Changing fluid or refilling is not necessary with well designed systems, because they are made to avoid or minimize losses (including vapor) or contamination. We found that spilling liquid while pouring in and out of containers is by far biggest source for losses, and we have integrated ways to avoid spills on initial filling, along with many other technical features that are designed to keep fluid in the tank.
Slashdot Mirror
Are you looking at the same pictures? At least half of the pictures is a condenser.
http://www.datacenterknowledge.com/wp-content/uploads/2013/11/applied-control-novec.jpg
Allied Control has been using Novec 649 which has the same MSDS as 3M Novec 1230 Fire Protection Fluid.
Not only solid state storage, also helium-filled hard drives (such as the WD 6TB Ultrastar He6).
Changing fluid or refilling is not necessary with well designed systems, because they are made to avoid or minimize losses (including vapor) or contamination. We found that spilling liquid while pouring in and out of containers is by far biggest source for losses, and we have integrated ways to avoid spills on initial filling, along with many other technical features that are designed to keep fluid in the tank.
From Allied Contro's FAQs:
http://www.allied-control.com/immersion-cooling/frequently-asked-questions-faqs/item/4-do-i-have-to-change-or-refill-the-liquid
The key difference in open bath immersion cooling is to keep tanks under ambient pressure.