerator-Freezers, and Household Freezers

The “run-in” may be made at any convenient room temperature. Chiller hgf drip trays and interior of cabinet shall be dried prior to start of test after evaporator has been manually defrosted. Digital instruments must have a resolution of 0. The locations selected shall 20008 recorded. The defrost heater shall not either function or turn off differently during the energy test than it would when in typical room conditions.

The sum of i the fresh food compartment volume in cubic feet and ii the product of an adjustment factor and the freezer compartment volume in cubic feet see Section 6. The third part is the optional test to determine the time between defrosts see Section 5.

Types of defrost systems that apply to refrigerators and freezers zham defined in Sections 3. The third part is used by manufacturers that choose not to accept the default value for F of 0. Freezer compartment Section 3. All other refrigerated shelves 208 considered as not present.


Record the locations selected. Perform the optional test for variable defrost control models to find CT. All standards must be updated or reconfirmed at least every five years. This adjustment shall be determined as specified below.

These figures graphically support procedures for determination of volume described in Sections 4. A projection on the door which extends into the refrigerated compartment s and which grf primarily as a barrier to minimize heat flow to the interior of the cabinet. A system in which the defrost cycle is manually initiated and automatically terminated, with automatic resumption of normal refrigeration at the conclusion of the defrost operation.

The defrost water is 0208 of automatically. The vertical ambient temperature gradient at locations 10 inches No freezer temperature measurements need be taken in an all-refrigerator model. The test period shall start after steady state conditions have been achieved. The items below shall be considered as being in place and their volumes deducted: Standards Subsctiption may be the perfect solution. Analog Watt-hour meters shall be graduated in intervals no greater than 0.

When the volume is determined, internal fittings such as shelves, removable partitions, containers and interior light housings shall be considered as not being in place. AHAM welcomes comments and suggestions regarding this standard.

NOTE In order to keep packages from shifting and destroying the air gap, a wire grid with small, non-thermally conductive spacers for contact with freezer liner may be used. They shall relate to actual use conditions and be technically and scientifically sound. As the voice of the U.