Fronius MTG 270i Operating Instructions Manual page 31

CAUTION!
Risk of damage from operation without coolant.
Serious damage to property may result.
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Never use water-cooled welding torches without coolant.
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The manufacturer is not responsible for any damage resulting from improper use. All
warranty claims are considered void in such cases.
CAUTION!
Danger from coolant escaping.
This can result in severe personal injury and damage to property.
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When disconnecting a welding torch from the cooling unit or wirefeeder, always seal
the coolant hoses using the plastic seal attached to the torch.
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