CF = Demand Coincidence Factor. The coincidence of average dehumidifier demand to summer system peak =1 Table 259 shows the federal standard minimum efficiency and ENERGY STAR standards, effective October 1, 2012. Federal standards do not limit residential dehumidifier capacity, but since ENERGY STAR standards do limit the capacity to 185 pints per day, Table 2-59 only presents standards for the range of dehumidifier capacities that savings can be claimed. Dehumidifier Minimum Federal Efficiency and ENERGY STAR Standards Table 259: Capacity Federal Standard ENERGY STAR (pints/day) (L/kWh) (L/kWh) 35 1.35 ≤ > 35 45 1.50 ≤ 1.85 ≥ >45 54 1.60 ≤ >54 < 75 1.70 75 185 2.5 2.80 ≤ ≥ The annual energy usage and savings of an ENERGY STAR unit over the federal minimum standard are presented in Table for each capacity range. 260 Dehumidifier Default Energy Savings Table 260: Capacity Range Default Capacity Federal Standard ENERGY STAR ΔkWh (pints/day) (pints/day) (kWh/yr) (kWh/yr) 35 35 686 500 186 ≤ > 35 45 45 905 733 172 ≤ >45 54 54 988 854 134 ≤ >54 < 75 74 1,211 1,113 98 75 185 130 1,660 1,482 178 ≤ Measure Life ENERGY STAR Dehumidifiers: Measure Life = 12 years.
CF = Demand Coincidence Factor. The coincidence of average dehumidifier demand to summer system peak =1 Table 259 shows the federal standard minimum efficiency and ENERGY STAR standards, effective October 1, 2012. Federal standards do not limit residential dehumidifier capacity, but since ENERGY STAR standards do limit the capacity to 185 pints per day, Table 2-59 only presents standards for the range of dehumidifier capacities that savings can be claimed. Table 259: Dehumidifier Minimum Federal Efficiency and ENERGY STAR Standards Capacity (pints/day) Federal Standard (L/kWh) ENERGY STAR (L/kWh) ≤ 35 1.35 ≥ 1.85 > 35 ≤ 45 1.50 >45 ≤ 54 1.60 >54 < 75 1.70 75 ≤ 185 2.5 ≥ 2.80 The annual energy usage and savings of an ENERGY STAR unit over the federal minimum standard are presented in Table 260 for each capacity range. Table 260: Dehumidifier Default Energy Savings Capacity Range (pints/day) Default Capacity (pints/day) Federal Standard (kWh/yr) ENERGY STAR (kWh/yr) ΔkWh ≤ 35 35 686 500 186 > 35 ≤ 45 45 905 733 172 >45 ≤ 54 54 988 854 134 >54 < 75 74 1,211 1,113 98 75 ≤ 185 130 1,660 1,482 178 Measure Life ENERGY STAR Dehumidifiers: Measure Life = 12 years.
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