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Others Hill Evo-310...added extra cooling fan.

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Finally made all my bits to fit an extra cooling fan (to the hot side of the pump).
Made the brackets from some scrap aluminium angle (40mm x 40mm). Just me, my trusty hacksaw and file, and some time.
Bought the 25mm clips, and PWM power controller from Aliexpress, although to be honest...I don't think I really need to 'control' the power. Flat out speed all the time would be fine.
The fan is a 120mm computer case cooling fan, and puts out 49cu.ft/min.
PURE WINGS 3 | 120mm PWM silent essential Fans from be quiet!
There are faster and also smaller fans that shove more air through, but this is probably a 'work in progress' as I see what works best.
I filled the 9015 cylinder from 100 bar to 202 bar a couple of days ago and the temp stayed down at 21°C. So I think I'm OK with that.
Will need to wait for Summer to arrive and see what happens. Quite happy with it at the moment anyway.
Absolutely dead quiet. You can't hear that fan going, even with the pump turned off.
I mounted the fan outwards a bit to allow plenty of clearance for the hose, etc.

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Update...I wanted a better output of cold air so I changed the fan. The old fan spun at a maximum 1600rpm, the new fan goes to 4000rpm. I can wind on more or less revs with the controller (0-4000rpm). With Summer on the way I figured some more air flow is better.
It's fine, and keeps things nice and cool. Needs a wee tidy up...will enclose the wires in an outer cable protector tube.
The new fan sits nicely, and plenty of clearance on the inside (doesn't touch the whip).
Pumped up the 9015 from 95bar to 203bar (yes...I know I'm naughty). Didn't time it, but was the usual Evo-310 quick.
Temp only went to 27°C so I'm more than happy.
The controller sits on a pad of 3M double sided tape.
It's a mod worth doing as I just don't like the 'normal' original temp of 75°C before shutting down to cool off.
Cost very little for peace of mind.
Power is supplied by a USB 'wall wart' (ex cell phone charger), and puts out 5v to 11v. The fan and fan controller are computer case units (PWM) so I can wind power/revs up or down as required.

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I know what you mean, the pump head gets mighty hot after a short while of running! Summer just wrapped up here and we are into fall....loving it. I have been putting my Evo on the floor outlet from the central AC, but that is mostly over now. I find the factory cooling fans adequate but not great, may do something about that too.... love your setup! 👌👌
 
Update...I wanted a better output of cold air so I changed the fan. The old fan spun at a maximum 1600rpm, the new fan goes to 4000rpm. I can wind on more or less revs with the controller (0-4000rpm). With Summer on the way I figured some more air flow is better.
It's fine, and keeps things nice and cool. Needs a wee tidy up...will enclose the wires in an outer cable protector tube.
The new fan sits nicely, and plenty of clearance on the inside (doesn't touch the whip).
Pumped up the 9015 from 95bar to 203bar (yes...I know I'm naughty). Didn't time it, but was the usual Evo-310 quick.
Temp only went to 27°C so I'm more than happy.
The controller sits on a pad of 3M double sided tape.
It's a mod worth doing as I just don't like the 'normal' original temp of 75°C before shutting down to cool off.
Cost very little for peace of mind.
Power is supplied by a USB 'wall wart' (ex cell phone charger), and puts out 5v to 11v. The fan and fan controller are computer case units (PWM) so I can wind power/revs up or down as required.

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I'm loving your setup! 😍
 
Another update...I'm really liking the new fan.
Filled up the 9015 today from 100bar to 203bar.
The Hill Evo temp gauge showed 21°C at the start. It finished at 24°C.
The entire pump felt nice and cool all round after I finished.
The fan wasn't maxed out, I just added enough revs to make the fan 'sing' a bit (so about 3/4 throttle I guess).
I am not complaining.
This is such an easy and cheap mod it is worth doing. As the added fan is only 12v you aren't going to zap yourself as you might do when playing with 220v.
 

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