Multi F Engineering Manual

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physical injury, or death.
• Multi F systems operate at 1Ø, 208-230V, 60Hz, and power is wired to the outdoor unit
only. The outdoor unit will supply power to the indoor units and the branch distribution
units (Multi F MAX systems only) through the communication / connection (power) cable.
• Power supply to the outdoor unit must be selected based on NEC and local codes. Maxi-
mum allowable voltage fluctuation ±10% or nameplate rated value.
• Power wiring to the outdoor unit(s) must be solid or stranded, and must comply with all
local and national electrical codes.
• Properly ground the outdoor unit and indoor unit per NEC and local codes.
• Ground wire must be longer than the common power / communication wires.
• Connect the wiring firmly so the wires cannot be easily pulled out.
• Refer to the inside of the chassis cover or control cover for circuit and terminal block diagrams.
• Always match color codes of each wire and follow wiring diagram.
•
Do not install power wiring to the outdoor unit and the communication / connection (power) cable to the indoor unit in the same conduit.
Use separate conduits.
Power Supply / Power Wiring Specifications
)LJXUH Multi F / Multi F MAX Outdoor Unit
3RZHU:LULQJ
7/16" ± 1/8"
13/16
"
GN/YL
Power Wiring, Ground
to Outdoor Unit
General Information
ELECTRICAL CONNECTIONS
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• Do not operate the air conditioning system until the refrigerant piping installation is complete. Operating the system before refrigerant
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206 | WIRING CONNECTIONS
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F