13. Start the coolant pump. Let any air remaining in the system out through the bleed valve
at the cooling unit.
14. After one to two minutes, stop the pump or block the coolant flow with a valve.
15. Re-check the pressure and add coolant if necessary.
16. Repeat steps 13 to 15 a few times until all air is let out of the cooling circuit. Listen for
a humming sound and/or feel the piping for vibration to find out if there is still air left in
the circuit.
Internal cooling circuit 85
Summary of Contents for ACS880-1607LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 1607LC DC DC converter units Hardware manual ...
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Page 102: ...Unit with 1 R8i converter module 102 Dimension drawings ...
Page 103: ...Dimension drawings 103 ...
Page 104: ...Location and size of energy storage connection terminals 104 Dimension drawings ...