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Lowara LEZ 200-250 UNL 2204 [12/19] Model ler lers lez
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Installation, Operation and Maintenance Instruction
Model LER, LERS, LEZ
LER 100-english page 9
Revision 01
Article No 771073302
Issue 01/2010
If vibrations are transmitted to the pump
foundation from adjoining components, it must be
guarded through adequate vibration damping
paddings (vibrations from outside can impair the
bearing).
The size of these insulating pads will vary,
depending on circumstances, and should
there
fore be determined by an experienced
specialist.
Heavy pumps should be mounted on a concrete
foundation, which is isolated a
gainst the ground
with a min.
20 cm thick rubber- or cork plate.
5.2 Connection of Piping to the Pump
The pump must not be used as fixed point for
the piping. The permitted pip
ing loads must not
be exceeded, refer to chapter 3.6.
5.2.1 Suction and discharge pipe
The pipes must be of a size and design that liquid
can flow freely into the pump and that the pump
functions without problems. Particular attention is
to be paid to ensuring that suction pipes are
airtight and that the NPSH values are observed.
Under suction lift condition lays the suction pipe in
the horizontal section towards the pump so that it
is slightly inclined upwards so that no air traps
occur. Do not install fittings or elbows right before
the suction nozzle.
Piping for direct installation must show adequate
firmness. Keep in mind vibration insulation (see
chapter 5.1).
When laying the pipes, make sure that the pump
is accessible for maintenance, installation and
disassembly.
Notice "Permitted Forces on Flanges" (chapter
3.6).
Before connecting up to pump: remove protective
coverings from suction and discharge branches.
Before starting up, the pipe system, fittings and
equipment must be cleaned to remove weld
spatter, scale etc. Any pollutants are to be
completely removed from pump units that are
directly or indirectly connected to drinking water
systems before being installed and taken into use.
To protect the shaft sealing (especially mechanical
seals) against foreign impurities, it is
recommended that a sieve, 800 micron, is
installed in the suction / intake pipe when the
motor is being started up.
If the pipe system is tested with the pump
installed, do not exceed the maximum permitted
casing pressure of the pump and/or shaft sealing
(see data sheet).
When emptying the pipe after the pressure test,
make sure that the pump is treated properly
(danger of rust and problems when starting up).
5.3 Electric Connection
Electrical connection work may only be carri
ed
out by an authorised professional. The rules
and regulations valid for electrical technology,
especially those concerned with safety
meas
ures, must be observed. The regulations
of the national power supply companies
operating in that area must also be observed.
Before starting work, check that the information on the
motor name plate is the same as the local mains
network. The power supply cable of the coupled drive
motor must be connected up in accordance with the
wiring diagram produced by the motor manufacturer. A
protective motor switch must be provided.
In areas endangered to explosion IEC 60079-
14
must additionally be noticed for the electric
installation.
Standard connection:
5.4 Final check
It must be possible to turn the unit easily by hand at
the stub shaft.
6. Start-up, Operation, Shut down
The plant may only be started up by people who
are familiar with the local safety regulations and
with these Operating Instructions (especially
with the safety regulations and safety
instructions given here).
6.1 Initial start-up
Before starting up the pump, check, if the following
points were controlled and carried out:
There is no need to lubricate the pump before
starting it up.
Pump and suction pipe must be filled completely
with liquid when starting up.
At vertical installation position the seal chamber
must get vented before initial start-up.
Содержание
- En vogel volute casing pumps model ler lers lez 1
- Ec declaration of conformity 2
- Installation operation and maintenance instructio 4
- Model ler lers lez 4
- Table of contents 4
- Installation operation and maintenance instructio 5
- Model ler lers lez 5
- Name plate 5
- General 6
- Guarantee 6
- Installation operation and maintenance instructio 6
- Marking of references in the 6
- Model ler lers lez 6
- Operating instructions 6
- Safety regulations 6
- Dangers of non observance of the safety instructions 7
- Installation operation and maintenance instructio 7
- Model ler lers lez 7
- Safety instructions for maintenance inspections and mounting work 7
- Safety instructions for the operator worker 7
- Unauthorized alteration and spare parts production 7
- Undue operation 7
- Use acc to regulations 7
- Description 8
- Design 8
- Design coding system 8
- Installation operation and maintenance instructio 8
- Model ler lers lez 8
- Approximate value for sound 9
- Are valid for pump and motor sound pressure level 9
- Bearing 9
- During installation push the mech seals with a bellows in such a way that the bellows is compressed and not stretched danger of tearing apart 9
- Especially the seal faces must be clean dry and undamaged don t apply lubrication on the seal faces of the mech seal 9
- Have all required parts prepared so that assembly can be completed quickly the lubricants are only effective for a short time after that the axial mobility and thus the automatic adjustment of the elastomers are lost 9
- If a lubricant is provided with the replacement mech seal you should use this 9
- Installation operation and maintenance instructio 9
- Ler 100 english page 6 9
- Measured in 1 m distance from pump surface acc to din 45635 part 1 and 24 room and foundation influences are not considered the tolerance for these values is 3 db a addition with 60 hz operation pump alone pump with motor 4 db a 9
- Model ler lers lez 9
- Never push elastomers over sharp edges if necessary use mounting devices 9
- Pay attention to the utmost cleanness 9
- Pressure level 9
- Revision 01 article no 771073302 issue 01 2010 9
- Shaft sealing 9
- Sound pressure level 9
- Structure of the mechanical seal this shaft seal is a single mech seal with installation dimensions according to en 12756 din 24960 form u no additional flushing of the seal chamber is necessary the seal casing where the mechanical seal is located must always be filled with liquid for a description of materials and operational ranges of the mech seals supplied please refer to the data sheet in the operation instructions and order confirmation for the internal structure of the mechanical seal see the following sectional drawings 3 general information 9
- The reuse of mech seals that have already been used for a longer time can lead to leaking at the seal faces after reinstallation therefore the replacement of the mech seal with a new one is recommended the removed mechanical seal can be reconditioned by the manufacturer and serve as a replacement mech seal 3 information for the mounting 9
- The shaft is guided by the ball bearings of the motor the bearings are grease lubricated for life and therefore maintenance free 9
- The specified values fort he sound pressure level 9
- U1 carbon silicon carbide epdm bq1egg exception 65 and 75mm seal carbon ceramics epdm u2 carbon silicon carbide viton bq1vgg u3 silicon carbide silicon carbide viton q1q1vgg position 4 impeller material n cast iron 0 020 l ductile iron 0 040 only for pump size dn 300 position 5 pump casing material n cast iron 0 020 l ductile iron 0 040 other materials are not available position 6 motor power in 1 10 kw position 7 number of motor contacts 2 pole 2900 rpm 4 pole 1450 rpm 6 pole 950 rpm 9
- Use mineral grease or oil only if you are completely sure that the elastomers of the mech seal are oil resistant use no silicone 9
- Use only lubricants with which you are certain use only lubricants with which you are certain that no dangerous reaction can occur between the lubricant and the pumped medium 9
- Basically the values regarding pressures and temperatures given in the data sheet and or the order confirmation as well as on the name plate are valid exceeding or remaining under of these values are undue if there are no pressures and or temperatures mentioned in data sheet and or order confirmation the following limits are valid for suction pressure and room temperature 10
- Following the europump recommendation for pump acc to iso 5199 the data for forces and torques are only valid for static piping loads and are valid for one nozzle all values for forces and torques refer to standard material 0 020 10
- Installation operation and maintenance instructio 10
- Ler 100 english page 7 10
- Model ler lers lez 10
- Permitted nozzle loads and torques at the pump nozzles 10
- Permitted pressures and temperatures 10
- Suction pressure system pressure pressure at pump suction max 5 bar ambient temperature max 40 c on application of pumps local laws and regulations must be noticed as well e g din 4747 or din 4752 section 4 10
- Valid for the pump hanging in the piping valid for the pump hanging in the piping 10
- Valid for the pump standing on the support foot 10
- Installation operation and maintenance instructio 11
- Model ler lers lez 11
- Mounting installation 11
- Mounting of pump unit 11
- Storage conservation 11
- Transport handling 11
- Transport handling storage 11
- Connection of piping to the pump 12
- Electric connection 12
- Final check 12
- Initial start up 12
- Installation operation and maintenance instructio 12
- Model ler lers lez 12
- Start up operation shut down 12
- Installation operation and maintenance instructio 13
- Limits of operation 13
- Lubrication 13
- Model ler lers lez 13
- Monitoring 13
- Restarting 13
- Switch on drive 13
- Cleaning of pump 14
- Dismantling and repair of pump 14
- General remarks 14
- Installation operation and maintenance instructio 14
- Mechanical seals 14
- Model ler lers lez 14
- Motor bearings 14
- Servicing maintenance 14
- Shutting down 14
- Storage longer periods of non operation 14
- Faults causes and solutions 15
- General 15
- Installation operation and maintenance instructio 15
- Model ler lers lez 15
- Spare parts 15
- Spare parts spare pumps 15
- Stand by pumps 15
- Installation operation and maintenance instructio 16
- Ler 100 english page 13 16
- Model ler lers lez 16
- Revision 01 article no 771073302 issue 01 2010 16
- Installation operation and maintenance instructio 17
- Model ler lers lez 17
- Installation operation and maintenance instructio 18
- Model ler lers lez 18
- Complete unit motor power 19
- Installation operation and maintenance instructio 19
- Ler 100 english page 16 19
- Ler lers 1450 mi 19
- Ler lers 2900 mi 19
- Ler lers 970 mi 19
- Lez 1450 mi 19
- Lez 2900 mi 19
- Lez 970 mi 19
- Model ler lers lez 19
- Revision 01 article no 771073302 issue 01 2010 19
- Weight 19
- Weights 19
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