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32 31-5000573 Rev. 2
ENGLISH
INSTALLATION INSTRUCTIONS
Electric Wiring and Applications Cont.
Internal Layout of Electric Box
Outdoor Dip Switch Configuration:
• Main Unit: Main Unit is identified by setting dip switch BM1-7, 8 to zero.
• Function main unit: The outdoor unit, whose priority is set as 0, operates with the highest priority.
• Physical sub unit: By setting the dip switch, the unit number is not 0.
• Functional sub unit: The outdoor without the highest priority of running, the priority class is 1-3.
• Group class setting: Physical main unit setting is valid, which can be used for all units. For example, silence, snow-proof,
piping length, etc. setting. Set all kinds of state on the physical main unit as a representative.
• Single class setting: Only be used for the single unit, instead of the whole group. For example, sensor backup running,
inverter board selection etc.
• In the following table, 1 is ON, 0 is OFF.
Power
Terminal Communication
Terminal PCB Main Control
Board
Compressor
Drive Module
Capacitor
Plate
Reactor Transformer (only for units
applied voltage with 460V)
Filter Board
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