2-Way Cassette Tl Chassis - LG ARNU073TUC4 Instruction Manual

WIRING

2-Way Cassette TL Chassis

DANGER
High voltage electricity is required to operate this system. Adhere to the National Electrical
Codes and these instructions when wiring. Always ground the unit following local, state, and
National Electrical Codes. Read the safety summary at the beginning of this manual.
Cable Connections
1. Ensure the input power is disconnected and there is no power on
the power input cable.
2. Refer to Figure 24 and route the power and outdoor unit com-
munications cables to the unit's terminal block. Do not route the
communications cable near the power cable.
3. Connect the power cable to the 1(L1) and 2(L2)
terminal block connections. Ensure the
screws securely connect the wire to the
terminals and are not loose.
4. Connect the field-provided outdoor unit
communications cable to the 3(A) and 4(B)
terminal block connections. This cable must
be 18-2, stranded, shielded, and meet all
applicable codes. Polarity matters on this
IDU to ODU communications bus. Be sure
to connect A terminals to A terminals and B
terminals to B terminals. Ensure this com-
munication cable is properly grounded at
the master outdoor unit only. Do not ground
this IDU to ODU communications cable at
any other point.
5. If the unit has a wall-mounted zone controller, connect the con-
troller's cable to the unit's remote control connection. On some
units this cable connects to a pigtail cable from the CN-REMO
connector on the control board and on some units it connects
directly to the CN-REMO connector.
40
1(L1) 2(L2)
Power Supply
High Voltage
(208/230V)
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 24: Typical TL Chassis Cable Connections
3(A) 4(B)
Communications
Lock nut
Conduit