Installation
General precautions
Electrical Hazard:
• A certified electrician must supervise all electrical work. Comply with all local codes and regulations.
• Before starting work on the pump, make sure that the pump and the control panel are isolated from
the power supply and cannot be energized. This applies to the control circuit as well.
• Leakage into the electrical parts can cause damaged equipment or a blown fuse. Keep the end of the
motor cable above the liquid level.
• Make sure that all unused conductors are insulated.
• There is a risk of electrical shock or explosion if the electrical connections are not correctly carried
out or if there is fault or damage on the product.
CAUTION:
If the pump is equipped with automatic level control and/or internal contactor, there is a risk of sudden
restart.
Requirements
These general requirements apply for electrical installation:
• The supply authority must be notified before installing the pump if it will be connected to the public
mains. When the pump is connected to the public power supply, it may cause flickering of
incandescent lamps when started.
• The mains voltage and frequency must agree with the specifications on the data plate. If the pump can
be connected to different voltages, the connected voltage is specified by a yellow sticker close to the
cable entry.
• The fuses, short-circuit, and circuit breakers must have the proper rating, and the pump overload
protection (motor protection breaker) must be connected and set to the rated current according to the
data plate and if applicable the cable chart. The starting current in direct-on-line starting can be up to
six times higher than the rated current.
• The fuse rating and the cables must be in accordance with the local rules and regulations.
• If intermittent operation is prescribed, the pump must be provided with monitoring equipment
supporting such operation.
• The motor is convertible between different voltages, as stated on the data plate. This conversion is
done on the terminal board.
Cables
These are the requirements to follow when you install cables:
• The cables must be in good condition, not have any sharp bends, and not be pinched.
• The sheathing must not be damaged and must not have indentations or be embossed (with markings,
etc.) at the cable entry.
• The cable entry seal sleeve and washers must conform to the outside diameter of the cable.
• The minimum bending radius must not be below the accepted value.
• If using a cable which has been used before, a short piece must be peeled off when refitting it so that
the cable entry seal sleeve does not close around the cable at the same point again. If the outer sheath
of the cable is damaged, then replace the cable. Contact an ITT service shop.
Installation
12
Flygt 3102 Service and Repair Instructions
Содержание Flygt 3102
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