An Example Of A System To Which An M-Net Remote Controller Is Connected - Mitsubishi Electric PURY-P72 Service Handbook

[II Restrictions)
[6] An Example of a System to which an M·NET Remote Controller is connected
(1) Sample control wiring
_ Interlock operation with the ventilation unit
112
"1 When only the lM adaPter is connected, leave SW2-11o OFF (as ills).
-2 LM adapters require the power supply capacity of single-phase AC 220· 240V.
07
LC
03 02 01
BC
53
III
(2) Cautions
1) M-NET remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
2) No more than 3 M-NET remote controllers can be connected
to
a
group of indoor units,
3) Do not connect the terminal blocks (TB5) on the indoor units
that are connected to different outdoor units with each other.
4) Replace the power jumper connector of the control board
from CN41 to CN40 on only one of the outdoor units.
5) Provide an electrical path to ground for the
S
terminal on the
terminal block for centralized control on only one of the out-
door units,
6) When the number of the connected indoor units is as shown
in the table below, one or more transmission boosters (sold
separately) are required.
To connect two transmission boosters, connect them in par-
allel. (Observe the maximum number of connectable indoor
units that are listed in the specifications for each outdoor
unit.)
Number of transmission booster
(sold separately) required
1 unit
2 units 3 units
When the P72 and P96 models
15 - 34 35 - 50
are not included in the connected
indoor units
units units
When the P72 and P96 models
11 -26
27 -42 43 - 50
are included in the connected in-
door units
units units units
-The left table shows the number of transmission boosters
that is required by the system with three BC controllers. For
each BC controller that is subtracted from the above-men-
tioned system, two additional indoor units can be connected,
7) When a power supply unit is connected to the transmission
line for centralized control, leave the power jumper connec-
tor on CN41 as it ;s (factory selting),
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as [5) 3.
2) Transmission line for centralized control
Same as f5]
4.
3) M-NET remote controller Wiring
Maximum overall line length
(0.3 to 1.25mm
2
fAWG22 to 16])
m1S10m [32ft)
m2+m3:S; 1Om f32ft)
If the standard-supplied cable must be extended, use a
cable with a diameter of 1.25mm
2
[AWG16), The section
of the cable that exceeds 10m [32ft) must be ind uded in
the maximum indoor-outdoor transmission fine distance
described in (1).
When connected to the terminal block on the Simple re-
mote controller, use cables that meet the following cable
size specifications: 0.75 - 1.25 mm 2 [AWG18-16].
HWE0803A
- 38-
GB