Fronius FK 4000 - Coolant Management and Gas Purging

39
EN
NOTE!
The maintenance work is described over the following pages.
Gas purge the
cooler
NOTE!
For the sake of clarity, the cooling unit is shown in the following figures without the
power source.
However, the power source can remain on the cooling unit when gas purging the cooler.
Always follow the instructions in the "Safety" section at the start of the "Care, maintenance
and disposal" chapter.
NOTE!
Risk of damage to electronic components.
Do not bring air nozzle too close to electronic components.
- Remove the unit side panels and clean
the cooler (1)
Every 2 months - If present: Check the coolant filter for dirt and clean if nec-
essary
Every 6 months - Gas purge the cooler
Every 6 months
for 3-shift opera-
tion with ethanol-
based coolant
- Gas purge the cooler
- Change the coolant
Every 12 months
for single-shift op-
eration with etha-
nol-based coolant
- Change the ethanol-based coolant
Every 12 months
in 3-shift opera-
tion with FCL 10/
20 coolant
- Change the coolant
Every 24 months
in single-shift op-
eration with FCL
10/20 coolant
- Change the coolant
Gas purging the cooler:
(1)