WL110 Stoker and Fan Adjustment

 
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Flyer5
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Post by Flyer5 » Mon. Oct. 20, 2014 8:18 pm

Advice I usually give is.

1 Set the timers to 7min off and 1 min on. It will be starting at the top of the timer (1): 60s (2:) 7 ( 3:) 60s (4:) 1

2 Set your high limit at 215

3 Get the high fire set ( Screw on back of feeder) You want to get a full grate of fire when the boiler is running flat out. It may take a few hrs to get this set. Make a small adjustment let it run make another adjustment until you are happy with it. Take your time with this adjustment and get it right. Lock it down and do not mess with it.

4 Once you are confident with the Max fire setting the timers 7 off and 1 on should be close.
Pull off the B1 wire in the aquastat and set the min fire. Don't worry about getting a really small burn area. The rheostat is used to get low heat generation during idle. During full burn the combustion fan is running full speed and very large fire above the coal bed. During idle you want low combustion air and a small flame above the coal. Maybe flames 1"- 2" high. Once everything is set right you should rarely hit the dump zone.

Of coarse this is all done after the draft and combustion air settings are done. Do any changes or adjustments 1 at a time.


 
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Post by Z10396 » Mon. Oct. 20, 2014 8:52 pm

Thanks for the tip. Right now I am at about 10:30 off and 28secs on. Been holding at about 194 degrees with about a 3" hot coal band. How does this sound?

 
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Post by Flyer5 » Mon. Oct. 20, 2014 9:26 pm

As long as it stays lit and the draft remains the times don't necessarily matter. If you see lower draft readings in the warmer weather sometimes its better to fire more often . Whatever works for you is best. What I found is people will mess with it then all of a sudden it will just click with how everything works together.

 
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Post by Z10396 » Mon. Oct. 20, 2014 9:35 pm

Yep, trying to find that fine line that doesn't trip the dump but keeps that fire going. Work my way up from there as we get colder. Today has taught me a lot. McGeiver has been my lifeline through it all!
Flyer5 wrote:As long as it stays lit and the draft remains the times don't necessarily matter. If you see lower draft readings in the warmer weather sometimes its better to fire more often . Whatever works for you is best. What I found is people will mess with it then all of a sudden it will just click with how everything works together.

 
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Post by kstills » Tue. Oct. 21, 2014 8:57 am

Flyer5 wrote:As long as it stays lit and the draft remains the times don't necessarily matter. If you see lower draft readings in the warmer weather sometimes its better to fire more often . Whatever works for you is best. What I found is people will mess with it then all of a sudden it will just click with how everything works together.
Amen, brutha!

It's going to float around on you for a bit. Mine stabilized once I had a bigger heat sink to circulate, now it holds rock steady. I'm not sure if you are running a primary-secondary setup, if you are you can circulate through the old boiler 24/7 and the extra mass of water in that tank should make the idle adjustments a piece of cake.

And some of us had to mess with these puppies even befor we had an actual manual telling us what to mess with *cough*.

Being a first adopter did get me ........well, nothing, really.

But I have a great boiler. ;)

 
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Post by Flyer5 » Tue. Oct. 21, 2014 10:50 am

I haven't made an adjustment in 2 yrs on mine. Once it is set not much need to mess with it.

 
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Post by Z10396 » Tue. Oct. 21, 2014 11:00 am

Flyer5 wrote:I haven't made an adjustment in 2 yrs on mine. Once it is set not much need to mess with it.
I will probably need to tweak a bit as the weather gets colder, no? Or will it hold steady as is and compensate for itself with the higher demand?


 
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Post by kstills » Tue. Oct. 21, 2014 11:17 am

Z10396 wrote:
Flyer5 wrote:I haven't made an adjustment in 2 yrs on mine. Once it is set not much need to mess with it.
I will probably need to tweak a bit as the weather gets colder, no? Or will it hold steady as is and compensate for itself with the higher demand?
If it's holden, it's golden..... ;)

 
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Post by kstills » Tue. Oct. 21, 2014 11:18 am

Flyer5 wrote:I haven't made an adjustment in 2 yrs on mine. Once it is set not much need to mess with it.

As long as you're being chatty, how far in is your screw for the stoker feeder?

 
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Post by Flyer5 » Tue. Oct. 21, 2014 7:53 pm

kstills wrote:
Flyer5 wrote:I haven't made an adjustment in 2 yrs on mine. Once it is set not much need to mess with it.

As long as you're being chatty, how far in is your screw for the stoker feeder?
Somewhere between 11-13 . I can't remember. :(

 
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Post by Z10396 » Wed. Oct. 22, 2014 4:51 am

Well, got up this morning and the fire is out. Was I going too light with it? Same coal, no changes. Power vented so I doubt my draft changed. I think it was running at 195 when I was down there last night . I shut off my in tandem electric hot water heater.I put another bag of coal in and I noticed this bag was somewhat wet. The hopper was over half full so I am not sure if this played a factor or not.

 
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Post by kstills » Wed. Oct. 22, 2014 7:25 am

Z10396 wrote:Well, got up this morning and the fire is out. Was I going too light with it? Same coal, no changes. Power vented so I doubt my draft changed. I think it was running at 195 when I was down there last night . I shut off my in tandem electric hot water heater.I put another bag of coal in and I noticed this bag was somewhat wet. The hopper was over half full so I am not sure if this played a factor or not.
28 sec on sounds like it might not be enough. Like I said, IIRC, most were running with anywhere between 45 seconds to 1 minute of idle fire.

Note that you might have to increase the time between the idle fire if you increase the time the idle fire is on.

 
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Post by Z10396 » Wed. Oct. 22, 2014 10:05 am

Got it. I approached it conservatively to stay back from the drop zone. I think I will start with increasing the fan run time first and then open up the off time as needed to keep it from dumping. I

 
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Post by kstills » Wed. Oct. 22, 2014 10:12 am

Z10396 wrote:Got it. I approached it conservatively to stay back from the drop zone. I think I will start with increasing the fan run time first and then open up the off time as needed to keep it from dumping. I
What are you using as a dump zone?

Like I said, mine was my house, so I accepted with the 6006 tripping in warmer weather to make sure the boiler didn't go out.

Boiler's going out suck.

So I would start the other way, get it to dump reliably, then start backing off. If it dumps every once in a long while, well, at least your not down there relighting the boiler on Sunday morning when the internal temp of the house is down to 55f.

Of course, I don't have a tremendous amount of patience, so that might have played a part in it also. :)

 
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Post by Z10396 » Thu. Oct. 23, 2014 9:56 am

I am dumping to my main floor. I started the fire up again last night and increased the fan/stoker time to ~50 secs. That has helped but I don't think I have hit the dump yet. I will progressively bump it up some more until I do.


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