Bad install ( darwin award candidate)

ScottMP

Went out Friday night to a no heat call.

Found a WM VHE5, with a bad HSI. As I am changing it, the young girl who is the HO is asking me questions about the system.

Well, she has plexevent flue pipe so we talk about that.

The 007 circulators are sitting vertical, I tell her why they need to be moved.

She has a leak from the auto vent that is rusting the expansion tank.

Then she tells me that there is a bangin noise from the system. We discuss expansion and contraction as the system heats up. We're talking and I here schoowoomp.

This thing is flashing to steam !!

Two circs are on the return but the other one is piped seperatly. At this point her father the engineer has showed up.

I take out the owners manual to look for a pipng schematic, and there it is right on the cover. The installer took the boiler by-pass pump and made it a zone !!

Is it dangerous the HO says. Oh No says Dad the engineer.

" Actually YA IT IS " I said.

Looks like we got some more work this week. I don't know how long this thing has been doing it ( flashing ). But its amazing how guys don't even understand the boiler there installing.

Scott

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Boilerpro

Flashing into steam...

Seen that on some Burnham 810 B's piped P/S. Did this most of the spring and fall because the staging control sensor was on the main between the two boilers and had no flow across the pipe when the zone circs shutoff. Boiler high limits shut boilers off at 220, but those heavy castings would heat soak the water off the temp scale...BOOM, boom, boom. After one boiler starting leaking after only 7 years of use and was removed (by another contractor) and the piping not supported ( what supports there were were bailing wire), the solder joints came loose. After trying for 3 years to get the owners to address the problems, was called in to fix the leaks and said let's at least put a continuous circ line through the boiler room piping so boiler water always passes the sensor....finally got a chance to improve the situation along with getting rid of 3 of the 4 connections to the compression tank, moving the sensor well to the supply and providing a longer pipe into the air scoop so it could work properly. Its amazing what you see out there..even on commercial work done by one of the biggest shops in the area.

Boilerpro