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ELECTRICAL WIRING
+Multi Outdoor Units
The main power is supplied to the outdoor unit. System must be on a single dedicated circuit. Use appropriate
wire size and circuit breaker (or fuse) size for proper system overcurrent protection. Follow all local building
codes and NEC (National Electrical Code) regulations.
The indoor units are powered by the outdoor unit. The interconnecting cable between the outdoor and indoor
units must be a 14/4 AWG stranded copper conductors THHN 600V unshielded wire. The interconnecting cable
should not be buried underground and must be recognized by UL or ETL and CSA certified.
Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
Interconnecting Cable Wiring Diagram
