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Abracadabra

Abracadabra

Joined on October 21, 2011

Last Post on April 1, 2012

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Adding vents

@ April 1, 2012 8:35 AM in Drilling and tapping a main

Proper way to add vents to a main:



http://www.heatinghelp.com/forum-thread/139477/Location-of-main-vent#p1252588

pitches to the left

@ February 13, 2012 10:09 PM in Another low pressure gauge problem

looks like that horizontal gauge/pressuretrol header pitches to the left and will collect water which is most likely causing the problems you are seeing.

repair kit

@ February 13, 2012 10:01 PM in Leaking Backflow Preventer

Conbraco Model #40-203-02 has a repair kit no. 40-003-94 

leaking vent

@ February 9, 2012 9:30 PM in YASN - Yet another steam newbie - questions about my system

you should see any steam coming out of a vent.  It sounds like the vent isn't shutting on steam.  That vent looks like it's been leaking for a while too.  I'd replace that vent.

wet steam

@ January 29, 2012 12:55 PM in steam vents spitting

uninsulated copper near boiler pipiing + undersized near boiler pipiing = wet steam



wet steam = spitting vents
What's the pitch on the horizontal pipe that feeds the vent antler?

that's fine

@ January 28, 2012 8:14 PM in How Often Should Auto Water Fill Boiler?

Nope, that's fine.  You are emptying the water that the float is floating on.  Float drops and the feeder feeds water.

1 more pic

@ January 28, 2012 7:59 PM in steam vents spitting

can you take a pic of the vents a little bit further back so we can see the pipiing to and from the vents.

change the gauge?

@ January 26, 2012 10:06 AM in YASN - Yet another steam newbie - questions about my system

DAXQ,





Check out a vid I made.  2 pressure gauges side by side.
One is the 0-30psi std required gauge. The other is a 0-15 oz gauge I installed.
The 0-30psi never registers any pressure.
http://www.youtube.com/watch?v=Qwm0g3o9qqI

wut!

@ January 25, 2012 11:05 PM in Installing a vaporstat - but which one??

"not sure i am concerned about the regs"

0-16 oz here

@ January 25, 2012 10:58 PM in Which Model Vaporstat for 1 Pipe Steam ?

running a 0-16oz here on 4 boilers, set to about 4 cutin and 12 cutout depending on the building.  I've adjusted some up/down.  The only time I'll see pressure get above 1 psi is in the morning when building is recovering from a 3 degree setback.

got water?

@ January 25, 2012 10:53 PM in YASN - Yet another steam newbie - questions about my system

is there suffient water in the boiler?

can't lower the lo fire

@ January 24, 2012 8:45 PM in Oversized boiler "fix"

I tried to lower the low fire.  There's a limit installed on the lo fire adjustment screw.  I can't run it any lower.  I did clock the meter on this one last week.  Didn't bring my notes home with me, but it did match what it was supposed to.



I believe the WM limits the lo limit so that the stack temp doesn't drop too low. I do have the install manual.
The manual talks about lo-hi-lo firing (which I understand), but also talks about "staged firing".  I'm wondering if what I'm trying to accomplish, by firing half the boiler is considered "staged firing".  Almost like having 2 seperate boilers, but they happen to be a single unit.

pexsupply?

@ January 24, 2012 8:04 PM in One pipe venting.

try pexsupply.com



I've used them, great custoemr service, quick delivery, great prices. Not affiliated with them. Just a happy customer.

Oversized boiler "fix"

@ January 24, 2012 6:48 PM in Oversized boiler "fix"

Have a Weil-McLain LGB-14 boiler (1690MBH input, 4313sq.ft. steam).  The LGBs are nice because they come from factory standard with a hi-lo gas train.  The LGB-14 has 2 identical gas trains, each firing half the sections of the boiler.
I've installed a vaporstat and a DPDT relay to kick the burners to lo fire when it hits 12oz pressure and kick them back to high at 4 oz.  Each pole of the relay controls the hi-lo fire of one gas train. Problem is that the boiler is so oversized, that even at low fire it continues to raise pressure to about 1.25psi. I was thinking to install a 2nd vaporstat to kill one gas train and leave the other one running until the pressure drops to 5 oz. 
Does anyone see a problem with firing only half of the boiler?  I'm also thinking that it may make a difference if I fire the side with the equalizer on it or the opposite side? The water feeder/LWCO and equalizer are of course on the same side of the boiler. I'm thinking that that would be the correct side to fire, since it's closer to the LWCO.
Any comments before I call up Weil-McLain for some guidance? 

snubber

@ January 23, 2012 11:33 PM in Bouncing vapor gauge

nope, no snubber. With the main vents on, the bouncing is decreased quite a bit.

need a lot more info

@ January 23, 2012 8:47 AM in new boiler does't make pressure

connected EDR?



boiler sq.ft. steam?
at first glance sounds like the boiler is too small.

near boiler piping

@ January 22, 2012 6:58 PM in Leaking steam radiators

Ya, what Ed said.  whoever piped that should be shot.



http://www.weil-mclain.com/en/multimedia-library/pdf/weil-mclain-pdf/products/discontinued/discontinued-boilers/eg-peg-egh-boiler/egpegegh3manual.pdf
Page 11.
Manufacturer's recommended riser 2.5", recommended header (which you are missing) 2.5"
There's a reason for their recommendations and you've run across one of the reasons.

pic of near boiler pipiing?

@ January 22, 2012 12:59 PM in dirty sightglass

pic of near boiler pipiing?

problems

@ January 21, 2012 5:55 PM in Leaking steam radiators

Here's what I have gathered.
#1 - Your plumber may have replaced the old black iron pipe with a smaller diameter of copper for the risers.  Problem #1, copper is not used for steam.  Problem #2, The smaller diameter pipe will not support the original EDR of the radiators attached to that riser. Problem #3, if the riser was not insulated the steam will condense.  Steam will push condensate up the riser easier now since the pipe is smaller.
#2 - Your pressuretrol is set to cut out at about 5psi.  This is enough to push water up pretty well (about 11 feet if my math is correct). Reduce your pressuretrol and/or get a vaporstat a nd run the system at about 10 oz.
The takeoff is the part in the basement that comes off the main to feed the riser. 

test the Gortons?

@ January 21, 2012 5:46 PM in High Pressure, new Gorton #2s

Did you check the Gorotn to make sure they were good?



I've installed 21 Gorton #2s this season and I ran into 4 bad ones where it seemed that the thing was shut. Trying banging it loose but no go. Had to return them to the supply house.

hidden or underground piping?

@ January 21, 2012 1:00 PM in Hole in steamer?

any hidden or underground wet returns?

repiped risers

@ January 21, 2012 12:58 PM in Leaking steam radiators

Did your plumber use the same size pipe when the risers were moved, or did he downsize the pipe to save money?  Were takeoffs repiped with proper pitch? 
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