◆ The ELB (Earth leakage breaker), FUSE and S (Main switch) must be installed to each power source of
outdoor unit and indoor units. If not, it may cause of an electric
al shock or fire.
◆ Perform the
electric
al
work
according to
the
regulations of each region and this installation and
maintenance manual. A separate, dedicated electrical circuit must be used. If the electrical wiring work is
perform
ed
incorrectly or there is a capacity shortage of the power circuit, it will cause an electric shock or
fire.
◆ Check that the ground wire is securely connected. Otherwise, it may lead to an electrical shock. Do not
connect the ground wiring to gas piping, water piping, lightning conductor, or telephone ground wirings.
◆ In the electrical wiring connection for RAS-070~120HNBRMQ2, do not connect the live wires (L1/L2/L3)
to the terminals N of the terminal block TB1. Otherwise, printed circuit board may be damaged.
(5) The transmission cable should be separated from the power supply wiring.
Keep at least 5cm distance between the transmission cable and the power supply wiring, and also min.
1.5m distance between the transmission cable and power supply wiring for other electrical devices. If it is not
secured, put the power supply wiring into the metal conduit tube to separate from other wirings.
(6) Do not connect the power supply wiring to the terminals 1 and 2 on the terminal block for transmission
wiring. Otherwise, printed circuit board may be damaged.
(7) Connect the ground wire for the outdoor/indoor units. The ground wiring work under the condition of
100Ω (max.) ground resistance should be performed by the qualified person.
(8) Tighten screws for the terminal block according to the following table:
Size
Tightening Torque
M4 1.0~1.3 N·m
M5 2.0~2.5 N·m
M6 4.0~5.0 N·m
M8 9.0~11.0 N·m
M10 18.0~23.0 N·m
Table 5.1 Electrical Data and Recommended Characteristics
Model
Power
Source
Maximum
Running
Ampacity
(A)
Power Supply
Wiring
(Cores×mm
2
)
Transmission
cable
(Cores×mm
2
)
ELB
Rated
Ampacity
(A)
Rated Sensitive
Ampacity
(mA)
070~090
20.5
3×4.0 2×0.75
25
30
100~120
380~415V
3N~ 50Hz
26.0
3×6.0 2×0.75
32
30
(1) Connect the power s
upply wirings to the terminal block TB1 and ground wiring to the terminal in the
electrical control box. The ELB (Earth leakage breaker), FUSE and S (Main switch) must be installed to each
power source of outdoor unit.
(2)
Con
nect
the tran
smi
ssion ca
ble
s
between the outdoor unit and indoor units to the terminals 1 and 2 on
the terminal block. The transmission cables must be made from the shielded twist
pair cabling. Proper bon
di
ng
and termination of the cable shield is required as per guidelines. The installation must be considered per
application and local code requirements. Transmission cable shall be a minimum of 0.75mm
2
, 2-Conductor,
Stranded Copper.
(3) Connect the transmission cables between the indoor unit and wired controller to the terminals A and B
on the terminal block.
(4) Connect the transmission cables between the indoor unit and wired controller to the terminals A and B
on the terminal block.
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