Daikin 3MXS24RMVJU Installation Manual page 14

Wiring
[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 service hatch or
other structural parts.
CAUTION
Precautions to be taken for power supply wiring
• When using stranded wires, make sure to use the round crimp-style
terminal for connection to the power supply terminal block.
Flat washer
Screw
• When connecting the inter-unit wires to the terminal block using a single core wire, be sure to curl the end of the lead.
I mproper work may cause heat and fires.
Ground
This air conditioner must be grounded. For grounding, follow all local, and state electrical codes.
13
A
Round
crimp-style
terminal
Good Wrong
Stripping wire at terminal block
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
Screw
Round crimp-
style terminal
Screw
Flat washer
Good
Arrow view A
Strip wire end
to this point.
power supply Note: Take care to ensure that all wiring
Room
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
To room B
Use the specified wires and
connect them securely.
Round crimp-style
terminal
Screw
Flat washer
Flat washer
B
Round crimp-
style terminal
Wrong
Round
crimp-style
terminal
Excessive strip length
may cause electric shock
or current leakage.
Good Wrong
60Hz 208/230V
Stranded
wire
Screw
Round crimp-
style terminal
Flat washer
Good
Screw
Flat washer
Round crimp-
style terminal
Wrong
Arrow view B
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English