Multi Variable Air Conditioners Fresh Air Series Indoor Unit
18
（
3
）
Connect the power cord to terminal "L, N,
".
（
4
）
Fix the power card with wiring clamp.
5.3 Connection of Communication Line of IDU and ODU
（
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
shownin 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.
Fig 5.3.1 Fig 5.3.2
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:
Содержание VEOA042N432U
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