Bob,
Had they removed the label on the old motor where you couldn't see what the RPM
and HP was? The RPM is what makes the flow or speed of the air throught the
amp. The pressure is created by the size of the blower wheel which in turn sets
the motors HP. The pressure is one of the most important things and that may be
something you have to check. You can check this by using a clear rubber tube
filled with some water. One end of the tubing will be hooked to a fitting that
goes into the chassis where the blower goes into. Let it loop down under the
chassis so it will hold water in it. The other end is supported up higher where
the whole thing will look like a big J so you see a water level in it. The high
end is also left open. Turn the blower on and pressurize the chassis. The water
will move up in the tubing. Make a mark at the water level both pressureized
and unpressureized. Then measure the distance to see how may inches it moved.
This will give the back pressure in inches rea
ding, and can be used to check against the tables in the tube specs as to be
the right amount or not. If it's correct (matches), you'll have the correct
pressure and flow. I think there's some charts in the ARRL Handbooks too. If
you have to drill a whole to do the test, simply plug it up when your done.
Best,
Will
*********** REPLY SEPARATOR ***********
On 5/23/06 at 9:47 PM KR4DA wrote:
>I recieved the fan today.
>BUT the SPECS on the label say RPM 1100 and HP 1/500
>
>The web page says RPM 3000 and HP 1/200
>
>I hooked the fan to the NEW motor and WOW I don't think 3000 RPM
>would be GOOD.
>The fan spinning on the NEW motor does put out a nice flow of air.
>At 3000 RPM it would really be spinning.. my gut feeling is that 3000 rpm
>is to fast.
>
>
>Geees I wish I could get an answear on WHAT THE RPM SPEED IS IN THE 91B.
>I AM CONFUSED NOW AND IT PROBABLY ISN'T 3000 RPM AS WAS I
>WAS LED to believe and TOLD to me by ALPHA.
>Who the heck knows about these amps???????????????????????????
>or should I say really knows about blower motors and needs for cooling.
>
>I also posted this to the ALPHA GROUP 2 weeks ago on YAHOO ... LOL...no
>responce.
>
>
>
>KR4DA wrote:
>
>>
>>The motor currently in MY 91B is labeled as:
>>BOMAX type b-jc 50/60hz .64amp 301-6623.
>>Bomax seems to be out of business.
>>But web page is up but no refernce to this number.
>>
>>Anyone have suggestion for replacement???
>>
>>
>>I do not know how critical it is but there are on the web at emotorstore
>>c frame open motors CLOSE to the same specs.
>>
>>Plate thickness 16.6cm
>>shaft deminison .186 x 2in
>>115v .64a CW rpm 3000
>>http://www.emotorstore.com/productdetail.asp_Q_catID_E_6_A_subCatID_E_
>>251_A_productID_E_402_A_skuID_E_25484
>>has this part do you think I would it be ok to USE IT???
>>
>>I don't blame anyone but really think a person derserves better
>>communication from ALPHA on getting this fan.
>>This AMP cost me $2,748 in April 1997 that was alot of money to me.
>>And now cannot use it for HOW LONG???? until I get a motor.
>>
>>Frustrated Bob KR4DA
>>
>>
>>
>
>--
>Bob
>Vmoa chat list -> http://autos.groups.yahoo.com/group/vmoachat/
>Vmoa tech list home -> http://autos.groups.yahoo.com/group/vmoatech/
>
>
>Middleburg Fl (South Jacksonville)
>ICQ 13912841
>Web Page http://bellsouthpwp.net/k/r/kr4da
>
>Visit the FDXPG at http://www.geocities.com/w4wx1/
>
>Ham Radio Calls: KR4DA FG/KR4DA J79DA HK0/KR4DA
>
>Motorcycles CBMMA #4
>1977 XS750D 1J7008405
>1997 Vmax12J VMOA #504
>
>
>
>_______________________________________________
>Amps mailing list
>Amps@contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|