Fujitsu AOU48RLXFZ - Page 202

6. SYSTEM DESIGN
Example 3 (Not good)
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Branch box (primary)
Central remote
controller line
Central remote
controller
Central remote
controller line
Do not connect Central remote controller to outdoor unit or indoor unit.
Always connect branch box to Central remote controller.
Example 4 (Not good)

Central remote
controller line
Branch box (primary)
Branch box (primary)
Branch box 2 (secondary)
Central remote
controller
Do not connect one Central remote controllers to two refrigerant system.
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SYSTEM DESIGN SYSTEM DESIGN