System Control - Mitsubishi PUMY-71VM Technical & Service Manual

7-3. SYSTEM CONTROL

7-3-1. Operating a Single Refrigerant System
When operating either alone or as part of a group, a M-NET remote controller (NR) may be used to control a single
refrigerant system that does not overlap with any other system.
<Example of system arrangement>
Using a M-NET remote controller (NR)
Address setting must be performed.
The NR wire and indoor and outdoor transmission wires must be a non-polar two wire cable.
One NR may be connected to a maximum of 16 indoor unit.
Two NR units may be used to perform control tasks (the second one pressed will have priority if two are pressed
simultaneously).
Outdoor
unit
For indoor-outdoor
transmission wire
Indoor unit Indoor unit
NR
Indoor unit Indoor unit
Remote controller
NR
network
Group operation (maximum
16 indoor units)
48
indoor-outdoor trnasmission cable
Indoor unit
NR NR NR
2 remote controller
If the user plans to install multiple refrigerant
systems and a centralized controller in the
future, it is strongly suggested that a NR be
used.
Remote
control wire