two pressuretrols vs vaporstats

SRC

I currently have two pressuretrols wired for my boiler. I assume one is primary, the second is a backup. If I switched a pressuretrol to vaporstat can I leave the backup as a pressuretrol or do they both have to be the same? Two vaporstats are pricey.

jpf321

you can switch only 1

if it's the case that you have an operation controller p-trol and a backup (manual reset) p-trol .. you only have to switch the operation control... 

Eli

Will work fine

Second that. When I discovered that my system was a vapor system, I replaced one of two pressuretrols with vaporstat. Has worked like a champ for 10 yrs.

set your cut in and cutout on the pressuretrol a little wider than on your vaporstat; that way the vaporstat runs the show and, in the event of vaporstat failure, your pressuretrol keeps things in check.

Best of luck,

Eli

Tim McElwain

Is your system a

powerpile self generating system?