User's Manual

System Maintenance
55 Liebert
®
MC
™
Figure 30 EBM small and medium fan, Liebert MC series MCS/MCM
Figure 31 EBM large fan—Liebert MC series MCL
Connect uninsulated drain wires from
communication cables to ground
connection (GND) as shown below.
The drain wires must be tied together
with cable ties and routed away from
the high-voltage terminals.
NOTE
If replacing a Ziehl-Abegg fan with an
EBM fan, the existing ferrule must be
removed from the end of the wires on
the communication cable for all fans
except the last fan. Twist wires
together before inserting into the
terminal block.
Example:
Twist RSA-labeled conductor of the
input cable to RSA-labeled conductor
of the output cable.
Insert the wires into the properly
marked terminal on the fan, two
wires per RSA, RSB and GND
terminal as shown in Detail A.
Connect uninsulated drain wires from
communication cables to ground
connection (GND) as shown below.
The drain wires must be tied together
with cable ties and routed away from
the high-voltage terminals.
NOTE
If replacing a Ziehl-Abegg fan with
an EBM fan, the existing ferrule
must be removed from the end of
the wires on the communication
cable for all fans except the last
fan. Twist wires together before
inserting into the terminal block.
Example:
Twist RSA-labeled conductor of
the input cable to RSA-labeled
conductor of the output cable.
Insert the wires into the properly
marked terminal on the fan, two
wires per RSA, RSB and GND
terminal as shown in Detail B.