How To Reverse a Car Radiator fan from Puller to Pusher - Solar Powered

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This video is intended for those who use Car Radiator Fans for solar shed ventilation. Sometimes you need to have the fan push air versus pulling it, or due to mounting constraints. A car radiator fan's rotation be reversed to blow air in the opposite direction but it's a little more involved than swapping the wires. You actually have to flip the blade over because it's not efficient otherwise. This is called puller versus pusher configuration. In this video I will show and explain how to reverse the air flow of a typical 12v 24v car radiator fan using simple hand tools.
Car radiator fans are useful for a variety of ventilation tasks including cooling down your shed with solar power. I have produced a DIY video guide showing my solar shed ventilation projects, please check the list below. Thanks for watching!
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🟢 Check it out! My Complete Guide to Solar Shed Ventilation:
• SOLAR shed ventilation...
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🟢 Components Explained - Solar Shed Ventilation
• Solar Shed Ventilation...
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🟢 Solar Shed Ventilation - follow up on brushless DC fan install
• Low Voltage Solar Shed...
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🔗 The second fan installation in my other shed
• Low Voltage Solar Shed...
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🔗 Older video showing test of my first fan
• Update On Solar Shed V...
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🔗 Older shed video showing various solar stuff
• Solar Shed - LiFePo4 M...
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Check out our blog - Solar Thoughts Blog!
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#shed #sheds #solar #ventilation
#offgrid
#offgridsolar
#pv2l #pvtoload
#solar #offgrid #offgridsolarpowersystem #offgridandongrid
#solarelectric #solarelectricity
Music credits: by TuneTank, Pixabay

Опубликовано:

15 окт 2024

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Комментарии : 12

@MrRoboto2338 4 месяца назад

Are you going to connect to a speed controller switch or use a Thermostat Switch Circuit "button" to turn on the fan at say 86 F and off at a lower temperature? Maybe just an on/off switch?

@solarpoweredge 4 месяца назад

@MrRoboto2338 In one shed there is a PWM speed controller which is very handy. The other fan in that shed is 12v brushless with an adjustable DC converter. Both work pretty good. The 24v fan in a smaller shed just runs sun up to sun down. Might look into a thermostat in the future, ideally a mechanical DC one. Right now the fans are blasting all day, it is super hot

@MrRoboto2338 4 месяца назад

I use a small button type switch for an RV fridge "computer style" fans when that small space reaches a temperature of 100 F. They have commercially available options, but prefer the fun of making my own.

@solarpoweredge 4 месяца назад

@MrRoboto2338 I hear ya there, thumbs for DIY

@ashlysimon22 11 дней назад

I got a push/puller fan from eBay the universal one, I was told all I need to do is swap the wiring around so black is live and blue is ground to use it as a pusher fan would I still need to turn the blades over or not?

@solarpoweredge 10 дней назад

@ashlysimon22 Hi, does it have curved or swept blades? I have never seen a modern radiator fan that could run the blades backwards - they have to be flipped over (AND reverse the motor). However, I certainly don't claim to know everything - there could be an exception! How about spin the fan in both directions, and check the air flow and sound. If it is the same both ways, maybe it's a different (universal?) blade design. Out of curiosity, I did test a fan without flipping it over, and the sound was different and it blew less air.

@ashlysimon22 10 дней назад

@@solarpoweredge it's curved blades on the fan

@solarpoweredge 10 дней назад

@ashlysimon22 Ah, probably need to flip it over then. But it takes 10 seconds to reverse the wires and see what happens. Maybe it will just work

@thorhammer6040 4 месяца назад

Could this power vent my attic in the summer? Temperature switch and a solar panel on top of the attic vent and maybe a battery for the extra power generated.

@solarpoweredge 4 месяца назад

@thorhammer6040 Yes, a car radiator fan can vent an attic. I'd suggest running the fan at 8-10v max so it doesn't get so hot and wear out as fast. Can also run without a battery if you want to, straight off the solar panel

@Allexz 4 месяца назад

Would it not just be easier to turn the entire fan around, mount it backwards like you would in a PC case?

@solarpoweredge 4 месяца назад

@Allexz, no radiator fans are generally mounted on the flat side against the radiator or opening. Reversing them from puller to pusher is a very common task. So this knowledge applies to both sheds and cars/trucks in general. In both my shed, the fans had to be mounted round side facing out or they don't fit. Not only that, there is no protection from the powerful fan blades if I somehow mounted it the other way around.