Lincoln Electric IM622 manual Installing ThE STARTER/OVER- Load SWITCh

A-11 INSTALLATION A-11

INSTALLING ThE STARTER/OVER- LOAD SWITCh

The K1494-2 Starter/Overload switch is used to turn on and off the SF2400 Stationary fan. It is unneces- sary if using a K1669-2 Lamp Kit.

Mount the switch to the wall in a location convenient to the operator.

Route a 120VAC, 1ph, 60hz supply cable into the switch compartment, and a power cable between the switch and the extraction fan. Have a qualified electri- cian make connections per the wiring diagram in the back of this manual. Set the Overload to 10.0A.

INSTALLING ThE OPTIONAL LAMP KIT AND AUTOMATIC START/STOP ARC SENSOR

An optional K1669-2 Lamp Kit for wall-mounted units provides hood-mounted switches for both lamp and SF2400 Extraction Fan. It is used in place of the Starter/Overload switch, and can be combined with a K1670-1 Automatic start/stop arc sensor to automati- cally switch the extraction fan on and off when it sens- es an arc. Installation instructions include directions for mounting both the Lamp Kit and Sensor. If not installing the Auto start/stop feature, skip steps as indicated.

The K1669-2 Lamp Kit includes:

Work Lamp (WL)

36 ft. Connection Cable (NCW 11) Connection Box (CB)

Thermal Relay, 8-12.5A (NTR)

Pop out the sealing plate (Fig. 19A) on the top of the hood with a screwdriver. Remove the six screws (Fig. 19C) and the airflow focus vanes (Fig. 19B). Open the airflow throttle valve (Fig. 19D).

If installing the Automatic start/stop arc sensor: Use a small phillips-head screwdriver to remove the six screws that hold the lamp housing (Fig. 20A) together. Insert the sensor (Fig. 20B) as shown. Route the leads through the lamp housing and out with the lamp leads as shown in Figure 20. Reclose the lamp housing using the six screws.

A B

Fig. 20

Feed the lamp and/or sensor leads through the hole (Fig. 21A) in the top of the hood, and snap the lamp holder into place, top end first. Remount the airflow focus vanes in the open end of the hood.

A B

1

90°

A B

3

6x

2

Fig. 21 C

D Fig. 19 C

SF2400 STATIONARY FAN