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(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+bϹ200m a+b+cϹ200m or less
(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)Ϲ200m gϹ200m or less
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): 50m or less
Local remote controller wiring: 10m or 20m or less for the optional remote controller cable
When using 2-core cable of 0.3 ~ 1.25mm
2
, it can be extended up to 200m.
4.3.3 K-control transmission line
(1) In case of K-control Mr.Slim air conditioning system
Total wiring length (m):
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
Local remote controller wiring: 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).
Figure 4-2 A-control model wiring example
