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12.3.4 Connect the Cable to the Outdoor Unit
1 Remove the control board cover from the unit
by loosening the screw.
2 Cable connection to the power supply through
Isolating Devices (Disconnecting means).
o
Connect approved type polychloroprene
sheathed
power supply cord
3 x 1.5
mm
2
(3/4 ~ 1.75HP), 3 x 2.5 mm
2
(2.0 ~ 2.5HP), 3 x 4.0 mm
2
(3.0HP) type
designation 60245 IEC 57 or heavier cord
to the terminal board, and connect the
others end of the cord to Isolating
Devices (Disconnecting means).
o
Do not use joint power supply cord.
Replace the wire if the existing wire (from
concealed wiring, or otherwise) is too
short.
o
In unavoidable case, joining of power
supply cord between isolating devices
and terminal board of air conditioner shall
be done by using approved socket and
plug with earth pin rated 15/16A (3/4 ~
1.75HP) or 16A (2.0 ~ 2.25HP) or 20A
(2.5HP) or 25A (3.0HP). Wiring work to
both socket and plug must follow to
national wiring standard.
3
Connection cable
between indoor unit and
outdoor unit shall be approved
polychloroprene sheathed 4 x 1.5 mm
2
flexible
cord, type designation 60245 IEC 57 or
heavier cord. Do not use joint connection
cable. Replace the wire if the existing wire
(from concealed wiring, or otherwise) is too
short. Allowable connection cable length of
each indoor unit shall be 30 m or less.
Terminal
Board
Indoor unit
Indoor &
outdoor
Connection
cable
Holder
Earth wire
longer than
others
AC wires
for safety
reason
Isolating Devices
Power
supply
cord
1
2 3
C
DRM
DRM
Remote
Agent
DRED
(Demand
response
enabling
devices)
CU-Z42***, CU-Z50***, CU-Z60***,
CU-Z71***
Applicable for : CU-Z20***, CU-Z25***, CU-Z35***,
4 Demand control signal transmission cable between outdoor unit and DRED (Demand response enabling
devices) shall be double insulation layer, polychloroprene sheathed (>50V) or type destination
AS/NZS 50000.2 with size 4 x (0.5 mm
2
to 2.0 mm
2
) cable, where the maximum allowable length is 30 m.
5 Connect the power supply cord and connection cable between indoor unit and outdoor unit according to the
diagram below.
Terminals on the indoor unit
Colour of wires (connection cable)
Terminals on the outdoor unit
Terminals on the isolating devices
(Disconnecting means)
(Power supply cord)
1 2 3
L N 1 2 3
(L) (N)
1
DRM
2
3 C
(1) (2) (3) (C)
(Demand response
enabling devices)
Terminal on the DRED
Colour of wires (connection cable)
outdoor unit
Terminal on the
6 Secure the power supply cord and connection cable onto the control board with the holder.
7 Attach the control board cover back to the original position with screw.
8 For wire stripping and connection requirement, refer to instruction 12.2.4 of indoor unit.