48
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).
For indoor-outdoor
transmission wire
Remote
control wire
indoor-outdoor trnasmission cable
2 remote controller
Group operation (maximum
16 indoor units)
Outdoor
unit
Indoor unit
Indoor unit
Indoor unit
NR
NR
Remote controller
network
Indoor unit
Indoor unit
NR
NR
NR
✽
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.
OC183E--2.qxp 10.5.6 0:47 PM Page 48