EBARA GP 1 Traducción De Instrucciones Originales página 28

pump to take care of small pressure losses from the
system, therefore preventing the start of the main pumps
(which are generally larger with a greater consumption
than the pilot pump);
 GPS/GPES: sets that can operate with fixed (GPS) or
variable (GPES) speed pumps. These sets can have
dimensioned conductors to have a system pump that is
inactive (in stand-by).
Similar to these are the configured pressure booster sets with
2/3/4 pumps that have the same control system and pumps as
the standard ones mentioned above.
The control systems for the sets are divided based on if there
is an inverter or not, i.e. a frequency variator that makes it
possible to vary the pump speed, and on the type of inverter.
They are:
 EP control panel: for the actuation of the single-phase or
three-phase pumps at a fixed speed, controlled by
pressure switches;
 EP-E control panel: for the actuation of the single-phase
or three-phase pumps at a fixed speed controlled by a
transducer (one transducer for the entire set);
 SP-EFC control panel: for the actuation of the three-
phase pump with the first pump at a variable speed, and
the others, cascading, at a fixed speed;
 SP-MFC control panel: for the actuation of the three-
phase pump at a variable speed;
 VASCO inverter: installed on the motor for the actuation
of the three-phase pump at a variable speed;
 E-SPD+ inverter: installed on the motor for the actuation
of the three-phase pump at a variable speed.
For details concerning the operation of each panel/device, see
the dedicated supplementary manual.
Note: sets with an VASCO and E-SPD+ control device have a
MASTER pump (the first pump to the left when viewing the set
from the panel side), whose inverter controls the activation
sequence of all pumps.
The sets can be equipped with the following types of pump:
AGA/CDX/2CDX/2CD/CDA/CMA/CMB/COMPACT/CVM/EVM/
EVML/EVMG/EVMS/EVMSL/EVMSG/GS/JE/JEX/MATRIX/MD
/MMD/MULTIGO/3M/3LM/3S/3LS/3D/3DS/3P/3LP/3DP.
5.2. COMPONENTS
The pressure booster sets are shown in the diagrams in fig. A
in the ATTACHED DIAGRAMS chapter.
The code identifying the models is described in the MODEL
IDENTIFICATION CODE chapter.
5.3. INTENDED USE
The sets are intended for civil, industrial and agricultural
applications in particular for:
 lifting or pumping water;
 cooling;
 heating;
 irrigation;
 washing systems.
The treated liquid must be:
 potable, clean water, rainwater or groundwater, or a
mixture;
 free of solid or fibre bodies in suspension;
 free of aggressive chemical substances;
 at a temperature compatible with that indicated in the
pump documentation and in any case within the range 0 -
50°C with the use of pressure switches (EP, SP-EFC, SP-
MFC control system) or in the range 0 - 80°C with the use
of transducers (EP-E, VASCO, E-SPD+ control system).
The installation environment must:
 be covered and protected against the adverse weather
conditions and frost;
 have an ambient operating temperature between 0 and
40°C;
 be at a maximum altitude of 1000 m above sea level;
 have a max. relative humidity of 50% at +40°C.
NB: The sets are designed to operate with a positive head.
Installation of set with a negative head, isn't recommended.
Given the set's inlet pressure and the maximum pump head,
make sure not to exceed the maximum outlet pressure
permitted for the relative pump.
5.4. UNINTENDED USE
Improper product use could cause hazardous
conditions as well as personal injury and/or
property damage.
Unintended product use can invalidate the
ATTENTION
warranty.
The sets cannot be used for:
 handling of liquids with temperatures not compatible with
what is indicated in the pump documentation and in any
case outside the range 0 - 50°C with the use of pressure
switches (EP, SP-EFC, SP-MFC control system) or range
0 - 80°C with the use of transducers (EP-E, VASCO, E-
SPD+ control system);
 pumping dirty water;
 pumping water with solid particles in suspension;
 pumping corrosive liquids or liquids with acid substances;
 pumping seawater;
 pumping inflammable/explosive liquids;
 installation outside without protection against atmospheric
agents or frost;
 operating without liquid;
 operating in ATEX environments.
For special applications that are not included in the Intended
use chapter, contact our technical office.
6. TECHNICAL DATA
The manufacturer reserves the right to make
changes to the technical data to make
ATTENTION
improvements
notice.
6.1. SET DATA PLATE
For the data plate, see the DATA PLATE chapter.
6.2. COMPONENT TECHNICAL DATA
For the technical data for the single components (electric
pumps, control panels or control devices and protection panel)
see the relative attached documents.
6.3. INFORMATION ABOUT AIRBORNE NOISE
The noise levels of the pressure booster set are obtained
starting from the sound levels emitted by the single main
electric pump, which can be found in its operating and
ENGLISH
and updates, without prior
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