Fronius FK 4000, Руководство по эксплуатации, Страница: 43 / 52

Troubleshooting
Safety
WARNING!
Danger due to work that has been carried out incorrectly.
This can result in serious injury and damage to property.
▶
All the work described below must only be carried out by trained and qualified per-
sonnel.
▶
Fully read and understand this document.
▶
Fully read and understand all the Operating Instructions for the system components,
especially the safety rules.
WARNING!
Danger from electric current.
An electric shock can be fatal.
▶
Turn the power source mains switch to the "O" position.
▶
Disconnect the power source from the mains.
▶
Ensure that the power source remains disconnected from the mains until all work
has been completed.
▶
After opening the device, use a suitable measuring instrument to check that electric-
ally charged components (e.g. capacitors) have been discharged.
WARNING!
Danger from inadequate ground conductor connections.
This can result in serious injury and damage to property.
▶
The housing screws provide a suitable ground conductor connection for earthing the
housing and must NOT be replaced by any other screws that do not provide a reli-
able ground conductor connection.
CAUTION!
Danger from hot coolant.
This can result in severe scalds.
▶
Wait until the coolant has cooled down before carrying out any of the activities
described below.
CAUTION!
Risk from coolant leakage.
This can result in serious damage to property.
▶
Make sure that no coolant gets into the device.
▶
If there is any coolant on the exterior of the cooling unit, remove it immediately.
General If the cooling unit is fitted with one of the following options, the relevant error message
appears on the power source control panel:
-
Flow watchdog with coolant filter ... no | H2O (coolant flow error)
- Thermostat ... hot | H2O (coolant temperature too high)
43
EN