LG MULTI V ARNU073TUD4 Installation Manual page 51

Connecting the Power Wiring / Communication Cable
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 begin-
ning of this manual.
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Don'ts
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Connection Procedure
Indoor unit installation best practices are to connect control wiring (low voltage) and then connect power wiring (high voltage).
apply power to the indoor unit or any Multi V system component until authorized to do so by the system commissioning agent.
1. Ensure the input power is disconnected and there is no power on the power input cable.
2. Remove the knock-out plugs from the control box. Remember the communications cable and the power cable must enter the control box
through different knockouts.
3. Field-install a plastic or rubber grommet in the knockout holes to prevent wire chaffing.
4. If using conduit, connect the conduit to the control box using field-provided fittings and industry best-practice procedures.
5. Separately route the power wiring and communications cables to the unit's terminal block (see figures on the following pages).
route the communications cable near the power cable. Two-way and four-way cassettes feature wiring and cable paths on opposites side
of the indoor unit. Provide at least three (3) to four (4) inches of slack cable at each indoor unit.
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
WIRING
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Do not
Do not
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