Cannabis Fact Contributed by:
Persian King Tiger
Images archived: 2011
Just for fun, I wanted to show how easy it is to turn a
PC fan into an intake, or into an exhaust fan. The fan I
am using is quite small, but the objective is still the
same. The first step is to find or buy a 12v DC plug
adapter. This fan here is rated at 80cfm, which will work
for a small box set-up.
Here's is some info on the 12v DC adapter: (Model
420A4141)
Output (DC) 12.0V @ 500mA
Output Voltage VDC(1)
Input 108VAC
Output Volts @ 100% Load 10.20
Input 132VAC
Output Volts @ 100% Load 13.60
Input 132VAC
Output Volts @ 10% Load 17.40
UL(2) UL*
CSA(3) L
Plug(4) 1
Simply cut the wires at the end, and strip down about a
inch of bare wire is showing.
If you don't know which wire to wire up, for instance
they're all black wires, don't worry, it will only work
one way, and if wired wrong, will simply not work at all.
But the idea is, black to black, red to red. This one
here that I used, had one black and one red coming from
the fan, and from the adapter, one black and one black
and white. The black and white wire from the adapter got
wired to the all black wire from the fan. And the all
black wire from the adapter, gets wired to the all red
wire from the fan.
To add another fan, just connect the wires of the same
together. All black goes with black, all red goes with
red. So you would still only use 2 connectors all
together. Here's a few more pictures. But for the most
part, I just wanted to show how simple it is. Make sure
you get an adapter which is rated DC for the
output.
Finished
Testing
Also a worthwhile consideration is places like radio
shack and grainger also have nice 4" muffin fans that
move as much as 200 cfm and more, which run on 110 vac.
They come with a handy power cord that has a special
connector on one end for the fan and a plug on the other
end for plugging into the wall socket or humistat /
thermostat.
