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E-
49
Devices
Max.
Note
Indoor Unit
256
Tracking error occurs if exceeded
The maximum number of indoor units (including
ERV and MCU) that can be connected to each
communication channel is 128.
OnOff
controller/
Touch
Centralized
controller
75
Must not exceed 15 units per each RS485
communication terminal
Outdoor unit
80
Must not exceed 16 units per each RS485
communication terminal
SIM/PIM
8
Watt-hour
Meter
64
Maximum 8 units can be connected to 1 SIM/PIM.
X
The sum of OnOff controller, touch centralized controller, and SIM/PIM interface
module that can be connected to each communication channel should be 15 or less.
Maximum Devices Attachable
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