15
English
Wiring
CAUTION
Ground
This air conditioner must be grounded. For grounding, follow all local, and state electrical codes.
Good
Round crimp-
style terminal
Flat washer
Screw
Wrong
Flat washer
Round crimp-
style terminal
Screw
Flat washer
Screw
Round
crimp-style
terminal
A
Arrow view
A
Stranded
wire
Round crimp-style
terminal
•
Precautions to be taken for power supply wiring. When using
stranded wires, make sure to use the round crimp-style terminal
for connection to the power supply terminal
Strip wire end
to this point.
Excessive strip length
may cause electric shock
or current leakage.
Stripping wire at terminal block
Good
Wrong
Good
Wrong
•
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 fires.
1-3
A
B
A<B
• Make sure that the
earth wire between
the pull relief and
terminal is longer
than the other
wires.
LAYOUT DIAGRAM OF ELECTRICAL COMPONENTS
MULTIMETER
(DC, VOLTAGE RANGE)
*ELECTRONIC EXPANSION VALVE
COIL LEAD WIRE CONNECTOR (ROOM-D)
AC
DC
DC
ELECTRONIC EXPANSION VALVE
COIL LEAD WIRE CONNECTOR (ROOM-C)
ELECTRONIC EXPANSION VALVE
COIL LEAD WIRE CONNECTOR (ROOM-B)
ELECTRONIC EXPANSION VALVE
COIL LEAD WIRE CONNECTOR (ROOM-A)
THERMISTOR LEAD WIRE CONNECTOR
THERMISTOR LEAD WIRE CONNECTOR (GAS PIPE)
THERMISTOR LEAD WIRE CONNECTOR (LIQUID PIPE)
FAN MOTOR LEAD WIRE CONNECTOR
FOUR WAY VALVE LEAD WIRE CONNECTOR
OL LEAD WIRE CONNECTOR
*HIGH PRESSURE SWITCH
CONNECTOR
S
20 S
21 S
2
2 S
2
3
S92
S93
S40
S80
S7
0
U
W
V
COMPRESSOR LEAD WIRE CONNECTOR
*SOLENOID VALVE LEAD WIRE CONNECTOR
DC-
FU
2
S9
0
S2
4
*ELECTRONIC EXPANSION VALVE
COIL LEAD WIRE CONNECTOR (ROOM-E)
AL2 AL1
* IT MAY NOT BE USED DEPENDING ON THE MODEL
3PEN417620-3N.book Page 15 Friday, June 21, 2019 9:50 AM
