Too late on messing with the pressure. Last night I did figure out and adjust the pressuretrol setting. It is now MAIN-49 and DIFF-11 and the once cold radiators are now warm. I need to find out what the maximum is between these two – if there is one. I believe I saw it on this site somewhere.
On the pressuretrol it states the DIFF is subtractive. Do I take it that this number (11) is subtracted from the MAIN to equate the differential #?
And yes I it seems I am the odd bird. Just don’t call me an old bird
I do have a release valve at one end of the loop. We were wondering if this valve was operational as I have not witnessed any activity with it.
What may support this vapor system theory is I do have an (IN HG) Vac pressure valve. This is the pressure valve I mentioned in an earlier post; currently at 0. The changes made to the pressuretrol did not effect this number. This valve sits on a black triangular device on the upper front of the furnace (see the photo I uploaded in initial post).
If you need additional photos I can take plenty. Oh and the aquastat is an R183B1K. Of course I am not going there….yet.
Thanks guys…. I appreciate it.