Wiring - Daikin RXM18VVJU Installation Manual

Wiring

WARNING
• Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electric 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.
• The circuit must be protected with safety devices in accordance with local and national codes, i.e. a circuit breaker.
• Use an all-pole disconnection type circuit breaker with at least 1/8 inch (3mm) between the contact point gaps.
• When carrying out wiring, take care not to pull at the conduit.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
CAUTION
Precautions to be taken for power supply wiring
• When connecting the inter-unit wires to the terminal block using a single core wire, be sure to curl the end of the lead.
Improper work may cause heat and fire.
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.
Screw
• Do not turn on the circuit breaker until all work is completed.
1) Strip the insulation from the wire (3/4 inch (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.
Recommend using AWG12, stranded and insulated
wire for connections between indoor and outdoor units.
Local code always supersedes recommendation.
NOTE
Take care to ensure that all wiring between indoor unit and outdoor unit has a consistent connection. Any splices can cause
communication errors.
9
Good Wrong
Flat washer
A
Round
crimp-style
terminal
Firmly fix the wires with
the terminal screws.
1
Indoor
2
3
unit
Strip wire end
to this point.
Good
Screw
Round crimp-style
terminal
Flat washer
Good
Arrow view A
Outdoor
unit
1 2 3 L L
1 2
Firmly fix the wires with
the terminal screws.
Ground
Excessive strip length
may cause electric shock
or current leakage.
Wrong
Round crimp-style
terminal
Screw
Flat washer
Round crimp-style
terminal
Wrong
Follow local codes
for wiring and safety Power supply
devices between 60Hz 208-230V
outdoor unit and power 20A
source.
Stranded wire
■
English