26
OCH634C
7-4. SYSTEM CONTROL
7-4-1. Example for the System
• Example for wiring control cables, wiring method and address setting, permissible lengths, and the prohibited items are listed
in the standard system with detailed explanation.
A. Example of a M-NET remote controller system (address setting is necessary.)
Example of wiring control cables
Wiring Method and Address Setting
• 1 remote controller for each indoor unit
• There is no need for setting the 100 position on the remote controller.
1. Standard operation
2. Operation using 2 remote controllers
• Using 2 remote controllers
for each indoor unit
a. Use feed wiring to connect terminals M1 and M2 on
transmission cable block (TB3) for the outdoor unit
(OC) to terminals M1 and M2 on the transmission
cable block (TB5) of each indoor unit (IC). Use non-
polarized 2-core wire.
b. Connect terminals M1 and M2 on transmission cable
terminal block (TB5) for each indoor unit with the
terminal block (TB6) for the remote controller (RC).
c. Set the address setting switch (on outdoor unit P.C.B)
as shown below.
3. Group operation
• Multiple indoor units operated together by 1 remote controller
Unit
Indoor unit (IC)
Outdoor unit
(OC)
Remote
controller (RC)
Range
001 to 050
051 to 100
101 to 150
Setting Method
—
Use the smallest
address of all the indoor
unit plus 50.
Indoor unit address plus
100
a. Same as above a
b. Same as above b
c. Set address switch (on outdoor unit P.C.B) as
shown below.
Unit
Indoor unit (IC)
Outdoor unit
(OC)
Range
001 to 050
051 to 100
101 to 150
151 to 200
Setting Method
—
Use the smallest
address of all the indoor
units plus 50.
Indoor unit address plus
100
Indoor unit address plus
150
a. Same as above a
b. Connect terminals M1 and M2 on transmission cable
terminal block (TB5) of the IC main unit with the most
recent address within the same indoor unit (IC) group
to terminal block (TB6) on the remote controller.
c. Set the address setting switch (on outdoor unit P.C.B)
as shown below.
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 smallest 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 smallest 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.
d. Use the indoor unit (IC) within the group with the
most functions as the IC (Main) unit.
Combinations of 1 through 3 above are possible.
Main Remote
Controller (RC)
Sub Remote
Controller (RC)
TB5
TB15
(01)
(101)
IC(Main)
TB3
TB7
(51)
OC
TB5
TB15
(02)
IC(Sub)
M-NET RC
1 2
A B
M1 M2 S
M1 M2 S
M1 M2 S
1 2
M1 M2 S
TB5
TB15
(01)
(101)
(Main)
(151)
IC
TB3
TB7
(51)
OC
TB5
TB15
(02)
IC
(Sub)
(102)
(Main)
(152)
(Sub)
1 2
M1 M2 S
M1 M2 S
M1 M2 S
1 2
M1 M2 S
A B
A B
A B
A B
M-NET RC
M-NET RC
M-NET RC
M-NET RC
TB5
1 2
TB15
(01)
(101)
IC
A B
M1 M2
TB3
S
TB7
(51)
OC
L
1
L
3
L
2
TB5
TB15
(02)
IC
M-NET RC
(102)
M-NET RC
l
1
l
2
M1 M2 S
M1 M2 S
1 2
M1 M2 S
A B
