37
English
Ins
tallation
Step 2.1 Connecting the power and
communication cables (assembly
cable)
L1 L2
F1 F2
ŷ
When performing electrical and earthing works,
be sure to comply with the 'technical standards of
electrical installations' and the 'wiring regulations' in
the local regulations.
ŷ
Tighten the terminal block screw to 0.89
~
1.33lb
t
ft [1.2
~
1ŷP
~
NJIŷFP@
ŷ
NOTE
ŷ
Each wire is labelled with the corresponding terminal
number.
ŷ
Use shield cable (Category 5; less than 50pF/m) for
noisy environmental site.
ŷ
Power supply cords of parts of appliances for outdoor
use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC: 60245 IEC 66/
CENELEC: H07RN-F, IEC: 60245 IEC 57/CENELEC:
H05RN-F)
ŷ
Power & Communication cable shall not exceed
98.42ft(30m).
CAUTION
ŷ
For the terminal block wiring, use a wire with a
ring terminal socket only. Regular wires without a
ring terminal socket may become a hazard due to
overheating of the electrical contact during installation.
ŷ
If you need to extend the pipe, be sure to extend
the cable too. The maximum length of each of the
cable and pipe used should not exceed 49.2ft(15m)
(
77
09/12
77
)/98.4ft(30m)(
77
18/24
77
).
ŷ
Do not connect two or more different cables to extend
the length. This connection may cause fire.
ŷ
Each circular terminal must match the size of its
corresponding screw in the terminal block.
ŷ
After connecting the cables, make sure that terminal
numbers on the indoor and outdoor units match.
ŷ
Ensure that power and communication cables are
separated, they must not be in the same cable.
WARNING
ŷ
Connect the wires firmly so that wires cannot be pulled
out easily. (If they are loose, it could cause burn-out of
the wires.)
Model
77
09/12/18
77
77
24
77
Power cable
(Outdoor unit)
3G X 1.5 mm²,
H07RN-F
3G X 2.5 mm²,
H07RN-F
Outdoor-to-indoor
power cable
3G X 1.0 mm²,
H07RN-F
3G X 1.0 mm²,
H07RN-F
Communication
cable
2 X 0.75 mm²,
H05RN-F
2 X 0.75 mm²,
H05RN-F
Type GL
20A
25A
Before
connecting
Correct
Upside down
Damaged
Non-circular
After
connecting
Correct
Correct
Upside down
Non-fitted
(Front view)
(Side view)
<Circular terminal>
Control box
Fasten the screws for the wire holders.
Indoor Unit Installation