10
6. Electrical work
6.1. Indoor unit
PKFY-P·NKMU-E (Fig. 6-1)
Connection can be made without removing the front panel.
1. Open the front grille, remove the screw (1 piece), and remove the electrical
parts cover.
2. Securely connect each wire to the terminal board.
* 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. Fasten each of the wires with the clamp under the electrical parts box.
A
Elactrical box cover
B
Fixing screw
D
MA remote control terminal board: (1, 2) do not have polarity
E
Transmission terminal board: (M1, M2, S) do not have polarity
F
Power supply terminal board: (L1, L2, GR).
G
Lead
H
Ground wire connection portion: Connect the ground wire in the direction illustrated in the
diagram.
J
MA remote control cable
K
Transmission cable
L
Power supply cable
M
Conduit plate
N
Bush (purchased locally)
O
Lock nut (purchased locally)
P
Connector (purchased locally)
Q
Conduit (purchased locally)
6.. Power supply wiring
• Power supply codes of appliance shall not be lighter than design 245 IEC 53 or
227 IEC 53.
• Install an earth line longer than other cables.
• A switch with at least 3 mm, 1/8 inch contact separation in each pole shall be
provided by the air conditioner installation.
Power cable size : more than 1.5mm
2
(AWG16)
[Fig. 6-]
A
Switch 16 A
B
Overcurrent protection 16 A
C
Indoor unit
D
Total operating current be less than 16 A
E
Pull box
►
Selecting non-fuse breaker (NF) or earth leakage breaker (NV).
For breaker, means shall be provided to ensure disconnection of all active
phase conductors of the supply.
6.. Types of control cables
1. Wiring transmission cables
Types of transmission cable
Shielding wire CVVS or CPEVS
Cable diameter
More than 1.25 mm
2
(AWG16)
Length
Less than 200m, 219 yard
. M-NET Remote control cables
Types of remote control cable Shielding wire MVVS
Cable diameter
More than 0.5 (AWG20) to 1.25 mm
2
(AWG16)
Length
Add any portion in excess of 10m, 33 ft to
within the longest allowable transmission cable
length 200m, 219 yard.
. MA Remote control cables
Types of remote control cable
2-core cable (unshielded)
Cable diameter
0.3 (AWG22) to 1.25 mm
2
(AWG16)
Length
Less than 200m, 219 yard
PKFY-P·NKMU-E
J
G
L
K
F
E
D
A
B
15/32 inch
2-11/64 inch
J K L
Fig. 6-1
A
B
E
C
TB2
TB5
TB15
S
1 2
M1
L1 L2 GR
M2
L1
L2 GR
L
H
Q
P
M
N O
Fig. 6-
