Table : Low Flow Pre-Rinse Sprayer Calculations Assumptions Term Unit Values Source , Baseline flow rate of sprayer for food service GPM 2.25 1, 7 applications , Post measure flow rate of sprayer for food GPM EDC Data Gathering EDC Data service applications Gathering Default: 1.12 1 , Baseline water usage duration for food 2 service applications , Post measure water usage duration for food 2 service applications , Baseline flow rate of sprayer for grocery GPM 2.15 1, 7 applications , Post measure flow rate of sprayer for grocery GPM EDC Data Gathering EDC Data applications Gathering Default: 1.12 1 , Baseline water usage duration for grocery 4.8 2 applications , Post measure water usage duration for 6 2 grocery applications , Temperature of hot water coming from the °F 107 3 spray nozzle for food service application , Incoming cold water temperature for grocery °F 55 6 and food service application , Temperature of hot water coming from the 97.6 3 °F spray nozzle for grocery application , Energy factor of existing electric water heater None EDC Data Gathering EDC Data system Gathering 0.904 4 ETDF, Energy to demand factor 0.000178 5 None Days per year pre-rinse spray valve is used at Days 365 1 the site Specific mass in pounds of one gallon of water 8.3 8 3,412 3,412 Conversion Factor The default savings for the installation of a low flow pre-rinse sprayer compared to a standard efficiency sprayer is 184 kWh/year for pre-rinse sprayers installed in grocery stores and 1,218 kWh/year for pre-rinse sprayers installed in food service building types such as restaurants. The deemed demand reductions for the installation of a low flow pre-rinse sprayer compared to a standard efficiency sprayer is 0.03 kW for pre-rinse sprayers installed in grocery stores and 0.22 kW for pre-rinse sprayers installed in food service building types such as restaurants.
Table : Low Flow Pre-Rinse Sprayer Calculations Assumptions Term Unit Values Source , Baseline flow rate of sprayer for food service applications GPM 2.25 1, 7 , Post measure flow rate of sprayer for food service applications GPM EDC Data Gathering EDC Data Gathering Default: 1.12 1 , Baseline water usage duration for food service applications 2 , Post measure water usage duration for food service applications 2 , Baseline flow rate of sprayer for grocery applications GPM 2.15 1, 7 , Post measure flow rate of sprayer for grocery applications GPM EDC Data Gathering EDC Data Gathering Default: 1.12 1 , Baseline water usage duration for grocery applications 4.8 2 , Post measure water usage duration for grocery applications 6 2 , Temperature of hot water coming from the spray nozzle for food service application °F 107 3 , Incoming cold water temperature for grocery and food service application °F 55 6 , Temperature of hot water coming from the spray nozzle for grocery application °F 97.6 3 , Energy factor of existing electric water heater system None EDC Data Gathering EDC Data Gathering 0.904 4 ETDF, Energy to demand factor None 0.000178 5 Days per year pre-rinse spray valve is used at the site Days 365 1 Specific mass in pounds of one gallon of water 8.3 8 3,412 3,412 Conversion Factor The default savings for the installation of a low flow pre-rinse sprayer compared to a standard efficiency sprayer is 184 kWh/year for pre-rinse sprayers installed in grocery stores and 1,218 kWh/year for pre-rinse sprayers installed in food service building types such as restaurants. The deemed demand reductions for the installation of a low flow pre-rinse sprayer compared to a standard efficiency sprayer is 0.03 kW for pre-rinse sprayers installed in grocery stores and 0.22 kW for pre-rinse sprayers installed in food service building types such as restaurants.