Multi F Engineering Manual

General Information
ELECTRICAL CONNECTIONS
Multi F Systems:
• Communication / connection (power) cable from the outdoor unit to the indoor unit for
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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.
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• A two (2) conductor wire for power (for each indoor unit).
• A two (2) conductor wire for communication / ground (for each indoor unit).
• Separate the power AT LEAST two (2) inches away from the communication /
ground wire (for each indoor unit).
• All wiring is still minimum 18 gauge, stranded, shielded, or unshielded as cited
above (for each indoor unit).
Multi F MAX Systems:
• All communication / connection (power) cable from the outdoor unit to the branch
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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
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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.
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• A two (2) conductor wire for power (for each indoor unit).
• A two (2) conductor wire for communication / ground (for each indoor unit).
• Separate the power AT LEAST two (2) inches away from the communication /
ground wire (for each indoor unit).
• All wiring is still minimum 18 gauge, stranded, shielded, or unshielded as cited
above (for each indoor unit).
• 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 prevent external forces from being imparted on the terminal block.
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Communication / Connection (Power) Cable Specifications
)LJXUHTypical Multi F / Multi F MAX with
LGRED Outdoor and Indoor / Branch Distribution
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Power Wiring, Ground,
Communication Cable
From Outdoor Unit
To Indoor Unit or from the
Outdoor Unit to the Branch
Distribution Unit
13/16”
GN/YL
GN/YL = (Ground, Yellow)
7/16" ± 1/8"
Two-Conductor
Power Cable
GN/YL
GN/YL = (Ground, Yellow)
Two-Conductor
Communication /
Ground Cable
Separate At Least
Two (2) Inches
13/16"
7/16" ± 1/8"
1(L1)
2(L2)
13/16"
7/16" ± 1/8"
3
)LJXUHMulti F with LGRED Outdoor Unit to
Indoor Unit, and Multi F MAX with LGRED Branch
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Electrical interference my cause product malfunction.
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communications cable shield only at the outdoor unit. Improperly grounding this cable can cause communications errors.
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isolated from power wiring to the outdoor unit, computers, radio and television broadcasting facilities, as well as medical imaging equip
ment. Electrical interference my cause product malfunction.
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WIRING CONNECTIONS | 207
Wiring Connections
MULTI
F
MAX
MULTI
F