Lincoln Electric COOL ARC IM911 - Manual (Page 13)

B-1 OPERATION B-1
• Keep the reservoir full especially after changing any
water lines.
• The cooler should be turned "OFF" when welding is
not taking place for long periods of time.
• Be certain that the cooler is "ON" (power switch in
the " l " position) before beginning to weld.
• Unless checking coolant flow, 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 and free of any blockage.
• Do not operate cooler without coolant in reser-
voir. Never run pump dry.
TURNING THE SYSTEM "ON"
After connecting the COOL ARC® 40 per the installa-
tion instructions above, plug the unit into a
International 230V electrical receptacle for start-up
operation. Be certain that the power input into the unit
matches the cooler's rated input.
The POWER SWITCH is located on the right side of
the control panel. The cooler will be "ON" when
pressed to " l " and "OFF" when pressed to " O ".
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 unless it is
plugged into a switched receptacle on the power
source.
The coolant FLOW INDICATOR is accessed by
removal of the fill cap. Actual return flow is directly vis-
ible, via the fill opening with the unit in the vertical or
horizontal position.
When first starting the unit, check all of the coolant
hoses to insure that no water leaks are present.
Water leakage may causes poor welding perfor-
mance, poor cooling performance, low welding com-
ponent life and may cause electrical safety hazards.
COOL ARC® 40
PRODUCT DESCRIPTION
The COOL ARC® 40 is a stand alone re-circulation
cooling system designed for use with water-cooled
TIG, MIG, PAC (Plasma Arc Cutting) and PAW
(Plasma Arc Welding) guns and torches. The coolant
"IN" and "OUT" connections are 5/8-18 left-hand
female threads which match the standard connector
nut of domestic water hoses (CGA style) and water-
cooled TIG torches. The COOL ARC® 40 is a continu-
ous duty cooler.
The overall size and shape of the cooler is identical to
the Magnum 20. The COOL ARC® 40 can operate in
either the vertical or horizontal position. The COOL
ARC® 40 is very easy to use and understand with
only one power switch on the control panel. The cool-
er has an International 230V power input receptacle,
making it very easy to power up. Adding coolant to the
reservoir is simple and connecting to the coolant "IN"
and "OUT" connections are easily made with an
adjustable wrench.
The COOL ARC® 40 coolant flow circulates through a
heat exchanger to remove heat energy from the
coolant. The coolant flow is then deposited into the
coolant reservoir. The pump draws its coolant supply
from the coolant reservoir and delivers coolant to the
welding torch or gun. Refer to Figure 6.
RECOMMENDED PROCESSES AND EQUIPMENT
Recommended Processes, Equipment and
Accessories. The COOL ARC® 40 is designed for use
with water-cooled TIG, MIG, PAC (Plasma Arc
Cutting) and PAW (Plasma Arc Welding) guns and
torches. The COOL ARC® 40 can be used with MIG
wire feeders and power sources as well as TIG power
sources.
Observe the following when operating the COOL
ARC® 40:
• High voltage typical of welding operations can kill.
• Immersion in water around electrical lines can cause
electrical shock.
• Moving parts can injure. Never place fingers into the
openings of the Cooler.
• Never operate the cooler with any case parts off or
removed.
• Unplug the cooler before removing the external case
when servicing the unit.
• Unplug the cooler before filling the reservoir.
• Hot coolant can burn skin. Always be sure coolant is
NOT HOT before servicing the cooler.
• Do not pour used ethylene glycol coolant down the
drain.
• Do not remove the pump relief valve's 3/4" hex nut
or attempt to adjust the relief valve setting.
• Check the coolant reservoir level daily.