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A-2
SAFETY PRECAUTIONS
Read
this entire installation section before you
start installation.
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.
Turn off the input power to any other equipment
connected to the welding system at the disconnect
switch or fuse box before working on the equipment.
• Do not touch electrically hot parts.
• Always connect the V450-PRO grounding lug
(located inside the reconnect input access door) to
a proper safety (Earth) ground.
----------------------------------------------------------
SELECT SUITABLE LOCATION
Do not use the Invertec in outdoor environments without
appropriate protection. The V450-PRO power source
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.
WARNING
Do not mount the V450-PRO over combustible sur-
faces. Where there is a combustible surface directly
under stationary or fixed electrical equipment, that
surface shall be covered with a steel plate at least
.060" (1.6mm) thick, which shall extend not less than
5.90" (150mm) beyond the equipment on all sides.
Place the welder where clean cooling air can freely cir-
culate in through the rear louvers and out through the
case sides and bottom. Water, Dirt, dust, or any foreign
material that can be drawn into the welder should be
kept at a minimum. Failure to observe these precautions
can result in excessive operating temperatures and nui-
sance shutdowns.
Machines are equipped with F.A.N. (fan as needed) cir-
cuitry. 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
properly cooled.
If desired, the F.A.N. feature can be disabled (causing
the fan to run whenever the power source is on). To dis-
able F.A.N., connect leads 444 and X3A together at the
output of the solid state fan control relay, located on the
back of the Control PC board enclosure. (See Wiring
Diagram)
All manuals and user guides at all-guides.com
INSTALLATION
INVERTEC® V450-PRO
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 V450-PRO with accessories attached to it.
STACKING
V450-PRO machines can be stacked to a maximum of
3 high.
CAUTION
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.
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
Locate the V450-PRO away from radio controlled
machinery.
CAUTION
The normal operation of the V450-PRO may
adversely affect the operation of RF controlled
equipment, which may result in bodily injury or
damage to the equipment.
INPUT CONNECTION
WARNING
Only a qualified electrician should connect the
input leads to the V450-PRO. Connections should
be made in accordance with all local and national
electrical 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
on the following page.
A-2
is located inside
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