Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1977-09-06
1979-04-17
Davis, Jr., Albert W.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62 80, 62156, 62160, 62324, F25B 1300
Patent
active
RE0299669
ABSTRACT:
A heat pump having an auxiliary outdoor coil equipped with heating means preventing the surface temperature during the heating cycle from falling below 32.degree. C. The heating means comprises an electrical resistance heater in thermal contact with the fins of the outdoor coil such that heat is transferred to the fins by conduction. The system incorporates means to permit functioning immediately upon return to the heating cycle from a cooling cycle even though the pressure in the receiver of the system initially exceeds that in the indoor coil. Additionally, the system incorporates means for protecting the compressor from liquid floodback when changeover occurs from heating to cooling.
REFERENCES:
patent: 3135317 (1964-06-01), Goettl
patent: 3159981 (1964-12-01), Husbey
patent: 3189085 (1965-06-01), Eberhart
patent: 3209551 (1965-10-01), Jentet
patent: 3365902 (1968-01-01), Nussbaum
patent: 3466888 (1969-09-01), Kyle
patent: 3529659 (1970-09-01), Trask
patent: 3783635 (1974-01-01), Perez
patent: 3786227 (1974-01-01), Seipp et al.
Davis Jr. Albert W.
Halstead Industries, Inc.
Murray Thomas H.
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