Mitsubishi Electric PKA-ALA Serie Manuel D'installation page 10

6. Electrical work
A
JKL
M
I
S
en
<When wiring two indoor-outdoor connection cables>
• If the cables have the same diameter,
insert them into the cut outs on both
sides.
• If the cables have different diameters,
insert them on one side into separate
spaces with one cable positioned above
the other.
9
B
C
FGH
E
D
F
N
H
O
G
KJ
J
K
L
55 mm, 2-11/64 inch
12 mm, 15/32 inch
R
P
J
L K
Fig. 6-1
Cut outs
Fig. 6-2
6.1. Electric wiring
[Fig. 6-1]
Connection can be made without removing the front panel.
1. Open the front grille, remove the screw (2 pieces), and remove the electrical box
cover.
* Electrical work can be conducted more effectively with the panel removed.
When attaching the panel, check that the hooks K at three locations on the air
outlet side are connected securely.
2. Securely connect each wire to the terminal block.
* In consideration of servicing, provide extra length for each of the wires.
* Take care when using strand wires, because beards may cause the wiring to
short out.
3. Install the parts that were removed back to their original condition.
4. When going through the right side of the indoor unit, cut out the removable
section of the Corner box E.
Front grille
A
Fixing screw
B
Electrical box cover
C
Fixing screw
D
Corner box
E
Conduit plate
F
Conduit cover
G
Fixing screw
H
Fixing screw
I
Remote control cable
J
Indoor-outdoor connection cable
K
Ground wire
L
Lock nut
M
Conduit joint
N
Conduit pipe
O
Ground wire connection portion
P
MA remote control terminal block: (1, 2) do not have polarity
Q
Terminal block for indoor and outdoor units connection: S1, S2 and S3, have polarity
R
Hook
S
Caution:
Wiring for remote controller cable shall be apart (5 cm, 1-31/32 inch or more)
from power source wiring so that it is not influenced by electric noise from
power source wiring.
When going through the right side
Q
WARNING
When using a single cable, a round crimped terminal or other
terminal work is prohibited.
• Connecting two wires on one side is
prohibited.
• Connecting three wires or more to the
same terminal is prohibited.
• Connecting wires with different diameters
is prohibited.
Fig. 6-3
E