Recommended Wire Length And Diameter - Sanyo KS1872 Technical & Service Manual

7-2. Recommended Wire Length and Diameter

Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your
local electrical codes. Carefully observe these regulations when carrying out the installation.
Table 2 lists recommended wire lengths and diameters for power supply systems.
NOTE
Refer to the wiring system diagram (Fig. 6) for the meaning of (A), (B) and (C) in Table 2.
Refer to your local codes or in the absence of local codes see the National Electric Code: ANSI/NFPA70.
Table 2
AWG
Model
C1872, C2472, CL1872, CL2472
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 electrical shock, each air
conditioner 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,
security system, or intercom any closer than 3' 4" (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.)
Line Length (ft.)
(#12)
230 (Max.)
WIRING SYSTEM DIAGRAM
INDOOR
UNIT
Terminal
1
2
3
39
(C) Control
Fuse or Circuit
Breaker Capacity
(#14)
65 (Max.) 20A
#...AWG (American Wire Gauge)
OUTDOOR
Disconnect
UNIT
switch
Field supply
Terminal
(B)
230 / 208V
230 / 208V
230 / 208V
(C)
Grounding line
(B)
Fig. 6
1
2
3
4
(A)
5
L1
6 L2
Grounding
line