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Mitsubishi Electric PURY-HP72 Service Handbook page 58

R410a
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[2-8 Example System with an ME Remote Controller ]
(4) Wiring method
1) Indoor/outdoor transmission line
Same as 2-7-2
Shielded cable connection
Same as 2-7-2
2) Transmission line for centralized control
Same as 2-7-4
Shielded cable connection
Same as 2-7-4
3) ME remote controller wiring
ME remote controller is connectable anywhere on the in-
door-outdoor transmission line.
(5) Address setting method
Proce-
Unit or controller
dures
1
Indoor
Main unit
unit
Sub unit
2
LOSSNAY
3
ME
Main
remote con-
remote
troller
controller
Sub
remote con-
troller
4
Outdoor unit
5
Auxiliary
BCcon-
troller (Sub)
outdoor
unit
BC control-
ler (Main)
The outdoor units in the same refrigerant circuit are automatically designated as OC and OS.
They are designated as OC and OS in the descending order of capacity (ascending order of address if the capacities are the
same).
HWE13080
Ad-
dress
Setting method
setting
range
IC
01 to
Assign the smallest address to the main unit
in the group.
50
In a system with a sub BC controller, make
the settings for the indoor units in the fol-
lowing 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 starting 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
Assign an arbitrary but unique address to
each of these units after assigning an address
50
to all indoor units.
RC
101 to
Add 100 to the main unit address in
150
the group
RC
151 to
Add 150 to the main unit address in
200
the group
OC
51 to 100
Assign sequential address to the outdoor
units in the same refrigerant circuit.
OS
The outdoor units are automatically desig-
nated as OC and OS.(Note)
BS
51 to 100
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.
BC
OC (or OS if it exists) +1
- 47 -
47
When 2 remote controllers are connected to the sys-
tem
Refer to the section on Switch Setting.
Performing a group operation (including the group
operation of units in different refrigerant circuits).
Refer to the section on Switch Setting.
4) LOSSNAY connection
Same as 2-7-4
5) Switch setting
Address setting is required as follows.
Port number setting is
required
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 indoor unit
addresses.
It is not necessary to set the
100s digit.
To set the address to 200,
set the rotary switches to 00.
To set the address to 100,
set the rotary switches to 50.
If the addresses that is as-
signed to the main BC con-
troller overlaps any of the
addresses that are assigned
to the outdoor units or to the
sub BC controller, use a dif-
ferent, unused address with-
in the setting range.
The use of a sub BC control-
ler requires the connection
of a main BC controller.
Fac-
tory
Notes
set-
ting
00
00
101
00
GB

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