greenftechn wrote: By: greenftechn On: Mon Nov 25, 2013 9:22 am
I've attached the current excerpt from the manual. Older boilers can be retrofitted. Boilers from 2011, when the chain drive was replaced with a direct drive grate mechanism are good candidates for the retrofit. I don't have a cost ready at hand.
I want to let everyone know that I have been working with Darren at AHS concerning the explosions and here is the update to my settings and their effect on the explosions. I have changed my hysterics to 1 from the 5 I had it set at. This causes the grate motor to run more frequently but at lesser intervals. Combined with the slowing down of the ash dump motor to 1/4 speed accomplished by my rheostat, there have been no explosions since Friday 11/22. I know that there needs to be much more time for the boiler to function in order to make any assumptions, but so far so good. From what has been written on this forum, there is not a one time fix for the problem of explosions and each case needs to be handled individually. Darren feels that I have made changes via rewiring the dump motor to run only with the fan and slowing the motor with the rheostat has accomplished what the retrofitted ash dump controller will do. I spent $25 for the rheostat and the motor rewiring was free. So we will have to see what the cost from AHS will be for the retrofit. I am not recommending that anyone make the changes to your boiler that I did without first consulting with AHS or another expert. I am just a frustrated coal boiler owner trying my best to make the boiler safe for my family and I am happy the AHS is finally helping me. I'll keep everyone posted.