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English
1-13
ELECTRICAL WIRING CONNECTION
IMPORTANT : * The figures shown in the table are for information purpose only. They should be checked and selected
to comply with the local/national codes of regulations. This is also subject to the type of installation and
conductors used.
** The appropriate voltage range should be checked with label data on the unit.
All wires must be firmly connected.
Make sure all the wire do not touch the refrigerant pipings, compressor or any moving parts.
Make sure no external pressure is applied to the terminal connectors and wires.
Make sure all the covers are properly fixed to avoid any gap.
Use round crimp-style terminal for connecting wires to the power supply terminal block. Connect the wires by matching
to the indication on terminal block. (Refer to the wiring diagram attached on the unit).
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Use the correct screwdriver for terminal screws tightening. Unsuitable screwdrivers can damage the screw head.
Over tightening can damage the terminal screws.
Do not connect wire of different gauge to same terminal.
Keep wiring in an orderly manner. Prevent the wiring from obstructing other parts and the terminal box cover.
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Attach insulation sleeve
Round crimp-style terminal
Electric wire
Connect wires of the
same gauge to both side.
Do not connect wires of the
same gauge to one side.
Do not connect wires
of different gauges.
! CAUTION
• Entire PCB replacement required if fuse failure occurs.
SIG
1
2
SIG
1
2
L2
GR
L1
Conduit mounting plate
Lock nut
Conduit
Back
RXB09/12
*
, RKB09/12
*
15A
RXB18/24
*
, RKB18/24
*
20A
Indoor
unit
Outdoor unit
Safety devices in
accordance with
local and national
codes, i.e. a
circuit breaker
Power supply
60Hz 208-230V
Ground
Firmly fix the
wires with the
terminal screws.
Firmly fix the wires with
the terminal screws.
Recommend using AWG14, 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.
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