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6. Electrical work
Example for the group operation
I Example of wiring transmission cables
Group
A
OC
M-IC(Main)
(51)
(01)
TB3
TB7
TB5 TB15
1 2
M1 M2 S
M1 M2 S
M1 M2 S
A B
(101)
M-NET RC
Multiple CITY MULTI series indoor units operated together by 1 M-NET remote controller.
Note:
Combinations of standard operation, operation using 2 M-NET remote controllers, and group operation are possible.
I Wiring Method and Address Settings
1. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (M-IC).
2. Use feed wiring to connect terminals M1 and M2 and the ground terminal on transmission cable terminal block (TB3) for the outdoor unit (OC) to terminals M1 and M2
on the transmission cable terminal block (TB5) of each CITY MULTI series indoor unit (M-IC). Use nonpolarized 2-core wire.
3. Connect terminals M1 and M2 on transmission cable terminal block (TB5) of the M-IC main unit with the most recent address within the same CITY MULTI series indoor
unit (M-IC) group to terminal block on the M-NET remote controller.
4. Set the address setting switch (on P.C.B) as shown below.
Unit
M-IC (Main)
M-IC (Sub)
OC
M-NET RC
5. Use the CITY MULTI series indoor unit (M-IC) within the group with the most functions as the M-IC (Main) unit.
I Permissible Lengths
Same as that of standard operation
I Constraint items
OC
M-IC(Main)
(51)
(01)
TB3
TB7
TB5 TB15
M1 M2 S
M1 M2 S
M1 M2 S
1 2
*1
A B
(102)
M-NET RC
*1.
The M-NET remote controller address is the CITY MULTI series indoor unit main address plus 100. In this case, it should be 101.
M-IC(Sub)
( ) : Address
(02)
TB5 TB15
1 2
M1 M2 S
Range
001 to 050
Use the smallest address within the same group of CITY MULTI series indoor units.
001 to 050
Use an address, other than that of the M-IC (Main) from among the units within the
same group of indoor units. This must be in sequence with the M-IC (Main).
051 to 100
Use the smallest address of all the CITY MULTI series indoor units plus 50.
* The address automatically becomes "100" if it is set as "01–50".
101 to 150
Set at an M-IC (Main) address within the same group plus 100.
M-IC(Sub)
( ) : Address
(02)
TB5 TB15
M1 M2 S
1 2
Setting Method
en
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