English
English
7
The following should always be observed when operating
the
COO LARC
®
50
:
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.
Never operate the cooler with the reservoir empty.
Operating Precautions
The following should always be observed when operating
any
COOL ARC
®
50
cooler:
Check the reservoir daily.
Keep the reservoir full especially after changing any
water lines.
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.
Turning The System ON
After filling the reservoir and connecting the coolant hoses
to the
COOL ARC
®
50
cooler per the Installation
Sections, be certain that the power input into the unit
matches the cooler’s rated input. Set correct power supply
using switch on the rear. Next plug the unit into an
electrical receptacle for start-up operation.
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.
When first starting the unit, check all of the water lines to
insure that no water leaks are present. Water leakage
causes poor welding performance, poor cooling
performance, low welding component and pump life and
potential electrical safety hazards.
Cooling Efficiency
1. COOLANT
RETURN
2. COOLANT
IN
TAKE
3. PUMP
4. FAN
5. HEAT
EXCHANGER
6. HEATED AIR OUT
7. COOLANT
IN
8. COOLANT
OUT
9. RESERVOIR
Figure 3
Circulation of COOL ARC
®
50
The high cooling efficiency
COOL ARC
®
50
offers a
cooler, more comfortable weld than conventional air-
cooled procedures as well as leading competitors water
cooled systems. Radiator improves heat convection with
minimal air flow restriction.
The
COO LARC
®
50
cooler effectively removes the heat
of the arc away from the torch handle and places it into
the exiting air flow at the back of the cooler. Ambient air
temperature can affect the cooling parameters of the
COOL ARC
®
50
.
For example:
COOL day (50°F, 10°C): More HEAT is transferred
from the water in the heat exchanger to the air. The
water is COOLER and more HEAT is transferred from
the torch to the water.
RESULT: THE TORCH FEELS COOLER
HOT day (100°F, 38°C): Less HEAT is transferred
from the water in the heat exchanger to the air. The
water is HOTTER and less HEAT is transferred from
the torch to the water.
RESULT: THE TORCH FEELS HOTTER.
Unlike other water coolers that depend on bulky reservoir
size, the high efficiency components of
COOL ARC
®
50
cooler allows the reservoir size to be small. The result is a
lightweight, portable unit.
Cooling Efficiency - Recommended Values
COOL ARC
®
50
ref: K14050-1
Max welding current TIG 100% duty cycle
500A
Max welding current MIG 100% duty cycle
500A
Transport
To avoid freeze damage and water leakage during
transport, the coolant has to be removed from the cooler’s
reservoir.
