ESAB Automatic Fan Kit Installation guide

Brand: ESAB

Model: Automatic Fan Kit

Category: Car kits

Type: Installation guide

This option when installed in power source al-

lows the fan to operate only during welding op-

eration and for a few minutes after the arc has

been extinguished.

This kit includes the following components:

1 - Relay, Time Delay (K1), 11 Pin - 952590

1 - Base, Relay, 11 Pin - 952589

2 - Sensor Proximity (S1) - 34372

12 - Tywrap Medium

3 - Tie-Base, Snap-In

2 - Screw #8-32 x 1/2 Self Tap

Before installing this kit, make sure all pri-

mary input power to the power source is

disconnected and/or lock out procedures

are in place.

NOTE: This kit can only be used on units of

Ser. No. MX-I709001 or higher.

To install kit, proceed as follows:

1. Loosen the four top panel screws and re-

move top panel.

2. Locate and disconnect the fast-on terminals

on the wires connecting the fan motor to the

input terminal board (TB1).

3. Attach the relay base to the top of the fan

bracket using the two supplied #8 self tap

screws. Holes for the self tap screws are

provided on the bracket. Make sure the red,

white and two black wires are on the side

facing the power switch.

F-15-391-A

June, 1998

Installation Instructions

AUTOMATIC FAN KIT

P/N 36707

for 352cv, 352cc, 452cv, 452cc, 452cvcc and 652cccv

DC Welding Power Sources

4. Route the red, white and black leads from

the relay base terminals #1, #3 and #10

along with the cables running from the power

switch to the fan connectors.

5. Connect one black lead and the white lead

from the relay base, terminals #3 and #10,

to the mating connectors of the fan motor

leads disconnected in step #2.

6. Connect the red lead and the other black

lead from the relay base, terminals #1 and

#10, to the mating connectors of the leads

going to the TB1 input terminal which were

originally connected to the fan leads and

disconnected in step #2.

7. Assemble the U-shape current sensor(s)

around the large secondary cable(s) con-

necting the transformer or inductor to the

negative output stud(s) and next to the trans-

former or inductor connection(s) (see Fig.

3). Two required on the 352cv and the

452cvcc. Secure each sensor with tywrap.

8. Connect the black wires of the sensor(s) to

the blue wires of the relay base, terminals

#5 and #6. Route the blue wires along the

right side A-frame leg.

9. Using the supplied cable ties and bases,

tie up any loose wires. Do not allow any

wires to run near the fan blade or run with

the input ground wire.

10. Plug the time delay relay into the relay base.

Note that the center post of relay must align

with the notched hole of the base. Set the

time on the relay to the maximum setting

(approximately 6 minutes).

11. Reinstall the top cover and tighten the four

mounting screws.

12. If only one sensor is used save the extra as

a spare.

F-15-391-A 6/98

Fig. 2 - Wiring Diagram - Automatic Fan Kit

Fig. 1 - Schematic Diagram - Automatic Fan Kit

SECOND SWITCH

USED ON 352cv

AND 452cvcc

Fig. 3 - View of Sensors Assembled

CONNECTIONS TO INDUCTOR

OR TRANSFORMER

SENSORS

SECONDARY CABLES

1
2

ESAB Automatic Fan Kit Installation guide

Brand: ESAB

Model: Automatic Fan Kit

Category: Car kits

Type: Installation guide

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