Section II. INSTALLATION
2.1 MOUNTING AND CONNECTIONS
a. If the Water Circulating Unit is used in a moving vehicle,
use the four hold-down clamps supplied as shown in Figure 2.
b. Attach the coolant inlet hose of the welding device to
the connection on the water block marked WATER IN.
c. Attach the coolant outlet hose of the welding device to
the connection on the water block, marked WATER OUT.
d. The motor comes equipped with wire and plug for 115-
volt ac operation. For 230-volt operation, change the wire and
plug and refer to Figure 3 to convert the motor.
e. Plug the circulator motor line cord into a suitable power
outlet and attach the ground wire to a suitable ground connection.
The motor must run continuously. Never con-
nect the Water Circulating Unit so its motor
starts and stops with each operation of a weld-
ing contactor. The cooling efficiency of the
unit will be hampered and the starting wind-
ing in the motor may burn out.
The life of the Water Circulating Unit pump increases if a lubri-
cant is added to the water in the tank. A quart of Socony-
Vacuum, Solval No. 1535, stock no. 23900404 is supplied with
each Unit. A quart should be added to every 10 gallons of water.
Where freezing conditions may be encountered, permanent type
anti-freeze must be added. The proper quantity of anti-freeze to
be added will depend on the lowest expected temperature in the
area and quantity of water. Anti-freeze may be used as a sub-
stitute for the lubricant.
Figure 3. Motor Jumper Location
S e c t i o n Ill. O P E R A T I O N
HELlWELD and AIRCOMATIC equipment may be operated at their full rated current for at least three hours continu-
ously. This duty cycle is based on a 40F (22.3C) coolant temperature rise above an 80 F (26.7C) ambient when used
with arc-welding devices.
Coolant temperature should never exceed 120oF (49C).