About: http://webisa.webdatacommons.org/446655795

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	Sometimes they catch the lack of LWCO and sometimes, if they know the boiler, know there is a pressure switch inside and they pass it.
http://www.w3.org/ns/prov#wasQuotedFrom	hvac-talk.com