Daikin RXS20K3V1B Installation Manual page 17

Wiring
WARNING
• Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating,
electrical shock, or fire.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
• Be sure to install an earth leak detector. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that it must be used an earth leak detector capable handling harmonics in order to
prevent malfunctioning of the earth leak detector itself.)
• Use an all-pole disconnection type breaker with at least 3mm between the contact point gaps.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
• Do not turn on the safety breaker until all work is completed.
1) Strip the insulation from the wire (20mm).
2) Connect the connection wires between the
indoor and outdoor units so that the terminal
numbers match. Tighten the terminal screws
securely. We recommend a flathead screwdriver
be used to tighten the screws. The screws are
packed with the terminal board.
Use the specified wire type
and connect it securely.
Observe the notes mentioned following when wiring to the power supply terminal board.
Precautions to be taken for power supply wiring.
CAUTION
• When connecting the connection wires to the terminal board using a single core wire, be sure to perform curling.
Problems with the work may cause heat and fires.
Good
Stripping wire at terminal block
• If the stranded wires must be used, make sure to use the round
crimp-style terminal for connection to the power supply terminal block.
Place the round crimp-style terminals on the wires up to the covered
part and secure in place.
3) Pull the wire and make sure that it does not disconnect. Then fix the wire in place with a wire stop.
■
English
Firmly fix the wires with
the terminal screws.
Inter-unit wire
4-core 1.5mm² or more
H05RN
1
Indoor
2
3
unit
1
1 2 3
L
Firmly secure wire retainer so wire
terminations will not receive external stress.
Wrong
Outdoor unit
1 2 3 L N
Firmly fix the wires with
the terminal screws.
Power supply
2 3
terminal block
Shape wires so
N
that the service lid
and stop valve
cover fit securely.
Excessive strip length
Strip wire end
may cause electrical
to this point. shock or leakage.
Good
Round crimp-style
terminal
Power supply wire
3-core 2.5mm² or more
H05RN
Safety
Power supply
Earth leakage
breaker
circuit breaker 50Hz 220-240V
16A
Earth
Wrong
Stranded wire
10