Reversible fan retrofit anyone?

[pmsmechanic]

Once I fab up and install the fans, I'll delete the pusher fan I now have attached to my condenser.

I would not delete the pusher fans until you know that the puller fans work. I'm guessing that the electric puller fans will just barely adequately keep up and if you want descent AC you'll still need the pusher fans.

 

[5030]

I would not delete the pusher fans until you know that the puller fans work. I'm guessing that the electric puller fans will just barely adequately keep up and if you want descent AC you'll still need the pusher fans.

I don't believe so, in fact I disagree with your presumption and when I'm finished with the install, I'll measure the airflow (I own a airflow meter, a Kestrel digital readout) as well.

I don't 'guess' with this stuff. I analyze all the parameters and proceed accordingly.

I've only been fiddling with this stuff for over 40 years now. It's a hobby, sort of. I hold 3 patents on motorcycle related products, not that they mean anything because in today's 'World Class Manufacturing' atmosphere, holding a patent really means nothing as the folks across the pond will willingly copy your stuff and sell it cheaper. Consequently, I keep my prices in line with theirs with one advantage and that is, my products are made in America from domestic materials and assembled and welded by American employees. That is important to me and should be important to anyone who values this country.

When I sourced the fans last spring, my main parameter was more than adequate air flow and I sourced them accordingly.

When I go to the shop tomorrow morning (I need to unlock the shop anyway) so my 2 employees can go to work, we have a lot of jobs in progress presently, I'll pull the specs then and post them up but airflow across the heat exchangers isn't gonna be an issue at all.

Suffice to say the fans I purchased flow more air than the driven fan already on the tractors and they will do it with NO parasitic loss unlike the mechanical fan presently there.

 

[5030]

Finally, the fans will 'push' as well as 'pull', depending on the polarity of the switch and in my install, the fans will be 100% manual operation. That may or may not change as things jell.

No point in making it complex. It's a farm tractor, not a rocket ship.

 

[CalG]

In German, what we English speakers term "radiators", the word "coolers" is used.

I really should learn German/////

 

[Hay Dude]

The reversing fan sales literature does a great job showing how it blows chaff off the mesh on the outside of the hood, but once chaff gets inside and the fan goes into reversing mode, it’s just going to blow around under the hood and settle into the radiator again.
There’s no place for it to escape.

My issue is mostly seeds & shattered leaves stuck to the outside of the hood, but let’s face it, the radiators eventually fill up, even under the best sealed hoods. I guess the plan at that point is reverse fan, blow debris off outside of hood, then open hood and reverse fan to blow out radiators, close hood and drive.

 

[pmsmechanic]

I don't believe so, in fact I disagree with your presumption and when I'm finished with the install, I'll measure the airflow (I own a airflow meter, a Kestrel digital readout) as well.

I don't 'guess' with this stuff. I analyze all the parameters and proceed accordingly.

I've only been fiddling with this stuff for over 40 years now. It's a hobby, sort of. I hold 3 patents on motorcycle related products, not that they mean anything because in today's 'World Class Manufacturing' atmosphere, holding a patent really means nothing as the folks across the pond will willingly copy your stuff and sell it cheaper. Consequently, I keep my prices in line with theirs with one advantage and that is, my products are made in America from domestic materials and assembled and welded by American employees. That is important to me and should be important to anyone who values this country.

When I sourced the fans last spring, my main parameter was more than adequate air flow and I sourced them accordingly.

When I go to the shop tomorrow morning (I need to unlock the shop anyway) so my 2 employees can go to work, we have a lot of jobs in progress presently, I'll pull the specs then and post them up but airflow across the heat exchangers isn't gonna be an issue at all.

Suffice to say the fans I purchased flow more air than the driven fan already on the tractors and they will do it with NO parasitic loss unlike the mechanical fan presently there.

You can analyze all you want. It's how it works in real life that counts.

 

[5030]

You can analyze all you want. It's how it works in real life that counts.

Exactly. Real life is always the common denominator with any idea or product and American idea's and execution still remains supreme, least in my philosophy it does.

Could be why we sell our products world wide and have for years now.

I also believe in playing by the rules which is why you will never see me pandering any of our products on this site as one, they aren't germane to this site and two, I prefer not to. I've had a .com website parked for years now and I use it. Our products are even on You Tube though I never indulged in that venue, my satisfied customers did, however.

Time to go open the shop up and heat up the fresh coffee....

 

[DarkBlack]

Finally, the fans will 'push' as well as 'pull', depending on the polarity of the switch and in my install.

Doubt it, unless you have a way to reverse the blade leading trailing edges. Good fan blades are shaped like an airfoil, and won’t perform as well running backwards

 

[DarkBlack]

I have no idea how much a rigid mount mechanical fan consumes power wise but I'd be willing to bet around 5-10 ponies, at speed.

I would estimate more like 0.5-6 hp , idle to full rpms.
10hp would have to be a massive fan at high rpms

 

[Hay Dude]

Clean fix fans have blades that rotate. Pretty slick