Direct gas-fired make-up air system

Details Direct gas-fired make-up air system Direct gas-fired make-up air system

F - Mech Eng,Light,Heat,Weapons

24

H

F24H 3/04 (2006.01) B05B 15/12 (2006.01) F24H 9/18 (2006.01) F24H 9/20 (2006.01)

Patent

CA 2684138

It is an object of the present invention to provide a direct gas-fired make-up air system comprising an inlet and an outlet to transport outside air to the inside (of a building or spray booth) through a duct, said duct comprising a variable speed fan, at least one burner for fuel combustion, at least one probe to measure airflow at said burner, at least one damper controlled by an actuator for airflow adjustment and a controller programmed to adjust said damper and said fan to stabilize airflow at said burner for complete combustion of gas in said burner, said controller being configured to cause said fan to accelerate from a stationary state to an operational speed at a full acceleration rate of said fan, and to cause said burner to begin combustion at said operational speed, whereby start-up time is decreased for burner ignition such that cold air inflow during the startup process is minimized.

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