34
OCH668G
7-5. SYSTEM CONTROL
7-5-1. Example for the System
• Example for wiring control cables, wiring method and address setting, permissible lengths, and the constraint items are listed
in the standard system with detailed explanation.
A. Example of an M-NET remote controller system (address setting is necessary.)
Example of wiring control cables
Wiring Method and Address Setting
1. Standard operation
TB5
1 2
TB15
(01)
(101)
M-IC
A B
M1 M2
TB3
S
TB7
(51)
OC
L
1
L
2
TB5 TB15
(02)
M-IC
M-NET RC
(102)
M-NET RC
r
2
M1 M2 S
M1 M2 S
1 2
M1 M2 S
A B
r
1
• 1 M-NET remote controller for each CITY MULTI series
indoor unit.
• There is no need for setting the 100 position on the M-NET
remote controller.
a.
Use feed wiring to connect terminals M1 and M2 on trans
-
mission cable block (TB3) for the outdoor unit (OC) to ter
-
minals M1 and M2 on the transmission cable block (TB5)
of each indoor unit (M-IC). Use non-polarized 2-core wire.
b. Connect terminals M1 and M2 on transmission cable termi-
nal block (TB5) for each indoor unit with the terminal block
(TB5) for the M-NET remote controller (M-NET RC).
c.
Set the address setting switch (on outdoor unit P.C.B) as
shown below.
Unit
Range
Setting Method
CITY MULTI series
indoor unit (M-IC) 001 to 050
—
Outdoor unit(OC) 051 to 100
Use the smallest address of all the
indoor unit plus 50.
M-NET remote controller
(M-NET RC)
101 to 150 Indoor unit address plus 100
2. Operation using 2 M-NET remote controllers
TB5
TB15
(01)
(101)
(Main)
(151)
M-IC
TB3
TB7
(51)
OC
TB5
TB15
(02)
M-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
• Using 2 M-NET remote controllers for each CITY MULTI series
indoor unit.
a. Same as above 1.a
b. Same as above 1.b
c.
Set address switch (on outdoor unit P.C.B) as shown
below.
Unit
Range
Setting Method
CITY MULTI series
indoor unit (M-IC) 001 to 050
—
Outdoor unit (OC) 051 to 100
Use the smallest address of all
the indoor units plus 50.
Main M-NET
remote controller
(M-NET RC)
101 to 150 Indoor unit address plus 100
Sub M-NET
remote controller
(M-NET RC)
151 to 200 Indoor unit address plus 150
3. Group operation
TB5 TB15
(01)
(101)
M-IC(Main)
TB3
TB7
(51)
OC
TB5 TB15
(02)
M-IC(Sub)
M-NET RC
1 2
A B
M1 M2 S
M1 M2 S
M1 M2 S
1 2
M1 M2 S
Group
A
• Multiple indoor units operated together by 1 remote control-
ler
a. Same as above 1.a
b. Connect terminals M1 and M2 on transmission cable termi-
nal block (TB5) of the M-IC main unit with the most recent
address within the same indoor unit (M-IC) group to terminal
block (TB5) on the remote controller.
c. Set the address setting switch (on outdoor unit P.C.B) as
shown below.
Unit
Range
Setting Method
M-IC (Main)
001 to 050
Use the smallest address within the same
group of M-NET control indoor units.
M-IC (Sub)
001 to 050
Use an address, other than that of the M-IC
(Main) from among the units within the
same group of indoor units. This must be in
sequence with the M-IC (Main).
Outdoor unit
051 to 100
Use the smallest address of all the M-NET
control indoor units plus 50.
Main M-NET
Remote Controller
(M-NET RC)
101 to 150
Set at an M-IC (Main) address within
the
same group plus 100.
d.
Use the CITY MULTI series indoor unit (M-IC) within the
group with the most functions as the M-IC (Main) unit.
Combinations of 1 through 3 above are possible.
