Dayton blower help!!!

[green member]

So I accidently ordered the DC version of the blower that I needed. It's a 12vdc 5.1 amp. Instead of going through the hassle of returning it I got a 12vdc 6 amp adapter. And uponwiring it up, I get half second spurts of power. What could be the problem? Need help!

 

[green member]

anyone???

 

[ben ttech]

your motor will have TWO different amperage requirements...
a motor draws much more power starting up and reaching speed than it does running there...
odds are your startup amperage is higher than that which the transformer you wired to it can deliver...

check the specs...

there is running AND startup amperage...

 

[pontiac]

do you have the spec sheet or know model number of your blower?

 

[HeadyPete]

The specs say the 5.1 amps is full load and no mention of initial draw.....

Interesting problem - what kind of power supply did you get? Make? Model?

Here is the blower specs, I believe. The only DC blower I could find. Blower model 2C646, right?

 

[ben ttech]

im not finding anything either...
my caution might be restricted to AC motors...

sorry

 

[Danksta408]

Because a motor is considered a continious load and you have use proper correction factors for the load.........For motors and other continious loads, their power needs to be rated at 125% of the value listed on them........So for your 5.1 amps it uses, you need to give it at least 6.375 amps.........Remember it takes more power to start a motor from "locked rotor" statis..........Get an adapter with a rating of no less than 6.375 amps

 

[HeadyPete]

Is there any kind of speed control on your adapter? Your fan is not for use with speed control - says it right in the specs under tech notes.

If the motor is drawing too much then it's possible there is an interrupt in your adapter...although every cheap adapter I've ever seen is just a transformer (to change 110 VAC to 12 VAC) and a rectifier to change AC to DC. If that was overdrawn it would probably burn out the transformer winding and wouldn't work at all.

 

[green member]

The specs say the 5.1 amps is full load and no mention of initial draw.....

Interesting problem - what kind of power supply did you get? Make Model?

Here is the blower specs, I believe. The only DC blower I could find. Blower model 2C646, right?

the power supply is a generic adapter for a LCD tv rated at 12vdc and 6 amps. And yes that is the right model blower

 

[green member]

Is there any kind of speed control on your adapter? Your fan is not for use with speed control - says it right in the specs under tech notes.

If the motor is drawing too much then it's possible there is an interrupt in your adapter...although every cheap adapter I've ever seen is just a transformer (to change 110 VAC to 12 VAC) and a rectifier to change AC to DC. If that was overdrawn it would probably burn out the transformer winding and wouldn't work at all.

No speed control

 

[VenturaHwy]

Its very inefficient to run this dc blower off of an ac circuit, I'd buy the ac one. Good answers guys.

 

[VenturaHwy]

I have Pyramid 12 volt power supply, 25 amps, 6 to 15 vdc. You can buy less output also.

http://mobile-emotions.com/foncolh4pows.html
http://buy-electronics.etronics.com/search?w=Pyramid&asug=

 

[HeadyPete]

I agree 100% it is inefficient to convert AC to DC and the best solution is to exchange the blower for an AC model.

You can buy as big an adapter as you want, referring to it's amp rating, as the load (blower) only draws what it needs. This leaves reserve for current spikes and startup. The only downside is bigger amperage gear is more expensive.

 

[green member]

thanks for all the replies guys. i guess it would be better to just return it for an ac version. with the ac version i can just wire straight to a heavy duty extension cord correct?

 

[pontiac]

thanks for all the replies guys. i guess it would be better to just return it for an ac version. with the ac version i can just wire straight to a heavy duty extension cord correct?

of course :smile: don't forget to ground your blower!