Check The Rotation Direction (Threephase Motor); Start The Pump; Disassemble And Replace The Pump Parts - Xylem LOWARA ESHS ATEX Manual De Instalación, Uso Y Manutención

en – Original instructions
2. Filled discharge pipe system:
a) Open the on-off valve located upstream
from the pump and open the on-off valve
downstream.
b) Remove the fill plug (2) until water flows out
of this hole.
c) Tighten the fill plug (2).
5.2 Check the rotation direction
(threephase motor)
Follow this procedure before start-up.
1. Locate the arrows on the adaptor or the motor
fan cover to determine the correct rotation
direction.
2. Start the motor.
3. Quickly check the direction of rotation through
the coupling guard or through the motor fan
cover.
4. Stop the motor.
5. If the rotation direction is incorrect, then do as
follows:
a) Disconnect the power supply.
b) In the terminal board of the motor or in the
electric control
position of two of the three wires of the
supply cable.
c) Check the direction of rotation again.

5.3 Start the pump

The responsibility for checking the correct flow and
the temperature of the pumped liquid rests with the
installer or owner.
Before the pump is started, make sure that:
•
Only liquids with conductivity >1000 pS/m
(Refer to PD CLC/TR 60079–32–1) are
used.
•
The maximum liquid temperature (t
stated on the pump nameplate must never
be exceeded.
•
The combination of the pump and the dry-
running protection is described in the
Explosion Protection Document according to
the 1999/92/EC Directive.
•
The pump does not leak before start and
during operation.
•
The pump has been primed.
•
The pump is correctly connected to the
power supply.
•
The pump is correctly filled according to
instructions in Fill the pump on page 11.
•
The on-off valve located downstream from
the pump is closed.
1. Start the motor.
2. Gradually open the on-off valve on the
discharge side of the pump.
At the expected operating conditions, the pump must
run smoothly and quietly.
Troubleshooting on page 25.
24
panel, exchange the
)
max
If not, refer to
6 Maintenance
Precautions
Electrical hazard:
Disconnect and lock out electrical power
before installing or servicing the unit.
WARNING:
•
Maintenance and service must
be performed by skilled and qualified personnel only.
•
Observe the accident prevention
regulations in force.
•
Use suitable
protective material.
•
Make sure that the drained liquid
cannot
persons,
environment.
6.1 Service
If the user wishes to schedule regular maintenance
deadlines, they are dependent on the type of
pumped liquid and on the operating conditions of the
pump.
Contact Xylem or the Authorised Distributor for any
requests or information
maintenance or service.
Extraordinary maintenance may be necessary to
clean the liquid end and/or replace worn parts.
Scheduled maintenance
The pump-motor assembly supplied by Xylem is
suitable for at least 17500 hours of maintenance-free
operation. After this interval, check the hydraulic
seals and the condition of the motor bearings.
For further information, refer to the motor's use and
maintenance manual.
6.2 Inspection checklist
Check for leakage of the mechanical seal. Replace
the mechanical seal if leakage is found.
6.3 Disassemble and replace the pump
parts
For more information about spare parts and
assembly and disassembly of the pump, contact
Xylem or the Authorised Distributor.
Repair and/or maintenance of the pump must only
be carried out by Xylem or the Authorised
Distributor.
equipment and
cause damage to
property or the
regarding routine