Sanyo 24KHS72 Service Manual - Page 96

Recommended Wire Length and Diameter

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3-7. 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 5 lists recommended wire lengths and diameters for power supply systems. NOTE Refer to the wiring system diagram (Fig. 23) for the meaning of (A), (B), and (C) in Table 5. Refer to your local codes or in the absence of local codes see the National Electric Code: ANSI/NFPA70. Table 5 AWG Model CH1872, CH2472 (A)+(B) (A) Power Supply Wiring Length (ft) (B) Power Line Length (ft) (#14) (#12) 131 (Max.) 230 (Max.) (C) Control Line Length (ft) Fuse or Circuit (#14) Breaker Capacity 98 (Max.) 20A # ... AWG (American Wire Gauge) Power supply Single phase 230/208V 60HZ WARNING G 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.). G Each wire must be firmly connected. G No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part. WARNING WIRING SYSTEM DIAGRAM INDOOR UNIT Terminal 1 *Disconnect switch Field supply (B) 230/208V OUTDOOR UNIT Terminal 1 2 230/208V 2 3 230/208V 3 (C) Grounding line 4 (A) 5 L1 (B) 6 L2 G To avoid the risk of electric shock, each air conditioner unit must be grounded. G For the installation of a grounding device, please observe local electrical codes. G 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. G Place a dedicated ground more than 7' (2 m) away from other grounds and do not have it shared with other electric appliances. Fig. 23 Grounding line * NOTE Disconnect switch may be required by national or local codes. CAUTION Always comply with national and local code requirements. CAUTION G 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. G 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. 10

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(A)+(B)
(A) Power Supply Wiring Length (ft)
(C) Control
Fuse or Circuit
AWG
(B) Power Line Length (ft)
Line Length (ft)
Model
(#14)
(#12)
(#14)
Breaker Capacity
CH1872, CH2472
131 (Max.)
230 (Max.)
98 (Max.)
20A
10
3-7.
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 5 lists recommended wire lengths and diameters for power supply systems.
Refer to the wiring system diagram (Fig. 23) for the meaning of (A), (B), and (C) in
Table 5.
Refer to your local codes or in the absence of local codes see the National Elec-
tric Code: ANSI/NFPA70.
NOTE
Fig. 23
WIRING SYSTEM DIAGRAM
●
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.
Disconnect
switch
*
1
2
3
1
2
3
4
5
6
Grounding line
230/208V
230/208V
230/208V
INDOOR
UNIT
OUTDOOR
UNIT
Field supply
Grounding
line
L
1
L
2
Power supply
Single phase 230/208V 60HZ
Terminal
Terminal
(A)
(B)
(C)
(B)
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.
●
To avoid the risk of electric 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 elec-
tric appliances.
WARNING
# ... AWG (American Wire Gauge)
Table 5
WARNING
*
Disconnect switch may be required by
national or local codes.
Always comply with national and local code
requirements.
CAUTION
NOTE