Reversible Fan needed

spark master

Senior Member
Location
cyberspace
We need to install 2 commercial grade fans on a 15 foot ceiling. 5,000 sq-ft warehouse.
Needs to be reversible for summer / winter.

Any suggestions ???
 

ptonsparky

Senior Member
Location
NE (9.06 miles @5.9 Degrees from Winged Horses)
Occupation
Electrical Contractor
Commercial grade fans are usually one direction. The blades are designed to move air in one direction. Two fans seem inadequate for that large of an area with such a low ceiling ht. Big Ass Fans might be able to handle it. Call them and let them make suggestions.
 

spark master

Senior Member
Location
cyberspace
The key to productivity is to keep people happy, and comfortable. Not make them miserable. But this isn't an HR forum. It's an electrical forum.
I simply asked about a reversible fan.
 

petersonra

Senior Member
Location
Northern illinois
Occupation
engineer
The key to productivity is to keep people happy, and comfortable. Not make them miserable. But this isn't an HR forum. It's an electrical forum.
I simply asked about a reversible fan.
All the ones I have seen in factories and warehouses were reversible where I noticed one way or the other. I guess I always assumed that was the common thing.
 

kwired

Electron manager
Location
NE Nebraska
Could be that is what the customer asked for.
I find they often don't really know what they actually need.

With ceiling fans often the blades are more efficient one way vs the other. Even after taking that in consideration, they still stir the air no matter which way they are running. One way forces air down from the fan, it hits the floor flows toward the walls then toward the ceiling and back toward the fan. Reverse the fan and it does just the opposite.

Don't want to feel so much of a draft in the winter but still want the air stirred, just slow the fan down and it probably still does what you wanted to accomplish.
 

mikeames

Senior Member
Location
Germantown MD
Occupation
Teacher - Electrician - 2017 NEC
Big Ass Fans recommends what Kwired stated above.

"Big Ass Fans does not recommend reversing your fan–just run it at a slow forward speed during the winter to keep your space evenly comfortable from floor to ceiling. Click here to learn more about running your fan during the winter. Click here to learn more about heat destratification. "

 

spark master

Senior Member
Location
cyberspace
Funny thing is, Grainger sells BA fans, & the specs say they are reversible.. BA fans are for decorative spaces, where people admire a fancy piece of equipment. We never installed one. My gym has one... nice to look at, but $6,000.....
 

hillbilly1

Senior Member
Location
Atlanta,Ga
Funny thing is, Grainger sells BA fans, & the specs say they are reversible.. BA fans are for decorative spaces, where people admire a fancy piece of equipment. We never installed one. My gym has one... nice to look at, but $6,000.....
Haven’t done one lately, but seems like their controller does have a reverse button on it, but that being said, I would not think the air foils on the ends would work well backwards.
 
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