Mitsubishi Electronics PUHY-P144 Manual De Usuario

- 40 -

[

II Restrictions ]

HWE08040

(4) Wiring method

1) Indoor/outdoor transmission line

Same as [5] 3.
Shielded cable connection
Same as [5] 1.

2) Transmission line for centralized control

Same as [5] 4.
Shielded cable connection
Same as [5] 4.

3) MA remote controller wiring

Same as [5] 1.
When 2 remote controllers are connected to the sys-
tem

Same as [5] 1.
Group operation of indoor units
Same as [5] 1.

4) M-NET remote controller wiring

Same as [5] 1.
When 2 remote controllers are connected to the sys-
tem
Same as [5] 1.
Group operation of indoor units
Same as [5] 1.

5) LOSSNAY connection

Same as [5] 4.

6) Switch setting

Address setting is required as follows.

(5) Address setting method

The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2.

Proce-

dures

Unit or controller

Address

setting

range

Setting method

Notes

Factory

setting

Opera-
tion
with the
MA re-
mote
control-
ler

In-
door
unit

Main unit

01 to 50

Assign the smallest address
to the main unit in the group.

Assign an address smaller

than that of the indoor unit that
is connected to the M-NET re-
mote controller.

Enter the same indoor unit

group settings on the system
controller as the ones that
were entered on the MA re-
mote controller.

To perform a group operation

of indoor units that have differ-
ent functions, designate the
indoor unit in the group with
the greatest number of func-
tions as the main unit.

Sub unit

Assign sequential num-
bers starting with the ad-
dress of the main unit in
the same group +1. (Main
unit address +1, main unit
address +2, main unit ad-
dress +3, etc.)

MA
re-
mote
con-
troller

Main re-
mote con-
troller

No
settings
required.

Main

Sub
remote
controller

Settings to be made ac-
cording to the remote
controller function selec-
tion

Opera-
tion
with the
M-NET
remote
control-
ler

In-
door
unit

Main unit

01 to 50

Assign the smallest ad-
dress to the main unit in
the group.

Enter the indoor unit group set-

tings on the system controller
(MELANS).

Assign an address larger than

those of the indoor units that
are connected to the MA re-
mote controller.

To perform a group operation

of indoor units that have differ-
ent functions, designate the
indoor unit in the group with
the greatest number of func-
tions as the main unit.

Sub unit

Assign sequential num-
bers starting with the ad-
dress of the main unit in
the same group +1. (Main
unit address +1, main unit
address +2, main unit ad-
dress +3, etc.)

M-
NET
re-
mote
con-
troller

Main re-
mote con-
troller

101 to
150

Add 100 to the main unit
address in the group.

It is not necessary to set

the 100s digit.

To set the address to 200,

set the rotary switches to
00.

101

Sub
remote
controller

151 to
200

Add 150 to the main unit
address in the group.

LOSSNAY

01 to 50

Assign an arbitrary but
unique address to each of
these units after assign-
ing an address to all in-
door units.

None of these addresses
may overlap any of the in-
door unit addresses.

Outdoor unit

OC
OS1
OS2

51 to 100

Assign sequential ad-
dress to the outdoor units
in the same refrigerantcir-
cuit. The outdoor units
are automatically desig-
nated as OC, OS1, and
OS2.(Note)

To set the address to 100,
set the rotary switches to 50.