A A 260 Install

 
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Lightning
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Post by Lightning » Sat. Oct. 29, 2022 8:10 am

Backdraft wrote:
Fri. Oct. 28, 2022 8:37 pm
Is there a fix to stop the asking solenoid from chattering occasionally?
It's probably chattering because of the anthrastat. Once I started using digital controls, the chattering issue was cured.

The contacts inside the anthrastat tube get glitchy. I dunno if they can be cleaned or not .

 
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Post by Backdraft » Sun. Oct. 30, 2022 5:36 pm

I had a chance to work on the coal bin this weekend. There will be some sacrificial coal that doesn’t make it to the auger but should save some shoveling.

 
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Post by Townsend » Wed. Nov. 02, 2022 12:05 pm

Beautiful boiler and install. That fire pot pic is great.

 
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Post by Rob R. » Wed. Nov. 02, 2022 3:59 pm

Backdraft wrote:
Sun. Oct. 30, 2022 5:36 pm
I had a chance to work on the coal bin this weekend. There will be some sacrificial coal that doesn’t make it to the auger but should save some shoveling.B549EDF9-F010-4963-ACCF-7AAE8DF160B8.jpeg
Nice bin setup. How are you making out on the gearbox shaft?


 
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Post by Backdraft » Wed. Nov. 02, 2022 4:15 pm

Bought a 16: 1 gearbox at a fair price . The output shafts appear to be the same so I may just swap them.

 
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Post by Backdraft » Sun. Nov. 06, 2022 8:42 am

Apparently I had a fire in the transfer tube last nite. The high temp silicone is toast and burnt the paint on the cover.
300F23AC-C65E-4C1B-9CA3-68DCA2C3F5DD.jpeg
.JPEG | 781KB | 300F23AC-C65E-4C1B-9CA3-68DCA2C3F5DD.jpeg
Not sure of the cause ? Im thinking that I had the ashing temp set to low (115 , 2 to 3 clicks)) and that raised the height of the fire . Might have to shut this thing down till the weather gets colder.

 
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Post by McGiever » Sun. Nov. 06, 2022 9:47 am

Fire in transfer head is pretty much unheard of.

Auger is to meter coal and there is to always be a gap that trickle of coal free falls to fire bed below.

So yeah, 2-3 clicks is excessive.

You do have wiring so that ashing is ON only when fan cycles ??? That’s very important.

 
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Post by StokerDon » Sun. Nov. 06, 2022 9:56 am

16:1 gearbox?
3 teeth?
115 degree ashing temp?

You are going to need to do some math to figure this out. Using 16 to 1 rather than 25 to 1 is going to spin your auger a lot faster and that will increase the ashing rate a lot. First thing to do would be set it for 1 tooth.

115 on a stock Anthrastat is probably not a good idea.

-Don


 
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Post by Lightning » Sun. Nov. 06, 2022 10:25 am

Backdraft wrote:
Wed. Nov. 02, 2022 4:15 pm
Bought a 16: 1 gearbox at a fair price . The output shafts appear to be the same so I may just swap them.
So did you replace the whole gear box with the 16:1 or just replace the shaft to keep it's original speed?
Backdraft wrote:
Sun. Nov. 06, 2022 8:42 am
Not sure of the cause ? Im thinking that I had the ashing temp set to low (115 , 2 to 3 clicks))
I don't recall ever seeing that happen. The only cause I can think of based on the information provided and given everything is working right is that the ashing temperature is set too low and it doesn't spend enough time ashing, or it's not ashing at all. Check the linkage inside the ash tub area and confirm that the ash sled is actually moving while it's trying to ash. You may want to turn that ashing temperature up so that it spends more time ashing. Then observe it thru a couple combustion runs and see how it goes.

You mentioned "chattering" of the solenoid in a previous post, maybe it's gotten to the point that it only works intermittently which would also cause it to not ash enough..

 
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Post by Backdraft » Sun. Nov. 06, 2022 12:32 pm

Still have the 25: 1 gearbox on. I have been adjusting the ashing to try to conserve coal in this warm weather . I’m thinking the ash bed just got too high because of my settings or some kind of intermittent ashing problem like Lightning mentioned. Set it at 130 deg. this morning and it started ashing. I will ash it down this afternoon and establish a normal looking fire.

 
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Post by McGiever » Sun. Nov. 06, 2022 1:47 pm

Ashing in a AA is ALWAYS proportional to coal feed.

Ashing/feeding being proportional there is no way to burn up into the transfer head. That’s why I ask if fan run permits ashing/feeding.

Click count changes how long the duration of the ashing/feeding together. Still being proportional should never allow backing up coal in transfer head.

Anthrastat will START / STOP the ashing/feeding cycle only WHILE fan cycles in response to aquastat.

 
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Post by Backdraft » Sun. Nov. 06, 2022 4:12 pm

McGiever wrote:
Anthrastat will START / STOP the ashing/feeding cycle only WHILE fan cycles in response to aquastat.
Yes that’s the way it is working

 
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Post by Backdraft » Sun. Nov. 06, 2022 4:16 pm

Trying to learn how to use quotes ,sorry

Edit by Lightning, No problem. I fixed it for you.

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