Electrical Wiring Connection - Hisense AVW-48UESC Installation & Maintenance Manual

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
unit. Refer toFig.6.2
(3) Do not wire in front of the fixing screw of
the service panel. Otherwise, the screw can not
be removed.
(4) Use shielded twist pair for
control between outdoor unit and indoor
unit, control wiring between indoor units,
Connect the wires between the outdoor
and indoor units to terminals 1 and 2 on
the terminal board.
(3N~)
CORRECT
380-415V 3N~ 50Hz 220-240V~ 50Hz
ELB for
ELB for
Indoor Unit Indoor Unit
Outdoor Unit
Outdoor Unit
INCORRECT (3N~)
380-415V 3N~ 50Hz
ELB for
Outdoor Unit
Outdoor Unit
Fig. 6.1 Three phase indoor unit and outdoor unit
transmission wire connection
(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.
Refer to Fig. 6.1
Remote Remote
Control Control
Switch Switch
(Option) (Option)
Indoor Unit
Remote Remote
Control Control
Switch Switch
(Option) (Option)
Indoor Unit
NOTES:
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
2
0.75mm ) except shielded twist pair .
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
except shielded twist pair.
19
2
)