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A-4
INSTALLATION
INVERTEC DC TIG STARTER
A-4
Figure 2 below shows connection of water-cooled
torches with the required 7/8-RH to 5/8-RH adapter for
the gas fitting. The water/coolant inlet connection for
the torch should be connected directly to the 7/8-LH
water/coolant connection.
FIGURE 2
Connection Diagram for Water-Cooled Torches.
NOTE: All required adapters are included with the DC
TIG Starter kit.
Torch Connection Cover Installation
A torch connection cover has been provided with the
DC TIG Starter. The cover should be installed using
the 4 screws on the case front.
Gas Connection
The inlet gas connection is made at the back of the
starter kit.
Water/Coolant Return Connection
Solenoid Controlled Water/Coolant Return Connection
The DC TIG Starter is shipped with a solenoid in the
coolant path for fluid control. The water/coolant inlet
connection is made at the 5/8-LH connector at the
back of the DC TIG Starter.
Non-Solenoid Controlled Water/Coolant Return
Connection
Use of water coolers which need non-interrupted fluid
flow require the replacement of the DC TIG Starter’s
water solenoid with the fluid connector supplied with
the kit.
Water Solenoid Removal
a. Turn power off to the V300.
5/8 - RH GAS CONNECTION
DC TIG
STARTER
POWER / GAS
CONNECTION
7/8-RH
POWER / WATER
CONNECTION
7/8-LH
WATER-COOLED
TORCH
7/8 - RH TO 5/8 - RH ADAPTER
7/8 - LH POWER / WATER CONNECTION
b. Disconnect all items connected to the DC TIG
Starter from the V300 (input cable, V300 output
cable, torch connection and gas and coolant lines).
c. Uncouple Invertec from DC TIG Starter by remov-
ing 4 connecting fasteners.
d. Detach DC TIG Starter’s wraparound by removing
6 fasteners.
e. Loosen clamp on coolant line then remove line from
solenoid.
f. Remove exterior 5/8-LH connector from solenoid.
g. Disconnect 4 pin mini-molex (P4) from J4 on con-
trol board and cut any tie wraps to free the water
solenoid input leads.
h. Detach water solenoid from center panel by remov-
ing 2 fastening screws.
Coolant Feed Through Connector Installation
a. Insert fitting through vacated hole in case back and
secure with supplied lock washer and hex nut.
Slight clearing of the center panel and case back
may be necessary.
b. Slide coolant hose over fitting and secure with hose
clamp.
c. Secure any loose wires by replacing removed tie
wraps.
NOTE: All water/coolant threads are left-hand
threads.