About: http://webisa.webdatacommons.org/346847863

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As shown in FIG. 1, a heat pump water heater unit (HPWH) mainly includes a system including a compressor 1, a condenser 2, an expansion device 3, and an evaporator 4.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com