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use and maintenance booklet - safety instructions
1. USE AND MAINTENANCE INSTRUCTIONS
1.1 Introduction
Before installing and using the pump, read the instructions given below carefully.
There is a self-adhesive label supplied with this manual bearing all the pump data, which must be applied to the manual in the relative space.
This manual must be kept for the entire life of the product, as the manufacturer cannot be held responsible for damage, to people or things,
caused by the submersible electric pump if used in any other ways than those provided for herein, or in the event that the maintenance and
safety regulations are not complied with. In any case, the pump’s installation and use must be effected by qualified adults.
1.2 Safety
Do not allow the electric pump to be used by children or non-qualified persons.
Do not modify the pump for any reason (such as fitting couplings or carrying out drilling or finishing work, etc...).
Do not put your fingers or other objects in the intake and delivery holes.
Be particularly careful when using the GRBLUE model, which is fitted with a shredder blade in the intake area.
Ensure the end of the electric power cable does not come into contact with the fluid.
When carrying out installation, checking or maintenance operations on the electric pump, always use Personal Protective Equipment (PPE),
i.e. regulation garments and equipment.
Accident-prevention shoes and gloves, safety goggles and leather aprons must be always be worn.
Before handling the fitted product, wash it thoroughly with running water.
Only connect the electricity supply once the electric pump has been correctly installed.
Unplug the unit at the mains before carrying out any maintenance and/ or cleaning operations or when simply removing the pump from the
fluid.
Use jets of water and/ or detergent to clean the machine before carrying out any maintenance and/ or cleaning operation.
Do not obstruct the fluid intake and delivery pipes.
In the event of damage, stop the pump immediately.
Contact an authorised Zenit technical service centre for repairs and always request the use of original spare parts.
Failure to comply with the above could result in impaired pump safety, in addition to forfeiture of the warranty.
1.3 Conditions of use
Heavy-duty electric pumps suitable for use with a limited number of start-ups per hour, not suitable for fluids for alimentary use.
The DR
blue,
DR
blue
PRO, DG
blue
PRO, DG
blue,
GR
blue
PRO, AP
blue
PRO model electric pumps are designed to treat fluids such as clear
water, dirty water or sewage.
The electric pump normally works completely immersed in the fluid in order to prime itself and to pump out. The pump must be immersed
completely in the fluid so that the latter can cool the motor sufficiently.
This way the inlet will not take in air and the pump will operate correctly.
In the DR
blue -
DR
blue
PRO versions the grating can be removed to enable fluid intake from up to the last few millimetres from the bottom.
The DR
blue
PRO and AP
blue
PRO models are designed for the evacuation of clear water or dirty water containing small solid bodies.
The DG
blue -
DG
blue
PRO model guarantees a clear passage for solids of up to 50 mm and is suitable for the treatment of dirty water.
The GR
blue
PRO model can be used for sewage containing fibres which can be shredded using an intake shredding system.
Number of start-ups per hour: some start-ups per hour are allowed;
Immersion depth: maximum of 7m beneath the fluid level;
Temperature of fluid treated: maximum of 40°C;
Density of fluid treated: maximum of 1.1 Kg/ dm³;
PH of fluid to be pumped: between 6 and 14;
If the electric pump is used in swimming pools and suchlike, people must not bath in or come into contact with the treated fluid until the pump
has been removed from the pool.
Users must follow the safety rules in force in the country of use, as well as applying their common sense, and make sure the routine cleaning
and maintenance operations are carried out correctly.
It is the installer’s duty to check the correct environmental conditions for use of the pump, ensuring they guarantee safety and hygiene. The
responsibilities of the staff authorised to use the electric pump are delegated to the customer.
1.4 Noise level
The submersible electric pumps feature an acoustic pressure level of below 70dB(A) when immersed and below 80dB(A) in the air.
1.5 Handling
The electric pumps of 30 kg or less can be handled and lifted manually using the special handle located in the upper section of the pump.
Do not use the electric power cable to lift or move the pump.
Check that the box and its contents are in perfect condition and stop the installation in the event that any defects or anomalies are found,
then inform the supplier.
1.6 Storage
During storage, the electric pump must be kept in a suitable place, out of the reach of children or those with diminished responsibility, suitably
secured against falling and protected from damp, dust, vibrations and extreme temperatures (below -5°C and above +40°C).
WARNING:
Turn the impeller by hand occasionally (at least every month) through the outlet or intake, to prevent the mechanical seals from
sticking together.
Following storage, inspect the electric pump to make sure there is no damage, check the oil level in the mechanical seals chamber and make
sure the impeller spins freely.
If the electric pump needs to be stored for more than six months, prior to commissioning it, change the oil in the mechanical seals chamber
and take it to an authorised disposal centre.
Do not dispose of the oil as household waste.
1.7 Installation
If the pump is installed in a shaft, this must have the following minimum dimensions: 350mm x 350mm x 350mm.
However, the manufacturer recommends the use of shafts which are no smaller than 500mm x 500mm x 500mm.
better together
