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2          Introduction

Introduction          3

1  Introduction

Thank you for purchasing a LORENTZ product.

Before you begin

 – Please check the product label to 

verify that this is the item you ordered. To ensure the 
product is appropriate for your application please 

check the product specifications.

In addition to this manual, manuals for the pump 
end, controller and all other components used in 
your system should also be read.

2  Safety Instructions

Safe operation of this product depends on its correct 
transportation, operation and maintenance. Failure 
to follow these instructions can be dangerous to life 
or health and/or void the warranty.

PLEASE READ AND FOLLOW 
ALL INSTRUCTIONS!

Explanation of warning symbols 

 

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WARNING 

– Disregard can lead to 

injury, death or damage the system.

 

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CAUTION 

– Recommended to avoid 

damage, premature aging of the pump or 

similar negative consequences.

When installing and using this electrical equipment, 
basic safety precautions should always be followed, 
including the following:

This manual contains basic instructions which must 
be observed during installation, operation and 
maintenance. The manual should be carefully read 
before installation and use of the product by the 
person in charge of the installation. The manual 
should also be read by all other technical personnel/
operators and should be available at the installation 
site at all times.

Personnel qualification and training -

 All 

personnel responsible for the operation, 
maintenance, inspection and installation must 

be fully qualified and trained. Responsibility, 

competence and the supervision of such personnel 
must be strictly regulated by the user. Should 
the available personnel be lacking the necessary 

qualification, they must be trained and instructed 

accordingly. If necessary, the operator may require 
the manufacturer/supplier to provide such training. 
Furthermore, the operator/user must ensure that 
the personnel fully understand the content of the 
manual.

Safe operation

 – The safety directions in this 

manual, existing national regulations for the 
prevention of accidents as well as internal guidelines 
and safety regulations for the operator and user 
must be followed at all times.              

General safety directions for the operator/user

 

– Protective covers for moving parts (e.g. couplings) 
must not be removed when the equipment is 
running. Leaks (e.g. at the shaft seal) of hazardous 
pumping media (e.g. explosive, toxic, hot liquids) 
must be disposed of in such a way that any danger 
to personnel and the environment is avoided. All 
government and local regulations must always be 
followed. Any danger to persons from electrical 
energy must be eliminated by using proper 
installation practices which must be in accordance to 
local regulations (e.g. VDE in Germany).

Safety directions for maintenance, inspection 

and assembly work

 – It is the user’s responsibility 

to ensure that all maintenance, inspection and 
assembly work is performed exclusively by 

authorized and qualified experts who are sufficiently 

informed through reviewing the operating 
instructions. 

Local accident prevention regulations must be 
observed. All work on the equipment should be done 
when it is not being operated and ideally electrically 
isolated. The sequence for shutting the equipment 
down is described in the manual and must be strictly 
observed. Immediately upon completion of the 
work, all safety and protective equipment must be 
restored and activated. 

Unauthorized changes and manufacturing 

of spare parts

 – Any conversion or changes of 

the equipment may only be undertaken after 
consulting the manufacturer. Original spare parts 
and accessories authorized by the manufacturer 
guarantee operational safety. 

Using unauthorized parts may void any liability 

on the part of the manufacturer. Configuring the 
schemes in this way ensures flexibility in the future if 

local management changes.

Unauthorized operation

 – The operational safety 

of the equipment delivered is only guaranteed 
if the equipment is used in accordance with the 
directions outlined in this manual. Limits stated 
in the datasheets may not be exceeded under any 
circumstances.

Cited standards and other documentations

 – DIN 

4844 Part 1 Safety marking; Safety symbols W 8, 
Supplement 13; DIN 4844 Part 1 Safety marking; 
Safety symbols W 9, Supplement 14

RETAIN THESE INSTRUCTIONS FOR 

FUTURE USE!

 

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WARNING 

– To reduce the risk of 

injury, do not permit children to use this 
product.

WARNING 

– The equipment is not to 

be used by persons (including children) 
with reduced physical, sensory or mental 
capabilities, or lack of experience and 
knowledge, unless otherwise instructed 
and closely supervised.

WARNING 

– It must be ensured 

that all grounding connections are 
properly made and that the resistance 
towards ground meets local codes and 
requirements.

WARNING 

– To reduce the risk of 

electric shock, replace any damaged 
cords and cabling immediately.

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