4
water solutions
First installation manual – Translation of original instructions
For correct installation and safe use of the product, read this manual carefully and keep it safe in a clean, easily accessible place for
future reference.
Misuse of the product may cause even serious injury and damage, cause malfunctions and lead to loss of warranty cover.
1. GENERAL INFORMATION
1.1 Manufacturer’s details
ZENIT Italia s.r.l. - via dell’Industria, 11 - 41018 S.Cesario sul Panaro (MO) – Italy
1.2 Key to the symbols used in the manual
Hazard for operators and pump
Electrical risk
Very hot surfaces with burn hazard
This instructions must be observed for explosion proof pumps
warning
!
Important information to be read with special care
1.3 Safety
The main information for the safety of the product and user is provided in the “Safety Information” leaflet supplied with this manual.
1.4 Training of installation and maintenance staff
The staff assigned to install and maintain the product must be trained in the inevitable residual risks related to electrical equipment operating in
contact with biological liquids.
They must also be capable of reading and understanding the contents of the technical documentation supplied with the product, especially the
electrical wiring diagrams.
1.5 Residual risks
The product is designed and manufactured to ensure safe, reliable use.
However, since it is intended for use with liquids that constitute a health hazard, the installation and maintenance staff must take great care and
always wear regulation personal protection equipment.
During all work on the product, users must take care not to drop the pump and must not underestimate the risks of burns, electrocution, drowning
and suffocation or poisoning due to the inhalation of toxic gases.
To reduce the risks associated with lightning, the user is required to install any necessary and adequate lightning protection
measures.
Any intervention which modifies the pump components can create a DANGER of EXPLOSION.
The pumps MUST be used ONLY in areas compatible with the characteristics recorded on the label.
During handling, installation or disinstallation operations the pump must be disconnected from the power supply panel.
1.6 Product description / Intended use
Grey submersible pumps are classified depending on the hydraulic type.
Grey submersible pumps must under no circumstances be used to pump explosive, flammabile or comustible liquids.
•
DGG Grey series: electric pumps with set-back Vortex impeller which allows ample free passages.
Applications: biological liquids and wastewater civil and industrial lifting, wastewater treatment plants and livestock farms;
•
DRG Grey series: electric pumps with Open Channel impeller.
Applications: recirculation of industrial and process waters, civil lifting, drainage and lifting of water from first rainfall tanks;
•
GRG Grey series: electric pumps with multi-channel open impeller with a grinding system.
Applications: lifting of liquids containing fibres and filaments, professional and industrial applications, livestock farms;
•
APG Grey series: electric pumps with high-head immersed multi-channel open impeller.
Applications: lifting of clean liquids or liquids with small solids or sand, slightly sandy seepage waters.
The explosion proof versions are usable in places with a potentially explosive atmosphere, other than mines susceptible to firedamp (Gas
Group IIB and IIA).
warning
!
The -Ex approval lapses following interventions or repair work carried out by unauthorised workshops or staff.
Accordingly, the electric pump can no longer be used in areas with an explosion danger.
The -Ex plate will have to be removed.
EN
