MXZ-SM48NAMHZ Service Manual

45
OCH789
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 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 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.
1. Standard operation
2. Operation using 2 M-NET remote controllers
• Using 2 M-NET remote controllers for each CITY MULTI series 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 CITY MULTI series indoor
unit (M-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 termi
-
nal block (TB6) for M-NET the remote controller (M-NET
RC).
c. Set the address setting switch (on outdoor unit P.C.B)
as shown below.
3. Group operation
• Multiple CITY MULTI series indoor units operated together by 1
M-NET remote controller
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.
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 CITY MULTI series indoor unit (M-IC)
group to terminal block (TB6) on the M-NET remote controller.
c. Set the address setting switch (on outdoor unit P.C.B) as
shown below.
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.
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
TB5
TB15
(01)
(101)
M-NET RC
(Main)
(151)
M-IC
TB3
TB7
(51)
OC
TB5
TB15
(02)
M-IC
M-NET RC
(Sub)
(102)
M-NET RC
(Main)
(152)
M-NET RC
(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
TB5
1 2
TB15
(01)
(101)
M-IC
A B
M1 M2
TB3
S
TB7
(51)
OC
L
1 L2
TB5
TB15
(02)
M-IC
M-NET RC
(102)
M-NET RC
r1
r2
M1 M2 S M1 M2 S
1 2
M1 M2 S
A B
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
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
Unit Range Setting Method
M- IC (Main) 001 to 050
Use the smallest address within
the same group of CITY MULTI
series 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
CITY MULTI series 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.