DC Contoller

[85_SS]

Jabin - feel free to jump in if you see this, or anyone else who may be able to offer input


I just installed the FK35 dc controller: http://www.dccontrol.com/fk35.htm

I put a jumper across pins 5&7 only. Can someone explain the chart on their site - it isn't very straight forward. I assumed this jumper position would turn the fans on 50% @202, 100% @212, and off @187 - this isn't the case as the fans didn't turn on until about 212 (which makes sense as they state this should raise temp by 22'). I have seen some people use two jumpers in reading through threads.

Can someone explain the chart and why there are multiple dots showing for each temp setting? Should two jumpers be used in all cases (one for each side)?

When you read the text, it makes it sound like a high and low setpoint which is what I am now thinking is what they mean - I just don't understand the extra two dots showing on each line.


Also, is a high pitch whine or siren like sound "normal" to be coming from the controller? This is quite loud, though I suppose it wouldn't be as bad with the hood shut. It is not coming from the fans, as they didn't do this when I test them directly off a battery, and the noise continues for a couple minutes after the fans stop, until it "winds down" and stops.

Thanks!