formed with all controls set at either their warmest or their coldest setting (not electrically or mechanically bypassed), whichever is appropriate, to attempt to achieve compartment temperatures measured during the two tests which bound (i.e., one is above and one is below) the standardized temperature. If the compartment temperatures measured during these two tests bound the standardized temperature, then these test results shall be used to determine energy consumption. If the compartment temperature measured with all controls set at their coldest setting is above the standardized temperature, a third test shall be performed with all controls set at their warmest setting and the result of this test shall be used with the result of the test performed with all controls set at their coldest setting to determine energy consumption. If the compartment temperature measured with all controls set at their warmest setting is below the standardized temperature; then the result of this test alone will be used to determine energy consumption. 3.2.2 Alternatively, a first test may be performed with all temperature controls set at their warmest setting. If the compartment temperature is below the standardized temperature, then the result of this test alone will be used to determine energy consumption. If the above condition is not met, then the unit shall be tested in accordance with 3.2.1 above. 3.2.3 Alternatively, a first test may be performed with all temperature controls set at their coldest setting. If the compartment temperature is above the standardized temperature, a second test shall be performed with all controls set at their warmest setting and the results of these two tests shall be used to determine energy consumption. If the above condition is not met, then the unit shall be tested in accordance with 3.2.1 above. 3.3 Variable defrost control optional test. After a steady-state condition is achieved, the door-opening sequence is initiated with an 18+2 second freezer door-opening occurring every eight hours to obtain three dooropenings per 24-hour period. The first freezer door-opening shall occur at the initiation of the test period. The door(s) are to be opened 60 to 90° with an average velocity for the leading edge of the door of approximately two feet per second. Prior to the initiation of the door-opening sequence, the freezer defrost control mechanism may be re-initiated in order to minimize the test duration. 4. Test Period. 4.1 Test Period. Tests shall be performed by establishing the conditions set forth in Section 2 and using control settings as set forth in Section 3 above. 4.1.1 Nonautomatic Defrost. If the model being tested has no automatic defrost sys tem, the test time period shall start after steady state conditions have been achieved, and be of not less than three hours' duration. During the test period the compressor motor shall complete two or more whole cycles (a compressor cycle is a complete "on" and a complete "off" period of the motor). If no "off" cycling will occur, as determined during the stabilization period, the test period shall be three hours. If incomplete cycling (less than two compressor cycles) occurs during a 24 hour period, the results of the 24 hour period shall be used. 4.1.2 Automatic Defrost. If the model being tested has an automatic defrost system, the test time period shall start after steady state conditions have been achieved and be from one point during a defrost period to the same point during the next defrost period. If the model being tested has a longtime automatic defrost system, the alternate provisions of 4.1.2.1 may be used. If the model being tested has a variable defrost control the provisions of 4.1.2.2. shall apply. 4.1.2.1 Long-time Automatic Defrost. If the model being tested has a long-time automatic defrost system, the test time period may consist of two parts. A first part would be the same as the test for a unit having no defrost provisions (section 4.1.1). The second part would start when a defrost period is initiated during a compressor "on" cycle and terminate at the second turn "on" of the compressor motor or after four hours, whichever comes first. 4.1.2.2 Variable defrost control. If the model being tested has a variable defrost control system, the test shall consist of three parts. Two parts shall be the same as the test for long-time automatic defrost in accordance with section 4.1.2.1 above. The third part is the optional test to determine the time between defrosts (5.2.1.3). The third part is used by manufacturers that choose not to accept the default value of F of 0.20, to calculate CT. 4.1.2.3 Variable defrost control optional test. After steady-state conditions with no door-openings are achieved in accordance with section 3.3 above, the test is continued using the above daily door-opening sequence until stabilized operation is achieved. Stabilization is defined as a minimum of three consecutive defrost cycles with times between defrost that will allow the calculation of a Mean Time Between Defrosts (MTBD1) that satisfies the statistical relationship of 90 percent confidence. The test is repeated on at least one more unit of the model and until the Mean Time Between Defrosts for the multiple unit test (MTBD2) satisfies the statistical relationship. 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. 5. Test Measurements. 5.1 Temperature Measurements. Temperature measurements shall be made at the locations prescribed in Figure 7-2 of HRF-1– 1979 and shall be accurate to within 10.5° F. (0.3°C.) of true value. The 5.1.1 Measured Temperature. The measured temperature is to be the average of all sensor temperature readings taken at a particular time. Measurements shall be taken at regular intervals not to exceed four minutes. 5.1.2 Compartment Temperature. compartment temperature for each test period shall be an average of the measured temperatures taken during a complete cycle or several complete cycles of the compressor motor (one compressor cycle is one complete motor "on" and one complete motor "off" period). For long-time automatic defrost models, compartment temperature shall be that measured in the first part of the test period specified in 4.1.1. For models equipped with variable defrost controls, compartment temperatures shall be those measured in the first part of the test period specified in 4.1.2.2. 5.1.2.1 The number of complete compressor motor cycles over which the measured temperatures in a compartment are to be averaged to determine compartment temperature shall be equal to the number of minutes between measured temperature readings rounded up to the next whole minute or a number of complete cycles over a time period exceeding one hour. One of the cycles shall be the last complete compressor motor cycles during the test period. 5.1.2.2 If no compressor motor cycling occurs, the compartment temperature shall be the average of the measured temperatures taken during the last thirty-two minutes of the test period. 5.1.2.3 If incomplete cycling occurs (less than one cycle) the compartment temperature shall be the average of all readings taken during the last three hours of the last complete "on" period. 5.2 Energy Measurements: 5.2.1 Per-day Energy Consumption. The energy consumption in kilowatt-hours per day for each test period shall be the energy expended during the test period as specified in section 4.1 adjusted to a 24 hour period. The adjustment shall be determined as follows: 5.2.1.1 Nonautomatic and automatic defrost models. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: ET=(EP 1440×K)/T where ET-test cycle energy expended in kilowatthours per day, EP energy expended in kilowatt-hours during the test period. T-length of time of the test period in minutes, ET, 1440, and K are defined in 5.2.1.1 EP1-energy expended in kilowatt-hours during the first part of the test. EP2-energy expended in kilowatt-hours during the second part of the test, CT-Defrost timer run time in hours required to cause it to go through a complete cycle, to the nearest tenth hour per cycle, 12=conversion factor to adjust for a 50% run time of the compressor in hours per day, and T1 and T2-length of time in minutes of the first and second test parts respectively. 5.2.1.3 Variable defrost control. The energy consumption in kilowatt-hours per day shall be calculated equivalent to: ET=(1440 x EP1/T1) + (EP2 − (EP1 x T2T1) x (12/CT) where 1440 is defined in 5.2.1.1 and EP1, EP2, T1, T2 and 12 are defined in 5.2.1.2. CT=(CTL x CTm)/(Fx (CTm – CTL) + CTL) where: CT least or shortest time between defrost in tenths of an hour (greater than or equal to 6 hours but less than or equal to 12 hours, 6 SL ≤12) CTM-maximum time between defrost cycles in tenths of an hour (greater than CTL but not more than 96 hours, CTL S CTM S 96) F=ratio of per day energy consumption in excess of the least energy and the maximum difference in per day energy consumption and is equal to F=(1/CT-1/CTM)/(1/CTL 1/CTM) = (ET ETL)/(ETMETL) or 0.20 in lieu of testing to find CT ETL least electrical energy consumed, in kilowatt hours ETM-maximum electrical energy consumed, in kilowatt hours For demand defrost models with no values for CTL and CT in the algorithm the default values of 12 and 84 shall be used, respectively. 5.2.1.4 Variable defrost control optional test. Perform the optional test for variable defrost control models to find CT. CT=MTBD x 0.5 MTBD=mean time between defrost ΣΧ MTBD = N X=time between defrost cycles 5.3 Volume measurements. The total refrigerated volume, VT, shall be measured in accordance with HRF-1-1979, section 3.20 and section 5.1 through 5.3. 6. Calculation of Derived Results From Test Measurements. 6.1 Adjusted Total Volume. The adjusted total volume, VA, for freezers under test shall be defined as: VA=VTXCF where VA-adjusted total volume in cubic feet, VT-total refrigerated volume in cubic feet, and CF-Correction factor of 1.73, dimensionless. 6.2 Average Per Cycle Energy Consumption: 6.2.1 The average per-cycle energy consumption for a cycle type is expressed in kilowatt-hours per cycle to the nearest one hundredth (0.01) kilowatt-hour and shall depend upon the compartment temperature attainable as shown below. 6.2.1.1 If the compartment temperature is always below 0.0° F. (-17.8° C.), the average per-cycle energy consumption shall be equivalent to: E=ET1 where E-Total per-cycle energy consumption in kilowatt-hours per day. ET is defined in 5.2.1, and Number 1 indicates the test period during which the highest compartment temperature is measured. 6.2.1.2 If one of the compartment temperatures measured for a test period is greater than 0.0° F. (17.8° C.), the average per-cycle energy consumption shall be equivalent to: E=ET1+((ET2-ET1)x(0.0-TF1)/(TF2-TF1)) where E is defined in 6.2.1.1 ET is defined in 5.2.1 TF-compartment temperature determined according to 5.1.2 in degrees F. Numbers 1 and 2 indicate measurements taken during the first and second test period as appropriate, and 0.0 Standardized compartment temperature in degrees F. [47 FR 34528, Aug. 10, 1982; 48 FR 13013, Mar. 29, 1983, as amended at 54 FR 36241, Aug. 31, 1989; 54 FR 38788, Sept. 20, 1989] APPENDIX C TO SUBPART B OF PART 430-UNIFORM TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF DISHWASHERS 1. Definitions: 1.1 "Cycle" means a sequence of operations of a dishwasher which performs a complete dishwashing operation, and may include variations or combinations of the functions of washing, rinsing and drying. 1.2 "Cycle type" means any complete sequence of operations capable of being preset on the dishwasher prior to the initiation of machine operation. 1.3 "Normal cycle" means the cycle type recommended by the manufacturer for completely washing a full load of normally soiled dishes including the power-dry feature. 1.4 "Power-dry feature" means that function in a cycle in which electrically generated heat is introduced into the washing chamber for the purpose of improving the drying performance of the dishwasher. 1.5 "Truncated normal cycle" means the normal cycle interrupted to eliminate the power-dry feature after the termination of the last rinse operation. 1.6 "Water Heating Dishwasher" means a dishwasher which is designed for hearing cold inlet water (nominal 50° F) or a dishwasher for which the manufacturer recommends operation with a nominal inlet water temperature of 120°F, and may operate at either of these inlet water temperatures by providing internal water heating to above 120°F in at least one wash phase of the normal cycle. 2. Testing conditions: 2.1 Installation. Install the dishwasher in accordance with the manufacturer's instruction, except that undercounter dishwashers need not be installed under a counter. 2.2 Electrical supply. 2.2.1 Dishwashers that operate with an electrical supply of 115 volts. Maintain the electrical supply to the dishwasher within two percent of 115 volts and within one percent of the nameplate frequency as specified by the manufacturer. 2.2.2 Dishwashers that operate with an electricial supply of 240 volts. Maintain the electrical supply to the dishwasher within two percent of 240 volts and within one percent of its nameplate frequency as specified by the manufacturer. 2.3 Water temperature. 2.3.1 Dishwashers to be tested at a nominal 140°F inlet water temperature. Maintain the water supply temperature between 135°F and 145°F. 2.3.2 Dishwashers to be tested at a nominal 120°F inlet water temperature. Maintain the water supply temperature between 118°F and 122°F. 2.3.3 Dishwashers to be tested at a nominal 50°F inlet water temperature. Maintain the water supply temperature between 48°F and 52° F. 2.4 Water pressure. Maintain the pressure of the water supply between 32.5 and 37.5 pounds per square inch. 2.5 Ambient and machine temperature. Maintain the room ambient air temperature between 70°F and 85°F, and assure that the dishwasher and the test load are at room ambient temperature at the start of each test cycle. 2.6 Load. 2.6.1 Dishwashers to be tested at a nominal 140°F inlet water temperature. The dishwasher shall be tested on the normal cycle and the truncated normal cycle without a test load. 2.6.2 Dishwashers to be tested at a nominal inlet water temperature of 50°F or 120°F. The dishwasher shall be tested or normal cycle and the truncated normal cycle with a test load of eight place settings plus six serving pieces as specified in section 6.1.1 of AHAM Standard DW-1. If the capacity of the dishwasher, as stated by the manufacturer, is less than eight place setting then the test load shall be that capacity. 2.7 Testing requirements. Provisions in this Appendix pertaining to dishwashers which operate with a nominal inlet temperature of 50° F or 120° F shall apply only to water heating dishwashers. 3. Test cycle and measurements. 3.1 Test cycle. Perform a test cycle by establishing the testing conditions set forth in 2 of this Appendix, setting the dishwasher to the cycle type to be tested, initiating the cycle and allowing the cycle to proceed to completion. 3.2 Machine electrical energy consumption. 3.2.1 Dishwashers that operate with a nominal 140°F inlet water temperature, only. Measure the machine electrical energy consumption, M, specified as the number of kilowatthours of electrical energy consumed during the entire test cycle using a water supply temperature as set forth in 2.3.1 of this Appendix. Use a kilowatt-hour meter having a resolution no larger than 0.001 kilowatt hours and a maximum error no greater than one percent. 3.2.2 Dishwashers that operate with a nominal inlet water temperature of 120°F. Measure the machine electrical energy consumption, M, specified as the number of kilowatt-hours of electrical energy consumed during the entire test cycle using a water supply temperature as set forth in 2.3.2 of this Appendix. Use a kilowatt-hour meter having a resolution no larger than 0.001 kilowatt-hours and a maximum error no greater than one percent. 3.2.3 Dishwashers that operate with a nominal inlet water temperature of 50°F. Measure the machine electrical energy consumption, M, specified as the number of kilowatt-hours of electrical energy consumed during the entire test cycle using a water supply temperature as set forth in 2.3.3 of this appendix. Use a kilowatt-hour meter having a resolution no longer than 0.001 kilowatt-hours and a maximum error no greater than one percent. 3.3 Water consumption. Measure the water consumption specified as the number of gallons delivered to the dishwasher during the entire test cycle, using a water meter having a resolution no larger than 0.1 gallon and a maximum error no greater than 1.5 percent for all water flow rates from one to five gallons per minute and for all water temperatures encountered in the test cycle. 3.4 Report values. State the reported values of machine electrical energy consumption and water consumption as measured. 4. Calculation of derived results from test measurements: 4.1 Per-cycle water energy consumption using electrically heated water. 4.1.1 Dishwashers that operate with a nominal 140°F inlet water temperature, only. Calculate for the cycle type under test the percycle water energy consumption using electrically heated water, We, expressed in kilowatt-hours per cycle and defined as: W.=VXTXK, where V=reported water consumption in gallons per cycle for the cycle type under test. T=nominal water heater temperature rise=90°F. K-specific heat of water in kilowatt-hours per gallon per degree Fahrenheit=0.00240. 4.1.2 Dishwashers that operate with a nominal inlet water temperature of 120°F. Calculate for the cycle type under test the per cycle water energy consumption using electrically heated water, We, expressed in kilowatthours per cycle and defined as: We=VxTxK where V and K are defined in 4.1.1 of this Appendix and T-nominal water heated temperature rise 70°F. 4.2 Per cycle water energy consumption using gas-heated or oil-heated water. 4.2.1 Dishwashers that operate with a nominal 140°F inlet water temperature, only. Calculate for the cycle type under test the per cycle water energy consumption using gasheated or oil-heated water, We, expressed in Btu's per cycle and defined as: Wg=VxTxC/e. where V and T are defined in 4.1.1 of this Appendix, and C-specific heat of water in Btu's per gallon per degree fahrenheit=8.20 e=nominal gas or oil water heater recovery efficiency=0.75. 4.2.2 Dishwashers that operate with a nominal inlet water temperature of 120°F. Calculate for the cycle type under test the per cycle water energy consumption using gas-heated or oil-heated water, Wg, expressed in Btu's per cycle and defined as: W=VxTxC/e where V and T are defined in 4.1.2 of this Appendix, and C and e are defined in 4.2.1 of this Appendix. 4.3 Per-cycle machine electrical energy consumption. 4.3.1 Dishwashers that operate with a nominal 140° F inlet water temperature, only. Use the measured value recorded in 3.2.1 as the percycle machine electrical energy consumption, M, expressed in kilowatt-hours per cycle. 4.3.2 Dishwashers that operate with a nominal inlet water temperature of 120°F. Use the measured value recorded in 3.2.2 as the percycle machine electrical energy consumption, M, expressed in kilowatt-hours per cycle. 4.3.3 Dishwashers that operate with a nominal inlet water temperature of 50°F. Use the measured value recorded at 3.2.3 as the percycle machine electrical consumption, M, expressed in kilowatt-hours per-cycle. 4.4 Total per-cycle energy consumption. Calculate for the cycle type under test the total per-cycle energy consumption, E, expressed in kilowatt-hours per cycle, and defined as the sum of the per-cycle machine electrical energy consumption, M, plus the per-cycle water energy consumption of electricallyheated water, W, calculated for the cycle type, determined according to 4.3 and 4.1 respectively. [48 FR 9206, Mar. 3, 1983, as amended at 49 FR 46536, Nov. 27, 1984; 49 FR 47479, Dec. 5, 1984; 52 FR 47551, Dec. 15, 1987] APPENDIX D TO SUBPART B OF PART 430-UNIFORM TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF CLOTHES DRYERS 1. DEFINITIONS 1.1 "AHAM" means the Association of Home Appliance Manufacturers. 1.2 "Bone dry" means a condition of a load of test clothes which has been dried in a dryer at maximum temperature for a minimum of 10 minutes, removed and weighed before cool down, and then dried again for 10minute periods until the final weight change of the load is 1 percent or less. 1.3 "Compact" or compact size" means a clothes dryer with a drum capacity of less than 4.4 cubic feet. 1.4 "Cool down" means that portion of the clothes drying cycle when the added gas or electric heat is terminated and the clothes continue to tumble and dry within the drum. 1.5 "Cycle" means a sequence of operation of a clothes dryer which performs a clothes drying operation, and may include variations or combinations of the functions of heating, tumbling and drying. 1.6 "Drum capacity" means the volume of the drying drum in cubic feet. 1.7 "HLD-1” means the test standard promulgated by AHAM and titled "AHAM Performance Evaluation Procedure for Household Tumble Type Clothes Dryers", June 1974, and designated as HLD-1. 1.8 "HLD-2EC" means the test standard promulgated by AHAM and titled "Test Method for Measuring Energy Consumption of Household Tumble Type Clothes Dryers," December 1975, and designated as HLD-2EC. 1.9 "Standard size” means a clothes dryer with a drum capacity of 4.4 cubic feet or greater. 1.10 "Moisture content" means the ratio of the weight of water contained by the test load to the bone-dry weight of the test load, expressed as a percent. 1.11 "Automatic termination control" means a dryer control system with a sensor which monitors either the dryer load temperature or its moisture content and with a controller which automatically terminates the drying process. A mark or detent which indicates a preferred automatic termination control setting must be present if the dryer is to be classified as having an “automatic termination control." A mark is a visible single control setting on one or more dryer controls. 1.12 "Temperature sensing control" means a system which monitors dryer exhaust air temperature and automatically terminates the dryer cycle. 1.13 "Moisture sensing control” means a system which utilizes a moisture sensing element within the dryer drum that monitors the amount of moisture in the clothes and automatically terminates the dryer cycle. 2. TESTING CONDITIONS 2.1 Installation. Install the clothes dryer in accordance with manufacturer's instructions. The dryer exhaust shall be restricted by adding the AHAM exhaust simulator described in 3.3.5 of HLD-1. All external joints should be taped to avoid air leakage. Disconnect all console light or other lighting systems on the clothes dryer which do not consume more than 10 watts during the clothes dryer test cycle. 2.2 Ambient temperature and humidity. Maintain the room ambient air temperature at 75 ±3° F and the room relative humidity at 50+10 percent relative humidity. 2.3 Energy supply. 2.3.1 Electrical supply. Maintain the electrical supply at the clothes dryer terminal block within 1 percent of 120/240 or 120/208Y or 120 volts as applicable to the particular terminal block wiring system and within 1 percent of the nameplate frequency as specified by the manufacturer. If the dryer has a |