communication wire connection
Fig. 6.1 One phase indoor unit and outdoor unit
19
If connected, the printed circuit board will be damaged.
These terminals are for the Control.
Do not connect the Power Source Line to the terminal 1 and 2.
INCORRECT
(ONE PHASE)
Indoor Unit
Outdoor Unit
ELB for
(4) Use twist pair cable with shielded for
unit. Refer to Fig. 6.2.
Refer to Fig. 6.1.
6.2 Electrical Wiring Connection
(1) Connect the power supply wires to the
terminal board in the electrical control box
of both outdoor unit and indoor unit. And
connect the earth wire to the electrical
control box of outdoor unit.
In addition, connect the earth wire to earth
screw in the electrical control box of indoor
(2) Connect the wires between the outdoor
and indoor units to terminals 1 and 2 on the
terminal board.
If power supply wiring is connected to 1
and 2 of terminal board (TB1), printed
circuit board will be damaged.
Remote
Control
Switch
(Option)
(3) Do not wire in front of the fixing screw of
the service panel. If do, the screw can not
be removed.
NOTES:
2. Total wiring length for remote control switch
can be extended up to 500m.
If total wiring length less than 30m, it is
possible to use the normal wiring (0.3mm
2
)
except twist pair cable.
control between outdoor unit and indoor
unit, control wiring between indoor units,
wiring (1 and 2) for remote control switch
1. In case of total wiring length at intermediate
wiring between outdoor unit and indoor unit
and between indoor units is less than 100m, it
is possible to use the normal wiring (more than
0.75mm
2
) except twist pair cable.
and transmission wiring (A and B)
for remote control switch .
ELB for
Outdoor Unit
Indoor Unit
Indoor Unit
CORRECT (ONE PHASE)
Remote
Control
Switch
(Option)
Remote
Control
Switch
(Option)
(ONE PHASE)
INCORRECT
ELB for
Outdoor Unit
Outdoor Unit
Indoor Unit
FUSE
Switch
FUSE
Switch
1P,220-240V~ 50Hz
1P,220-240V~ 50Hz
1P,220-240V~ 50Hz
