Lincoln Electric IM439 MAGNUM COOLERS 20-I - Manual (Page 19)

B-1 OPERATION B-1
SAFETY PRECAUTIONS - Even when using the Magnum Cooler in an “on-
demand” application, the power to the Cooler should
be turned off when welding is not taking place for a
long period of time.
- Be certain that the Cooler is on (power switch in the
“ I ” position) before beginning to weld, especially
when using the Cooler in the demand system.
- Never operate the Cooler with the reservoir fill cap
removed.
- Avoid placing the Cooler near areas of extreme
heat.
- Avoid placing the Cooler near a flux hopper or an
area where dust build-up is extreme.
- Avoid kinking or putting sharp bends in any water
lines.
- Keep all water lines clean.
LIGHTED POWER SWITCH
A long life, lighted power switch is located at the left
side on the control panel. When switched “ON”, the
switch will be pressed toward the “
I ” symbol.
Because it will only light when the Cooler is pumping
coolant, the switch serves as an indicator for the
Magnum system monitor. For proper operation, the
switch should beam steadily when coolant is pumping
and remain unlit when flow is stopped. Reference the
Magnum system monitor sections for an explanation.
TURNING THE SYSTEM ON
After filling the reservoir and connecting the coolant
hoses to the Magnum Cooler per the Installation
Section, plug the unit into an electrical receptacle for
start-up operation. Be certain that the power input into
the unit matches the Cooler’s rated input.
You will be able to hear the fan running and feel air
flow out of the back of the unit when the Cooler is
operating. The Cooler will run continuously when
operated without a water solenoid or valve. If a water
solenoid or valve is used, the Cooler will run for a
short period of time until the demand system is acti-
vated and the unit shuts off.
When first starting the unit, check all of the water lines
to insure that no water leaks are present. Water leak-
age causes poor welding performance, poor cooling
performance, low welding component life and poten-
tial electrical safety hazards.
MAGNUM COOLER 10 & 20
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrode with skin or wet clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating gloves.
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FUMES AND GASES can be danger-
ous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
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WELDING SPARKS can cause fire or
explosion.
• Keep flammable material away.
• Do not weld on closed containers.
------------------------------------------------------------------------
ARC RAYS can burn eyes and skin.
• Wear eye, ear and body
protection.
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See additional warning information at
front of this operator ’ s manual.
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WARNING
The following should always be observed when oper-
ating any Magnum Cooler:
- Never operate the Cooler with case off.
- Immersion in water around electrical lines can
cause electrical shock.
- Never place fingers into openings of Cooler. Moving
parts can injure.
- Unplug the Cooler before filling the reservoir.
- Never operate the Cooler with the reservoir fill cap off.
OPERATING PRECAUTIONS
The following should always be observed when oper-
ating any Magnum Cooler:
- Check the Magnum system monitor to verify ade-
quate flow for the applicationr.
- Check the reservoir daily.
- Keep the reservoir full especially after changing any
water lines.