A-Control Transmission Line; K-Control Transmission Line - Mitsubishi Electric G-50A Technical Manual

(1) Centralized control system M-NET bus
The power supply distance of the centralized control system M-NET bus can be expressed by the
equation below.
This represents the distance limitation to allow powering of the centralized control system M-NET bus.
Exceeding this distance makes the power supply to the end equipment impossible disabling communication
and control.
a+b 200m
(2) Indoor-outdoor transmission system M-NET bus
The power supply distance of the indoor-outdoor transmission system M-NET bus can be expressed by
the equation below.
This represents the distance limitation to allow powering of the Indoor-outdoor transmission system M-
NET bus. Exceeding this distance makes the power supply to the end equipment impossible disabling
communication and control.
d+e(f) 200m
When the wiring length of local remote controller exceeds 10m, add the exceeded portion to the value
of "total wiring length of 500m or less" and "power supply distance of 200m or less."

4.3.2 A-control transmission line

Arrange the total wiring length per 1 set of air conditioner as follows in the case of the example 4-2.
Total wiring length (k):
Local remote controller wiring:

4.3.3 K-control transmission line

(1) In case of K-control Mr.Slim air conditioning system
Total wiring length (m):
Local remote controller wiring:
Centralized control
system M-NET bus
18
a+b+c 200m or less
g 200m or less
50m or less
10m or 20m or less for the optional remote controller cable
When using 2-core cable of 0.3 ~ 1.25mm
Centralized control
Outdoor unit
system M-NET bus
M-NET adaptor
Figure 4-2 A-control model wiring example
Indoor unit 20 sets, local remote controller 10 sets or more ----- 500m or less
Indoor unit 50 sets, local remote controller 20 sets or less ----- 200m or less
12m or less for the remote controller cable attached
When it exceeds 12m, change the exceeded portion with wiring of
φ 1.6 or more and add it to value of the total wiring length (m).
K-transmission
converter
Local
remote
controller
Figure 4-3 K-control Mr.Slim air conditioner wiring example
A-control Mr.Slim air conditioner indoor-outdoor connecting line
k
Indoor unit
10m (Up to 200m)
Local
remote
controller
K-control Mr Slim air conditioner indoor-outdoor connecting line
m
K-control Mr Slim K-control Mr Slim
air conditioner air conditioner
Local
indoor unit indoor unit
remote
controller
2
, it can be extended up to 200m.
Indoor unit
K-control Mr Slim
air conditioner
Local
indoor unit
remote
controller