FLYGT Flygt 3069, Инструкция по установке, эксплуатации и обслуживанию

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WARNING: Electrical Hazard
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. Visually inspect equipment for
damaged cables, cracked casings or other signs of damage. Make sure that electrical
connections have been correctly made.
WARNING: Crush Hazard
Risk of automatic restart.
CAUTION: Electrical Hazard
Prevent cables from becoming sharply bent or damaged.
NOTICE:
Leakage into the electrical parts can cause damaged equipment or a blown fuse. Keep
the cable ends dry at all times.
Requirements
These general requirements apply for the electrical installation:
• If the pump will be connected to the public mains, then the supply authority must be
notified before installing the pump. When the pump is connected to the public power
supply, it can 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, then follow the specified voltage
on the yellow sticker close to the cable entry.
• If the operation can be intermittent, such as S3 periodic duty, then the pump must be
supplied with monitoring equipment supporting such operation.
• If stated on the data plate, then the motor is convertible between different voltages.
• The thermal contacts or thermistors must be in use.
• If the temperature of the pumped liquid is above 40°C (104°F), then do not connect
the T1 and T2 leads to thermal contacts.
• For FM-approved pumps, a leakage sensor must be connected and in use to meet
approval requirements.
Motor and short-circuit protection
A qualified electrician must select the size of motor protection breakers and fuses, so that
it is sufficient for the specific motor data such as rated current and starting current.
It is important that the short-circuit protection is not over-dimensioned. Over-
dimensioned fuses and motor protection breakers decrease the protection for the motor.
• The fuse rating and the cables must be in accordance with the local rules and
regulations.
• The fuses and circuit breakers must have the correct rating. The pump overload
protection must be connected and set to the rated current. See the data plate and if
applicable the cable chart for the rated current. The starting current in direct-on-line
start can be up to six times higher than the rated current.
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 cables must not be damaged and must not have indentations or be embossed
(with markings, etc.) at the cable entry.
4 Installation
Flygt 3069 Installation, Operation, and Maintenance Manual 21