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Status indications:
Display
OFF mode. The cooler has been turned off
oo
by the user.
Stand-by mode. The cooler has power and
is ready to function, but the selected weld
- -
mode is not a water cooled operation (STICK
modes), or the unit is initiating at power up.
Alarm mode. The cooler is powered and
ready to start, but operation is prevented due
to an alarm condition being detected. The
alarm ID code is displayed by the power
source UI. The alarm codes displayed on
the cooler are:
•
E43 - coolant stoppage - clogged or
broken hose, torch or bypass hose
missing.
Possible cause: Torch water hoses
need to be primed.
AA
Recommended course of action:
After turning the system ON, press the
COOL-ARC push button to begin
priming procedure.
•
E44 - coolant temperature upper limit.
Possible cause: There is a blockage in
the path of the coolant.
Recommended course of action:
Verify that the coolant path is clear –
that there are no twists, kinks, or pinch-
points in the coolant hoses.
Flashing value during power up – indicates
xx
the cooler software version.
Two digit value during normal operation –
yy
displays the coolant temperature (°C).
This message is displayed if no
nC
communication between the cooler and the
power source is detected.
Scrolling dashed line (clockwise) is displayed
during torch priming operation.
User Interface Push button
The push button on the user interface of the cooler has
two different functions:
Holding the push button in for 3 seconds toggles the
cooler ON and OFF. When the cooler is turned OFF, the
display will shown "oo". In this condition, the cooler can
only be turned ON again by pressing the push button for
3 seconds again, or by cycling input power to the power
source. The power source has no control over the
cooler when it is OFF. It begins communicating with the
cooler when the cooler is turned ON again. If the cooler
is OFF when the power source is turned OFF, it will
begin operation in the ON condition when the power
source is turned on again, and must be turned OFF if the
user does not want the cooler to operate during welding.
Momentarily pressing the COOL-ARC push button will
begin the torch priming procedure and override any
current cooler operation. The cooler will ramp up the
pump speed to maximum and hold it for 30 seconds to
allow the torch to be filled with coolant. During the
priming procedure the temperature and flow / pressure
sensing are disabled. To stop the priming procedure
before the 30 second time limit the push button must be
pressed again - this places the cooler back into normal
Meaning
operating mode.
Maintenance
For any maintenance or repair operations it is
recommended to contact the nearest technical service
center or Lincoln Electric.
performed by unauthorized service centers or personnel
will null and void the manufacturers warranty.
Routine Maintenance
Remove accumulated dust and dirt from the internal
components of the cooler by blowing it out with a low-
pressure air hose or removing the dust and dirt with a
vacuum hose.
In dirty or dusty environments or if biological growth
occurs in the coolant, it may be necessary to flush the
coolant reservoir. Dump the old coolant, rinse the inside
of the reservoir and circulate rinsing solution through the
coolant system. Add new coolant when cleaning is
finished. It is recommended to flush the coolant at least
once a year. A cooling system free from debris offers
increased cooling efficiency and longer pump and torch
life.
NOTE: Pure solutions and mixtures of, or materials (i.e.
towels wetted) with ethylene glycol are toxic to humans
and animals. Special precautions should be taken when
discarding toxic material, do not pour this mixture down
any drain. Contact the local EPA office for responsible
disposal methods or for recycling information.
Heat Exchanger
To maintain maximum cooler efficiency, the heat
exchanger should be kept free of dust and dirt buildup.
Clean the heat exchanger periodically using a vacuum
hose or a low-pressure air line. Avoid placing the unit
near a flux hopper or a flux waste container. A clean
heat exchanger offers better cooling performance and
longer product life. In extremely dirty environments, it
may be necessary to remove the heat exchanger
completely from the cooler and clean the fins with soap
and water. Use care to avoid damaging the fins.
Reservoir Coolant Level
The reservoir volume should be checked daily before
using the cooler. Remove the reservoir fill cap and
check the coolant level. The reservoir is full when the
coolant level is just below the reservoir fill opening.
Keep the reservoir full, especially after disconnecting the
water lines or changing the accessory being cooled.
•
Always disconnect the COOL-ARC machine from
service input power by disconnecting the Power
Source from input power.
•
Always allow the coolant in the system to cool
enough to avoid burn injuries.
•
Avoid contact with contaminated coolant.
waterproof gloves and protective eye wear.
Do not open this machine and do not introduce anything
into its openings. Power supply must be disconnected
from the machine before each maintenance and service.
After each repair, perform proper tests to ensure safety.
A-3
WARNING
Maintenance or repairs
WARNING
WARNING
Wear
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