5. Wiring Instructions
5-1. General Precautions on Wiring
(1)Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram.
(2)Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit break- er for overcurrent protection provided in the exclusive line.
(3)To prevent possible hazard due to insulation failure, the unit must be grounded.
(4)Each wiring connection must be done tightly and in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged.
(5)Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan.
(6)Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes.
5-2. Recommended Wire Length and Diameter
Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local elec- trical codes. Carefully observe these regulations when car- rying out the installation.
Table 6 shows maximum wire lengths for control line and power line and fuse or circuit capacity.
NOTE
Refer to the wiring system diagram (Fig. 25a or 25b) for the meaning of (A), (B), and (C) in Table 6.
Refer to your local codes or in the absence of local codes see the National Electric Code: ANSI/NFPA70.
Table 6
| AWG | Max. Power Line Length (ft.) | Max. Control Line Length (ft.) | Fuse |
| (A) | (B) (C) | or | |
Model |
| |||
| (#12) | (#14) | Circuit Capacity | |
|
|
| ||
| 85 (Max.) | 82 (Max.) | 15 A | |
| 85 (Max.) | 82 (Max.) | 20 A | |
| 85 (Max.) | 100 (Max.) | 20 A |
# ... AWG (American Wire Gauge)
22
