where V1 =Reported hot water consumption in gallons per-cycle at maximum fill for each wash/cycle temperature selection, as provided in 3.2.2. TUF1 = Applicable temperature use factor corresponding to wash/rinse temperature selection as shown in 5 or 6. n=Number of wash/rinse temperature selections available to the user for the clothes washer under test. TUF-Temperature use factor for warm wash setting. For clothes washers equipped with sudssaver feature: X1=Frequency of use without suds-saver feature=.86. X, Frequency of use with suds-saver feature=.14. For clothes washers not equipped with suds-saver feature: 1. DEFINITIONS 1.1 "ARI" means the Air-Conditioning and Refrigeration Institute. 1.2 "ARI 610-74" means the test standard published by the ARI, titled "Standard for Central System Humidifiers," 1974, and designated as ARI 610-74. 1.3 "By-pass humidifier" means a central system humidifier in which the air for humidification is taken from the heated air of the furnace plenum and drawn through a wetted element by the pressure differential of the furnace blower system. 1.4 "Humidification rate" means a measure of the ability of a humidifier to add moisture to its surrounding atmosphere expressed as the number of gallons of water evaporated per 24 hours of continuous operation. 1.5 "Seasonal performance factor" means the ratio of the seasonal energy output of a heating system delivered to the conditioned space, in Btu's divided by the seasonal energy input to the heating system, in Btu's. 1.6 "Humidistat" means a device which requires no user intervention and which is used to enable a humidifier to maintain a constant relative humidity of the conditioned air. 2. TESTING CONDITIONS 2.1 Installation. Install the humidifier according to manufacturer's instructions and in accordance with section A4 of ARI 610-74. In the event of a conflict between the manufacturer's instructions and ARI 610-74, the provision of ARI 610-74 shall control. 2.2 Energy flow instrumentation. Install energy flow instrumentation or other instrumentation as appropriate, in accordance with section A3 of ARI 610-74. A wattmeter shall be installed in the electrical circuit 3. TESTING AND MEASUREMENTS 3.1 Humidification rate. Determine the humidification rate, Hm, of the humidifier under test, in gallons per day, according to the methods and calculations specified in sections A5 and A6 of ARI 610-74. 3.2 Input power. Measure the input power (P) to the humidifier, in watts, when the humidifier is operating under full load conditions. 3.3 By-pass air flow rate determination for by-pass humidifiers. The air flow rate through the by-pass humidifier (V) shall be measured in cubic feet per minute using air flow nozzles in accordance with Figure A1 described in paragraph A3.3.1 and static pressure taps in accordance with paragraph A3.3.2 of ARI 610-74. The humidifier shall be mounted to a plenum attached to the outlet of a fan capable of delivering the required air flow for the conditions of the test in accordance with 6 of this Appendix. The by-pass duct of the humidifier shall be connected to the inlet of the air measuring duct (AMD). The temperature of the air shall be room temperature, 70° F ±10° F, 30 percent relative humidity, and the static pressure in the duct between the fan and humidifier shall be adjusted to 0.2 in. water differential. The pressure drop across the nozzle shall be recorded and the air volume calculated using the equations of A6.1.1 and A6.1.2 of ARI 610-74. 3.4 Temperature measurement. The temperature of the water entering the humidifier shall be maintained at 60° F ±2° F. The waste water temperature from the humidifier shall be measured and recorded. No less than five sets of readings shall be taken. 4. CALCULATION OF DERIVED RESULTS FROM TEST MEASUREMENTS 4.1 Average annual electric furnace or electric resistance heating energy consumption. Calculate the average annual electric furnace or electric resistance heating energy consumption, EF-E, expressed in kilowatthours per year, to vaporize water to maintain a room relative humidity of 30 percent at a room temperature of 70° F, and defined =average annual energy output of the humidifier in terms of heat of vaporization, in Btu's, =[N>Hm(8.34×1060)/24], where N=700 hours per year for units with humidistats, or 1600 hours per year for units without humidistats, the representative average-use cycle of humidifier operation Hm=humidification rate determined in accordance with 3.1 of this Appendix, in gallons per day 8.34 conversion factor to convert gallons of water to pounds of water 1060 heat of vaporization of water in Btu's per pound (Based on a water temperature of 60° F). 24 conversion factor to convert days to hours SPFE=1.0, seasonal performance factor of electric furnace or electric resistance heating dimensionless Qw average annual energy lost in waste water from the humidifier housing or sump, in Btu's per year, =Nxqw, as: EF-E (Qo+Qw-3412Es/SPFɛ) (1/3412), where |