Xylem Lowara ESH ATEX Manual De Instalación, Funcionamiento Y Mantenimiento página 23

3.2 Pump denomination
See Figure 3 and Figure 4 for an explanation
and location of the ATEX adhesive label.
3.3 Nameplate
The nameplate is located on the bearing
bracket. The name plate lists key product
specifications. For more information, see Figure
1.
The nameplate provides information regarding
the impeller and casing material, the
mechanical seal and their materials. For more
information, see Figure 5.
3.4 Pump description

Connection dimensions according EN 733
(mod- els 32-125...-200; 40-125...-250;
50-125...-250; 65-160...-250; 80-160...-
250).

Volute casing pump with back pull out
bearing bracket.
3.5 Material
The metallic parts of the pump that come in
contact with liquid are made of the following:
Material
Material
code casing /
impeller
Stainless
steel /
SS
Stainless
steel
Stainless
steel /
SN
Stainless
steel
3.6 Mechanical seal
Unbalanced single mechanical seal acc. EN
12756, version K.
3.7 Application limits
Maximum working pressure
Figure 6 shows the maximum working pressure
depending on the pump model and the
temperature of the pumped liquid.
P1max + Pmax≤ PN
P1max Maximum inlet pressure
Pmax Maximum pressure generated by the
pump
PN Maximum operating pressure
Liquid temperature intervals
For the working temperature range, see Figure
6.
NOTICE:
For T4 operation the maximum temperature of
the pumped fluid must not exceed +90°C
(+194°F).
See Installing and Operating Instructions
Standard/
Optional
Standard
Standard
manual of the motor.
Contact Xylem or the Authorised Distributor for
special applications.
Maximum number of starts per hour
See Installing and Operating Instructions
manual of the motor.
Noise level
For the sound pressure levels of pump
equipped with standard supplied motor, see
Installing and Operating Instructions manual of
the motor.
For sound pressure levels of pump without
motor, see Table 11.
4 Installation
Precautions
WARNING:
 Observe accident prevention
regulations in force.
 Use suitable equipment and
protection.
 Always refer to the local and/or
national regulations, legislation,
and codes in force regarding the
selection of the installation site,
plumbing, and power connections.
Electrical Hazard:
 Make sure that all connections are
performed by qualified installation
technicians and in compliance with
the regulations in force.
 Before starting work on the unit,
make sure that the unit and the
control panel are isolated from the
power supply and cannot be
energized. This applies to the
control circuit as well.
Grounding (earthing)
Electrical Hazard:
 The equipment must be suitably
earthed prior to operation.
 Always connect the external
protection conductor to ground
(earth) terminal before making
other electrical connections.
 You must ground (earth) all
electrical equipment. This applies
to the pump equipment, the driver,
and any monitoring equipment.
Test the ground (earth) lead to
verify that it is connected correctly.
 If the pump body and/or the motor
adapter are painted, then you
must ground (earth) the pump
body and/or the motor adapter.
 If the motor cable is jerked loose
by mistake, the ground (earth)
conductor should be the last
conductor to come loose from its
terminal. Make sure that the
en - Original instructions
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