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ENGLISH
Setting the MCU and Pipe Addresses (for HR Only)
You can set the MCU address, the MCU ports to use, and the address for each MCU port connected to each indoor unit.
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Setting the MCU address and the MCU ports to use
You can set the MCU address and the MCU ports on the MCU PBA.
1
ON
2 3 4
1
ON
2
A B C D
3 4
1
ON
2
E F
0 1
2
3
45
67
8
9
0 1
2
3
45
67
8
9
A
B
C
D
E
F
MCU address
switch
DIP switch
S/W option
DIP switch
1. Set the MCU address switch to a value. If two or more MCUs are installed, be sure to set a unique value for
each MCU. For the MCU address, you can set a value from 0 to 15.
2. For each MCU ports that are connected to an indoor unit through piping, set their DIP switch to ON. For
other MCU ports, set their DIP switches to OFF.
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3. If two MCU ports are connected to an indoor unit through a Y-joint, set the relevant S/W option DIP switch
to the settings given in the following table:
S/W option
UÃťϑӥϩʀ˵Ęͱ
ON
(Individual connection)
OFF
(Shared connection)
1
Each of ports A and B
Both ports A and B
2
Each of ports C and D
Both ports C and D
3
Each of ports E and F
Both ports E and F
࢜
You cannot make a shared connection for the two ports B and C, and D and E at the same time.
A
B
C
D
E
F
A
F
A
B
C
D
E
F
B
D
E
4. Set the address of each MCU port that is connected to an indoor unit by taking the procedures in Setting
the Pipe Addresses Manually or Setting the Pipe Addresses Automatically. (Auto pipe pairing operation)
࡛
If the following models are connected, set the pipe addresses manually by referring to Setting the
Pipe Addresses Manually.
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install manual.
CAUTION
