Instruction Manual

B-1
OPERATION
V155-S
B-1
Read and understand this entire section before
operating your machine.
SAFETY INSTRUCTIONS
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output terminals or internal wiring.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
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Only qualified personnel should operate this equip-
ment. Observe all safety information throughout this
manual.
GENERAL DESCRIPTION
The Invertec V155-S is an industrial 155 amp arc
welding power source which utilizes single phase
input power, to produce constant current output. The
welding response of this Invertec has been optimized
for stick (SMAW) and Touch Start TIG (GTAW). The
unit is ideal for industrial applications where portability
is important.
The Invertec V155-S is recommended for stick weld-
ing with such popular electrodes as Fleetweld 35,
Fleetweld 37, Fleetweld 180 and LH 78. It features
automatic arc control to adjust the arc force, hot start
and anti sticking. The machine also features soft and
crisp modes.
The Invertec V155-S performs DC Touch Start Tig
Starting with excellent results.
WELDING CAPABILITY
The Invertec V155-S is rated at 155 amps, 16.2 volts,
at 30% duty cycle on a ten minute basis. It is capable
of higher duty cycles at lower output currents
(1)
. If the
duty cycle is exceeded, a thermal protector will shut
off the output until the machine cools. See Technical
Specifications in the Installation Section for other
rated outputs.
The Invertec V155-S is recommended for stick weld-
ing with such popular electrodes as Fleetweld
®
35,
Fleetweld 37, Fleetweld 180 and Jet-LH 78 MR. It fea-
tures adjustable arc control to adjust the arc force and
start.
LIMITATIONS
The V155-S is not recommended for pipe thawing.
(1)
Refer to Technical Specifications in the Installation Section for other ratings.
WARNING
FUMES AND GASES
can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
ARC RAYS
can burn.
• Wear eye, ear and body
protection.
WELDING, CUTTING and
GOUGING SPARKS
can cause fire or explosion
• Keep flammable material away.
• Do not weld, cut or gouge on
containers that have held com-
bustibles.