C
commercialman
Can you guarantee that?
.
Are you suggesting using just the high limit pipe stat to switch circulator via terminal 2 will cause back end corrosion? , how does this differ from using high & low stats wired in series? , using high limit to switch pump will guarantee any circulation of water through boiler will be above 50K , this can't be said when using the high/low in series , if user were to set low limit @ 30k pump will run via terminal 2 of low limit stat.