Putting The Cooling Unit Into Service; Filling With Coolant; Venting The Cooling Unit; Checking Coolant Circulation - Fronius VarioSynergic 3400 Instructions De Service

Putting the cooling unit into service

The cooling unit is delivered „dry", i.e. with no coolant. The coolant comes with the
Filling with
cooling unit, packaged separately. Before commissioning, fill the cooling unit with
coolant
coolant.
The cooling unit must be vented
Venting the
-
cooling unit
-
Procedure:
1.
2.
3.
4.
5.
6.
Important! Repeat the venting procedure until it is possible to see through the fill nozzle
on the cooling unit that coolant is flowing properly.
Checking coolant
circulation
1.
2.
Note! Use only Original Fronius coolant for filling the cooling unit. We do not
recommend other anti-freeze agents, due to their electrical conductivity and
insufficient compatibility.
after it is first filled
if no coolant is circulating, even though the coolant pump is running
Move mains switch to „I" position - the coolant pump begins to operate
Pull back locking ring on the water flow plug connector (blue) and unplug water flow
hose
Using a wooden or plastic pin, carefully press in and hold the sealing cone in the
centre of the water flow plug connector
Release the sealing cone once coolant begins to escape
Plug the water flow hose in place again
Check the outside water connections for leaks
Note! Before each time the cooling unit is commissioned, check the coolant
level and the purity of the coolant.
Move mains switch to „I" position - the coolant pump begins to operate
Check the coolant return flow until it is clear that the coolant is flowing through
properly. Vent the cooling unit if necessary.
Note! During welding, check at regular intervals that the coolant is flowing
through properly. You should be able to see through the fill nozzle that coolant is
flowing properly.
The coolant pump must only be operated
in conjunction with Fronius torch coolant.
Do not allow the coolant pump to run dry
(even for a very short time), as this will
destroy the coolant pump. In such cases,
claims for damage will be turned down.
Note! If the cooling unit is being
filled with coolant for the first
time, it must be vented after
filling.
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