One problem with using an air conditioner compressor for a vacuum pump is that it would run hot, since air conditioner compressors are cooled by the cold refrigerant that is pulled into the crankcase & compressor pump. It's also oiled by an ambient oil mist in the refrigerant vapor, so I don't think it would last long, even if it was hooked up to a vacuum switch that would shut it off when it was not needed to run.

Case in point: A couple of weeks ago I had to replace a compressor for a new Ductless-Split air conditioner (those little rectangular Japanese A/C's like Samsung, Mitsubishi, etc.) Someone had cut the refrigerant lines in order to steal maybe $1 of copper, and the compressor continued to run without being cooled & oiled. In short order the compressor burnt out and fouled with very smelly acid. IMO that's what would happen with your window-unit vacuum pump.

A vacuum pump system isn't very expensive--I'd go with the right stuff. I see used ones on eBay all the time. Every once in awhile Ed Berris of skykingrcproducts.com sells some good systems, so you might check with Ed through his website to see if he has any on hand he'd like to sell. From what I've seen, he knows his vacuum systems well & gives an accurate assessment of the condition of his goods. (He's also a good guy.)

Jeff Thompson
Pipefitter--Local 539, Minneapolis  :-)

Soaring wrote:
Soaring                        Fri, 28 Apr 2006         Volume 1 : Number 7546

In this issue:

        Compressor motor for vacuum bag system
        RE: [RCSE] Compressor motor for vacuum bag system


----------------------------------------------------------------------

Date: Fri, 28 Apr 2006 11:38:38 -0700
From: "Scott and Jennifer Martin" <[EMAIL PROTECTED]>
To: <soaring@airage.com>
Subject: Compressor motor for vacuum bag system
Message-ID: <[EMAIL PROTECTED]>

This is a multi-part message in MIME format.

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Need y=92alls help :-)

=20

I have a 230-volt compressor motor that came from an old =
air-conditioning
unit.  I understand that such a motor might be useful for making a
vacuum-bagging system, but I have no idea how to do it.

=20

Is such a motor what I need for a vacuum-bag system?

If so, how would I put it to such use?  Can you direct me to a web =
source
for instructions?  What else besides the motor would I need to build =
vacuum
system?

If this kind of compressor isn=92t suitable, what kind would be?

=20

Thanks!

=20

Scott Martin

Spokane WA


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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Need y&#8217;alls help </span></font><font size=3D2
face=3DWingdings><span =
style=3D'font-size:10.0pt;font-family:Wingdings'>J</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have a 230-volt compressor motor that came from an =
old
air-conditioning unit.&nbsp; I understand that such a motor might be =
useful for
making a vacuum-bagging system, but I have no idea how to do =
it.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is such a motor what I need for a vacuum-bag =
system?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>If so, how would I put it to such use?&nbsp; Can you =
direct
me to a web source for instructions?&nbsp; What else besides the motor =
would I
need to build vacuum system?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>If this kind of compressor isn&#8217;t suitable, what =
kind
would be?</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks!</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Scott Martin</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
  font-family:Arial'>Spokane</span></font><font size=3D2 =
face=3DArial><span
 style=3D'font-size:10.0pt;font-family:Arial'> </span></font><font =
size=3D2
  face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>WA</span></font></p>

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------------------------------

Date: Fri, 28 Apr 2006 11:49:17 -0700
From: Murrill Barry Maj 107ACS/DO <[EMAIL PROTECTED]>
To: soaring@airage.com
Subject: RE: [RCSE] Compressor motor for vacuum bag system
Message-ID: <[EMAIL PROTECTED]>

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this format, some or all of this message may not be legible.

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One source, of many, I found recently is at
http://www.joewoodworker.com/veneering/welcome.htm
<http://www.joewoodworker.com/veneering/welcome.htm> Barry
Phoenix, AZ

_____ From: Scott and Jennifer Martin [mailto:[EMAIL PROTECTED] Sent: Friday, April 28, 2006 11:39 AM
To: soaring@airage.com
Subject: [RCSE] Compressor motor for vacuum bag system



Need y'alls help :-)

I have a 230-volt compressor motor that came from an old air-conditioning
unit.  I understand that such a motor might be useful for making a
vacuum-bagging system, but I have no idea how to do it.

Is such a motor what I need for a vacuum-bag system?

If so, how would I put it to such use?  Can you direct me to a web source
for instructions?  What else besides the motor would I need to build vacuum
system?

If this kind of compressor isn't suitable, what kind would be?

Thanks!

Scott Martin

Spokane WA


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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=617454718-28042006>One source, of many,&nbsp;I found recently is at <A href="http://www.joewoodworker.com/veneering/welcome.htm";>http://www.joewoodworker.com/veneering/welcome.htm</A></SPAN></FONT></DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=617454718-28042006></SPAN></FONT>&nbsp;</DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=617454718-28042006>Barry</SPAN></FONT></DIV> <DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN class=617454718-28042006>Phoenix, AZ</SPAN></FONT></DIV><BR>
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<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Scott and Jennifer Martin [mailto:[EMAIL PROTECTED] <BR><B>Sent:</B> Friday, April 28, 2006 11:39 AM<BR><B>To:</B> soaring@airage.com<BR><B>Subject:</B> [RCSE] Compressor motor for vacuum bag system<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Need y&#8217;alls help </SPAN></FONT><FONT face=Wingdings size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Wingdings">J</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have a 230-volt compressor motor that came from an old air-conditioning unit.&nbsp; I understand that such a motor might be useful for making a vacuum-bagging system, but I have no idea how to do it.</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Is such a motor what I need for a vacuum-bag system?</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If so, how would I put it to such use?&nbsp; Can you direct me to a web source for instructions?&nbsp; What else besides the motor would I need to build vacuum system?</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If this kind of compressor isn&#8217;t suitable, what kind would be?</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks!</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Scott Martin</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Spokane</SPAN></FONT><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN></FONT><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">WA</SPAN></FONT></P></DIV></BODY></HTML>

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