Panasonic CS-KE12NB41 Technical & Service Manual page 103

Table 4
Cross-Sectional
Area (AWG)
Model
CU-KE12NK1
CU-KE18NKU
WARNING
Be sure to comply with local codes on running the
wire from the indoor unit to the outdoor unit (size
of wire and wiring method, etc.).
Each wire must be firmly connected.
No wire should be allowed to touch refrigerant
tubing, the compressor, or any moving part.
WARNING
To avoid the risk of electric shock, each air con-
ditioner unit must be grounded.
For the installation of a grounding device,
please observe local electrical codes.
Grounding is necessary, especially for units
using inverter circuits, in order to release
charged electricity and electrical noise caused
by high tension.
Otherwise, electrical shock may occur.
Place a dedicated ground more than 7' (2 m)
away from other grounds and do not have it
shared with other electric appliances.
CAUTION
Be sure to connect the power supply line to the
outdoor unit as shown in the wiring diagram. The
indoor unit draws its power from the outdoor unit.
Do not run wiring for antenna, signal, or power
lines of television, radio, stereo, telephone, secu-
rity system, or intercom any closer than 3'3" (1 m)
from the power cable and wires between the
indoor and outdoor units. Electrical noise may
affect the operation.
(A)+(B) (A) Power Supply Wiring Length (ft)
(B) Power Line Length (ft)
(#14)
131 (Max.)
131 (Max.)
(C) Control
Line Length (ft)
(#12) (#14)
230 (Max.) 65 (Max.)
230 (Max.) 100 (Max.)
# ... AWG (American Wire Gauge)
WIRING SYSTEM DIAGRAM
INDOOR
* Disconnect
UNIT
switch
Field supply
Terminal
1
2
3
(C)
INDOOR
* Disconnect
UNIT
switch
Field supply
Terminal
1
2
3
(C)
NOTE
*
A disconnect switch may be required by
national or local codes.
CAUTION
Always comply with national and local code
requirements.
13
Fuse or Circuit
Breaker Capacity
20A
15A
(CU-KE12NK1)
OUTDOOR
UNIT
Terminal
(B)
115V
1
115V
2
115V
3
4
5
Grounding line
6
(B)
Fig. 7a
(CU-KE18NKU)
OUTDOOR
UNIT
Terminal
(B)
230/208V
1
230/208V
2
230/208V
3
4
5
Grounding line
6
(B)
Fig. 7b
(A)
L
N
Grounding
line
(A)
L
1
L
2
Grounding
line