Installation, Coolant "in" and "out" connections, Figure 1 – Lincoln Electric COOL ARC IM911 User Manual

Page 10

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A-3

INSTALLATION

COOL ARC® 40

A-3

LYING DOWN (HORIZONTAL):

Carefully add 2 gallons (7.6 liters) of coolant through a
funnel into the coolant reservoir fill hole. AVOID
SPILLING COOLANT INTO THE LOUVERS ON THE
TOP OF THE COOLER.

The cooler is "FULL" when the coolant lies just below
the coolant reservoir opening with the cooler in the
upright (vertical) position.

NOTE: DO NOT ADD MORE THAN 2 GALLONS
(7.6 LITERS) OF COOLANT INTO THE RESER-
VOIR.
The fill cap contains a pressure release air
hole, which must not be blocked by overfilling the
reservoir 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 COOL ARC® 40 without the fill cap in place can
cause poor cooling efficiency, evaporation, loss of
coolant and reduced product life.

COOLANT "IN" AND "OUT" CONNECTIONS

The fittings located on the back center of the COOL
ARC® 40 are two female 5/8-18 left-hand threaded fit-
tings. (CGA Style) These mate with water hoses typi-
cally used in the welding industry. Refer to Figure 1.

Water or Coolant Line Connections to the COOL ARC®
40

Take the connector nut of the water hose and check if
the thread of the male connector nut matches the 5/8-
18 left hand female thread in the fitting on the back of
the unit.

For all Lincoln products and those with a connector
nut on the water hose that mate with the fittings on the
back of the COOL ARC® 40:

(Reference FIG. 1) Take the accessory "INLET" hose
(colored or tagged blue on most hoses) and thread it
into the coolant "OUT" fitting located on the right side
of the back of the cooler. Secure the connector nut of
the hose tightly into the fitting with a wrench so that
leaking does not occur. Then take the accessory
"OUTLET" hose (colored or tagged red on most
hoses) and thread it into the coolant "IN" fitting located
on the left side of the back of the cooler. Again, tightly
secure the connector nut of the hose into the fitting of
the cooler with a wrench to insure that no leaking
occurs.

NOTE: BE CERTAIN THAT NO LEAKS EXIST
WHEN THE COOLER IS TURNED ON. A LEAK
WILL DEPLETE RESERVOIR VOLUME, CAUSING
POOR COOLING PERFORMANCE AND REDUCING
GUN OR TORCH LIFE.

If the connector nut on a water hose does not mate
with the fittings on the back of the COOL ARC® 40,
order the following:
(See Parts Lists for Itemʼs below)

(2) Connector Nuts
(2) Nipples for 3/16" I.D. hose
(2) Hose Clamps

FIGURE 1

Inlet and Outlet Hose Connection Diagram

COOLANT

IN

COOLANT

OUT

FROM

HEAT

SOURCE

(RED)

TO

HEAT

SOURCE

(BLUE)

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