CAUTION!
Danger from insufficient coolant when starting the cooling unit for the first time.
This can result in severe damage to property.
▶
If the cooling unit is fitted with an OPT/i CU level sensor, the OPT/i CU level sensor
may cause an error message to be output if long hosepacks are being used when
starting for the first time.
▶
If this happens, top up the coolant.
The cooling unit is powered and controlled by the power source. If the power source
mains switch is turned to position - I - the cooling unit will start to operate as described
below:
-
The fans run for approx. 5 seconds
-
The coolant pump runs for approx. 3 minutes. The coolant pump switches off again
if welding does not start after around 3 minutes
The operating status of the cooling unit can be manually changed by selecting different
operating modes. For more information, see
OPT/i CU Torch
deflate: Empty-
ing/filling the
torch hosepack
Mode of operation of the OPT/i CU Torch deflate:
When using OPT/i CU Torch deflate option, the "Empty/fill torch hosepack" setup para-
meter is available in the power source setup menu under the component settings for the
auto and eco operating modes.
This function can be used to return the coolant in the torch hosepack to the coolant tank,
for example when changing the torch body.
The power source does not have to be turned off during this process.
WARNING!
When emptying hosepacks that are longer than 8 m (26 ft. 2.96 in.), a fully filled
coolant tank can overflow.
This can result in serious injury and damage to property.
▶
Ensure that overflowing coolant is collected properly and does not get onto the out-
side of the unit or into the interior of the unit.
If the coolant temperature is less than 50 °C (122 °F), the emptying process is started
from the power source setup menu or the welding torch and takes a maximum of 60
seconds.
After the torch body has been successfully changed, the torch hosepack can be filled
with coolant.
Procedure for filling welding torch hosepacks
that are longer than 8 m (26 ft. 2.96 in.):
1
Connect the hosepack to the power source
2
Fill cooling unit to the maximum level - see section
de-
scribed on page
3
Fill hosepack with coolant - see Operating Instructions for the power source
4
Do not top up the coolant tank, otherwise the tank could overflow when the torch
hosepack is emptied.
Further information about emptying/filling the torch hosepack can be found in the Operat-
ing Instructions for the power source.
41
EN
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