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Setup Guide

Getting Started

SELECT THE PROPER TIG POLARITY AND CONNECTIONS.

Selecting polarity for TIG is quite simple. The torch will always be
connected to the negative (

) output terminal located on the right.

This is whether it is welding in DC or in AC. Once the TIG torch is in
the negative terminal, there is no need to ever change it. Selecting
the wrong polarity with TIG will quickly consume your tungsten. It
will ball up and draw back to the collet body after only a few seconds
when the arc is initiated, especially when higher amperages are used.
Many times the arc will even be hard to start, since the HF starting
energy would be flowing the wrong way. Of course that means the
work clamp is in the positive (+) terminal on the left

The TIG torch switch or the Foot Pedal is connected to the 7 pin

control connector. This allows you to select 2T or 4T control with

the torch switch OR foot pedal control. Since there is only one con-

nector, you will need to determine which operation you will use and

select either the TIG torch switch or the Foot Pedal and plug it in.

KNOW THE DIFFERENCE BETWEEN AN AIR COOLED AND
WATER COOLED TORCH.

An air

cooled and water

cooled torch connects differently. An air

cooled torch for this unit will have one line exiting from the DINSE
Connector. This is the gas/argon line. The water cooled torch will
have 3 lines. Two descending from the torch, and one exiting from
the DINSE type connector. Traditionally, the black line descending
down from the torch will be the argon line. (Some brands vary

WARNING!

A water

cooled torch must be operated with a water

cooler or per-

manent damage will occur to the torch. Any operation without water
can damage the torch. There is no safe amp limit for operation with-
out water. If you have a water cooled torch and no cooler, you must
order a cooler before you use the torch, or purchase a separate air

cooled torch. If an air cooled torch is purchased, observe the amp
limits of the torch. The largest air

cooled torch (26 series) maximum

amperage at 60% duty cycle is 200A DC, and 175 AC. If Amperages
are to be welded over that, you must purchase a water cooler. Torch-
es operated without water, or sustained amperage over their rating
and duty cycle, are not eligible for warranty replacement. Always
match the torch to the job. Usually most users find that one torch is
not enough and several torches may need to be purchased to suit
different welding applications. Each torch size/class has different
amp limitations. Know these limitations before using!

in color coding, so match the color codes of the torch to the cooler
couplings for best results). The line exiting from the DINSE connect-
or is no longer a gas line but a water line. Traditionally this line is
the return line to the water cooler. The remaining line will be the
input line from the water cooler. If in doubt, blow through the torch
lightly with compressed air to determine torch flow through the hos-
es. Some NOVA torches use the line from the DINSE connector as
the input. Follow the color coding used by NOVA.

Where Do I Connect The TIG Torch?

Air

Cooled TIG Torch

NOTICE: Choose between the torch switch operation (2T/4T) or the

foot pedal operation. Both cannot be used at the same time.

Argon

Line

Control Cable

TIG Torch

Work Clamp

TIG Torch Switch

2T/4T