Xylem e-HM - Manual (Page 12)

Electrical Hazard:
Disconnect and lock out electrical pow-
er before installing or servicing the unit.
WARNING:
• Maintenance and service must be
performed by skilled and qualified
personnel only.
• Observe accident prevention regu-
lations in force.
• Use suitable equipment and protec-
tion.
6.1 Service
The pump does not require any scheduled routine
maintenance. If the user wishes to schedule regular
maintenance deadlines, they are dependent on the
type of pumped liquid and on the operating condi-
tions of the pump.
Contact the local sales and service representative
for any requests or information regarding routine
maintenance or service.
Extraordinary maintenance may be necessary to
clean the liquid end and/or replace worn parts.
7 Troubleshooting
Introduction
Always specify the exact pump type and identifica-
tion code when requesting information or spare
parts from the Sales and Service department.
For other situation not mentioned in the table, re-
fer to the Sales and Service department.
Troubleshooting table
Problem Cause and solution
The pump
does not
start.
• The thermo-amperometric pro-
tection that is incorporated in the
single-phase version has activat-
ed; it is automatically reset when
the motor cools down.
• Check the power supply and en-
sure connection to the main is in-
tact.
Problem Cause and solution
• If the ground-fault protection de-
vice or circuit breaker is trig-
gered, then reset it. Replace any
blown fuses.
• The protection device against dry
running is triggered. Check the
water level in the tank; the protec-
tion device and respective con-
necting cables.
The pump
starts up
but the
thermal
protector is
triggered
after a
short time
or the fuses
blow.
• The power supply cable is dam-
aged, the motor short circuits or
thermal protector or fuses are not
suited for the motor current.
Check and replace the compo-
nents as necessary.
• Triggering the thermo-ampero-
metric protection (single phase)
or of the protection device (three-
phase) due to excessive current
input. Check the pump working
conditions.
• A phase in the power supply is
missing. Check the power supply.
• There are foreign bodies (solids,
filaments) inside the pump, the
impeller is jammed. Clean the
pump
The pump
starts but
does not
deliver any
liquid.
• The pump is sucking air, check
the liquid level, the tightness of
the suction pipes and the opera-
tion of the foot valve.
• The pump is not correctly primed.
repeat the instructions in Prime
the pump .
The pump’s
delivery is
reduced.
• Check for throttling of the pipes.
• Wrong rotation of the impeller
(three-phase). Check the direction
of rotation.
• The pump is not correctly primed.
repeat the instructions in Prime
the pump .
1 Introduction et sécurité
1.1 Introduction
Objet de ce manuel
L'objet de ce manuel est d'apporter les informa-
tions nécessaires pour :
• L'installation
• L'utilisation
• La maintenance
ATTENTION :
Lire attentivement ce manuel avant
d'installer et d'utiliser ce produit. Une
mauvaise utilisation du produit peut en-
traîner des blessures et des dégâts ma-
tériels et pourrait annuler la garantie.
REMARQUE :
Conserver ce manuel pour une consultation ulté-
rieure et veiller à ce qu'il puisse facilement être
consulté sur le site à tout moment.
1.2 Utilisateurs sans expérience
AVERTISSEMENT :
Ce produit est destiné à être utilisé par
du personnel qualifié exclusivement.
Respecter les précautions ci-dessous :
• Les personnes à mobilité réduite ne doivent pas
être autorisées à utiliser le produit sans supervi-
fr - Traduction des instructions d'origine
12