LG Multi V Installation Manual page 25

Zone Controller Cable Installation
High voltages capable of causing death or severe injury are used in this equipment. Do not touch live circuits.
Ensure input power is not applied when performing this procedure. Use a meter to verify power is not connected.
Do not work on this equipment alone. Know how to obtain emergency assistance.
Note:
• Communications cables between wall mounted zone controllers and the indoor unit must be provided by LG
• Do not cut, shorten, or splice zone controller communications cables
• Do not use wire nuts/caps.
• Do not use field provided wire between zone controller and indoor units
Zone Controller Cable Connection Instructions
1. Verify power is not connected to the unit
2. Refer to Figure 22. Each zone controller is supplied with 30 feet of communications cable with a male or female plug-end. Route the
cable between the zone controller location and the indoor unit. If the distance between the zone controller and indoor unit exceeds
30 feet, purchase an LG zone controller communications extension cable (32 feet, Model No. PZCWRCG3). This extension cable has
a female connector on one end and a male connector on the other.
Note:
The minimum distance required between power wires and the zone controller cables is voltage/amperage dependent. Refer to the
LG Multi V™ Outdoor Unit Engineering Manual for detailed information.
3. Keep zone controller cables away from line voltage wiring, lighting ballasts, and other devices emitting EMF energy. Maintain a minimum
of 2 inches between line voltage wires and communications or zone controller cables.
4. If necessary, remove the front cover (convertible) or side cover (ceiling suspended) of the indoor unit to access the control box.
5. Choose and remove a knock-out plug from the control box. Do not use the same knock-out as the input power cable. Field-provide a
plastic or rubber grommet in the knock out opening to prevent wire chaffing.
Note:
Connect the MALE connector of the communications cable at the indoor unit.
6. If using conduit, make sure
the conduit diameter is suf-
ficient to accommodate the
connectors of the LG zone
controller communications
cable. Connect the conduit
to the control box using field
provided fittings and industry
best practice procedures.
7. Pull the communications
cable through the conduit
and/or knockout opening.
Provide 3–4 inches of slack
cable at the indoor unit.
8. If conduit is not needed,
secure the zone controller
communications cable in ap-
propriate locations between
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Check whether the connector
is connected correctly.
Connecting cable
Figure 22: Zone Controller Cable Installation
Indoor
unit side
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