Fujitsu AB*G18LVTB Series, Дизайн и техническое руководство

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WIRING DESIGN 3.
ELECTRICAL WIRING 3-1.
PRECAUTION FOR ELECTRICAL WIRING
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Regulation on wire diameter and selecting circuit braker size differ from locality.
Install in accordance with local rules and regulations.
WARNING
Wiring connections must be performed by a qualified person in accordance with the •
specifications. The voltage rating for this product is 400 V at 50 Hz. It should be operated within
the range of 342 to 456 V.
Before connecting the wires, make sure the power supply is OFF.
•
Never touch electrical components immediately after the power supply has been turned off. •
Electrical shock may occur. After turning off the power, always wait 10 minutes or more before
touching electrical components.
Use a dedicated power supply circuit. Insufficient power capacity in the electrical circuit or •
improper wiring may cause electric shock or fire.
Install a breaker at the power supply for each outdoor unit. Improper breaker selection can •
cause electric shock or fire.
Install a leakage circuit breaker in accordance with the related laws and regulations. An •
improperly installed electrical box cover can cause serious accidents such as electric shock or
fire through exposure to dust or water.
A circuit breaker is installed in the permanent wiring. Always use a circuit that can trip all the •
poles of the wiring and has an isolation distance of at least 3 mm between the contacts of each
pole.
Use designated cables and power cables. Improper use may cause electric shock or fire by •
poor connection, insufficient insulation, or over current.
Do not modify power cable, use extension cable or branch wiring. Improper use may cause •
electric shock or fire by poor connection, insufficient insulation or over current.
Connect the connector cable securely to the terminal. Check no mechanical force bears on the •
cables connected to the terminals. Faulty installation can cause a fire.
Use crimp-type terminals and tighten the terminal screws to the specified torques, otherwise,
•
abnormal overheating may be produced and possibly cause serious damage inside the unit.
Make sure to secure the insulation portion of the connector cable with the cable clamp.
•
Damaged insulation can cause a short circuit.
Fix cables so that cables do not make contact with the pipes (especially on high pressure side).
•
Do not make power supply cable and transmission cable come in contact with valves (Gas).
Never install a power factor improvement condenser. Instead of improving the power factor, the •
condenser may overheat.
Be sure to perform the grounding work.
•
Do not connect grounding wires to a gas pipe, water pipe, lightning rod or grounding wire for a
telephone.
Connection to a gas pipe may cause a fire or explosion if gas leaks. •
Connection to a water pipe is not an effective grounding method if PVC pipe is used. •
Connection to the grounding wire of a telephone or to a lightning rod may cause a dangerously •
abnormal rise in the electrical potential if lightning strikes.
Improper grounding work can cause electric shocks. •
Securely install the electrical box cover on the unit. An improperly installed service panel can •
cause serious accidents such as electric shock or fire through exposure to dust or water.