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Tech & Fab
Manually controlling electrical fans
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<blockquote data-quote="DiscoDino" data-source="post: 620487" data-attributes="member: 7405"><p>Hi everyone...</p><p></p><p>We are in the midst of finishing our truggy and with a rear radiator and dual fans, we'd want to have control of the fans for various reasons...of course, we know the engine's computer will ensure they run as needed...but some manual control when needed isn't bad...</p><p></p><p>In specific, we want to be able to "force them on" when we are slow crawling, going uphill for a long time (dual sport) with the cab enclosed (vs. no cab/windscreen)...and we want to be able to "force them off" when we are doing water crossings, etc...</p><p></p><p>The questions I have:</p><p></p><p>1. does anyone know of a switch from Carlingtech that can fit the normal Contura housing that I can cut OFF the fans AND have it light up (of course to keep me and co-pilot aware)...on the "ON" side it is easier...</p><p></p><p>2. also, has anyone used their new rotary version of the switch? I'm thinking they must ONE switch that is in the middle for the engine to do it's thing...can turn one way to cut off (and light up red let's say), and then also turn right to force them on all the time (and light up green let's say)...any idea?</p><p></p><p>3. and finally, what would be the "electrical wording" of such switches: a) the one that lights up when you cut something OFF, and b) a switch that lights up in the two positions it has (other than neutral), where one position is cutting something OFF while the other lights on easier while turning something ON.</p><p></p><p>4. finally, I assume it'll be best for us to put diodes from the engine harness to these switches en-route to the fans...so that there is not "reverse trickle" of the current for any issues...is that your opinion as well? What size diodes would you recommend (or for us to assess what size is best?).</p><p></p><p>5. Anyone you know I can contact directly? This **** is WAAAY over my head </p><p></p><p>Thanks!</p><p>Nadim</p></blockquote><p></p>
[QUOTE="DiscoDino, post: 620487, member: 7405"] Hi everyone... We are in the midst of finishing our truggy and with a rear radiator and dual fans, we'd want to have control of the fans for various reasons...of course, we know the engine's computer will ensure they run as needed...but some manual control when needed isn't bad... In specific, we want to be able to "force them on" when we are slow crawling, going uphill for a long time (dual sport) with the cab enclosed (vs. no cab/windscreen)...and we want to be able to "force them off" when we are doing water crossings, etc... The questions I have: 1. does anyone know of a switch from Carlingtech that can fit the normal Contura housing that I can cut OFF the fans AND have it light up (of course to keep me and co-pilot aware)...on the "ON" side it is easier... 2. also, has anyone used their new rotary version of the switch? I'm thinking they must ONE switch that is in the middle for the engine to do it's thing...can turn one way to cut off (and light up red let's say), and then also turn right to force them on all the time (and light up green let's say)...any idea? 3. and finally, what would be the "electrical wording" of such switches: a) the one that lights up when you cut something OFF, and b) a switch that lights up in the two positions it has (other than neutral), where one position is cutting something OFF while the other lights on easier while turning something ON. 4. finally, I assume it'll be best for us to put diodes from the engine harness to these switches en-route to the fans...so that there is not "reverse trickle" of the current for any issues...is that your opinion as well? What size diodes would you recommend (or for us to assess what size is best?). 5. Anyone you know I can contact directly? This **** is WAAAY over my head Thanks! Nadim [/QUOTE]
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