New Variable Speed/PWM Cooling Fan Controller from PSM
 

Power Systems Management (PSM), a new company founded to design and develop practical and useful control strategies for electrically driven devices, introduces the all new VC1240 variable speed, pulse width modulation cooling fan controller.

https://www.powersystemsmanagement.com/products/

https://i.hmjimg.com/images/2020/05/..._123401.md.jpg

The stand alone VC1240 PWM fan controller has the following features:

* Stand alone - Can work with EFI or carburetted applications.
* Compact design - At 2.1" x 2.1" x 11/16" means it can be mounted to the inside of many metal radiator fan shrouds.
* Easy installation - Most applications will have a total of six wires: Power in, Power out, temperature sensor, and A/C override.
* High Current Capability - 40A continuous, enough to comfortably support the largest dual brushed fan applications while allowing a smooth ramp-in/soft starting feature.
* A/C override forces controller on to 50% power when connected to the compressor clutch or Bat+ trinary switch.
* Safety - The controller will tolerate a short circuit to ground or a short circuit to 12V, current overload, and over temperature conditions, and will do so indefinitelywithout damage.
* Under and Over Voltage Shutdown.
* Short Pulse Timing - Will work with all brushed type fans including Ford Contour and Taurus applications without causing unnecessary motor wear.
* Long Life - Designed with the electronic circuitry separated from the high power components means a MTBF that should outlast the application.
* Hermetically sealed
* UL-94 compliant materials throughout.
* A real data sheet: https://psm-protouringcom1.netdna-ss...-Datasheet.pdf

In development since March 2019 using a 35A Lincoln Mark VIII fan as the benchmark, this controller can drive even the largest twin brushed fans with little trouble. For twin fan applications both fans will run together, hence lowering the at-idle fan noise even more. Here's the prototype mounted to the plastic shroud using a metal plate to provide additional heat sink capability. Pardon the many extra screws, dials, and switches as this allows removal and testing a variety of functions without having to remove the fan shroud. In other words and in full disclosure, this is what a test mule looks like when mounted in the most convenient location.

https://i.hmjimg.com/images/2020/05/...1643321.md.jpg

The VC1240 is available from Northern Radiator under P/N Z18350 https://www.northernradiator.com/Pro...riteria=Z18350 This kit also includes a mounting bracket to allow flexibility (not in-shroud) in the mounting location.

Please feel free to ask any questions and I'll be happy to help.

How do I order one? Whats the price?

Carl,

How would this work with Holley EFI?

Andrew

Pwm
 

Carl,

I take it you designed this PWM?

If so, how much is it and where do I send the money? :patriot:

The VC1240 is available from Northern Radiator under P/N Z18350 https://www.northernradiator.com/Pro...riteria=z18350 This kit also includes a mounting bracket to allow flexibility (not in-shroud) in the mounting location. They may point you to a local stocking distributor, but at some point NR will likely have these available through Summit and other large retail outlets as well.

Andrew,

It's stand alone, so no ECM control / interface is needed.

Hey Ty,

I was 1/2 of the design team but performed 100% of the on-car testing and validation.

Please see response above for sales channel information.

How can we purchase? Whats the price? Im not a price or the ability to order on the northern radiator site.

Since Northern is distributing this I cannot quote price. Best thing is to call them directly.

Looks like a great way to control my brushless PWM transmission cooling fan.

Unfortunately this won't work on a brushless system. We're working on something.......

You build me up just to knock me down lol :buttkick:

I reached out to Northern Radiator. They sent me to a vendor but I never heard back from them. Who is selling these?

https://www.ebay.com/itm/Z18350-NORT...EAAOSwLN5e48q-

Dillon also takes phone orders as well.

This looks like a great and simple solution. I was able to locate and download the instructions. Read through it all and I am really interested in these for multiple projects. I definitely like how the wiring is simplified with running A/C. I think you have a real winner here.

Here's the link to the instructions if anyone would like to read up on these more.

https://www.northernradiator.com/use...structions.pdf

I'm planning on running this. The twin fans on the Ron Davis radiator work great and easily cool my buddies LSA Chevelle, but are loud at full power turn on. I'm thinking this fixes that issue.

Is this still the way to go for stand alone PWM ?

Anyone have some real world experience running one of these ?
Seems like a small unit to run a pair of fans from without relays...

Thanks!
Jeff-

I haven't run it yet, but I did speak with Carl recently about it, and this is still the way to go IMO. I'm sure there's a safety factor built in, plus being PWM you don't see that sudden full load all at once.

Thanks Jody! Just ordered the last one.
I looked at the Dearle unit that seems similar, but it had as many bad reviews as good.

Jeff-

That isn’t Carls controller. I used several of Carls controllers, they work well. I noticed that Dillon stopped selling Carls controller and started selling that other one. I’m not sure Carls controller is available any longer. Northern Radiator says no longer available.

The Delta Current Controls controller is a good option.

http://www.dccontrol.com/constant_te...ontrollers.htm

Don

Sorry, I missed that it wasn't Carl's. I believe it's available but I'll have to ask Carl.

Carl says for now you get them at http://www.dccontrol.com/constant_te...ontrollers.htm

In the future there will be other options.

Appreciate the updated info!
I just ordered the DCC one, so I guess I'll have two to compare...


Jeff-

:G-Dub:

I have been running Carl's controller for two years now on my dual fan (standard not brushless) setup, AC, AutoRad radiator, with an LSA engine. Easy to wire and works great. Fans spin up slow with no electrical drain or big hit. Love it.