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 113
Summary of Contents for ACS880-207LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 207LC IGBT supply units Hardware manual ...
Page 2: ......
Page 4: ......
Page 10: ...10 ...
Page 52: ...52 ...
Page 62: ...62 ...
Page 74: ...4 74 Maintenance ...
Page 79: ...4 5 6 Maintenance 79 ...
Page 96: ...Internal cooling circuit data See chapter Internal cooling circuit 96 Technical data ...
Page 98: ...98 Technical data ...
Page 99: ... 600 mm wide incoming cubicle or input cubicle Technical data 99 ...
Page 100: ... 1000 mm wide input cubicle 100 Technical data ...
Page 108: ...108 ...
Page 118: ...118 ...