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FWL & the A dimension?

Jamie_6 Member Posts: 710
Thank God for patient customers!

We installed a steam boiler around Thanksgiving and we are having a few problems with it. I'll explain some of the stuff we did. It is a two pipe steam system with ½” returns and vented radiators. A hybrid of some sort between two and 1 pipe steam!

• We added two Gordon #2’s to the steam main.

• We added all new Gordon Steam radiator vents.

• We installed a Peerless boiler with a drop header.

• Had to fix one steam leak and one return leak.

• And we had to add a false water line so we had the return wet two where it needed to be.

This was our first FWL job and we did make a few mistakes which we corrected. I.E. - The U seal in the FWL was 6” when we installed it and it needed to be a close nipple. We changed that.

The PROBLEM is this system is HAMMERING & short cycling??????
The last possible thing I can come up with is the A dimension!!!!!!!!

Does the A dimension have to carry over to the FWL? That is at the FWL? Where the equalizer drops down you have to put a tee. At this tee you go up over and down to where the FWL ties in to the wet side of the return. Should that rise coincide with the A DIMENSION?

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