EKFCMBCB7
Modbus interface PCB kit
4PW65443-1B – 2021.06
Installation manual
3
CONTENT OF KIT EKFCMBCB7
See figure 1
1 Modbus interface PCB
2 Wires
A: Power supply wire for FWF models
B: Power supply wire for FWC models
C: Communication wire
3 Tie wraps
4 Spacers
5 Installation manual
NAME OF PARTS
See figure 2
1 Connector to the fan coil unit PCB for power supply with wire A or B
2 Connector to the fan coil unit terminal block for communication (F1/F2) with wire B
3 Communication wires from the field
4 SS1: Put on OFF position
5 SS2: Switch to decide position of Modbus PCB in communication line
(refer to "External connection possibility" on page 5)
SPECIFICATION OF COMMUNICATION WIRES
Specifications field wiring
Wire type Twisted pair sheathed cable
Wire size 0.75~1.25 mm
2
Maximum total wire length 500 m
4PWEN65443-1B.book Page 3 Tuesday, June 29, 2021 11:58 AM
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