M-Net Address Settings; Address Settings List; Outdoor Unit Power Jumper Connector Connection - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[2-4 M-NET Address Settings ]

2-4

M-NET Address Settings

2-4-1

Address Settings List

1. M-NET Address settings
(1) Address settings table
The need for address settings and the range of address setting depend on the configuration of the system. Refer to section
[2-7 Example System with an MA Remote Controller]
Unit or controller Symbols
Indoor Main/sub IC
unit unit
MA remote MA
controller
Outdoor unit OC
*1. If a given address overlaps any of the addresses that are assigned to indoor or outdoor units in other refrigerant systems,
use a different, unused address within the setting range.
2-4-2

Outdoor Unit Power Jumper Connector Connection

System Connection to the
configuration system controller
System in which Not connected
indoor units
With connection
connected to one
to indoor-outdoor
outdoor unit
transmission line
With connection
to transmission
line for central-
ized control
System in which Not connected
indoor units
connected to two
outdoor units
With connection
to indoor-outdoor
transmission line
With connection
to transmission
line for central-
ized control
4
- chapter 2
Address setting
range
*1
01 to 50
In case of 10HP system, assign an odd number starting with
"01". In case of 20HP system with two refrigerant circuits, as-
sign a sequential odd number starting with "01" to the upper
indoor controller, and assign "the address of the upper indoor
controller + 1" to the lower indoor controller.
No address settings required. (The main/sub switch must be configured if two
remote controllers are connected to the system or if the indoor units are con-
nected to different outdoor units.)
*1
51 to 100 Assign an address of the indoor units in the same refriger-
ant system and 50.
Power supply Grouping the in-
unit for transmis- door units con-
sion lines nected to different
outdoor units
-
Not required
Not required
(Powered from
the outdoor unit)
Required
- Not grouped
Grouped
Not required Grouped
/Not grouped
Not required Grouped
(Powered from /Not grouped
the outdoor unit)
Required Grouped
/Not grouped
Setting method
Power supply switch connector connection
- Leave the connector on CN41 as it is.
(Factory setting)
Disconnect the connector from CN41 and
connect it to CN40 on only one of the
outdoor units (OC).
·Connect the S (shielded) terminal on the
terminal block (TB7) on the outdoor unit
whose connector on CN40 to the earth
terminal ( ) on the control box.
Leave the connector on CN41 as it is.
(Factory setting)
Disconnect the connector from CN41 and
connect it to CN40 on only one of the
outdoor units (OC).
·Connect the S (shielded) terminal on the
terminal block (TB7) on the outdoor unit
whose connector on CN40 to the earth
terminal ( ) on the control box.
Leave the connector on CN41 as it is.
(Factory setting)
Ad-
dress
setting
00
Main
00
BS_02_C