Wiring
CAUTION
After confirmation of the above conditions, follow these guidelines when performing wiring:
•
•
•
Always have an individual power circuit specifically for the air conditioner. Always follow
the circuit diagram posted on the inside of the control cover.
Screws fastening the wiring in the casing of electrical fittings may come loose during
transporation. Because loose screws may cause wire burn-ou, check that the screws are
tightly fastened.
Check the specifications for the power source.
• Confirm that electrical capacity is sufficient.
•
Confirm that starting voltage is maintained at more than 90 percent of the rated voltage
marked on the name plate.
•
Confirm that the cable thickness is as specified in the power source specifications.
• Always install an earth leakage circuit breaker in wet or moist areas.
•
The following can be caused by a drop in voltage: vibration of a magnetic switch,
damaging the contact point, broken fuses, and disturbance of normal functioning.
•
Disconnection from a power supply must be incorporated into the fixed wiring. It must
have an air gap contact separation of at least 3mm in each active (phase) conductors.
• Before accessing terminals, all supply circuits must be disconnected.
*
Main power cable from electrical panel to outdoor unit Notes:
1. Main power is supplied to outdoor unit only
2. System must be installed on a dedicated circuit
3. Follow all local building codes and NEC regulations
4. Use the above table to size your circuit breaker
Voltage
Minimum Circuit
Amps (MCA)
Max Overcurrent
Protection (MOP)
Main
Main Power W
Size (AWG)
*
SENA/18HF/MOZ
SENA/30HF/MOZ
SENA/36HF/MOZ
SENA/48HF/MOZ
Model
Number
208/230V - 1ph 60Hz
208/230V - 1ph 60Hz
208/230V - 1ph 60Hz
208/230V - 1ph 60Hz
18
25
30
35
30
30
4
0
50
10
10
8
8