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Old 01-22-2007, 09:21 AM   #46
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Steam Heat still making banging noises


Hey Carrierman, nice to hear from you. I am at work now, but I have done that several times when the boiler has flooded. I open up the valve at the bottom of the low water cut off, and the water does come out dirty. As soo as the water starts coming out, the water feeder would kick on, but like I have said I have the water to the water feeder turned off. If the boiler doesn't get water, she won't start telling me the cut off is working but doesn't mean the float is good. Let me know what else to try? Thanks Carrierman
Do you want me to empty the entire boiler out, or just let some dirty water out and when it clears close the valve? I can do this when I get home tonight, but I have done this about a thousand times, almost got severly burned this weekend. Boiler was flooded again and needed to let water out, and it was steaming hot. Let me know what you want me to try in details and I will be more than happy to give it a shot. Again my thing is why is the boiler asking for so much water, when most of the time she doesn't need. I beleive a good working boiler should not ask for water 3-4 times a day. Thanks


Last edited by helpless handyman; 01-22-2007 at 09:32 AM.
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Old 01-22-2007, 09:43 AM   #47
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Steam Heat still making banging noises


Hi helplesshandyman

It is extremly crucial that when you open the low water cut off with the water shut off to it that the boiler shuts down. If it does not, there is no doubt that either the cut off is not wired properly or the float is stuck. Please make sure to follow the instructions I put in the previous post. I don't wnat you getting hurt or blowing your boiler up.

Good luck
Rusty
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Old 01-22-2007, 10:08 AM   #48
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Steam Heat still making banging noises


Carrierman, if I open the valve to flush the LWCO, the water feeder kicks in, (and since I have the auto feed off) yes the boiler shuts down, if thats what you need to know. The boiler does shut off if it doesn't sense any water, or if you open the valve at the bottom of the LWCO. Let me know what else, Thanks. Can it be the boiler itself? If she has the right amount of water she runs okay, but then again she is constantly asking for water, 3-4 times a day, sometimes even more, and no there isn't any leaks on the pipes ot shut off vaves on the radiators. They are all new. Thanks
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Old 01-22-2007, 10:43 AM   #49
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Steam Heat still making banging noises


Hi helplesshandyman

Now we are getting somewhere. At what point in the glass does the boiler shut down? This is crucial to determining the height that the boiler needs to run at. The other thing I need you to verify is the minimum low water level. There should be a tag on the boiler that specifies this. I need to know if the low water cut off is shutting down at this level or before. If before, I need to know in inches about how much. Keep in mind we are testing, this is not the way to operate the boiler. This will help us determine what to do next, don't give up and don't get hurt, I could not forgive myself if this happens.

Good luck
Rusty
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Old 01-22-2007, 03:48 PM   #50
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Steam Heat still making banging noises


Carrierman, I will get you this info tonight when I go to the house. Thanks
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Old 01-22-2007, 08:07 PM   #51
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Steam Heat still making banging noises


Okay Carrierman, look all over and no place did it state water level, the only thing I saw was BTU 114,000, Steam BTU 85.500, and Water BTU/HR 99.100

Glass height is 8inches, before I started the boiler water level was 4 1/8 in height. When I let her steam for a while, and then shut the water to the water feeder and open the LWCO ball valve, she starts to ask for water the minute I open that valve. After a few seconds she shuts off, even if the water glass level is at 3 inc. As soon as I close the valve she fires back up, so it was hard to tell when she cuts off, because she basically shuts down if you keep the valve open.

I let her run for a while, and then I shut her down because she was gussing water at the radiator on the first, last one on the supply line. I kept her off, and before I left checked the glass and it was at 5 inc full. This tells me that water is comming back to the boiler, from condensation. I know the main has to be pitched away from the boiler, towards the return, they say 1/4 on every 10 ft. Should I pitch the main more, this way maybe the water will come back to the boiler faster, and she won't ask for so much water? I noticed when she ask for water, if I don't feed her she'll shut down, condensation comes back and she fires back up. I think I have to really pitch that supply line more, but its sure not going to be easy.
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Old 01-23-2007, 08:06 PM   #52
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Steam Heat still making banging noises


Okay Carrierman, here we go. She shuts down at 1/2 from the bottom of the glass, but she is constantly asking for water. She ask for water at 1inc, 2inc, 4inc, this is whats driving me crazy. If I feed her water, she will flood. I was looking at the LWCO and it has the center marking line, if you know what I am talking about, it lines up straight with the glass at 1/2 inc. Let me know what else you need, I think the LWCO is not the problem, but I ordered it already and it should be here anyday. I received the water feeder today, but I beleive that is not the problem as well. I'll be waiting for your response, before I install anything. I can always sell them if I don't use themThanks
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Old 01-24-2007, 11:17 AM   #53
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Steam Heat still making banging noises


Hi helplesshandyman

It sounds like to me that the LWCO is piped at the proper height. It sounds like the float may be flooded or the arm is bent. Never the less, change the LWCO and it sould fix your problem. You will want to set the water to come on at about 1" to 2" and shut off around 3" in the glass. Let me know if I confused you.

Rusty

Last edited by #CARRIERMAN; 01-24-2007 at 01:00 PM.
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Old 01-24-2007, 12:47 PM   #54
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Hey Carrierman, yes a little confused. How do I do this? The LWCO looks as if it cannot be placed higher or lower, there is a pipe that comes out of the side of the sight glass, and goes right into the LWCO. Also how does a float get flooded? Thanks
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Old 01-24-2007, 12:59 PM   #55
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Steam Heat still making banging noises


Hi helplesshandyman

I was just speculating that the float is actually bad. But it could have a brass float in it. What generally happens to flood the float is over a period of years it rubs against the side of the cast housing and rubs a small hole in it. The air comes out and the water goes in. Of course when this happens you cannot control the water height. As far as placement I believe you will be ok on height. I went back and looked at the pictures a little better. I think you will be fine just replacing the low water cut off.

Good luck
Rusty
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Old 01-24-2007, 03:09 PM   #56
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Steam Heat still making banging noises


Thanks Carrierman, just waiting for it to arrive. Thanks for all your help. I am assuming that's why the boiler is asking for so much water? I just hope this is it!
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Old 01-25-2007, 07:02 AM   #57
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Steam Heat still making banging noises


Are any of the newer radiators that you installed below the main loop?
The radiator that was "water logged" was this below the main loop or above it?

Did you add any additional supply or return lines to the system?
If so, how long?
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Old 01-25-2007, 08:23 AM   #58
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Steam Heat still making banging noises


Thanks Redline, No I did not add extra supply or return lines to the system. All the radiators are all brand new, (3-cast iron, and 4- steel metal heat elements) and I just replaced what I took off. Now when you say are they any radiators installed below the loop, do you mean below the Supply line? You got me thinking now, I have one that is the one on the end, the pipe that feeds this radiator is tap to the supply line but at an angle, because the beam did not let us tap to the supply line from the top. Will this be causing the water to come out of the radiator? I always thought the supply should be carrying only steam not water. I have to get this going, its going to be in the 10's tonight and I still haven't received the water cut off. Also, the radiator at the end of the supply line, the one that the pipe feeds it at an angle, if I shut that one off, the water reaches the second floor radiator, and it starts to spit and gush water out, yes gush water out.
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Old 01-25-2007, 09:23 AM   #59
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Steam Heat still making banging noises


Hey Carrierman, I am curious on how do you set the water to come on at about 1" to 2" and shut off around 3" in the glass? There is no adjustment on the LWCO? Thanks
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Old 01-25-2007, 10:21 AM   #60
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Steam Heat still making banging noises


Hi helplesshandyman

I just talked with a Mcdonnell Miller distributor. The number 67 does not have a water height adjustment. You will need to make sure that you purchase the one for the proper voltage unit. You can get just a packing assembly for this unit at about half the cost of replacing. There is a place in Minnesota that has a online catalog to order from. The tech I talked to came to the same conclusion about the LWCO, he said it appears to be bad also.

Good luck
Rusty

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Last edited by #CARRIERMAN; 01-25-2007 at 01:36 PM.
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