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Heat Pumps
Pomona - Heat Pump Water Heater Class
with Eric Decker
Topic: Centralized Heat Pump Water Heater (CHPWH) System Design Considerations and New Sizing Techniques
Taught by Eric Decker, PE, CPD
Please come in at 8am for breakfast and class will begin promptly at 8:30.
PART 1: • Overview of heat pump refrigerantcycle • Discuss Minimum Lift and Water SideDeltaT • Current 3rd Party Testing Standards (Energy Star, DOE, AHRI Standard1300) • Typical refrigerants used for CHPWH • General design considerations
PART 2: • “Single-Pass” vs. “Multi-Pass” configurationvs. piping schematic • Peak and off-peak scenario hydronic analysis • General comments on “single-pass” vs.“multi-pass”, pro’s/cons • Electric Swing Tank vs. Electric Backup –hydronic analysis
PART 3: • General comments vs. gas-fired,ASPE Fixture Tables • CHPWH Sizing Methods-Peak/Off-Peak Sizing Method-Ecotope Sizing Method-CBECC-Res 2019 Sizing Method • Other Sizing Methods – ASHRAE LoadProfile • Sizing examples