CAB50 control box rotary switch function?

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That box comes out of the factory at #4 and #5 is the +10%.

Eric
Since I aquired the stove last year, I always found the flame and firebox temp on the low side.This is regardless of what I did with the fuel damper inside the pellet storage. Sawdust accumulation at the bottom of the auger tube also negatively impacts performance. I thought about controlling the auger motor with a small PLC to get better control over the feed rate as it appeared only a few more pellets per cycle would make the difference. Then I chanced upon your comment here about the + 10% setting. I tried it and it made a huge difference, giving me another 75 degrees of fire box temperature and a consistant flame. Thanks
 
Since I aquired the stove last year, I always found the flame and firebox temp on the low side.This is regardless of what I did with the fuel damper inside the pellet storage. Sawdust accumulation at the bottom of the auger tube also negatively impacts performance. I thought about controlling the auger motor with a small PLC to get better control over the feed rate as it appeared only a few more pellets per cycle would make the difference. Then I chanced upon your comment here about the + 10% setting. I tried it and it made a huge difference, giving me another 75 degrees of fire box temperature and a consistant flame. Thanks

Curious as to what the part number of your box. Newer models have a different part# then the originals. Trying to figure out what changes they made in the boxes.
 
Curious as to what the part number of your box. Newer models have a different part# then the originals. Trying to figure out what changes they made in the boxes.
I could not find a part number on the box to determine if it was 7058-188 or 172. It is the original on this 2 year old stove. The board number on the PCB is B3507127 if that helps.
 
p/n srv7058-188
I have no information on #4 or #5 so I would say it is not used at this time.

#2 is factory for the CAB50 and PS50
#3 adds +10%
#6 is factory for the PS35
#7 is +10%

Basically the +10% is used for very dense fuel. The is just an adjustment to the auger and not the blowers.

Eric
Eric, is that +10% just air (more RPM at comb motor) or is it an increase in air and fuel?
 
I set my Cab 50 old board to one setting higher...5...(1 year ago) It is supposed to add 10 % but it seems like a lot more. The firebox runs about 40 degrees hotter and outputs much more heat. Of course there is a corresponding fuel increase but with cold Canadian winters and a 1200 foot garage to heat the stove is performing much better. For some reason is seems to be less subject to feed tube blockages due to sawdust as well. I would caution however that if the mechanical condition of the feed screw and throat is better than mine you are close to overfiring the unit.
 
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