Grindex 8120.280 Sandy Inox, Инструкция по установке, эксплуатации и обслуживанию

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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, then the pump must be supplied with
monitoring equipment supporting such operation.
• The thermal contacts or thermistors must be in use.
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.
• 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 a sales or authorized service representative.
• The voltage drop in long cables must be taken into account. The drive unit’s
rated voltage is the voltage measured at the cable connection point in the
pump.
• For SUBCAB
®
cables, the twisted pair copper foil must be trimmed.
• All unused conductors must be insulated.
4.4.2 Grounding (earthing)
Grounding (earthing) must be done in compliance with all local codes and
regulations.
DANGER: Electrical Hazard
All electrical equipment must be grounded (earthed). Test the ground (earth)
lead to verify that it is connected correctly and that the path to ground is
continuous.
4 Installation
8120.280 Sandy Inox Installation, Operation, and Maintenance Manual 15