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5 OPERATION
5.3
Cooling liquid connection
When connecting a liquid-cooled welding torch, the main power supply switch of the power
source must be in the OFF position and the cooling unit switch must be in position 0.
Some wire feed unit variants with cooling liquid connections included are equipped with a
detection system called ESAB Logic Pump (ELP), which checks that the water hoses are
connected. When connecting a water-cooled welding torch, the water pump starts
automatically. The detection only works with power sources that are equipped with ELP (for
instance Aristo 4004i together with Cool 1). For power sources without ELP function (for
instance Aristo 500ix together with Cool 2), the cooler unit must be turned on and off
manually.
CAUTION!
Non-ELP feeder variants should not be used together with power sources equipped
with ELP! If non-ELP feeders are used together with power sources equipped with
ELP, the liquid cooled torch may be damaged due to lack of coolant flow!
A liquid cooling kit can be ordered as an accessory (see the "ACCESSORIES" appendix).
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