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Re: Oil Burner Vacuum Question
The vacuum should be "0" on your set up …. Assuming it falls to 0 at rest ?
Big Ed_4
Re: Oil Burner Vacuum Question
Too much vacuum, something is clogged or bad gauge. Should install O.S.V. at tank to protect Tigerloop from pressure when filling tank. At that point vacuum should be 2 to 4 " vac. due to O.S.V. Pulsating gauge means air leak in suction line, period. Possibly not all was purged out at install.
Re: Oil Burner Vacuum Question
The vacuum is from the resistance of the oil running through the Tigerloop . The gauge is on the suction side of the pump … It may be normal …
Big Ed_4
Re: Drill Bits & Taps
I've replaced dozens of coils, blank coil plates, and plate gaskets over the past 50 years; never needed any taps, dies, or lube.
I drain the boiler, remove connected piping and wells, and grind the heads off of the bolts.
After carefully prying the plate off, I heat the remaining studs red hot and let them cool. I reheat the studs again and cool them with ice cubes. The studs have always come out easily & whole with a 6" pipe wrench.
Perhaps the customers have been lucky I've never had to spend extra time drilling & taping.
I will note that I don't or won't attempt this type of repair during the heating season, and I've always had drill bits & taps on hand..…
MikeL_2
Re: Finally!
What is a stack relay tester? What does it test, the bimetal or the electrical function?? Never knew there was such a thing.
Re: CH System Overhaul with Cast Iron to PEX Conversion
That 4,500 Btu zone is only about 6.8 gallons of water (about 700ft of 1/2 PEX tubing total). It never calls for heat on its own though. If it is calling, the other low temp zone is already calling, so it is always running in tandem with the 12,500 Btu load. Unless of course the thermostat was cranked up on that zone, but that is unlikely.
Re: How to use outdoor reset with setback?
Re: Drill Bits & Taps
J Keep in mind the tap differences, a thru tap will push the chips into the hole but will start much easier due to the many gradual teeth leading up to a full profile, where as a blind spiral flute (different than spiral point) will be very difficult to start and will draw the chips back toward you. (out of the hole)
I bolted down an old coil plate to my broken stud and used a bushing to keep my hole in alignment. It worked very well
Re: Oil Burner Vacuum Question
If your not getting any air to the burner and it fires ok then I think you are ok.
You might want to put a valve between the vac gauge and the oil line to "save the gauge" The pulsations may hurt the gauge over time. If that happens the gauge may lie to you