IAPMO PS 115-2019
IAPMO PS 115-2019 Hot Water On-Demand or Automatic Activated Hot Water Pumping Systems
standard by International Association of Plumbing and Mechanical Officials, 2019
standard by International Association of Plumbing and Mechanical Officials, 2019
IAPMO PS 115-2019 covers hot water on-demand or automatic activated hot water pumping systems intended for hot to cold water distribution and specifies requirements for materials, physical characteristics, performance testing, and markings.