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Old 01-12-14, 11:14 AM   #5
BeerGrylls
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Join Date: Dec 2013
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Jeff, none of those, it is one step smaller, 07 (from 7000btu in cooling), but physically it appears to be a 1 ton unit, with different software, maybe different EXV, but the size of the HX looks to be identical to the 1 ton units. It is called something like MSX07HFNR or something like that. I studied similar units with the same compressor, they are branded by a large number of brands, including Toshiba I think. The 09 and 12 models have lower COP, but this rare unit with 1 ton guts says it has 5.56 in heating. Inside it looks to have same guts as premium units, including Chinese components, identical to those found in Toshibas, Sanyos, Mitsus etc. I cannot measure the real COP, but even if not 5.56 it is pretty high. Before it, a resistance heater labeled 1.5kw wasn't able to deliver any kind of comfort, the pump is a world of a difference with about 300W/hr or less.
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