Mitsubishi Electric Mr.Slim PAR-30MAA Technical Manual page 77

6.Connecting the transmission wire
The remote controller wiring differs according to whether it is connected to a multi air conditioner or Mr. Slim air conditioner.
The method also varies according to the system configuration. Always check before starting.
(1) Connecting to a multi air conditioner
(a) to (d) in the following figure correspond to (a) to (d) in the explanations.
Address = 51
Outdoor unit
Address = 55
Outdoor unit
Central controller
Power feed unit
for transmission wire
(a) Wiring the remote controller and indoor unit
• Connect to the terminal block (TB15) for the indoor unit's MA remote controller wire.
• Connect to the remote controller's terminal block (symbol A, B). The terminal block has no polarity.
(b) When operating groups (Group 03 and 0 above)
• Use a crossover wire between the terminal block (TB15) for the MA remote controller wires of the indoor units to be oper-
ated in a group, and connect the remote controller to the crossover.
• When using with the MELANS system controller as shown above, the group must be set on the system controller (central
controller shown above).
(c) Overall distance of remote controller cable, and number of connectable remote controllers
The restrictions differ according to the connected indoor unit. Refer to the catalog or system design and work manual, etc.
The overall distance when connecting one remote controller is 200m.
(d) When running a LOSSNAY in conjunction, refer to the Installation Manual (Setting Section) and set the remote controller.
(2) Connecting to Mr. Slim air conditioner
The remote controller wiring will vary according to the system configuration. Refer to the following example, and connect.
(a) to (c) in the following figure correspond to (a) to (c) in the explanations.
When connecting a remote controller for each refrigerant system(Standard 1:1, Twin,Triple,Quadruple)
Twin
Outdoor
Ref address = 00
unit
Indoor unit
Main remote controller
Group 01 Group 02
Address = 01 Address = 02
Indoor unit Indoor unit
Remote Remote
controller controller
Main Main
Address = 08 Address = 07
Indoor unit Indoor unit
Remote Remote
controller controller
Main Sub
Group 04
Twin
Outdoor
unit
Indoor unit
Indoor unit
Main remote
controller
Group 03
Address = 03 Address = 04 Address = 09
Indoor unit Indoor unit
Remote
Remote
controller
controller
Main
Sub
Address = 06 Address = 05
Indoor unit Indoor unit
Ref address = 00
Indoor unit
Connect the MA remote
controller to the indoor unit
Sub remote
TB15
controller
LOSSNAY
Connect the MA remote
controller to the indoor unit
TB15
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