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92
DC Inverter Multi
VRF Service Manual
Mainboard of 4-bit functional dial-up
7.4.2 Address code
Address dial-up must be set for the multi indoor units; otherwise the abnormal communication will be
caused to the unit. The address code has 4-bit dial-up in total. The highest address is 16 and the lowest
address is 1.
NOTES!
To use multiple indoor units in parallel, make sure to change the setting of address code before
installation and guarantee that the address code of each indoor unit must be different (The address
code is located on the mainboard of indoor unit). If wired controller is used, make sure to dial the
address code of wired controller to the position same as the address code on corresponding indoor
unit. (The address code of wired controller is located on the back of wired controller)
Below is factory default setting:
The default setting of address dial-up code is 0000 and the address is 1 (See above for the position of dial
lever).
Dial-up Value
The dial-up value of address code is set in binary system. The dial-up value is “0” when the lever is dialed
to “ON” end; the dial-up is “1” when the lever is dialed to numerical end on opposite side. For number 4~1 on
the address code, the dial-up #4 refers to high bit and the dial-up 1# refers to low bit.
Dial-up Table (4-bit Dial-up Switch)
4-bit
3-bit
2-bit
1-bit
Address
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
Содержание GMV-PD100W/NAB-K
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