Mitsubishi Electric PUZ-A18NHA6 Service Manual page 22

8-3. INDOOR - OUTDOOR CONNECTING CABLE
Outdoor power supply
Indoor unit-Outdoor unit
Note: The maximum cable length may vary depending on the condition of installation, humidity or materials, etc.
Indoor/Outdoor separate
power supply
Indoor unit-Outdoor unit
Note: The optional indoor power supply terminal kit is necessary.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufficient
insulation to ground or a poor electrical contact at the intermediate connection point.
Max. 147 ft [45 m]
Max. 164 ft [50 m]
3 o AWG16(polar) 3 o AWG13(polar)
22
Wire No. o Size
Max. 262 ft [80 m]
3 o AWG13(polar) and S3 separated
Wire No. o Size
Max. 393 ft [120 m]
2 o Min. AWG22