Re: UPS Position In Rack / Cabinet

["brougham Baker" <bro-yahoo@xxxxxxxxxxxxxx>]

Martyn Wendon wrote:
> What's the best position for UPSs in a cabinet?
>
> I'm getting conflicting opinions. Some say that putting UPSs at the
> bottom
> is best as it's generally the coolest place in an enclosure.  Others
> say
> that putting them at the top is best as they are generally the hottest
> pieces of equipment so why let all the heat they produce rise up
> through
> other equipment making that hotter?


Without doubt at the bottom-
1. the weight.
2. the batteries in the ups hate the increased temperature from being at
th=
e
top. Some chats I've seen say the number of cycles at 40C will be less than
a third of at 20.

Brougham