DIY temp controller fan setup

[gunzo]

Excuse the poor quality picture

You can get the ready made controller from Bell System at simlim tower 3rd floor.. ask for temp controller part 407 it's a 9-12v controller

I wired mine up to a 12VDC converter running off the main .. very simple .. you can buy it from SimLim tower also .. just cut off the tip, find the black and red wire (-ve and +ve respectively) recommend you get a 12VDC 1200mA

Things you need

1. Temp controller 407

2. 12VDC converter depending on no. of fans you want to run, about 1200mA should be enough .. my fans run about 0.3A each .. so lots of leftover juice..

3. some wires and heatshrink tubing (make everything look nice)

4. Solder and wire cutter

5. Silicone sealer

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Cut the 12VDC connector tip to expose the 2 internal wires .. should be either red/black or white/black and black ... black is always -ve

- connect up the +ve from the controller to the converter (yeb you need to connect 2 wires to 1 converter output +ve wire)

- likewise for the -ve

- wire up the black wire from the fan to the ground side of the 12VDC

- connect the red wire from the fan to No.3 connector

- remove the temp probe if you need to extend the length of the probe into the water (I used about 20cm extension)

- get any unused portion of the airhose tubing and run the temp probe through the tubing then seal it up with the silicone sealant (prevent saltwater corrosion)

Power up and do the controller setup and you're DONE !!

PS controller setup instructions is in the small instruction booklet..

My fan comes on at 29degrees celsius and stays on for 1 min until after the temp drops below 29 degrees

I number the bottom row of connectors from left to right 1 to 7 (anyway .. instructions come with the kit on how to setup)

1 - +ve (to the 12VDC)

2 - -ve (to the 12VDC)

3 - to the +ve of the fan (to activate the fan)

4 - -ve (to the 12VDC)

5 - +ve (to the 12VDC)

6 & 7 connects to the temperature probe (comes fitted)

[dandelion76]

Well done bro...

[News]

Well done. But one question in mind, can this setup apply to an AC fan?

How much will this cost?

[Lester]

yap wat is the cost for the whole DIY ??

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