My Server 2008 instructor was explaining virtuialization and the benefits of such. One of the benefits was how there would be less heat to deal with in the server room(meaning less AC and thusly less electricity to cool the room). I am sure that 80F figure cited by how google likes their data center is to say the least for a room that is "fairly large".
I am willing to look over any data you can present about prefered server room temps, as you know I do have an eye for data and will be fair.
There seems to be an extreme difference of opinion on this subject,with many of the numbers comming from expertshttp://ask.slashdot.org/story/02/10/25/2315218/Whats-the-Proper-Temperature-for-a-Server-Room
Many servers are rated and tested for the higher temps but when a poorly designed room developes a hot spot or a unit at the end of the rack has its temperature too high it is time to lower the room temp overall.
You are correct about one thing, the first time upper management has to come down and check out why a unit is offline that room better be cold. I ask if you are willing to write the check for new equipment because you thought it was too cold in the room,electricity is cheap compared to new hardware. We have a saying over here in the states,lets see if you can find my context "No one ever got fired buying gear from IBM".I will make it easy for you, go big or go home.(meaning a crusade to keep the server room hot is not a well supported career move).
This is a link to a large study that does agree data centers are kept too cold, by http://knol.google.com/k/anonymous/how-data-centers-are-kept-cool/187a6z7rnld7y/2#Edited by PCCstudent - 6/2/11 at 11:39am