Cooling Connections; Recommended Coolants - Danfoss EC-LTS1200-410 User Manual

User Guide
EC-LTS1200-410
Installation
22 | © Danfoss | July 2021
4. Connect the cooling system. See Chapter
drawing for connection details. Make sure that there are no air pockets in the cooling channels and that
the coolant goes freely in and out. Make sure that the cooling system operates correctly.
5. Make sure that the devices and machines you will connect to the electric device have no voltage.
6. Make the grounding of the frame of the electric device by direct contact between it and the metal
bracket and / or from the protective earth contacts. The grounding contacts must be paint-free. See
Chapter Grounding on page 23.

Cooling connections

Make sure that cooling liquid runs freely in and out from the electric device.
When selecting cooling liquid nipples, choose nipples that can resist galvanic corrosion.
To prevent damage to the cooling connectors, refer to the documentation of the
manufacturer for the correct tightening torque of the cooling liquid nipples.
•
Connect the electric device directly to the cooling circuit.
•
Make sure that the coolant flow is equal or higher than rated and the coolant temperature at the inlet
of the electric device is lower or equal to the rated temperature.
•
For more information, see Chapter
Rated values can be found on the rating plate of the electric device.
•
It is recommended to fix the hose on the coolant connection with a hose clamp or a hose clip after
the protection cap has been removed.
•
Use water/glycol mix or pure water with corrosion inhibitor as the coolant.

Recommended coolants

Ethylene glycol is a toxic compound. Avoid exposure to the coolant. Handle with care. Use
appropriate personal protective equipment when you handle the coolant.
The electric device works correctly with water based coolant. Plain water with appropriate corrosive
inhibitor is acceptable, for example water with maximum of 50% glycol coolant. Ethylene glycol based
® ®
Glysantin G48 (includes also corrosion inhibitors) or similar can be used. Propylene glycol based
®
coolants, like Splash RV&Marine antifreeze, can also be used. Propylene glycol is relatively safe
compound for humans and the environment.
Cooling connections on page 22 or the Main dimension
Recommended coolants on page 22 and product data sheets.
BC355449988603en-000201