Lincoln Electric IM10134 COOL ARC 55 S WATER COOLER - Manual (Page 13)

B-2 OPERATION B-2
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
ensure that no water leaks are present. Water leakage
causes poor welding performance, poor cooling perfor-
mance, low welding component life and potential electrical
safety hazards.
• The cooler will automatically turn “ON” when the trigger is
pulled.
• The cooler will automatically turn "OFF" when welding is
not taking place for long periods of time.
• The manual control switch on the front of the cooler can
be used to run the cooler without the “smart” features.
This should be used to prime the system on initial setup
and when changing guns.
• 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.
COOLING EFFICIENCY
The high cooling efficiency of the COOL ARC ® 55 S offers a
cooler, more comfortable weld than conventional air-cooled
procedures as well as leading competitors water cooled sys-
tems.
The COOL ARC ® 55 S 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 tem-
perature affects the coolant temperature of the COOL ARC
®
55 S.
COOL ARC ® 55 S
CO
OL
ANT
CO
OL
ANT
ROOM AIR IN
HOT
AIR
OUT
HOT
AIR
OUT
PUMP
HEAT
EXCHANGER
FAN
RESERVOIR
FLOW
SWITCH
RELAY
FIGURE B.1
Coolant Circulation Diagram
FIGURE B.2