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A-2
Read this entire installation section before you
start installation.
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
disconnect switch or fuse box
before working on this equipment.
• Do not touch electrically hot parts.
• Always connect the Power Wave grounding lug
(located inside the reconnect input access door) to
a proper safety (Earth) ground.
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SELECT SUITABLE LOCATION
Place the welder where clean cooling air can freely
circulate in through the rear louvers and out through
the case sides and bottom. Dirt, dust, or any foreign
material that can be drawn into the welder should be
kept at a minimum. Using filters on the air intake to
prevent dirt from building up restricts air flow. Do
not use such filters. Failure to observe these precau-
tions can result in excessive operating temperatures
and nuisance shutdowns.
This machine (above code 10500 only) is equipped
with F.A.N. (fan as needed) circuitry. The fan runs
whenever the output is enabled, whether under
loaded or open circuit conditions. The fan also runs for
a period of time (approximately 5 minutes) after the
output is disabled, to ensure all components are prop-
erly cooled.
If desired, the F.A.N. feature can be disabled (causing
the fan to run whenever the power source is on). To
disable F.A.N., connect leads 444 and X3A together
at the output of the solid state fan control relay, locat-
ed on the back of the Control PC board enclosure.
STACKING
Power Wave machines can be stacked to a maximum
of 3 high. The bottom machine must always be
placed on a firm, secure, level surface. There is a
danger of machines toppling over if this precaution is
not taken.
INSTALLATION
ENVIRONMENTAL PROTECTION
The Power Wave power source is rated IP21S and
should not be subjected to falling water, nor should
any parts of it be submerged in water. Doing so may
cause improper operation as well as pose a safety
hazard. The best practice is to keep the machine in a
dry, sheltered area.
LIFTING
Lift the machine by the lift bail only. The lift bail is
designed to lift the power source only. Do not attempt
to lift the Power Wave with accessories attached to it.
MACHINE GROUNDING
The frame of the welder must be grounded. A ground
terminal marked with the symbol
the reconnect/input access door for this purpose. See
your local and national electrical codes for proper
grounding methods.
HIGH FREQUENCY PROTECTION
If possible, locate the Power Wave away from radio
controlled machinery. The normal operation of the
Power Wave may adversely affect the operation of RF
controlled equipment, which may result in bodily injury
or damage to the equipment.
INPUT CONNECTION
Only a qualified electrician should connect the input
leads to the Power Wave. Connections should be
made in accordance with all local and national electri-
cal codes and the connection diagram located on the
inside of the reconnect/input access door of the
machine. Failure to do so may result in bodily injury
or death.
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Use a three-phase supply line. A 1.75 inch (45 mm)
diameter access hole for the input supply is located on
the upper left case back next to the input access door.
Connect L1, L2, L3 and ground according to the Input
Supply Connection Diagram decal located on the
inside of the input access door or refer to Figure A.1
following.
POWER WAVE 455
is located inside
WARNING
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