Multi Variable Heat Pump Floor and Ceiling Type Indoor Unit
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5.3.1.
(4) Secure the communication cable with clamp of electric box.
(5) For more reliable communication, connect the terminal resistor to the most downstream IDU of the
communication bus (terminal D1 and D2), as shown in Fig. 5.3.2, a terminal resistor is provided with
each ODU.
5.4 Connection of Communication Wire for Wired Controller
(1) Open the electric box of the IDU.
(2) Lead the communication wire through the wiring holes.
(3) Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4) Secure the communication wire with clamp on the electric box.
(5) Wiring instructions of signal receiver and wired controller.
Fig.5.4.1
(6) Both IDU and wired controller are equipped with signal receiver, and available for remote control
respectively.(Fig 5.4.2)
