33
OCH675E
C. Example of an MA remote controller system (address setting is not necessary.)
NOTE: In the case of same group operation, need to set the address that is only main indoor unit.
Example of wiring control cables
Wiring Method and Address Setting
1. Standard operation
TB5
TB15
(00)
M-IC
TB3
TB7
(00)
OC
L
1
L
2
TB5
TB15
(00)
M-IC
MA-RC
MA-RC
r
1
r
2
M1 M2 S
M1 M2 S
1 2
M1 M2 S
1 2
M1 M2 S
A B
A B
•
1 Remote controller for each indoor unit
a. Use feed wiring to connect terminals M1 and M2 on trans
-
mission cable block (TB3) for the outdoor unit (OC) to ter
-
minals M1 and M2 on the transmission cable block (TB5)
of each indoor unit (M-IC). Use non-polarized 2-core wire.
b. Connect terminals 1 and 2 on transmission cable terminal
block (TB15) for each indoor unit with the terminal block for
the MA remote controller (MA).
2. Operation using 2 remote controllers
MA-RC
TB5 TB15
(00)
M-IC
TB3
TB7
(00)
OC
TB5 TB15
(00)
M-IC
MA-RC
MA-RC
r
3
r
4
r
5
M1 M2 S M1 M2 S
1 2
M1 M2 S
1 2
M1 M2 S
A B
A B
A B
• Using 2 remote controllers for each indoor unit
a. The same as above 1.a
b. The same as above 1.b
c. I n the case of using 2 remote controllers, connect terminals
1 and 2 on transmission cable terminal block (TB15) for
each indoor unit with the terminal block for 2 remote con
-
trollers.
· Set either one of the MA remote controllers to "sub remote
controller"
Refer to the installation manual of MA remote controller.
3. Group operation
MA-RC
TB5 TB15
(00)
M-IC
TB3
TB7
(00)
OC
TB5 TB15
(00)
M-IC
r
6
r
7
M1 M2 S M1 M2 S
M1 M2 S M1 M2 S
A B
1 2
M1 M2 S
•
Multiple indoor units operated together by 1 remote controller
a. The same as above 1.a
b. The same as above 1.b
c. Connect terminals 1 and 2 on transmission cable terminal
block (TB15) of each indoor unit, which is doing group
operation with the terminal block for the MA remote control
-
ler. Use non-polarized 2-core wire.
d. In the case of same group operation, need to set the
address that is only main indoor unit. Please set the small-
est address within number 01–50 of the indoor unit with
the most functions in the same group.
Combinations of 1 through 3 above are possible.