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Multi Variable Air Conditioners Compact Cassette Type Indoor Unit
(1) Detach the electric box lid.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect wires according to Fig.5.2.1.
(4) Fix the power cord with wiring clamp.
(5) The wire diameter of power cord can't be less than 18AWG
5.3 Connection of Communication Wire between Indoor Unit and Outdoor
Unit (or Indoor Unit)
(1) Detach the electric box lid.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board, as
shown in Fig.5.3.1.
(4) Fix the communication cable with clamp of electric box.
(5) For more reliable communication, make sure connect the terminal resistor to the most
downstream IDU of the communication bus (terminal D1 and D2), as shown in Fig. 5.3.2,
terminal resistor is provided with each ODU.
5.4 Connect Communication Wire of Wired Controller
(1) Open electric box cover of indoor unit.
(2) Let the communication wire go through the rubber ring.
(3) Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4) Fix the communication wire with wire clip on the electric box.
(5) Wiring instructions of remote receiving light board and wired controller:
1) Wired controller is shown as Fig.5.4.1, wireless controller is shown as Fig.5.4.2, signal
Fig.5.3.1
Fig.5.3.2
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