Mitsubishi Electric R410A Service Handbook page 52

[2-9 Example System with an MA and an ME Remote Controller ]
(4) Wiring method
1) Indoor/outdoor transmission line
Same as 2-7-1
Shielded cable connection
Same as 2-7-1
2) Transmission line for centralized control
Same as 2-7-4
Shielded cable connection
Same as 2-7-4
3) MA remote controller wiring
Same as 2-7-1
When 2 remote controllers are connected to the sys-
tem
(5) Address setting method
Proce-
Unit or controller
dures
1 Opera- In-
tion door
with the unit
MA re-
mote
control-
ler
MA
re-
mote
con-
troller
2 Opera- In-
tion door
with the unit
ME re-
mote
control-
ler
ME re-
mote
con-
troller
3 LOSSNAY
4 Outdoor unit
The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2.
The outdoor units are designated as OC, OS1, and OS2 in the order of capacity from large to small (if two or more units have
the same capacity, in the order of address from small to large).
HWE14080
Address
setting
range
Main unit IC 01 to 50
Sub unit
Main re- MA No
mote con- settings
troller required.
Sub MA Sub
remote remote
controller controller
Main unit IC 01 to 50
Sub unit
Main re- RC 101 to
mote con- 150
troller
Sub RC 151 to
remote 200
controller
LC 01 to 50
OC 51 to 100
OS1
OS2
- 43 - 43
Same as 2-7-1
Group operation of indoor units
Same as 2-7-1
4) M-NET remote controller wiring
Same as 2-7-1
When 2 remote controllers are connected to the sys-
tem
Same as 2-7-1
Group operation of indoor units
Same as 2-7-1
5) LOSSNAY connection
Same as 2-7-4
6) Switch setting
Address setting is required as follows.
Setting method
Assign the smallest address Assign an address smaller
to the main unit in the group. than that of the indoor unit
that is connected to the ME
remote controller.
Assign sequential num-
Enter the same indoor unit
bers starting with the ad-
group settings on the system
dress of the main unit in
controller as the ones that
the same group +1. (Main
were entered on the MA re-
unit address +1, main unit
mote controller.
address +2, main unit ad-
To perform a group operation
dress +3, etc.)
of indoor units that have dif-
ferent functions, designate
the indoor unit in the group
with the greatest number of
functions as the main unit.
-
Settings to be made ac-
cording to the remote con-
troller function selection
Assign the smallest ad- Enter the indoor unit group
settings on the system con-
dress to the main unit in
troller (MELANS).
the group.
Assign an address larger than
those of the indoor units that
Assign sequential num-
are connected to the MA re-
mote controller.
bers starting with the ad-
To perform a group operation
dress of the main unit in
of indoor units that have dif-
the same group +1. (Main
ferent functions, designate
unit address +1, main unit
the indoor unit in the group
address +2, main unit ad-
with the greatest number of
dress +3, etc.)
functions as the main unit.
Add 100 to the main unit It is not necessary to set
address in the group. the 100s digit.
To set the address to 200,
set the rotary switches to
Add 150 to the main unit 00.
address in the group.
Assign an arbitrary but None of these addresses
unique address to each of may overlap any of the in-
these units after assigning door unit addresses.
an address to all indoor
units.
Assign sequential address To set the address to 100,
to the outdoor units in the set the rotary switches to 50.
same refrigerantcircuit.
The outdoor units are au-
tomatically designated as
OC, OS1, and OS2. (Note)
Factory
Notes
setting
00
Main
00
101
00
00
GB