Vehicle & Technical > Discovery
electric fans
Bulli:
They will work , but are not designed for what you want. I paid about 12 quid for my vectra ones..so not bad. Discotel you should have no where near that ampage at your switch. If you have wired ti correctly and used a switched live as the trigger it will only pull a couple of amps, exactly the same as spotlights . The entire idea of a relay if that it isolates the switch from the power circuit.
27 amp wire from halfords is fine as long as you wire the fans separately to the relay and dont just join them together.
beast5680:
I,ve used the original aircon fans on my V8 as i binned the aircon (didnt work) they work ok but as bulli said they dont really move quite as much air as i would like, i feel they could be better for cooling so when funds allow i will be changing them for some better ones hopefully.
its worth investing in a temp switch it saves you having to keep watching the temp gauge to manually swith the fans on as well, something else i havent got round to doing yet :roll:
muddymart:
im thinking of getting these for the disco 1, as my viscous fan has disintegrated, will they do the job? you guys know better than me !!
http://cgi.ebay.co.uk/Ford-Sierra-Twin-Cooling-Fan-Unit_W0QQitemZ4612125764QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Range Rover Blues:
I have a pair of Kenlowes, each wired to it's own 30amp fused relay and these melted last January, laning with Dom.
Don't skimp on the heavy side, I use one run of 27Amp to each fan as already suggested, get quality relays of 30 or 40 amps, remember they get hot in use so put them in an open area. If you have wired it up correctly the switch should be carrying milliamps, if it's burning out something is wrong. Another reason for the relay is to keep the heavy wiring as short as possible, saving money, weight and resistance in that wire.
As a final note, you may not care about economy, but the 5hp the fan consumes comes from your engine, if you don't want the economy you probably want the power, you're paying for it :wink:
Discotel:
The switch is wired in right and there is not 25amps going through it, I just used a good switch to make sure it did not melt, the relay is fine that I used aswell, I did melt a crappy switch though.
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