Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 37

[ II Restrictions ]
Pro
ce-
Unit or controller
du-
res
1 Indoor Main unit
unit
Sub unit
2 LOSSNAY
3 MA Main
remote remote
controller controller
Sub
remote
controller
4 Outdoor unit
5 Auxiliary BC
unit controller
(main)
BC
controller
(sub)
Wiring method/address setting method
Address
setting Setting method
range
IC 01 to 50 Assign the smallest address to
the main unit in the 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 formula
"(i) < (ii) < (iii)" is true.
Assign sequential numbers start-
ing with the address of the main
unit in the same group +1. (Main
unit address +1, main unit address
+2, main unit address +3, etc.)
LC 01 to 50 Assign an arbitrary but unique ad-
dress to each of these units after
assigning an address to all indoor
units.
MA No
settings
required.
MA Sub Settings to be made according to
remote the remote controller function se-
controller lection
OC 51 to 100 The sum of the smallest address
of the indoor units in the same sys-
tem and 50
BC 52 to 100 Outdoor unit address + 1
BS Assign an address that equals the
sum of the smallest address of the
indoor units that are connected to
the sub BC controller and 50.
- 28 -
Notes
Port number setting is
required by an R2 sys-
tem.
To perform a group op-
eration of indoor units
that have different func-
tions, set the indoor unit
in the group with the
greatest number of
functions as the main
unit.
None of these addresses
may overlap any of the in-
door unit addresses.
-
To set the address to
100, set it to 50.
If a given address over-
laps any of the ad-
dresses that are
assigned to the outdoor
units or to the sub BC
controller, use a differ-
ent, unused address
within the setting
range.
The use of a sub BC
controller requires the
connection of a main
BC controller.
Facto-
ry set-
ting
00
00
Main
00