47
W
iring
Due to our policy of continuous product innovation, some specifications may change without notification.
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• All power wiring and communication cable installation must be performed by authorized service providers working in accordance with local,
state, and National Electrical Code regulations related to electrical equipment and wiring, and following the instructions in this manual. Failure
to do so may lead to electric shock and bodily injury or death.
• Be sure that main power to the unit is completely off before proceeding. Follow all safety and warning information outlined at the beginning of
this manual. Failure to do so may cause electric shock and bodily injury.
• Familiarize yourself with the location of the circuit breaker. Be sure that a circuit breaker or some other emergency power cutoff device is in
place before any power wiring is done to the system. Failure to do so may cause bodily injury or death.
•
Never touch any power lines or live cables before all power is cutoff to the system. To do so, may cause bodily injury or death.
• Undersized wiring may lead to unacceptable voltage at the unit and may cause unit malfunction and be a fire hazard.
•
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•
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• Install appropriately sized breakers / fuses / overcurrent protection switches and wiring in accordance with local, state, and National Electrical
Code regulations related to electrical equipment and wiring, and following the instructions in this manual. Using an oversized breaker or fuse
may result in electric shock, physical injury or death.
•
Do not connect ground wire to refrigerant, gas, or water piping; to lightning rods; to telephone ground wiring; or to the building plumbing
system. Failure to properly provide a National Electrical Code-approved earth ground can result in electric shock, physical injury or death.
• Consider ambient conditions (temperature, direct sunlight, inclement weather, etc.) when selecting, installing, and connecting the power
wiring.
• Properly ground the outdoor units. Improperly ground wire can cause communication problems from electrical noise, and motor current leak-
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• If the system operates in reversed phase, it may damage the compressors and other components.
• If there is a possibility of reversed phase, phase loss, momentary blackout, or the power goes on and off while the system is
operating, install a field-supplied phase loss protection circuit.
• Install appropriately sized breakers / fuses / overcurrent protection switches and wiring in accordance with local, state, and National Electrical
Code regulations related to electrical equipment and wiring, and following the instructions in this manual. Using an oversized breaker or fuse
may result in equipment malfunction and property damage.
•
Do not connect ground wire to refrigerant, gas, or water piping; to lightning rods; to telephone ground wiring; or to the building plumbing
system. Failure to properly provide a National Electrical Code-approved earth ground can result in property damage and equipment malfunc-
tion.
• If there is a possibility of reversed phase, phase loss, momentary blackout, or the power goes on and off while the system is operating, install a
field-supplied phase loss protection circuit. If the system operates in reversed phase, it may damage the compressors and other components.
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1,2
100V or more
10A
12 inches
50A
20 inches
100A
40 inches
Exceed 100A
60 inches
1
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direct proportion to the additional line lengths involved.
2
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increased.
• Position the power wiring a minimum of two (2) inch-
es away from the communication cables to avoid
operation problems caused by electrical interfer-
ence.
Do not run both in the same conduit.
• If it is necessary to run the power wiring and
communication cable alongside each other and
cannot be avoided, see the table below for minimum
recommended distances.
Table 30:
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Allowable Distances.
•
Do not secure the power wiring and communication cables together.
•
Do not run the power wiring and the communication cable in the same conduit.
Separating Power Wires and Communication Cables
WIRING
General Wiring Guidelines
