Wall Mounted Installation Manual

42
Multi F Standard Wall-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
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MAX
MULTI
F
MULTI
F
WIRING
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• Multi F with LGRED Systems:
• Communication / connection (power) cable from the outdoor unit to the indoor unit for
lengths up to 130 feet must use a minimum of 18 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.
• When the communication / connection (power) wires between the indoor unit and
outdoor unit is GREATER THAN 130 feet, use:
• 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 with LGRED Systems:
• All communication / connection (power) cable from the outdoor unit to the branch
distribution unit(s) must be a minimum of 16 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 for lengths up to 130 feet must use a minimum of 18 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.
• When the communication / connection (power) wires between the branch distribution
unit and indoor unit is GREATER THAN 130 feet, use:
• 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.
• Wiring must be completed without splices.
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Figure 61: Typical Multi F / Multi F MAX with
LGRED Outdoor and Indoor / Branch Distribution
Unit Wiring and Communications Cable Diagram
For Wiring Lengths Up to 130 Feet.
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
Figure 62: Multi F with LGRED Outdoor Unit to
Indoor Unit, and Multi F MAX with LGRED Branch
Distribution Unit to Indoor Unit Wiring Diagram for
Wiring Lengths GREATER THAN 130 Feet.
• 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.