Daikin ARXM25M3V1B9 Installation Manual page 14

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 an earth leak detector capable of handling higher harmonics must be used, 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 block.
Use the specified wire type
and connect it securely.
Observe the notes mentioned below when wiring to the power supply terminal block.
Precautions to be taken for power supply wiring.
CAUTION
• When connecting the connection wires to the terminal block 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.
12
Inter-unit wire
H05RN
Indoor
unit
Firmly secure wire retainer so wire
terminations will not receive external stress.
Wrong
Firmly fix the wires with
Outdoor unit
the terminal screws.
Firmly fix the wires with
the terminal screws.
Power supply
terminal block
Shape wires so
that the service
cover and stop valve
cover fit securely.
Make sure that the earth wire between
the pull relief and terminal is longer than
the other wires.
Strip wire end
to this point.
Good
Round crimp-style
terminal
Power supply wire
H05RN
Power supply
Safety Earth leakage
50Hz 220-240V
breaker circuit breaker
RXM20 10A
Earth
RXM25/35
13A
ARXM25/35
1-3
B
A
A<B
Excessive strip length
may cause electrical
shock or leakage.
Wrong
Stranded wire
English