Home » Public Forums » GMCnet » [GMCnet] Viair Compressor Duty Cycle
| [GMCnet] Viair Compressor Duty Cycle [message #69624] |
Mon, 04 January 2010 16:18  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
I just got the email below from Viair.
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: Lance Martz [mailto:lancem@viaircorp.com]
Sent: Tuesday, 5 January 2010 9:02 AM
To: 'Rob Mueller'
Subject: RE: Duty Cycle
Rob,
The 275C is 25% duty at 100 PSI.
Duty cycle is tested at 100 PSI and 72 degrees ambient temperature.
We must rate duty cycle at a constant temperature and pressure, since these
are the two variables that affect duty cycle most directly.
Using this rate, a 25% duty compressor can be operated for 10 minutes, and
should be allowed to rest for 30 minutes following a 10 minute run cycle.
If the temperature is above 72 degrees Fahrenheit, you may experience
shorter run times.
If the temperature is below 72 degrees Fahrenheit, you may experience longer
run times.
Either way, the compressor is equipped with a thermal overload protection
circuit that will cut power to the unit if overheated. When cooled
adequately, the compressor can be re-started as usual.
Thanks,
Lance Martz
Marketing Manager
VIAIR Corporation
tel: 949-585-0011
fax: 949-585-0188
email: lancem@viaircorp.com
-----Original Message-----
From: Rob Mueller [mailto:robmueller@iinet.net.au]
Sent: Wednesday, December 30, 2009 3:50 PM
To: lancem@viaircorp.com
Subject: RE: Duty Cycle
Lance,
Yes and no.
I appreciate your response and understand that a compressor with a 100% duty
cycle would work (obviously), however, I also wanted to know:
“How long can I run the 275C before I need to shut it down and how long will
I have to leave it off to cool down?”
Thanks,
Rob Mueller
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Viair Compressor Duty Cycle [message #69628 is a reply to message #69624] |
Mon, 04 January 2010 17:13  |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Man,
If you need more than 4 minutes of air, you in a heap 'o trouble!
On Mon, Jan 4, 2010 at 3:18 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> G'day,
>
> I just got the email below from Viair.
>
> Rob Mueller
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
> -----Original Message-----
> From: Lance Martz [mailto:lancem@viaircorp.com]
> Sent: Tuesday, 5 January 2010 9:02 AM
> To: 'Rob Mueller'
> Subject: RE: Duty Cycle
>
> Rob,
>
> The 275C is 25% duty at 100 PSI.
>
> Duty cycle is tested at 100 PSI and 72 degrees ambient temperature.
>
> We must rate duty cycle at a constant temperature and pressure, since these
> are the two variables that affect duty cycle most directly.
>
> Using this rate, a 25% duty compressor can be operated for 10 minutes, and
> should be allowed to rest for 30 minutes following a 10 minute run cycle.
>
> If the temperature is above 72 degrees Fahrenheit, you may experience
> shorter run times.
>
> If the temperature is below 72 degrees Fahrenheit, you may experience longer
> run times.
>
> Either way, the compressor is equipped with a thermal overload protection
> circuit that will cut power to the unit if overheated. When cooled
> adequately, the compressor can be re-started as usual.
>
> Thanks,
>
> Lance Martz
> Marketing Manager
> VIAIR Corporation
> tel: 949-585-0011
> fax: 949-585-0188
> email: lancem@viaircorp.com
>
>
> -----Original Message-----
> From: Rob Mueller [mailto:robmueller@iinet.net.au]
> Sent: Wednesday, December 30, 2009 3:50 PM
> To: lancem@viaircorp.com
> Subject: RE: Duty Cycle
>
> Lance,
>
> Yes and no.
>
> I appreciate your response and understand that a compressor with a 100% duty
> cycle would work (obviously), however, I also wanted to know:
>
> “How long can I run the 275C before I need to shut it down and how long will
> I have to leave it off to cool down?”
>
> Thanks,
> Rob Mueller
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] Viair Compressor Duty Cycle [message #69648 is a reply to message #69628] |
Mon, 04 January 2010 20:41 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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Steven Ferguson writes...
> Man,
> If you need more than 4 minutes of air, you in a heap 'o trouble!
Not if you are filling an early coach's big tank and air bags from
dead empty. That can take more than four minutes. But not more than
10.
Rick "whose rebuilt Dana required 7 or 8 minutes to fill from empty"
Denney
'73 230 Ex-Glacier "Jaws"
Northern Virginia
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'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Viair Compressor Duty Cycle [message #69680 is a reply to message #69628] |
Tue, 05 January 2010 09:50 |
Jim Bounds
Messages: 842
Registered: January 2004
Karma: 0
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Senior Member |
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That unit is too small for how important having on board air is, you must start at the 350C level or do not invest your $. My opinion,
Jim Bounds
-------------------------
----- Original Message ----
From: Steven Ferguson <botiemad11@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, January 4, 2010 6:13:04 PM
Subject: Re: [GMCnet] Viair Compressor Duty Cycle
Man,
If you need more than 4 minutes of air, you in a heap 'o trouble!
On Mon, Jan 4, 2010 at 3:18 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> G'day,
>
> I just got the email below from Viair.
>
> Rob Mueller
> Sydney, Australia
> AUS '75Â Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
> -----Original Message-----
> From: Lance Martz [mailto:lancem@viaircorp.com]
> Sent: Tuesday, 5 January 2010 9:02 AM
> To: 'Rob Mueller'
> Subject: RE: Duty Cycle
>
> Rob,
>
> The 275C is 25% duty at 100 PSI.
>
> Duty cycle is tested at 100 PSI and 72 degrees ambient temperature.
>
> We must rate duty cycle at a constant temperature and pressure, since these
> are the two variables that affect duty cycle most directly.
>
> Using this rate, a 25% duty compressor can be operated for 10 minutes, and
> should be allowed to rest for 30 minutes following a 10 minute run cycle.
>
> If the temperature is above 72 degrees Fahrenheit, you may experience
> shorter run times.
>
> If the temperature is below 72 degrees Fahrenheit, you may experience longer
> run times.
>
> Either way, the compressor is equipped with a thermal overload protection
> circuit that will cut power to the unit if overheated. When cooled
> adequately, the compressor can be re-started as usual.
>
> Thanks,
>
> Lance Martz
> Marketing Manager
> VIAIR Corporation
> tel: 949-585-0011
> fax:Â 949-585-0188
> email:Â lancem@viaircorp.com
>
>
> -----Original Message-----
> From: Rob Mueller [mailto:robmueller@iinet.net.au]
> Sent: Wednesday, December 30, 2009 3:50 PM
> To: lancem@viaircorp.com
> Subject: RE: Duty Cycle
>
> Lance,
>
> Yes and no.
>
> I appreciate your response and understand that a compressor with a 100% duty
> cycle would work (obviously), however, I also wanted to know:
>
> “How long can I run the 275C before I need to shut it down and how long will
> I have to leave it off to cool down?”
>
> Thanks,
> Rob Mueller
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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