12
English
• Use the required wirings, connect them securely and fix
these wirings so that external force may not apply to the ter-
minals.
• Use a proper screw driver for tightening the terminal screws.
If an improper screw driver is used, it may damage the screw
head and a proper tightening cannot be carried out.
• If a terminal is over tightened, it may be damaged. Refer to
the table shown below for tightening torque of terminals.
• Conduct wiring so that the earth lead comes out from the
notched part of the cup washer. (Otherwise, earth lead con-
tact will be insufficient and grounding effect may be lost.)
• Do not carry out soldering finish when stranded wirings are
used.
9-1 CONNECTION OF TRANSMISSION WIRING, EARTH
WIRING AND FOR THE REMOTE CONTROLLER WIR-
ING
(1) Loosen the fixing screws (2 pcs.) while holding the control
box cover, and then remove the control box cover.
(2) Cut off the knockout hole and put the resin bushing (10)
(accessory) on the back side (sheet metal).
(3) Connect the transmission wiring through the resin bushing
(10) accessory to the terminal block (X2M: 3P) while match-
ing up the numbers (1 to 3), and then connect the earth wir-
ing to the earth terminal.
After this is done, use the wiring fixture (11) and clamp (4)
attached to bind the wiring without applying tension to the
connecting section of the wirings.
(4) Connect the remote controller wiring led from the routing
hole to the terminals (P1 and P2) of the terminal block
(X1M: 6P). (There is no polarity.)
After this is done, use the wiring fixture (11) and clamp (4)
attached to bind the wiring without applying tension to the
connecting section of the wirings.
Tightening torque (N·m)
Terminal block for remote control-
ler and transmission wiring
0.88 ± 0.08
Terminal block for power supply
1.47 ± 0.14
Earth terminal
1.69 ± 0.25
Notched part
Ring type crimp style terminals
Cup washer
Remote controller
wiring
R10 or more
Terminal block (X2M)
R10 or more
Transmission and earth wiring connection method
R10 or more
Earth terminal
Outdoor unit
Indoor unit
Terminal block
Terminal block
Terminal numbers of outdoor and
indoor units must be matched
Transmission wiring connection method
Remote controller wiring
connection method
(no polarity)
Wiring penetration
hole
Rear piping
penetration
cover
Remote controller
wiring
Cut off the
knockout hole and
put the resin
bushing
(10) (accessory)
Printed Circuit
Board
Control box
Wiring diagram Label (Rear)
Control box
cover fixing screws
(2 pieces)
Control box cover
Transmission
wiring and
Earth wiring
Transmission wiring
and Earth wiring
Terminal block (X1M)
Forbidden
• Never connect the power supply
wiring.
• Do not carry out soldering finish.
Forbidden
• Do not carry out soldering finish.
4PEN469440-1D.book Page 12 Tuesday, June 27, 2017 10:55 AM
