4
3. Connecting the MA Interface to Indoor Unit
4. Connecting the MA Interface with each system
(For details on each system, see the relevant instruction manual.)
● Connect the interface unit
➊
and the indoor control board of a room air conditioner using the connecting cable (5-core) that
comes with the interface unit
➊
.
Room air conditioner
Indoor
controller
board
Thin part of the connecting cable
Make sure to wire and shield the cable so that the customer does not contact it.
Connect the connecting cable (5-core) that
comes with the interface unit
➊
to the connector
CN105 on the indoor control board of a room air
conditioner.
Thick part of the
connecting cable
Interface unit
➊
Connecting
connector
Warning
Securely fix the
connecting cable in
the designated place.
Failure to do so may
cause an electric shock,
fire, or malfunction.
● The connecting cable (5-core) connected to a room air conditioner should be wired according to the room air conditioner
installation manual.
CN105
(CN92)
Notes
• Extending or shortening the connecting cable (5-core) that comes out of the interface unit
➊
cause it to malfunction. Also,
keep the connecting cable (5-core) as far as possible away from the electrical wires and ground wire. Do not bundle them
together.
• To prevent the board from being damaged by static electricity, always remove static electricity before starting work.
Notes
• If the connecting cable is not securely mounted, the connector may come off, break, or malfunction.
• The dip switch (SW500) and the rotary switch (SW580) on the interface unit
➊
do not operate if they are not set correctly.
Note
When using a thick connecting cable or two connecting
cables, you can broaden the hole on the interface unit
using a nipper.
After broadening the hole, use a file to rub the edge on the
hole to prevent the cables from being damaged.
● Fasten the cable tie
➍
as shown in the figure to prevent
undesirable movement of the connecting cable.
● The connecting cable (5-core) connected to a room air
conditioner should be mounted at the room air conditioner
or its vicinity.
If the screw for the cable mount of the room air conditioner
cannot be used, replace with the screw for mounting
➏
.
Connecting cable for
MA remote controller
Cable tie
➍
Mounting
cord clamp
➋
Cable mount
Connecting cable
(5-core)
Screw
➏
● Conduct the settings of the interface unit
➊
dip switch (SW500) and rotary switch (SW580) before turning on the power.
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