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[Example to use relay board]
(2) In case of K-control Y-series system
Total wiring length (p): 500m or less, when exceeded this length, be sure to use the relay board.
Figure 4-4 Relay board wiring example
Centralized control
system M-NET bus
K-control Mr.Slim
air conditioner
indoor unit
K-transmission
converter
Relay board Relay board
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
m
m
m
Figure 4-5 K-control Y-series wiring example
Centralized control
system M-NET bus
K-control
Y-series
indoor unit
K-transmission
converter
K-control
Y-series
outdoor unit
K-control
Y-series
outdoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Local
remote
controller
p
(3) In case of system where K-control Mr.Slim air conditioner and Y-series are mixed
Be sure to use the relay board as shown in the figure below, and connect the indoor unit of K-control
Mr.Slim air conditioner to the secondary side of the relay board.
Figure 4-6 K-control mixing system example
Centralized control
system M-NET bus
K-control Mr.Slim
air conditioner
indoor unit
K-control
Y-series
outdoor unit
K-transmission
converter
Relay board
Local
remote
controller
K-control Mr.Slim
air conditioner
indoor unit
Local
remote
controller
K-control
Y-series
indoor unit
Local
remote
controller
p
[Caution for wiring connection work]
● The wiring connection work of the equipment delivered (MELANS equipment, air
conditioning equipment, etc.) including power and earth lines.
● Install the transmission line and signal line apart from the power line and earth
line. If not, the noise from the power/earth lines will mix into the transmission line
or signal line causing to generate erroneous operation.
● In case of shielded line, provide one-point grounding at each transmission line.
(Relay shielded line at the terminal block of each equipment.)
CAUTION