Some of the old timers in the chiller business might remember the TONRAC chillers. An interesting point about these machines is the name itself. When this unit was being developed they needed a name, and it was decided that the perfect name would be the perfect refrigeration cycle spelt backards. Therefore the CARNOT cycle spelt backwards is TONRAC. This is just a point of interest to you chiller folks. It is good to see a Chiller form.