Cooling Efficiency - Lincoln Electric COOL ARC 55 Operator's Manual

COOL ARC ® 55 & COOL ARC
The coolant FLOW INDICATOR is accessed by removal of the fill cap.
Actual return flow is directly visible, via the fill opening.
When first starting the unit, check all of the coolant hoses to insure that
no water leaks are present. Water leakage causes poor welding
performance, poor cooling performance, low welding component life
and potential electrical safety hazards.
• 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.
• Never operate the cooler with the reservoir fill cap removed. Unless
checking coolant flow.
• 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 reservoir. Never run pump
dry.
ROOM AIR IN
HEAT
EXCHANGER
FAN
PUMP
HOT
AIR
OUT
COOL ARC 55
® 55 ALUMINUM WATER COOLER
Coolant Circulation Diagram
RESERVOIR
WELDING
GUN OR
TORCH
COOLANT OUT
HEAT IN
PUMP
RESERVOIR

COOLING EFFICIENCY

The high cooling efficiency of the COOL ARC
comfortable weld than conventional air-cooled procedures as well as
leading competitors water cooled systems.
The COOL ARC ® 55 effectively removes the heat of the arc away from
the gun or torch handle and places it into the exiting air flow at the sides
of the cooler. Ambient air temperature affects the coolant temperature
of the COOL ARC ® 55.
For example:
Unlike other water coolers that depend on a bulky reservoir size, the
high efficiency components of the COOL ARC
size to be small. The result is a lightweight, portable unit.
FIGURE B.1
HOT
AIR
OUT
FIGURE B.2
COOLANT IN
FAN
HEAT
EXCHANGER
B-2
OPERATION
® 55 offers a cooler, more
® 55 allows the reservoir
HEAT
OUT