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 83
Summary of Contents for ACS880-307LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 307LC diode supply units Hardware manual ...
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Page 41: ...10 9 7 6 8 Electrical installation 41 11 ...
Page 73: ...11 12 12 6 10 Maintenance 73 ...
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Page 96: ... 400 mm wide input cubicle 96 Technical data ...
Page 97: ... 600 mm wide incoming cubicle or input cubicle Technical data 97 ...