fans
- Thread starter jcjstl
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fazgood
Not Quite Right
Voltage and flow?
Voltage and flow?
What voltage do you need and what kind of lights do you have? I have several types, 120VAC, 24VDC and 12VDC. The quiet ones tend to not move much air. The louder ones do but they are loud.
Also, if you buy them get the fans with ball berrings and not bushings. They will last a lot longer and are much more reliable.
Faz
Voltage and flow?
What voltage do you need and what kind of lights do you have? I have several types, 120VAC, 24VDC and 12VDC. The quiet ones tend to not move much air. The louder ones do but they are loud.
Also, if you buy them get the fans with ball berrings and not bushings. They will last a lot longer and are much more reliable.
Faz
fazgood
Not Quite Right
Sounds like there is not a lot of heat
Sounds like there is not a lot of heat
breutus is correct. You can run the fans off of a wall wart power supply. Running 2 would be better than one in case one fails. A thought would be to get a radio shack adjustable wall wart supply
http://www.radioshack.com/product/index.jsp?productId=2049691&cp=&parentPage=search
that one should be able to run 2 fans without any problems. You should look at the current rating on hte fan to be sure. That is rated at 800mA and most fans are under 50.
The advantage of using an adjustable supply like that is if you dont have a lot of heat to move out of the hood, you can run the fans at 7.5v or 9v and they will run a lot quieter. Best to test the temperature at or around the balasts to make sure they are cooling.
http://www.radioshack.com/product/index.jsp?productId=2262091&cp=&parentPage=search
FOund that fan too but they probebly have in-store models that don't need to be shipped.
Faz
Sounds like there is not a lot of heat
breutus is correct. You can run the fans off of a wall wart power supply. Running 2 would be better than one in case one fails. A thought would be to get a radio shack adjustable wall wart supply
http://www.radioshack.com/product/index.jsp?productId=2049691&cp=&parentPage=search
that one should be able to run 2 fans without any problems. You should look at the current rating on hte fan to be sure. That is rated at 800mA and most fans are under 50.
The advantage of using an adjustable supply like that is if you dont have a lot of heat to move out of the hood, you can run the fans at 7.5v or 9v and they will run a lot quieter. Best to test the temperature at or around the balasts to make sure they are cooling.
http://www.radioshack.com/product/index.jsp?productId=2262091&cp=&parentPage=search
FOund that fan too but they probebly have in-store models that don't need to be shipped.
Faz
why not just make it easy for yourself and order the 4" smart fan from custom aquatics for $34.00 a piece. They come with the reastat that turns the fans up from 68 cfm to 110 cfm depending on the heat in the canopy. I have 2 of them on my canopy 1 to push and 1 to pull and they do a great job. The kit comes with the fan, reastat, power supply, mounting hardware and a chrome cover for the outside of the canopy.
I have mine in the family room where we watch tv and they do not destract from watching tv. Can you hear them? yes. Are they obnoxious? no. I just like things to operate correctly the first time so I buy it right and forget about it. If you put the incorrect power supply wattage with the fans you can have problems.
fazgood
Not Quite Right
Agreed.
Agreed.
To make sure you get the right stuff. As stated, if you get an undersized power supply (wall wart) you will cause it to over heat and fail. The examples I have here rate fans and power supplies with slightly different descriptions but it comes down to the same thing.
500 mA Miliamps = .5 A Amps
A good rule to follow is to over rate the power supply so it does not have to work very hard. My personal preference is keep the power supply at least 33% larger than required. For example, if your 12VDC fans draw .5 amps each, use a 1.5 amp (or larger) power supply.
.5A + .5A = 1.0A ÷.66 = 1.5A Amp supply
So use at least a 12Volt 1.5 amp supply and it will operate well within its safe limits. It will not hurt to use a larger supply except that they are usually more expensive.
When you pick your fans post the specs on them and we can make sure you get the correct power supply.
faz
Agreed.
To make sure you get the right stuff. As stated, if you get an undersized power supply (wall wart) you will cause it to over heat and fail. The examples I have here rate fans and power supplies with slightly different descriptions but it comes down to the same thing.
500 mA Miliamps = .5 A Amps
A good rule to follow is to over rate the power supply so it does not have to work very hard. My personal preference is keep the power supply at least 33% larger than required. For example, if your 12VDC fans draw .5 amps each, use a 1.5 amp (or larger) power supply.
.5A + .5A = 1.0A ÷.66 = 1.5A Amp supply
So use at least a 12Volt 1.5 amp supply and it will operate well within its safe limits. It will not hurt to use a larger supply except that they are usually more expensive.
When you pick your fans post the specs on them and we can make sure you get the correct power supply.
faz
