9 ■English
Wiring
WARNING
• Donotusetappedwires,extensioncords,orstarburstconnections,astheymaycauseoverheating,electricalshock,orre.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminalblock.)Doingsomaycauseelectricshockorre.
• Be sure to install a ground fault circuit interrupter. (One that can handle higher harmonics.)
(This unit uses an inverter, which means that a ground fault circuit interrupter capable of handling harmonics must be used
in order to prevent any malfunction of the ground fault circuit interrupter itself.)
• Use an all-pole disconnection type circuit breaker with at least 1/8 inch (3mm) between the contact point gaps.
• When carrying out wiring connection, take care not to pull at the conduit.
• Donotconnectthepowerwiretotheindoorunit.Doingsomaycauseelectricshockorre.
• Do not turn on the circuit breaker until all work is completed.
1) Striptheinsulationfromthewire(3/4inch(20mm)).
2) Connect the inter-unit wires between the indoor and outdoor units so that the terminal numbers match. Tighten the
terminalscrewssecurely.Werecommendaatheadscrewdriverbeusedtotightenthescrews.
The screws are packed with the terminal block.
1
2
3
1 2 3
Circuit
breaker
Ground fault
circuit interrupter
Ground
Firmly fix the wires with
the terminal screws.
Use AWG16 if the connection wire
length is less than 33ft (10m), or
AWG14 if it is 33ft (10m) or more.
Outdoor unit
Indoor
unit
Power supply
60Hz 208-230V
Firmly fix the
wires with the
terminal screws.
Use AWG 14 wires.
RX09/12∗, RK09/12∗
RXN09/12/18∗, RKN09/12/18∗
RX18/24∗, RK18/24∗
RXN24∗, RKN24∗
15A
20A
L
1
L
2
09/12 class
<Method of mounting conduit>
• Aprotectionplateisxedforprotectionfromthehigh-voltagesection.
1) Dismount the stop valve cover by removing the screw.
2) Dismount the protection plate by removing the 2 screws.
3) Dismount the conduit mounting cover by removing the 2 screws.
4) Pass wires through the conduit and secure them with a lock nut.
5) After completing the work, reattach the stop valve cover, the conduit mounting cover, and the protection plate to its
original position.
1
2
3
1
2
3
1
2
3
Screws
Conduit
mounting
cover
Screws
Protection plate
Power supply
terminal block
Shape wires so
that the protection
plate and conduit
mounting plate fit
securely.
Conduit
Lock nut
Conduit
mounting
plate
L
1
L
2
01_EN_3P379970-2A.indd 9 11/6/2014 2:05:06 PM