Cooling System Maintenance; Cleaning - Danfoss EC-LTS1200-410 User Manual

User Guide
EC-LTS1200-410
Maintenance

Cooling system maintenance

Cleaning

36 | © Danfoss | July 2021
Maintenance intervals
Object
General Operation
construction
Mounting
Enclosure and
connected parts
Electrical system Cables
Electrical
connections
Groundings
(earthings)
Cooling system Operation
Ventilation plug
The cooling system of the electric device requires regular observation and maintenance
activities. Observe weekly that the cooling system operates correctly and check monthly that there are no
leakages in the cooling system. The quality of the coolant must be checked yearly. The mixture of water
and glycol as well as the type of the glycol used must be as specified. See Chapter
on page 22.
Do not use pressure washer for cleaning. High water pressure may damage the gaskets
allowing water to go in to the electric device.
Never open or remove the watertight ventilation plugs. Clean them only from the outside.
Risk of electric shock if the electric device is cleaned against instructions allowing water to go
in to the electric device.
Keep the electric device clean. For cleaning, use non-abrasive and non-corrosive cleaning products. Make
sure that the detergent can be used for aluminum.
Check/Task
Abnormal phenomenon, for example noise or
heating. If clearly increased, contact Danfoss
representative.
Tightness of the screws. Tighten to proper
value if necessary. Applies to screws that are
presented in this user guide. See Chapter
Tightening torques on page 15.
Check cleanliness. Clean if necessary. See
Chapter Cleaning on page 36.
Visual check, for example wear. Replace if
necessary.
Check connections. Ensure that sufficient
tightening torque is applied to cable glands.
See Chapter Tightening torques on page 15.
Check groundings (earthings). Ensure that the
connection resistance is valid. Re-connect if
necessary.
Functioning. Cooling system functions as
specified.
Cleanliness. Clean if necessary. See Chapter
Cleaning on page 36.
Weekly Monthly Yearly
X
X
X
X
X
X
X
X
Recommended coolants
BC355449988603en-000201