Installation And Operator Instructions; Product Description - Lincoln Electric COOLARC-25 Bedienungsanleitung

CYLINDER MAY EXPLODE IF DAMAGED: Use only compressed gas cylinders containing the
correct shielding gas for the process used and properly operating regulators designed for the gas and
pressure used. Always keep cylinders in an upright position securely chained to a fixed support. Do
not move or transport gas cylinders with the protection cap removed. Do not allow the electrode,
electrode holder, work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders
must be located away from areas where they may be subjected to physical damage or the welding
process including sparks and heat sources.

Installation and Operator Instructions

Read this entire section before installation or operation
of the machine.

Product Description

COOLARC-25 cooler is a stand alone recirculating
cooling system designed for use with water cooled TIG,
MIG, PAC (Plasma Arc Cutting) and PAW (Plasma Arc
Welding). Additional applications include resistance
welding, water cooled inductive heating.
The fittings located on the back of the COOLARC-25 are
two a female left-hand threaded quick water fittings.
(type 21KATS09MPX). Quick Connect Water Adapter
converting quick water fitting to a male 5/8"-18 left hand
hose fitting is supplied with each COOLARC-25. The
cooler is also equipped with a bracket so it can be
mounted at the rear of a Lincoln power source, to the
dual cylinder undercarriage.
COOLARC-25 cooler is designed for use with all water-
cooled TIG and medium duty MIG torches and guns.
The COOLARC-25 coolers bring new technology in the
areas of pump, heat exchanger and reservoir designs to
the water cooler market. These technologies allow the
COOLARC-25 coolers to be lighter in weight, lower in
energy consumption.
Warranty
Warranty for this product is 3 year after the date of
purchase. For any warranty claim, contact a certified
Lincoln service center.
Installation
FIGURE 1
Coolant INLET and OUTLET fittings are placed at the
rear of the unit (A). The right side fitting is marked
"coolant out" (supplies coolant to the welding
equipment); the left side one is marked "coolant in"
(takes warm coolant from the welding equipment).
The FILL CAP of the coolant reservoir is on the top of
the unit (B). Fill Cap can be removed by twisting it off.
The coolant FLOW INDICATOR is accessed by removal
of the reservoir fill cap. Actual return flow is directly
visible by the fill opening (C) with the unite in the vertical
position.
Coolant volume can be monitored through sight window
on the front panel (D). The maximum coolant level is
indicated by the upper marker, the minimum level by the
lower one.
Air flow louvers (E): Design of he front case allows for
ease access to internal parts at repairing. Air flow
louvers secure adequate air circulation. The louvers on
the front of the case allow to suck in cold air from bottom
of the unit. Hot air is removed by the side and rear
louvers.
Filling The Reservoir
Proper Coolant Addition
Acorox is recommended coolant for COOLARC-25.
For use above freezing: Tap, distilled, deionized, mineral
water. For use below freezing: water and pure ethylene
glycol mixture (10% glycol between at 0°C and 30% at -
15°C).
DO NOT USE PREPACKAGED WELDING INDUSTRY
COOLANTS. These coolants may contain oil-based
substances which attack the plastic components in the
pump of the COOLARC-25 cooler and severely reduce
pump life. Once added to the cooler, the substances are
virtually impossible to purge from the water lines and
heat exchanger.
To avoid freeze damage and water leakage in shipment,
every COOLARC-25 unit is delivered empty with no
coolant in the system. To fill the unit, locate the plastic
reservoir fill cap at the front middle of the unit.
NOTE: The unit can be filled only vertically.
UNPLUG THE COOLER BEFORE FILLING THE
RESERVOIR.
Filling:
Tilt the unit backward and pour 8,5 liters of coolant into
the reservoir fill hole through a funnel.
If 2,5 liter antifreeze fill bottle or fill bottle is available, tilt
the unit forward until the bottle mates with the reservoir
A-2
WARNING
WARNING
or