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air return with 120 mm fans for data closet (alien.top)

submitted 1 year ago by [email protected] to c/[email protected]

2 comments fedilink hide all child comments

I have a "mechanical area" behind the wall and was thinking of adding an air return with a pair of 120mm fans activated by a thermal sensor.

Does a solution like this exist already ?

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[–] [email protected] 1 points 1 year ago

I did this with the thermal sensor. 2x noctua 5V fans and an old phone USB power adapter. Works really well though the fan runs at a set speed.

[–] [email protected] 1 points 1 year ago

If you are looking for a proper solution then checkout AC infinity, that'll give you everything you need I expect.

Otherwise you're looking at a self build option of a fan controller and an appropriate power supply, I just used some relatively quiet highish airflow fans in my rack run at a pretty consistent speed using a basic fan controller I 3D printed a bracket for, I might turn them up a bit in the summer if the temps are showing high..