Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 28

2. Address settings
(1) Address settings table
The need for address settings and the range of address setting depend on the configuration of the system.
Unit or controller
Indoor Main/sub unit
unit
LOSSNAY , OA processing
unit
M-NET Main remote
remote controller
controller
Sub remote
controller
MA remote controller
Outdoor unit
Auxiliary BC controller
outdoor (main)
unit
BC controller
(sub)
System System remote
controller controller
ON/OFF remote
controller
Schedule timer
(compatible with
M-NET)
Central controller
G-50
LM adapter
*1 No address settings are required for units in a system with one outdoor unit (with some exceptions). Address setting
is required if a sub BC controller is connected.
*2 To set the M-NET remote controller address to "200", set it to "00".
*3 To set the outdoor unit or auxiliary outdoor unit address to "100", set it to "50".
*4 If a given address overlaps any of the addresses that are assigned to other outdoor units, use a different, unused
address within the setting range (with some exceptions).
*5 Some indoor units have 2 or 3 controller boards that require address settings.
(1) The address to be assigned to the No.1 controller board (by the power supply terminal block) must be 1 smaller
than that to the No.2 controller board.
(2) No. 2 controller board address must be equal to the sum of the No. 1 controller board address and 1, and the
No.3 controller board address must equal to the No. 1 controller address and 2.
Address setting
range
*1
0, 01 to 50 Assign the smallest address to the main indoor unit in the
group, and assign sequential address numbers to the rest of
the indoor units in the same group.
In an R2 system with a sub BC controller, make the settings
for the indoor units in the following order.
(i) Indoor unit to be connected to the main BC controller
(ii) Indoor unit to be connected to sub BC controller 1
(iii) Indoor unit to be connected to sub BC controller 2
Make the settings for the indoor units in the way that the for-
mula "(i) < (ii) < (iii)" is true.
Assign an arbitrary but unique address to each of these
units after assigning an address to all indoor units.
101 to 150 Add 100 to the smallest address of all the indoor units in
the same group.
*2
151 to 200 Add 150 to the smallest address of all the indoor units in
the same group.
No address settings required. (The main/sub setting must be made if 2 re-
mote controllers are connected to the system.)
0, 51 to Assign an address that equals the sum of the smallest ad-
*1,*3,*4
100 dress of the indoor units in the same refrigerant system
and 50.
*3*4
0, 52 to 100 Assign an address that equals the sum of the address of
the outdoor unit in the same refrigerant system and 1.
Assign an address that equals the sum of the smallest ad-
dress of the indoor units that are connected to the sub BC
controller and 50.
If a sub BC controller is connected, auto-startup function
will not be available.
201 to 250 Assign an arbitrary but unique address within the range
listed on the left to each unit.
Assign an address that equals the sum of the smallest
group number of the group to be controlled and 200.
Assign an arbitrary but unique address within the range
listed on the left to each unit.
0, 201 to 250 Assign an arbitrary but unique address within the range
listed on the left to each unit. The address must be set to
"0" to control the K-control unit.
201 to 250 Assign an arbitrary but unique address within the range
listed on the left to each unit.
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Setting method
*5
[ II Restrictions ]
Ad-
dress
setting
00
00
101
Main
00
201
202
000
247