Mitsubishi Electric CITY MULTI PUMY-P112VKM5 Technical & Service Manual page 37

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 CITY MULTI series indoor unit.
Example of wiring control cables
1. Standard operation
L
1
OC
(00)
TB3 TB7
M1 M2 S M1 M2 S
M1 M2 S
• 1 MA remote controller for each indoor unit
2. Operation using 2 remote controllers
OC
(00)
TB3 TB7
M1 M2 S M1 M2 S
• Using 2 MA remote controllers for each CITY MULTI series
indoor unit
3. Group operation
OC
(00)
TB3 TB7
M1 M2 S M1 M2 S
• Multiple indoor units operated together by 1 MA remote con-
troller
Combinations of 1 through 3 above are possible.
OCH740
L
2
M-IC M-IC
(00) (00)
TB5 TB15
TB5 TB15
1 2 1 2
M1 M2 S
A B A B
MA-RC MA-RC
M-IC M-IC
(00) (00)
TB5 TB15
TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
A B A B A B
MA-RC MA-RC MA-RC
(Main) (Sub)
M-IC M-IC
(00) (00)
TB5
TB5 TB15
1 2
M1 M2 S M1 M2 S
A B
MA-RC
r7
Wiring Method and Address Setting
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 CITY MULTI series indoor unit (M-IC). Use non-
polarized 2-core wire.
b. Connect terminals 1 and 2 on transmission cable terminal
block (TB15) for each CITY MULTI series indoor unit with
the terminal block for the MA remote controller (MA-RC).
a. The same as above 1.a
b. The same as above 1.b
c. In 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 MA remote
controllers.
· Set either one of the MA remote controllers to ˝sub
remote controller˝.
Refer to the installation manual of MA remote controller.
a. The same as above 1.a
b. The same as above 1.b
c. In the case of group operation using MA remote controller
(MA-RC), connect terminals 1 and 2 on transmission cable
terminal block (TB15) of each CITY MULTI series indoor
unit. Use non-polarized 2-core wire.
d. In the case of same group operation, need to set the
TB15
address that is only main CITY MULTI series indoor unit.
1 2
Please set the smallest address within number 01–50 of the
CITY MULTI series indoor unit with the most functions in the
same group.
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