Mitsubishi Electric City Multi PQHY-P72 Service Handbook page 57

[ II Restrictions ]
Pro
ce-
Unit or controller
du-
res
1 Indoor Main unit
unit
Sub unit
2 LOSSNAY
3 M-NET Main
remote remote
controller controller
Sub
remote
controller
4 Outdoor (heat
source) unit
5 Auxiliary BC
unit controller
(main)
BC
controller
(sub)
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 or WR2 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 ad-
dress +2, main unit address +3,
etc.)
LC 01 to 50 Assign an arbitrary but unique
address to each of these units af-
ter assigning an address to all in-
door units.
RC 101 to Add 100 to the main unit address
150 in the group
RC 151 to Add 150 to the main unit address
200 in the group
OC 51 to 100 The sum of the smallest address
of the indoor units in the same
system and 50
BC 52 to 100 Outdoor (heat source) unit ad-
dress + 1
BS Assign an address that equals
the sum of the smallest address
of the indoor units that are con-
nected to the sub BC controller
and 50.
- 48 -
Facto-
Notes ry set-
ting
Enter the indoor unit 00
group settings on the
system controller
(MELANS).
Port number setting is
required by an R2 or
WR2 system.
None of these addresses 00
may overlap any of the
indoor unit addresses.
It is not necessary to 101
set the 100s digit.
To set the address to
200, set it to 00.
To set the address to 00
100, set it to 50.
To set the address to 00
100, set it to 50.
If address that is as-
signed to the main BC
controller overlaps any
of the addresses that
are assigned to the
outdoor (heat source)
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.