Return air flow control for variable air volume system

Details Return air flow control for variable air volume system Return air flow control for variable air volume system

1982-02-23

1983-10-04

Wayner, William E.

Heat exchange

With valve or movable deflector for heat exchange fluid flow

With by-pass of heat exchanger or heat exchanger section

98 33A, 165 16, 236 49, 417 2, B64D 1300, F25B 2900

Patent

active

044071850

ABSTRACT:
A variable air volume (VAV) system in which the inflow of outside air is maintained above a predetermined value by maintaining a substantially fixed negative pressure in the plenum by the use of a static pressure sensor and control system for controlling the speed of the return fan.

REFERENCES:
patent: Re28946 (1976-08-01), Martz et al.
patent: 3402654 (1968-09-01), Berst
patent: 3982583 (1976-09-01), Shavit et al.
Fan Selection & Control, ASHRAE Journal, Neil R. Patterson, 1977.
Variable Air Volume System Controls Milewski, Heating/Piping/Air Conditioning 7, 1977.

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