PAGE 54 of 84 HU-SOUTHWEST-1480 GAS-FIRED HUMIDAIRE UNIT
© SAMUEL JACKSON, INCORPORATED 2005 ALL RIGHTS RESERVED
14900A LINT FLUE SCANNER
INSTALLATION, SETTINGS AND USE
APPLICATION
The 14900A control is used to determine when cotton is passing through a lint flue. It is used with the
Samuel Jackson Humidaire Unit to operate its water pump only when cotton is being ginned.
The 14900A control has a special mount which allows the 14953 photoelectric infrared scanner to look
through a tiny window at the oncoming flow of air and lint. When cotton is detected, the control closes its
circuit, and turns the water pump on. A built-in time delay keeps the circuit closed even if the presence of
lint is interrupted for a few seconds.
MOUNTING THE CONTROL
The 14900A Lint Flue Scanner should be mounted in a flat area of the lint flue, usually in the riser to the
battery condenser. Avoid locations where elbows and offsets might divert lint away from the control. The
14775 mount fits into a 3 x 4 inch (75 x 100 mm) rectangular hole in the wall of the flue. The stream of air
and lint should blow against the small window.
ELECTRICAL WIRING
Be sure to follow the wiring diagram supplied with the Humidaire Unit. The 3 wires going to the 14900A
control should be in a separate conduit from any power wires.
The diagram above shows the normal setting and wiring of the 14953 Photoelectric Switch, which is part of
the 14900A Lint Flue Scanner. The lower selector determines the operating mode for the scanner. The
setting for the lint flue is LIGHT ON and OFF DELAY.
14953 PHOTOELECTRIC SWITCH
14-3569.4
