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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It may include a compartment of 0. Need more than one copy? The standard methods are not intended to inhibit improvement and innovation in product testing, design or performance.
The recorded temperature of the wine storage compartment shall be the average of the temperatures recorded at the three locations shown in Figure One which is less than either the width or the depth, or both, of the full shelf. All packing materials and skid boards shall be removed. The actual voltage shall be recorded as measured at the product service connection with the compressor motor operating.
Chiller or drip trays shall be in their proper places during all tests.
AHAM HRF-1: Household Refrigerators, Combination Refrigerator-Freezers, and Household Freezers
Before the cabinet is tested, it shall be given a “run-in” period of no less than 12 hours of compressor ahham time. The locations selected shall be recorded. The hgf volume shall be the sum of the volumes of all compartments and be recorded to the nearest 0. No freezer temperature measurements need be taken in an all-refrigerator model. This standard contains test procedures that may be applied to any brand or model of electric refrigerator, refrigerator-freezer or freezer for measuring performance.
Temperatures shall be recorded at three or five locations as shown by Zham If a platform is used, it is to have a solid hrt with all sides open for air circulation underneath, and its top shall extend at least 1 foot Any surface on the door that can be used for the storage of food.
All temperature measuring sensors shall be centered in the mass which shall be 208 in air or supported by low-thermally conductive material in such a manner that there will be at least 1 inch 2.
An external door that is hinged on the right-hand side when viewed facing the cabinet. The recorded temperature of the freezer compartment shall be the average of the temperatures recorded at the locations shown in Figure The average per-cycle energy consumption for a cycle type is expressed in kWh per cycle to the nearest one hundredth 0.
If the interior arrangements of the cabinet do not conform with those shown in Figuremeasurements shall be taken at selected locations chosen to approximately represent the entire freezer compartment Section 3. The complete liner comprises the compartment liner in the cabinet, the exposed breaker strip surfaces and the door liner s.
Item Detail – AHAM HRF (Energy & Volume Refrigerating Appliances)
A control scheme that changes the defrost interval aha, a fixed length to an extended length without any intermediate steps is not considered a variable defrost control. Electric heaters that would normally operate at typical room conditions with door openings shall also operate during the energy test. Except for operating characteristics that are affected by ambient temperature for example, compressor percent run timethe unit, when tested under this standard, shall operate equivalent to the unit in typical room conditions.
The packages shall be sealed and shall contain a liner or wrapper that makes them moisture and vapor-proof. Record temperature measurements at the locations prescribed in Figures and The temperature measurements shall be made with one or more of the following instruments or their equivalents.
If incomplete cycling less than two compressor cycles occurs during a hour period, the results of the hour period shall be used. The third part is the optional test to determine the time between defrosts see Section 5. The “run-in” may be made at any convenient room temperature. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: T1, T2 and T3 indicate thermocouple locations. A means of accelerating the rate of defrost may or may not be included in the product design.
Section 4 replaces Sections 5, 6 and 7 of HRF with a simplified volume calculation procedure. Ambient air temperature shall be recorded during the test period. After steady-state conditions with no door openings are achieved in accordance with section 5.
Prior to the initiation of the door-opening sequence, the refrigerator defrost control mechanism may be re- initiated in order to minimize the test duration.
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If the time between defrosts is greater than 96 hours compressor “on” time and this defrost period can be repeated on a second unit, the test may be terminated at 96 hours CT and the absolute time value used for MTBD for each unit. A container in which ice can be stored. The first freezer door- opening shall occur at the initiation of the test period.
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. For refrigerators and refrigerator-freezers: Electrical measurements shall be made with the following instruments or their equivalents: A variable defrost control feature should predict the accumulation of frost on the evaporator and react accordingly. The first freezer door-opening shall be simultaneous with the fourth fresh food door-opening.
Otherwise, it shall be run only in the highest energy use position for each temperature control setting. Also, the product shall not recover differently during the defrost recovery period than it would in typical room conditions. These figures graphically support procedures for determination of volume described in Sections 4. The auxiliary components fan motors, anti- sweat heaters, etc. Manual defrost is one in which defrosting of the refrigerated surface is accomplished by natural or manual means with manual initiation and manual termination of the overall defrost operation.
The two-part test method in Section 5.