Zoned heating and air conditioning system

Details Zoned heating and air conditioning system Zoned heating and air conditioning system

1984-08-06

1987-06-16

Cline, William R.

Heat exchange

Movable heating or cooling surface

Rotary drum

236 49, 236 1B, 236 1C, F24F 300, F24F 700

Patent

active

046730290

ABSTRACT:
A building air conditioning and heating system includes an air handling system set up to separately control different zones of a building. The air handling system has a blower connected to an air duct system in the building. At least two thermostats are positioned in different portions of the building for separately controlling the heating or the air conditioning in that portion of the building. A plurality of dampers are positioned in the air duct system, with each damper adapted to be opened and closed by gravity or air pressure. A damper locking means locks each damper in a closed position responsive to actuation by an electrical switch so that one zone of the building can be air conditioned or heated as desired. The thermostat can acutate the dampers and can control the temperature in one zone portion of the building while the other thermostat is disabled. Each damper has an electrical solenoid for locking the damper in one position.

REFERENCES:
patent: 2158628 (1939-05-01), Kuhlman
patent: 2468830 (1949-05-01), Markham
patent: 3127103 (1964-03-01), Grogan
patent: 3297250 (1967-01-01), Capps
patent: 4185769 (1980-01-01), Nezworski
patent: 4277019 (1981-07-01), Shreve

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