LG ART COOL LAN090HSV5 Installation Manual page 41

F
MULTI
F
MULTI MAX
• Insulation material as required by local code.
• Rated for continuous exposure of temperatures up to 140°F
• Firmly attach the cable; provide slack but secure in a way to pre-
vent external forces from being imparted on the terminal block.
• Wiring must be completed without splices.
Multi F / Multi F with LGRED Systems:
• Communication / connection (power) cable from the outdoor unit to
the indoor unit must be a minimum of 14 AWG, four (4) conductor,
stranded, shielded or unshielded (if shielded, it must be grounded
to the chassis of the outdoor unit only), and must comply with ap-
plicable local and national codes.
• Use of 14 AWG, four (4) conductor, stranded, shielded or unshield-
ed wire is allowed for lengths up to the published maximum pipe
length, plus recommended slack at both ends.
Multi F MAX / Multi F MAX with LGRED Systems:
• All communication / connection (power) cable from the outdoor unit to the branch distribution unit(s) must be a minimum of 14 AWG, four
(4) conductor, stranded, shielded or unshielded (if shielded, it must be grounded to the chassis of the outdoor unit only), and must comply
with applicable local and national codes.
• Communication / connection (power) cable from the branch distribution unit(s) to the indoor units must be a minimum of 14 AWG, four (4)
conductor, stranded, shielded or unshielded (if shielded, it must be grounded to the chassis of the outdoor unit only), and must comply
with applicable local and national codes.
• Use of 14 AWG, four (4) conductor, stranded, shielded or unshielded wire is allowed for lengths up to the published maximum pipe length,
plus recommended slack at both ends.
• Use a conduit for the communications / connection (power) cable from the outdoor unit to the indoor units and branch distribution unit(s).
Electrical interference my cause product malfunction.
• Never ground the shield of the communications cable to the indoor unit frame or other grounded entities of the building. Ground the com-
munications cable shield only at the outdoor unit. Improperly grounding this cable can cause communications errors.
• The communications / connection (power) cable from the outdoor unit to the indoor units / branch distribution unit(s) must be separated and
isolated from power wiring to the outdoor unit, computers, radio and television broadcasting facilities, as well as medical imaging equipment.
Electrical interference my cause product malfunction.
Figure 58: Typical Multi F with LGRED System General Power / Com-
munications System Schematic.
Power Supply
Circuit Breaker
Ground Wiring
Outdoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 57: Typical Multi F / Multi F MAX with LGRED Outdoor and
Indoor / Branch Distribution Unit Wiring and Communications Cable
Diagram.
Power Wiring, Ground,
Communication Cable
From Outdoor Unit
To Indoor Unit or from the
Outdoor Unit to the Branch
Distribution Unit
GN/YL = (Ground, Yellow)
Figure 59: Typical Multi F MAX with LGRED System General Power /
Communications System Schematic.
Power Supply
Circuit Breaker
Ground Wiring
Outdoor Unit
WIRING
Indoor Unit
Branch Distribution Unit
Branch Distribution Unit
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