20
6.2 Electrical Wiring Connection
6.2.1 For Outdoor Unit
The electrical wiring connection for the outdoor
unit is shown in Fig. 6.1
(1) Connect the power supply wires to L1, L2,
L3, and N (for 380-415V), for
the
three
phase
power
source
on
the
terminal
board
and
ground
wires
to
the
terminals
in
the
electrical
control
box.
(2) Connect the wires between the outdoor
and indoor units to terminals 1 and 2 on the
terminal board.
(3) Do not wire in front of the
fi
xing screw of the
service panel. If do, the screw can not be
removed.
6.2.2 Electrical Wiring Between Indoor Unit and
Outdoor Unit
Connect
the
electrical
wires
between
the
indoor
unit and the outdoor unit, as shown in Fig. 6.2 .
Check
to
ensure
that
the
terminal
for
power
source
wiring
(terminals
“L1”
to
“L1”
and
“N”
to
“N”
of each terminal board: AC380-415V)
and
intermediate
wiring
(Operating
Line:
terminals
“1”
to
“1”
and
“2”
to
“2”
of
each
terminal
board:
DC5V)
between
the
indoor
unit
and the outdoor unit coincide correctly. If not,
some component will be damaged.
(1) Use shielded wires (>0.75mm
2
) for
intermediate wiring to protect electrically
noise obstacle at length of less than 1,000m
and size complied with local code.
(2) Open a hole near the connection hole of
power source wiring when the multiple
outdoor units are connected from one power
source line.
(3) The recommended breaker sizes are shown
in Table 6.1.
(4) In the case that a conduit tube for
fi
eld-wiring
is not used,
fi
x rubber bushes with adhesive
on the panel.
Keep a distance between
each wiring ter
m
inal and
attach insulation tape or
sleeve as shown in the figure.
Insulation Tape or Sleeve
Correct
Incorrect
Do not use a solderless
ter
m
inal when
a single wire is used.
If used it causes
abnor
m
al heating at
the caulking portion
of the ter
m
inal.
If a single wire is used
connect the
wire direct as shown
in the figure.
Make a loop of the wires so that disconnecting
the wirings for replacing parts is not required.
CAUTION:
Piping Cover
Conduit
Power Supply Cable
When using conduit, do NOT lead it in the outdoor
unit. If the conduit wiring touches the co
m
pressor
and refrigerant cycle in the outdoor unit, it
m
ay
cause to da
m
age the
m
.
Rubber Bush
(Accessory)
Earth Wire
Power Supply
Cable
Control Cable
Earth
Wire
Rear Cover
Wiring Method with Cla
m
p
1. Insert the wires by into the
cord cla
m
p and cla
m
p the
m
as shown in the figure.
2. Perfor
m
wiring so that wires
do not touch the co
m
pressor,
refrigerant pipes or edge of
the covers.
Outdoor
Fig. 6.1 Wiring Connection for
Unit
Install an ELB in the power source.
If ELB is not used, it will cause electric shock or fire
at the worst.
The tightening torque of each screw shall be as
follows.
M4:
1.0 to 1.3 N-m
M5:
2.0 to 2.5 N-m
M6:
4.0 to 5.0 N-m
M8:
9.0 to 11.0 N-m
M10:
18.0 to 23.0 N-m
Keep the above tightening torque when wiring work.
Summary of Contents for JDOH Series
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Page 19: ...JE 102SN JE 162SN ...
