Lincoln Electric IM438-B manual Filling The Reservoir, Water Line Connection, Installation

A-4 INSTALLATION A-4

The case front sheet metal design allows for ease of access to repair all internal components. The Phillips head fasteners used to secure the casing match the style of fasteners used in the pump head and other major components. In this manner, an operator can repair all major components in the unit using just a Phillips head screwdriver. The case back trapezoidal shape eliminates the possibility of the exit airflow of the Cooler being choked when the Cooler is operated lying horizontally. The exiting airflow is also pushed back away from the unit so that hot air does not recir- culate through the louvers in the case front.

A blow molded, high density one piece polyethylene housing serves as both the reservoir and support frame for the Coolers. The use of polyethylene plastic gives a design that is lightweight and durable.

When using the Magnum Cooler with other products, consult the manufacturer’s recommendations for coolant. Do not use oil based coolants.

The unit can be filled either vertically or horizontally.

UNPLUG THE COOLER BEFORE FILLING THE RESERVOIR.

Upright: Tilt the unit backward and pour 2 gallons (8.0 liters) of coolant into the reservoir fill hole through a funnel.

or

If 1 gallon (4 liters) antifreeze or fill bottle is available, tilt the unit forward until the bottle mates with the reservoir fill hole. Then tilt the unit backward until the fill bottle is emptied. Fill the unit with 2 gallons (8 liters) of coolant.

FILLING THE RESERVOIR

PROPER COOLANT ADDITION

FOR USE ABOVE FREEZING: Tap, distilled, deionized, mineral water, or well water.

FOR USE BELOW FREEZING: 50% water and 50% automotive antifreeze mixture such as Prestone, Peak or Zerex or 50% water and 50% pure ethylene glycol mixture or any water alcohol mixture.

DO NOT USE: Prepackaged welding industry coolants. These coolants may contain oil-based substances which attack the plastic components in the pump of the Magnum 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 ship- ment, every Cooler 10-I and 20-I unit is delivered empty with no coolant in the system. To fill the unit, locate the plastic snap-on reservoir fill cap at the front middle of the unit. Remove the fill cap by pressing the center of the cap inward while pulling at the tab on the outer edge.

NOTE: The unit can be filled either vertically or hori- zontally. UNPLUG THE COOLER BEFORE FILLING

THE RESERVOIR.

For best results when using the Magnum Cooler with Lincoln guns or torches, use distilled, deionized or demineralized water, although if not available, tap water can be used. If protection from freezing is desired, use a 1 gallon (4 liter) automotive antifreeze and 1 gallon (4 liter) tap water mixture. An alcohol or glycol mixture with water is also acceptable.

Lying down: Carefully add 2 gallons (8.0 liters) of coolant through a funnel into the reservoir fill hole.

AVOID SPILLING COOLANT INTO THE FRONT CASING OF THE UNIT.

Unit will be full when coolant lies just below the reser- voir opening with the unit in its upright position.

NOTE: DO NOT ADD MORE THAN 2 GALLONS (8 LITERS) OF COOLANT INTO THE RESERVOIR. The fill cap contains a pressure release air hole which must not be blocked by overfilling the reser- voir with coolant.

Be certain to replace the reservoir fill cap when the reservoir is full. Simply press on the inside center of the fill cap until the cap snaps into place. Operation of the Magnum Cooler without the fill cap in place can cause poor cooling efficiency, evaporation loss of coolant, and low product life.

WATER LINE CONNECTION

Two connector nuts and mating nipples are supplied in each Cooler 10-I and 20-I model. The connector and nipple fit tightly onto 4.0mm (5/32”) to 4.0mm (3/16”) inner diameter hose, but if clamped tightly to the hose can fit up to 6.4mm (.250”) inner diameter hose.

To install water lines onto the Cooler, check if your coolant hose mates with the 5/8-18 left hand female thread in the connector block at the back of the unit.

If the connector nut on your water hose does not mate with the connector block at the back of the Magnum Cooler:

Remove the connector nut from the INLET hose by making a straight cut 6-12mm (1/4-1/2”) away from the end of the nipple located inside of the hose. Take the nipple and the connector nut supplied with the

MAGNUM COOLER 10-I & 20-I

MAR97