44
Single Zone
Art Cool Premier W
all Mounted Installation Manual
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ELECTRICAL WIRING
General Information and Safety Guidelines
• All power wiring and communication cable installation must be per-
formed by trained 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.
Electric shock can cause physical injury or death.
• Undersized wiring may lead to unacceptable voltage at the unit and
may cause a fire hazard. Fire can cause physical injury or death.
• Properly ground the outdoor and indoor units. Ground wiring must
always be installed by a trained technician. Ground wiring is required to
prevent accidental electrical shock during current leakage. Incorrect
grounding can cause electric shock, physical injury, or death.
• Do not connect ground wire to refrigerant, gas, or water pip-
ing; 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 in-
jury, or death.
• Verify that the branch switch and circuit breaker are set to OFF be-
fore installing the wiring system. Electric shock can cause physical
injury or death.
• 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 wir-
ing, and following the instructions in this manual. Using an oversized
breaker or fuse may 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 and indoor unit. Improperly grounded
wire can cause communication problems from electrical noise, and
motor current leakage. Ground wiring must always be installed by a
trained technician.
• If the system operates in reversed phase, it may damage the com-
pressor and other components.
• If there is a possibility of reversed phase, phase loss, momen-
tary blackout, or the power goes on and off while the system is
operating, install a field-supplied phase loss protection circuit.
• Do not connect ground wire to refrigerant, gas, or water pip-
ing; 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 malfunction.
• 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 wir-
ing, and following the instructions in this manual. Using an oversized
breaker or fuse may result in equipment malfunction and property
damage.
• Use only copper wiring that is stranded and shielded with the wires
separately insulated.
• Do not use a multi-conductor cable with more than five (5) wires
in one (1) core.
• Power wiring and communications cable sizes must comply with ap-
plicable federal UL/ETL, state, and local codes.
• Do not operate the air conditioning system until the refrigerant
piping installation is complete. Operating the system before refriger-
ant piping is finalized may damage the compressor.
• Install a main shutoff switch or circuit breaker that interrupts all pow-
er sources simultaneously (circuit breaker should be resistant to
electromagnetic currents).
• Use ring or spade terminals to attach the wiring. Verify that all power
wiring and communications cable terminals are securely attached.
Ensure enough slack is included in the wiring and cables to avoid
damaging the connections.
• Use a conduit to protect the power wiring.
• Undersized wiring may lead to unacceptable voltage at the unit and
may cause unit malfunction.