kWVFD = Electric demand of variable frequency drive pump at a given flow rate. This quantity should be measured and recorded by the applicant. kWVFD peak = Peak demand of VFD pump. CFSS = Peak coincident factor of single speed pump from noon to 8 PM in summer weekday. This quantity can be deduced from the pool pump timer settings for the old pump. CFVFD = Peak coincident factor of VFD pump from noon to 8 PM in summer weekday. This quantity should be inferred from the new timer settings. Table 296: Residential VFD Pool Pumps Calculations Assumptions Component Type Values Source HSS Variable Default: 5.18 2 HVFD Variable Default: 13.00 2 Days/yr Fixed Default: 100 2 kWSS Variable EDC Data Gathering 1 and Table 295 orTable 297 Default: 1.364 W or See Table 297 kWVFD Variable EDC Data Gathering EDC Data Gathering CFSS Variable Default: 0.235 3 CFVFD Fixed 0 Program Design Sources: Appliances Database Pool Updated California Energy Commission. “CEC – Pumps.” Feb 2008. Accessed March 2008. Mid-Atlantic TRM, version 2.0. Prepared by Vermont Energy Investment Corporation. Facilitated and managed by the Northeast Energy Efficiency Partnerships. July 2011. Derived from Pool Pump and Demand Response Potential, DR 07.01 Report, SCE Design and Engineering, Table 16. Statewide value calculated using the non-weather dependent coincident peak demand calculator with inland valley data. Average Single Speed Pump Electric Demand Since this measure involves functional pool pumps, actual measurements of pump demand are encouraged. If this is not possible, then the pool pump power can be inferred from the nameplate horsepower. Table 297 shows the average service factor (over-sizing factor), motor efficiency, and electrical power demand per pump size based on California Energy Commission (CEC) appliance database for single speed pool pump. Note that the power to horsepower ratios appear high because many pumps, in particular those under 2 HP, have high The true ‘service factors’. motor capacity is the product of the nameplate horsepower and the service factor.
kWVFD = Electric demand of variable frequency drive pump at a given flow rate. This quantity should be measured and recorded by the applicant. kWVFD peak = Peak demand of VFD pump. CFSS = Peak coincident factor of single speed pump from noon to 8 PM in summer weekday. This quantity can be deduced from the pool pump timer settings for the old pump. CFVFD = Peak coincident factor of VFD pump from noon to 8 PM in summer weekday. This quantity should be inferred from the new timer settings. Table 296: Residential VFD Pool Pumps Calculations Assumptions Component Type Values Source HSS Variable Default: 5.18 2 HVFD Variable Default: 13.00 2 Days/yr Fixed Default: 100 2 kWSS Variable EDC Data Gathering Default: 1.364 W or See Table 297 1 and Table 295 orTable 297 kWVFD Variable EDC Data Gathering EDC Data Gathering CFSS Variable Default: 0.235 3 CFVFD Fixed 0 Program Design Sources: “CEC Appliances Database – Pool Pumps.” California Energy Commission. Updated Feb 2008. Accessed March 2008. Mid-Atlantic TRM, version 2.0. Prepared by Vermont Energy Investment Corporation. Facilitated and managed by the Northeast Energy Efficiency Partnerships. July 2011. Derived from Pool Pump and Demand Response Potential, DR 07.01 Report, SCE Design and Engineering, Table 16. Statewide value calculated using the non-weather dependent coincident peak demand calculator with inland valley data. Average Single Speed Pump Electric Demand Since this measure involves functional pool pumps, actual measurements of pump demand are encouraged. If this is not possible, then the pool pump power can be inferred from the nameplate horsepower. Table 297 shows the average service factor (over-sizing factor), motor efficiency, and electrical power demand per pump size based on California Energy Commission (CEC) appliance database for single speed pool pump. Note that the power to horsepower ratios appear high because many pumps, in particular those under 2 HP, have high ‘service factors’. The true motor capacity is the product of the nameplate horsepower and the service factor.