
26 WILO SE 08/2013 Ed.04 DIN A4
English INTRODUCTION
1. Introduction
1.1. About this document
The language of the original operating manual is 
German. All other languages of these instructions 
are translations of the original operating instruc-
tions.
This manual is divided into individual sections, 
which are listed in the table of contents. Each 
section has a heading which clearly describes its 
content.
A copy of the EC declaration of conformity is a 
component of these operating instructions.
Ifatechnicalmodicationismadeonthedesigns
named there without our agreement, this decla-
ration loses its validity.
1.2. Personnel qualications
All personnel who work on or with the switchgear 
mustbequaliedforsuchwork;electricalwork,
forexample,mayonlybecarriedoutbyaqualied
electrician. All personnel must be of legal age.
Operating and maintenance personnel must also 
observe national accident prevention regulations.
It must be ensured that personnel has read and 
understood the instructions in this operation and 
maintenance manual; if necessary, this manual 
must be ordered from the manufacturer in the 
required language.
This switchgear is not intended for use by persons 
(including children) with reduced physical, senso-
ryormentalcapabilities,orlackofexperienceand
knowledge, unless they have been given supervi-
sion or instruction concerning use of the switch-
gear by a person responsible for their safety.
Children should be supervised to ensure that they 
do not play with the switchgear.
1.3. Abbreviations
• p.t.o. = please turn over
• re. = regarding
• approx.=approximately
• i.e. = that means
• incl. = including
• min. = minimum
• max.=maximum
• etc. = and so on
• s.a. = see also
• e.g.=forexample
1.4. Copyright
This operation and maintenance manual has been 
copyrighted by the manufacturer. The operation 
and maintenance manual is intended for use by 
installation, operating and maintenance person-
nel. It contains regulations and drawings which 
may not be reproduced or distributed, either 
completely or in part, or used for any competitive 
purposewithouttheexpressedconsentofthe
manufacturer. Illustrations may differ from the 
originalandserveonlyasexampleillustrationsof
switchgears.
1.5. Rights of modication
The manufacturer reserves the right to make 
technicalmodicationstosystemsorcompo-
nents. This operation and maintenance manual 
refers to the switchgear indicated on the title 
page.
1.6. Warranty
This section contains the general information on 
the warranty. Contractual agreements have the 
highest priority and are not superseded by the 
information in this section.
The manufacturer is obliged to correct any 
defects found in the switchgears it sells, provid-
ed that the following requirements have been 
fullled:
1.6.1. General
• The defects are caused by the materials used 
or the way the product was manufactured or 
designed.
• The defects were reported in writing to the man-
ufacturer within the agreed warranty period.
• The switchgear was used only as intended.
1.6.2. Warranty period
If no other provisions have been made, the war-
rantyperiodappliestotherst24monthsafter
commissioningortoamax.periodof30months
after the delivery date. Other agreements must be 
madeinwritingintheorderconrmation.These
remain valid at least until the agreed warranty 
periodoftheswitchgearhasexpired.
1.6.3. Spare parts, attachments and modications
Only genuine spare parts from the manufacturer 
may be used for repairs, replacements, attach-
mentsandmodications.Unauthorizedadd-ons
andmodicationsortheuseofnon-originalspare
parts can seriously damage the switchgear and/or 
injure personnel.
1.6.4. Maintenance
The prescribed maintenance and inspection 
work should be carried out regularly. This work 
mayonlybecarriedoutbyqualied,trainedand
authorized personnel.
1.6.5. Damage to the product
Damage and faults that endanger safety must 
be eliminated immediately by trained personnel. 
The switchgear may only be operated if it is in 
proper working order. During the agreed warranty 
period, the switchgear may only be repaired by 
the manufacturer or an authorized service center. 
The manufacturer reserves the right to ask the 
operator to return the damaged switchgear to the 
factory for inspection.
1.6.6. Exclusion from liability
No liability will be assumed for damage to the 
switchgear if any of the following items apply: