Sharp AE-X2M20RU, Installation Manual, Page: 5 / 18

ENGLISH
EN-4
• Fit a disconnect switch, having a contact
separation of at least 0.12 inch (3 mm) in
all poles, to the electricity power line.
Prepare a dedicated power supply circuit. For the connections, see below.
Supply power 208/230 V, single-phase
Guaranteed voltage 187-253 V
Max. Fuse 35 A
Min. Circuit Ampacity 23 A
5 POWER CABLING
L1 L2
L1
2
2
UNIT B
UNIT A
L2
L1 L2
Fig.4
Lock nut
Expansion
Valve Angle
Conduit
Connector
Connection Cable
Power supply Cable
Wire Conduit
12.5 in (318mm)
15 in (380mm)
L1 L2 2 L1 L2 2
L1 L2 2 L1 L2 2
L1 L2
A B
Caution:
• Be very careful not to confuse the terminal connections.
Wrong cabling may damage the internal control circuit.
• Be sure to connect the cable to match the markings on
the outdoor unit’s terminal board and those of the indoor
unit.
• Be sure to put the cable leads deep into the terminal
board and tighten up the screws. Poor contact can
cause overheating of
fi re, or malfunction.
• Be sure to use a disconnect switch. Follow the local and
state electrical codes.
Miswiring of connecting cable will be self-corrected by the
wire check operation.
(1) Turn the circuit breaker on.
(2) Check that all LED(LED1A, LED1B) on the display board are fl ashing
simultaneously.
If one or more of the LED is/are kept lit, check for mismatching terminal
markings ( , L1, L2, 2) and correct them.
(3) To start the wire check, press the WIRE CHECK button(SW2) for 5
seconds or more.
The operation lamp on the indoor unit will fl ash, and three BEEP will be
emitted.
All LED will fl ash rapidly.
(4) When wire check is completed normally, all LED will fl ash simultaneously
and the operation will stop. (Wire check time: 5 - 10 minutes)
When self-correction can not done, all LED will indicate triple fl ash for
eight times and the operation will stop. Check and correct following
points.
• Check all pipings are connected.
• Check the stop valves are open.
After correction, repeat the wire check again. If error is still detected, or other types
of LED signal should be indicated, please contact a service technician. (Refer to
wiring diagram attached inside the outdoor unit for self diagnosis signal.)
6 WIRE CHECK
PUMP DOWN
SELECT
WIRE CHECK
OFF
1
2
ON
LED1B
DSW1
SW1
SW2
LED1A
WIRE CHECK button (SW2)
Note:
• Wire check may not be performed
when the outdoor temperature is
below 41 °F (5°C).
Fig.5
Fig.6
Fig.3
less than 3/8 in
(10mm)
(Commercially
available)
(Commercially
available)
(Commercially
available)
Hook
Insert the cable into Cable Holder
Indoor unit A Indoor unit B
Disconnect
switch
Power Supply
208/230V 60Hz
Ground
Outdoor unit
AE-X2M20RU_3_LANG.indb EN-4 AE-X2M20RU_3_LANG.indb EN-4 2013-12-19 21:01:20 2013-12-19 21:01:20