Daikin ERWQ02AAV3 Installation Manual page 12

Wiring
WARNING
• Do not use tapped 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 domestic hot water tank. 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
domestic hot water tank and the outdoor unit 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.
10
Firmly fix the wires with
the terminal screws.
Inter-unit wire
4-core 1.5mm² or more
H05RN
Domestic
hot water
tank
Firmly fix the wires with
the terminal screws.
Firmly secure wire retainer so wire
terminations will not receive external stress.
Strip wire end
to this point.
Wrong
Outdoor unit
Power supply wire
3-core 2.5mm² or more
H05RN
Safety
breaker
16A
Earth
Power supply
terminal block
Shape wires so
that the service lid
and stop valve
cover fit securely.
Excessive strip length
may cause electrical
shock or leakage.
Good Wrong
Round crimp-style
terminal
Power supply
Earth leakage
50Hz 220-240V
circuit breaker
Stranded wire
English