- 40 -
[
II
Restrictions ]
GB
HWE0804A
(4) Wiring method
1) Indoor/outdoor transmission line
Same as [5] 3.
Shielded cable connection
Same as [5] 1.
2) Transmission line for centralized control
Same as [5] 4.
Shielded cable connection
Same as [5] 4.
3) MA remote controller wiring
Same as [5] 1.
When 2 remote controllers are connected to the sys-
tem
Same as [5] 1.
Group operation of indoor units
Same as [5] 1.
4) M-NET remote controller wiring
Same as [5] 1.
When 2 remote controllers are connected to the sys-
tem
Same as [5] 1.
Group operation of indoor units
Same as [5] 1.
5) LOSSNAY connection
Same as [5] 4.
6) Switch setting
Address setting is required as follows.
(5) Address setting method
The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2.
Proce-
dures
Unit or controller
Address
setting
range
Setting method
Notes
Factory
setting
1
Opera-
tion
with the
MA re-
mote
control-
ler
In-
door
unit
Main unit
IC
01 to 50
Assign the smallest address
to the main unit in the group.
Assign an address smaller
than that of the indoor unit that
is connected to the M-NET re-
mote controller.
Enter the same indoor unit
group settings on the system
controller as the ones that
were entered on the MA re-
mote controller.
To perform a group operation
of indoor units that have differ-
ent functions, designate the
indoor unit in the group with
the greatest number of func-
tions as the main unit.
00
Sub unit
Assign sequential num-
bers starting with the ad-
dress of the main unit in
the same group +1. (Main
unit a1, main unit
a2, main unit ad-
dress +3, etc.)
MA
re-
mote
con-
troller
Main re-
mote con-
troller
MA
No
settings
required.
-
Main
Sub
remote
controller
MA
Sub
remote
controller
Settings to be made ac-
cording to the remote
controller function selec-
tion
2
Opera-
tion
with the
M-NET
remote
control-
ler
In-
door
unit
Main unit
IC
01 to 50
Assign the smallest ad-
dress to the main unit in
the group.
Enter the indoor unit group set-
tings on the system controller
(MELANS).
Assign an address larger than
those of the indoor units that
are connected to the MA re-
mote controller.
To perform a group operation
of indoor units that have differ-
ent functions, designate the
indoor unit in the group with
the greatest number of func-
tions as the main unit.
00
Sub unit
Assign sequential num-
bers starting with the ad-
dress of the main unit in
the same group +1. (Main
unit a1, main unit
a2, main unit ad-
dress +3, etc.)
M-
NET
re-
mote
con-
troller
Main re-
mote con-
troller
RC
101 to
150
Add 100 to the main unit
address in the group.
It is not necessary to set
the 100s digit.
To set the address to 200,
set the rotary switches to
00.
101
Sub
remote
controller
RC
151 to
200
Add 150 to the main unit
address in the group.
3
LOSSNAY
LC
01 to 50
Assign an arbitrary but
unique address to each of
these units after assign-
ing an address to all in-
door units.
None of these addresses
may overlap any of the in-
door unit addresses.
00
4
Outdoor unit
OC
OS1
OS2
51 to 100
Assign sequential ad-
dress to the outdoor units
in the same refrigerantcir-
cuit. The outdoor units
are automatically desig-
nated as OC, OS1, and
OS2.(Note)
To set the address to 100,
set the rotary switches to 50.
00
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