weekdays is quite similar for all building types. The close level of agreement between disparate climate zones and building types suggest that the results will carry over to Pennsylvania. Figure 36: Load shapes for hot water in four commercial building types Figure 37: Energy to demand factors for four commercial building types. Table 375: Low Flow Pre-Rinse Sprayer Calculations Assumptions Term Unit Values Source Default: , Baseline flow rate of sprayer GPM 1, 2 Time of Sale/Retail: 1.52 GPM EDC Data EDC Data Gathering Gathering , Post measure flow rate of sprayer GPM Default: 3 Time of Sale/Retail: 1.06 GPM Default: Small, quick- service restaurants: 0.5 U, Baseline and post measure water usage 4 Medium-sized casual duration based on application dining restaurants: 1.5 Large institutional establishments with cafeteria: 3 , Temperature of hot water coming from the °F 125.6 1 spray nozzle , Incoming cold water temperature °F 55 5 EDC Data , Energy factor of existing electric water EDC Data Gathering Gathering None heater system Default: 0.904 6 ETDF, EnergyToDemandFactor None 0.000178 7 Specific mass in pounds of one gallon of 8.3 8 water Specific heat of water 1.0 8 Days per year pre-rinse spray valve is used Days 365 1 at the site Conversion Minutes per hour pre-rinse spray valve 60 Factor
weekdays is quite similar for all building types. The close level of agreement between disparate climate zones and building types suggest that the results will carry over to Pennsylvania. Figure 36: Load shapes for hot water in four commercial building types Figure 37: Energy to demand factors for four commercial building types. Table 375: Low Flow Pre-Rinse Sprayer Calculations Assumptions Term Unit Values Source , Baseline flow rate of sprayer GPM Default: Time of Sale/Retail: 1.52 GPM 1, 2 , Post measure flow rate of sprayer GPM EDC Data Gathering EDC Data Gathering Default: Time of Sale/Retail: 1.06 GPM 3 U, Baseline and post measure water usage duration based on application Default: Small, quick- service restaurants: 0.5 Medium-sized casual dining restaurants: 1.5 Large institutional establishments with cafeteria: 3 4 , Temperature of hot water coming from the spray nozzle °F 125.6 1 , Incoming cold water temperature °F 55 5 , Energy factor of existing electric water heater system None EDC Data Gathering EDC Data Gathering Default: 0.904 6 ETDF, EnergyToDemandFactor None 0.000178 7 Specific mass in pounds of one gallon of water 8.3 8 Specific heat of water 1.0 8 Days per year pre-rinse spray valve is used at the site Days 365 1 Minutes per hour pre-rinse spray valve 60 Conversion Factor