13
English
WARNING
When wiring, form the wirings orderly so that the control
box cover can be securely fastened. If the control box cover
is not in place, the wirings may float up or be sandwiched by
the box and the panel and cause electric shocks or a fire.
• In case the piping penetration cover is cut off and used as
wiring penetration hole, after the wiring connection is fin-
ished, mend the cover.
• Seal the clearance around the wirings with putty and insulat-
ing material (field supply).
(If insects and small animals get into the indoor unit, short cir-
cuiting may occur inside the control box.)
• If the low voltage wiring (e. g. remote controller wiring) and
the high voltage wiring (transmission wiring, earth wiring) are
brought into the indoor unit from the same place, they may be
affected by electric noise (outside noise) and cause malfunc-
tion or failure.
• Keep the distance of 50mm or more between the low voltage
wiring (e. g. remote controller wiring) and the high voltage
wiring (transmission wiring, earth wiring) anywhere outside
the indoor unit. If both the wirings are laid down together,
they may be affected by electric noise (outside noise) and
cause malfunction or failure.
9-2
WIRING EXAMPLE
CAUTION
Be sure to install an earth leakage breaker to the outdoor
unit.
This is to avoid electric shocks or a fire.
For the wiring of outdoor units, refer to the installation manual
attached to the outdoor units. Confirm the system type.
• Pair type:
1 remote controller controls 1 indoor unit (standard system).
(Refer to Fig. 31)
• Simultaneous operation system:
1 remote controller controls 2 indoor units
(2 indoor units operates equally). (Refer to Fig. 32)
• Group control:
1 remote controller controls up to 16 indoor units
(All indoor units operate according to the remote controller).
(Refer to Fig. 33)
• 2 remote controllers control:
2 remote controllers control 1 indoor unit. (Refer to Fig. 36)
Remote controller wiring
(1) Install the fixture at
the wiring entrance
side.
Power supply wiring
and Earth wiring
DETAIL
Wiring fixture
(11) (accessory)
Clamp (4) (accessory)
Clamp (4) (accessory)
(3) To avoid the loosing of
the power supply
wiring and Earth
wiring, band the clamp
to tightly fit the fixture
at terminal block side.
(2) Fix the wiring to the
fixture by clamps so
that no tension will be
given to the terminal
connection.
Putty or insulation
(field supply)
Refrigerant piping
Remote controller
wiring
Low voltage wiring
Drain piping
Distance of 50mm between
High voltage wiring
Resin bushing
(10)(accessory)
Transmission
wiring and
Earth wiring
P1 P2
1 2 3
P1 P2
1 2 3
Power supply
220 - 240V
~
50Hz
Earth leakage
breaker
Outdoor unit
NOTE 1)
Indoor unit
Remote controller
(Optional accessory)
Pair type
Fig. 31
1 2 3
P1 P2
P1 P2
P1 P2
1 2 3
1 2 3
Outdoor unit
Indoor unit (Master)
Indoor unit (slave)
Remote
controller
(Optional accessory)
Simultaneous operation system
Earth leakage
breaker
NOTE 1)
Power supply
220 - 240V
~
50Hz
NOTE 2)
Fig. 32
4PEN469440-1H.book Page 13 Friday, March 22, 2019 2:36 PM
