Re: How to get/maintain +17f
If air goes in, It must go out. Its crude but it may work with a supply and return duct. No promises, you need to calculate room cooling load, and product cooling load and compare it to the capacity of the -5F system. You may over cool some of the Roe and not cool some of the roe if you don't have good air distribution.
Re: How to get/maintain +17f
If you are only trying to transfer energy (no direct air transfer), you can look at a number of options, including heat transfer wheel, closed loop fluid system, thermosyphon coils and heat pipes.