Safety Precautions; Select Suitable Location; Stacking; Tilting - Lincoln Electric CV-655 Operator's Manual

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Read entire installation section before starting
installation.

SAFETY PRECAUTIONS

WARNING
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the discon-
nect switch or fuse box before working on
this equipment.
• Turn the Power switch on the CV-655
"OFF" before connecting or disconnect-
ing output cables, wire feeder or remote
connections, or other equipment.
• Do not touch electrically hot parts.
• Always connect the Idealarc CV-655
grounding terminal (located on the welder
near the reconnect panel) to a good
electrical earth ground.

SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely
circulate in through the front louvers and out through
the rear louvers. 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
nuisance shut-downs.

STACKING

The CV-655 may be stacked three-high provided the
bottom machine is on a stable, hard, level surface. Be
sure that the two pins in the roof fit into the slots in the
base of the CV-655 above it.

TILTING

Do not place the machine on a surface that is inclined
enough to create a risk of the machine falling over.
ELECTRICAL
INPUT CONNECTIONS
Before installing the machine check that the input sup-
ply voltage, phase, and frequency are the same as the
voltage, phase, and frequency as specified on the
welder nameplate.
Use input wire sizes that meet local electrical codes or
see the Technical Specifications page in this manu-
al.
INSTALLATION
INPUT POWER SUPPLY
CABLE WITH BUSHING
OR BOX CONNECTOR
FIGURE A.1 ELECTRICAL INPUT CONNECTIONS
Input power supply entry is through the hole in the
Case Back Assembly. See Figure A.1 for the location
of the machine's input cable entry opening, Input
Contactor (CR1), and reconnect panel.

FUSE AND WIRE SIZES

Protect the input circuit with the super lag fuses or
delay type circuit breakers listed on the Technical
Specifications page of this manual for the machine
being used. They are also called inverse time or ther-
mal/magnetic circuit breakers.
DO NOT use fuses or circuit breakers with a lower
amp rating than recommended. This can result in
"nuisance" tripping caused by inrush current even
when machine is not being used for welding at high
output currents.

GROUND CONNECTION

Ground the frame of the machine.
terminal marked with the symbol (
the case back of the machine near the input contactor.
Access to the input box assembly is at the upper rear
of the machine. See your local and national electrical
codes for proper grounding methods. Use grounding
wire sizes that meet local electrical codes or see the
Technical Specifications page in this manual.
CV-655
INPUT
CONTACTOR (CR1)
RECONNECT
PANEL ASSEMBL Y
A ground
) is located inside
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