Installation manual

26 Magnitude™ Frictionless Centrifugal Chillers – Model WMC IM 1029-2
Case 4, WMC 250D, 290D, 400D Field Power Wiring
Case 4 adds both the EMI filters and the combo harmonic filters.
The EMI is factory mounted and the line side of the EMI is factory wired, the load side is field wired to the
remotely mounted harmonic filter.
The standard line reactors are shipped in the unit and are removed and discarded in the field. The field wiring
size to and from the harmonic filter should be the same as the incoming lines.
Figure 21 shows the optional multi-point connection to two disconnect switches. The standard would be a
single-point connection to a single disconnect switch. The balance of the wiring remains the same.
Figure 21, Case 4 Field Power Wiring
NOTES:
1. Optional EMI Filter
2. Remove standard line reactor when optional combination line reactor/harmonic filter assembly is used.
3. Circuit breakers shown in the diagram function exclusively as disconnect switches.