52
B. Example of a group operation system with two or more outdoor units and a M-NET remote controller.
(Shielding wires and address settings are necessary.)
Examples of
T
ransmission Cable Wiring
Wiring Method
Address Settings
a. Always use shielded wire when making connections between the outdoor unit (OC) and the indoor unit (IC), as well
for all OC-OC, and IC-IC wiring intervals.
b. Use feed wiring to connect terminals M1 and M2 and the ground terminal on the transmission cable terminal block
(TB3) of each outdoor unit (OC) to terminals M1 and M2 on the terminal S on the transmission cable block of the
indoor unit (IC).
c. Connect terminals M1 and M2 on the transmission cable terminal block of the indoor unit (IC) that has the most
recent address within the same group to the terminal block (TB6) on the remote controller (NR).
d. Connect together terminals M1, M2 and terminal S on the terminal block for central control (TB7) for the outdoor
unit (OC).
e. Use the grounded wire to connect the S-terminal on the transmission terminal of the outdoor unit (OC) and the
grounded terminal for the electrical components box.
f. On one outdoor unit only, change the jumper connector on the control panel from CN41 to CN40.
g. Connect the terminal S on the terminal block for central control (TB7) for the outdoor unit (OC) for the unit into which
the jumper connector was inserted into CN40 in Step above to the ground terminal
;
in the electrical component
box.
h. Set the address setting switch as follows.
i. The group setting operations among the multiple indoor units is done by the remote controller (NR) after the electrical
power has been turned on.
Unit
IC (Main)
IC (Sub)
Outdoor Unit
Main Remote Controller
Sub Remote Controller
Range
001 to 050
001 to 050
051 to 100
101 to 150
151 to 200
Setting Method
Use the most recent address within the same group of indoor units.
Use an address, other than that of the IC (Main) from among the units within
the same group of indoor units. This must be in sequence with the IC (Main).
Use the most recent address of all the indoor units plus 50.
Set at an IC (Main) address within the same group plus 100.
Set at an IC (Main) address within the same group plus 150.
M1 M2 S
M1 M2 S
TB7
TB3
IC
(051)
M1 M2 S
TB5
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
1 2
TB15
NR
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5
(005)
IC
M1 M2 S
TB5
(007)
IC
M1 M2 S
TB5
(006)
L
1
L
8
R
1
R
4
L
9
L
2
L
3
L
4
L
5
L
6
L
7
TB6
(101)
NR
TB6
(105)
NR
TB6
(103)
NR
TB6
(155)
CN40
OC
Between
terminal blocks
M1 M2 S
M1 M2 S
TB7
TB3
(052)
OC
R
2
R
3
Shielded wire
( ) Address
Group 3
Group 5
Group 1
Sub remote
controller
OC183E--2.qxp 10.5.6 0:47 PM Page 52
