16
7-4. 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 shows maximum wire lengths for control line and power line and fuse or circuit capacity.
Refer to the wiring system diagram (Fig. 6) for the meaning of “A” and “B” in Table 2.
Table 2
Cross-sectional Max. Control Line Length Max. Power Line Length Fuse
Area (mm
2
) (A) (B) or
Model 1.0 2.0 2.6 3.5
Circuit Capacity
AE4MI91AH 34 m 15 m 20 m 26 m 30 A
●
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.
●
Be sure to connect power wires correctly
matching up numbers on terminals of the
outdoor unit and respective indoor units A – D.
To avoid the risk of electric
shock, each air conditioner
unit must be grounded.