Mitsubishi Electric AG-150A-A Installation Manual page 8

NOTES
* Apply following precautions when using the K transmission converter (model PAC-SC25KAA; discontinued) and controlling the
M-NET model and K control model with the same controller.
Refer to the K transmission converter (PAC-SC25KAA) installation manual for details.
1 Centralized controller address
Always set the controller address to "000".
2 Centralized controller function selects
Set the "K Converter Address" by using the "M-NET Settings" on the Initial settings screen.
3 Indoor unit address
Set all M-NET model indoor units from the No.1 unit, then set the K control model addresses.
Indoor unit No.1 unit ~M-NET indoor unit max. address> K control indoor unit minimum address ~50
4 K control model group No.
The minimum indoor address No. of that group becomes the group No. (Same for K control side local remote controller.)
5 The remote controller address does not need to be included in the K-control unit group settings.
NOTE
* Some types of units cannot be controlled from the AG-150A controller.
1-1. M-NET wiring configuration
(1) Types and maximum allowable length of M-NET transmission cables
Cable type
Maximum transmission line distance between the outdoor unit
and the farthest indoor unit
Distance of the transmission line for the central control system
and indoor-outdoor transmission line to the farthest indoor unit
(Maximum line distance via outdoor unit)
The wiring diagram below shows a sample M-NET transmission wiring for a CITY MULTI system.
The maximum total line distance (centralized control and indoor-outdoor transmission lines) for each M-NET system is expressed
in the formula below. Observe the maximum length to ensure proper signal transmission to and from the connected equipments
over the M-NET transmission line.
If the maximum line length is exceeded, the M-NET signals will be attenuated, resulting in communication error and control
failure.
a+b+d+e(f) ≤ 500m
The local remote controller cable length should be 10 m or shorter. The part that exceeds the 10 m limit should be included in the
maximum total line length of 500 m.
Centralized control transmission line
Centralized
controller
(AG-150A)
Power supply
transmission line
(A) Centralized control transmission line
The power supply distance for the centralized controller transmission line is expressed in the formula below.
This is the maximum length of the centralized control transmission line to which proper amount of power reaches. If the maximum
line length is exceeded, those equipments at the end of the transmission line may not receive enough power, resulting in
communication error and control failure.
a+b ≤ 200m
(B) Indoor-outdoor transmission line
The power supply distance for the indoor-outdoor transmission line is expressed in the formula below.
This is the maximum length of the indoor-outdoor transmission line to which proper amount of power reaches. If the maximum
line length is exceeded, those equipments at the end of the transmission line may not receive enough power, resulting in
communication error and control failure.
d+e(f) ≤ 200m
The length of the local remote controller cable that exceeds the 10 m limit should be included in the maximum total line length of
500 m and in the power supply distance of 200 m.
Facility type
Type
No. of cores
Cable size
a+b+c+g ≤ 500m
b
Outdoor
unit
a
unit for
c
Outdoor
unit
a+b+c ≤ 200m
g ≤ 200m
Shielded cable CVVS·CPEVS
* The maximum line distance from the power supply unit on
the transmission line for the central control system to each
outdoor unit or to the system controller is 200 m.
Indoor-outdoor transmission line
d e
Indoor unit
f
g
Indoor unit
- 7 -
All facility types
2-core cable
2
Minimum 1.25 mm
200 m
500 m
e(f)+d+c+g ≤ 500m
Indoor unit
Indoor unit
10m
M-NET
remote
controller
Indoor unit