Thank you. Now, that I know that this is the 2nd Pressuretrol, does the PSI setting look right?
It looks the setting is between 8 and 12 PSI.
This seems rather high, no? All of my radiator vents state to be careful about allowing any more than 10 PSI.
Hi- Assuming that you do have two pressuretrols, this is a back up for the pressuretrol that normally operates your boiler. Its job is to shut down the steam system before the safety valve opens at 15 PSI. This is just an addition saftety device and, with proper system maintenance, not ever likely to be activated. The pressuretrol that operates your boiler should be set so the maximum pressure is 2 PSI or less.