Variable volume air conditioning system with velocity readout at

Details Variable volume air conditioning system with velocity readout at Variable volume air conditioning system with velocity readout at

1987-07-31

1989-06-13

Wayner, William E.

Automatic temperature and humidity regulation

Ventilator type

Electrically actuated

236 94, 165111, F24F 700

Patent

active

048384844

ABSTRACT:
A variable volume air conditioning system of the type having a duct for distributing air to a room, a damper for regulating the flow of air through the duct, and a damper actuator responsive to damper drive control signals for controlling the damper. A thermostat located in the room provides a stat signal representative of a desired flow of air through the duct. An actual flow signal representative of the actual flow of air through the duct is provided by a sensor. The stat signal and actual flow signal are compared by a comparator which provides the damper drive control signals as a function of the comparison. A wire transmission line couples the actual flow signal from the sensor to the thermostat so that service personnel can easily monitor system performance.

REFERENCES:
patent: 3719321 (1973-03-01), McNabney
patent: 3941310 (1976-03-01), Travaglio et al.
patent: 4077567 (1978-03-01), Ginn et al.
patent: 4147298 (1979-04-01), Leemhuis
patent: 4263931 (1981-04-01), Bramow et al.
patent: 4264035 (1981-04-01), Maxson et al.
patent: 4308992 (1982-01-01), Horton
patent: 4406397 (1983-09-01), Kamata et al.
patent: 4413514 (1983-11-01), Bowman
patent: 4422571 (1983-12-01), Bowman
patent: 4428529 (1984-01-01), Bentsen
patent: 4467956 (1984-08-01), Kreuter

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