F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 30/02 (2006.01) F25B 13/00 (2006.01)
Patent
CA 2312175
An air-to-air heat pump having two compressors in parallel in the refrigerant circuit with one being a high temperature low volume compressor that operates in both the heating and cooling mode and the other a low temperature high volume compressor that operates by itself in the heating mode of the heat pump when the ambient air temperature drops below a selected value of about 20 degree F.
Grenier Joseph Antoine Michel
Johnson Stanley E.
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