VRwood 0 Posted August 9, 2011 I'm going to replace my fan controller with one I will design myself as I think the current one is rubbish at regulating temperature. Does anyone know how the current fan controller is wired up? I think it has the three temp inputs from the sensors for the 3 fan speeds Live (switched?) Earth Fan wiring Drive for aux water pump What I am planning on doing is fitting two slimline fans and driving them proportionally based on a new temperature sensor in the tophose with the aim of keeping water temperature at a constant 90 deg there. However I will also retain the other 3 temp sensors as a fail safe incase the main temp sensor fails. I'd also like to control the auxillary water pump from this controller, but if its not built into the existing fan controller I'll probably leave it as it is! Also does anyone have the dimensions of a standard VR6 radiator core, I want to size two fans to cover as much of the core as possible! Quote Share this post Link to post Share on other sites
tony_ack 0 Posted August 9, 2011 Thought you would have read this?! Only applies to the later VR fan controller (10-pin+4pin) Fan Controller (later VR6 and/or aircon) 1 - ro/ws - Aux water pump 2 - ro/ge - pin 3 of aircon pressure switch 3 - A/C thermal cut off switch pin 2 4 - br/ws - fan run-on switch 5 - sw/gn - Stage 3 switch 6 - br - earth 7 - ro/sw - yellow temp sender (pin 3) 8 - Gn/ws - AC Thermal cut off switch pin 2 9 - Live feed 10 - gn/ws - aircon clutch pin 1 If there's no aircon, then pin 3 is the feed from the yellow temp sender to activate stage 1. Fan controller inputs/outputs 1 - Output - (activates Aux water pump) 2 - Input - High pressure in A/C system indicator (activate stage 2) 3 - Input - Activate Stage 1 fan 4 - Input - Activate fan-run on 5 - Input - Activate Stage 3 fan 6 - EARTH 7 - Input - Activate Stage 2 fan 8 - Input - Activate aircon compressor 9 - Input - Ignition on signal 10 - Output - (activates aircon clutch) 1 - Output (activates cooling fans, full speed) 2 - Output (activates cooling fans, med speed) 3 - Output (activates cooling fans, low speed) 4 - Battery Live Quote Share this post Link to post Share on other sites
VRwood 0 Posted August 9, 2011 Ah yes of course, I'd completely forgotten about those as I haven't got the A/C bit! Cheers mate. Quote Share this post Link to post Share on other sites
