Daikin 2MXS18WMVJU9 Installation Manual page 14

Wiring
[Method of Mounting Conduit]
• When connecting indoor units for 3 rooms or more, open knockout holes without deforming the conduit mounting plate.
1) Dismount the service lid by removing the 2 screws.
2) Slide the protection plate up and remove it.
3) Pass wires through the conduit and secure them with a lock nut.
Conduit
Lock nut
[Wiring procedure]
1) Strip the insulation from the wire (3/4inch (20mm)).
2) Connect the inter-unit wires between the indoor and
outdoor units so that the terminal numbers match.
Tighten the terminal screws securely. It is recommended
that a slot-head screwdriver be used to tighten the
screws.
3) Be sure to match the symbols for wiring and piping.
4) Pull the wire lightly to make sure that it does not
disconnect.
5) Pass the wiring through the cutout on the bottom of the
protection plate and attach the protection plate.
6) After completing the work, reattach the service lid to its
original position.
Shape the wires so that there is
no lifting of the protection plate
or other structural parts.
Ground
This air conditioner must be grounded. For grounding, follow all local, and state electrical codes.
13
Knockout holes
Conduit
mounting plate
Protection plate
Conduit mounting plate
Service lid
Outdoor unit
Room
A
Room
C
Indoor unit
Room A
Recommend using AWG14, stranded and
insulated wire for connections between indoor
and outdoor units.
Local code always supersedes recommendation.
Room A Room B
power supply
Room C
Room D
Stop valve cover
Note: Take care to ensure that all wiring
Room power supply
B
between indoor unit and outdoor unit has a
consistent connection. Any splices can
cause communication errors.
Room
D
Follow local codes
for wiring and safety
devices between
outdoor unit and
power source.
To room D
To room C Ground
To room B
Use the specified wires and
connect them securely.
60Hz 208/230V
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English