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mrd · 02-10-12, 10:17 AM

A chiller is a system that cools a fluid. A reverse-cycle chiller can also heat the fluid. See wikipedia:
Chiller - Wikipedia, the free encyclopedia

I consider the main distinction being that a fluid, typically water, is used to transfer the heat to and from the system. A typical 'split system' uses refrigerant. Hence all the benefits I described above.

I don't have a diagram, and I believe there are a variety of configurations. My original point was to highlight all of the advantages of a commercial product with a sealed vapor-compression refrigerant circuit and open water connections. From the perspective of a hacker or DIY-er, it doesn't much matter as one can build any kind of system they please

Acuario's thread here:
http://ecorenovator.org/forum/geothe...heat-pump.html
references a Danfoss DHP-A, which is very similar to what I've described. This system takes the isolation of the vapor-compression stage one step further, and provides a plumbable fluid connection for both sides of the heat equation.

02-10-12, 10:17 AM	#3
mrd Apprentice EcoRenovator Join Date: Feb 2010 Location: Milford, DE Posts: 106 Thanks: 5 Thanked 9 Times in 9 Posts	A chiller is a system that cools a fluid. A reverse-cycle chiller can also heat the fluid. See wikipedia: Chiller - Wikipedia, the free encyclopedia I consider the main distinction being that a fluid, typically water, is used to transfer the heat to and from the system. A typical 'split system' uses refrigerant. Hence all the benefits I described above. I don't have a diagram, and I believe there are a variety of configurations. My original point was to highlight all of the advantages of a commercial product with a sealed vapor-compression refrigerant circuit and open water connections. From the perspective of a hacker or DIY-er, it doesn't much matter as one can build any kind of system they please Acuario's thread here: http://ecorenovator.org/forum/geothe...heat-pump.html references a Danfoss DHP-A, which is very similar to what I've described. This system takes the isolation of the vapor-compression stage one step further, and provides a plumbable fluid connection for both sides of the heat equation.