RE: Replacing fans in equipment?

["Paul Gale" <groups2@xxxxxxxxxxxxxxxx>]

Good point Peter. Not sure how long there were previously in service
but worth checking to see if new fans would run any quieter.

They seem to run pretty fast even in cold ambient conditions (exhaust air
temp is cool), so I think I could risk a slightly lower cfm?...

Paul.



> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Peter and Jane
> Sent: 20 June 2008 11:41
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Replacing fans in equipment?
>
> Paul
> Obvious question but just sometimes.....
>
> Were the UPSs new?
> Used UPS = worn fan motor bearings = noisey?
> Maybe a new fan of the original type will be an improvement??
> Rgds
> Peter
> ----- Original Message -----
> From: "Jim Noble" <yahoo-groups@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Friday, June 20, 2008 11:29 AM
> Subject: Re: [ukha_d] Replacing fans in equipment?
>
>
> > Paul Gale wrote:
> >> OK, I need to test it and find out what it is...
> >>
> >
> > If it has a model number printed on the hub you can usually
google it
> to
> > find the air throughput in ft^3/minute (cfm) and noise level (dB)
> data,
> > as well as AC/DC and voltage info. You'll want replacement fans
to
> have
> > at least as high a cfm rating (but quieter), as letting either
the
> > batteries or inverter run any hotter is probably a bad thing...
> >
> > Jim
> >
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__________ Information from ESET NOD32 Antivirus, version of virus
signature database 3202 (20080620) __________

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