Fronius CU 1100i, Operating Instructions Manual

Page: 56 / 84

Symbols for care
and maintenance
of the cooling
unit
(1) (2) (3)
(4) (5)
(1) Change the coolant
(2) Gas purge the cooler
(3) Clean the coolant return filter on
the outside of the unit and the
coolant pre-filter inside the unit and
replace the filter element if neces-
sary
(4) Only use original coolant from the
manufacturer (Cooling Liquid FCL
10/20 oder ethanolbasiertes
Kühlmittel)
(5) Read this document
The relevant maintenance intervals and
work are described in detail in the follow-
ing pages.
Maintenance in-
tervals, mainten-
ance work
CAUTION!
Danger due to starting up without coolant.
This can result in severe damage to property.
▶
Only operate the cooling unit after it has been filled with coolant.
▶
If water-cooled system components are put into operation without coolant, this usu-
ally results in a defect of the system components.
The manufacturer is not liable for any resulting damage, and all warranty claims are
voided
CAUTION!
Danger from non-permitted coolant.
This can result in severe damage to property.
▶
Use only original coolant from the manufacturer (Cooling Liquid FCL 10/20 or ethan-
ol-based coolant) when filling the cooling unit.
▶
Other coolants are not recommended for electrical conductivity and material compat-
ibility reasons.
At every start-up
- Ensure that all hosepacks and welding torches are undamaged
- Check that there is an all-round clearance of 0.5 m (1 ft. 7.69 in.) to ensure that cool-
ing air can flow in and out freely
- Check the screw connections between all system components of the welding system
for tightness
- Check all the coolant connections of the welding system for tightness
- Monitor the coolant return flow in the coolant tank
-
If no coolant is returning to the container, identify and remedy the cause
Once a week
- Check coolant level. If the coolant level is below the "min" mark, top up with coolant.
Attention when using OPT/i CU Torch deflate - see section
OPT/i CU Torch de-
flate: Emptying/filling the torch hosepack from page 41 .
- Check the purity of the coolant. Change the coolant if necessary
56