Atlas Copco WEDA 50 User manual

www.atlascopco.com
Atlas Copco Instruction Manual
WEDA 50
WEDA 60
Instruction Manual
for Atlas Copco WEDA Dewatering Pump
English
all options

ATLAS COPCO - PORTABLE ENERGY DIVISION
www.atlascopco.com
Printed matter N°
9822 1689 00-0
01/2014
Instruction Manual
for Atlas Copco WEDA Dewatering Pump
WEDA 50
WEDA 60
Original

- 4 -
Warranty and Liability Limitation
Use only authorized parts.
Any damage or malfunction caused by the use of unauthorized parts is not covered by Warranty or Product
Liability.
The manufacturer does not accept any liability for any damage arising from modifications, additions or
conversions made without the manufacturer's approval in writing.
Neglecting maintenance or making changes to the setup of the machine can result in major hazards.
While every effort has been made to ensure that the information in this manual is correct, Atlas Copco does not
assume responsibility for possible errors.
Copyright 2014, Atlas Copco Portable OEM Solutions
IRMER+ELZE KOMPRESSOREN GmbH, D-32547 Bad Oeynhausen, Germany.
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and drawings.

- 5 -
Preface
Please read the following instructions carefully
before starting to use your pump.
It is a solid, safe and reliable machine, built
according to the latest technology. Follow the
instructions in this booklet.
Always keep the manual available near the machine.
In all correspondence always mention the pump type
and serial number, shown on the data plate.
The company reserves the right to make changes
without prior notice.
Table of contents
1 Safety precautions ...................................... 7
1.1 Introduction .................................................. 7
1.2 Pictograms and symbols............................... 7
1.3 Safety during use and operation................... 7
1.4 Authorised personnel ................................... 8
1.5 Dangers when not following safety
instructions ................................................... 8
1.6 Safety-conscious working method ............... 8
1.7 Personal safety ............................................. 8
1.8 Safety during maintenance ........................... 8
1.9 Electrical safety ............................................ 8
1.10 Conversion and spare parts .......................... 8
1.11 Unintended use............................................. 9
1.12 Data plate ..................................................... 9
2 General description .................................. 10
2.1 Housing and wet end .................................. 10
2.2 Impeller ...................................................... 10
2.3 Overload protection.................................... 10
3 Main parts................................................. 10
4 Options ...................................................... 11
4.1 Float switch ................................................ 11
4.2 Motor Protection plug ................................ 11
4.3 Zinc anodes ................................................ 12
4.4 Epoxy coating............................................. 12
4.5 Electronic level control (NVB) .................. 13
4.6 Discharges .................................................. 13
5 Operating instructions............................. 14
5.1 Transport .................................................... 14
5.2 Starting ....................................................... 14
5.3 Stopping ..................................................... 14
6 Maintenance ............................................. 15
6.1 Preventive maintenance schedule .............. 15
6.2 External damage, loose parts ..................... 16
6.3 Motor insulation resistance ........................ 16
6.4 Impeller ...................................................... 16
6.5 Power cable ................................................ 16
6.6 Cable entry ................................................. 16
6.7 Oil............................................................... 16
7 Troubleshooting ....................................... 17
8 Technical details....................................... 18
8.1 Dimensions................................................. 18
8.2 Motor data WEDA 50 ................................ 19
8.3 Motor data WEDA 60 ................................ 19
8.4 Wiring diagram .......................................... 20
8.5 Flow characteristics.................................... 22
9 Spare parts................................................ 24
9.1 Ordering spare parts ................................... 24
9.2 Oil specification ......................................... 24
10 Warranty................................................... 25
11 Disposal ..................................................... 25
11.1 General ....................................................... 25
11.2 Disposal of materials.................................. 25
11.3 Declaration of conformity.......................... 26

- 6 -

- 7 -
Safety precautions
INTRODUCTION
The policy of Atlas Copco is to provide the users of
their equipment with safe, reliable and efficient
products. Factors taken into account are among
others:
- the intended and predictable future use of the
products, and the environments in which they are
expected to operate,
- applicable rules, codes and regulations,
- the expected useful product life, assuming proper
service and maintenance,
- providing the manual with up-to-date
information.
Before handling any product, take time to read the
relevant instruction manual. Besides giving detailed
operating instructions, it also gives specific
information about safety, preventive maintenance,
etc.
Keep the manual always at the unit location, easy
accessible to the operating personnel.
These safety precautions are general and some
statements will therefore not always apply to a
particular unit.
Only people that have the right skills should be
allowed to operate, adjust, perform maintenance or
repair on Atlas Copco equipment.
It is the responsibility of management to appoint staff
with the appropriate training and skill for each
category of job.
Take the necessary steps to keep unauthorized
persons away from the unit and eliminate all possible
sources of danger at the unit.
When handling, operating, overhauling and/or
performing maintenance or repair on Atlas Copco
equipment, the mechanics are expected to use safe
engineering practices and to observe all relevant local
safety requirements and ordinances.
All responsibility for any damage or injury resulting
from neglecting these precautions or by non-
observance of ordinary caution and due care required
in handling, operating, maintenance or repair, also if
not expressly mentioned in this instruction manual, is
disclaimed by Atlas Copco.
The manufacturer does not accept any liability for any
damage arising from the use of non-original parts and
for modifications, additions or conversions made
without the manufacturer’s approval in writing.
If any statement in this manual does not comply with
local legislation, the stricter of the two shall be
applied.
Statements in these safety precautions should not be
interpreted as suggestions, recommendations or
inducements that it should be used in violation of any
applicable laws or regulations.
PICTOGRAMS AND SYMBOLS
This manual contains safety instructions that, when
not observed, can lead to dangerous situations.
All labels on the pump must be kept legible. Damaged
labels have to be replaced.
SAFETY DURING USE AND OPERATION
This manual contains basic safety instructions that
have to be observed during installation, use and
maintenance. This manual is to be read by all
operators/users before installing and operating the
pump. It must be kept available to all operators/users
at the operating site. Apart from the instructions in
this chapter also the safety instructions mentioned in
others sections of this manual must be observed.
To be read attentively and acted accordingly before operating, performing maintenance or
repairing the unit.
These safety instructions are indicated
with a general pictogram indicating
danger.
Safety instructions related to possible
dangers when not observing the
electrical safety instructions are
indicated with this pictogram. Violating
these safety instructions may result in
death through electrocution.
This pictogram indicates safety
instructions that can lead to damage to
the pump when not observed.

- 8 -
AUTHORISED PERSONNEL
Only people that have the right skills should be
allowed to operate, adjust, perform maintenance or
repair on Atlas Copco equipment.
It is the responsibility of management to appoint
operators with the appropriate training and skill for
each category of job.
Skill level 1: Operator
An operator is trained in all aspects of operating the
unit with the push-buttons, and is trained to know the
safety aspects.
Skill level 2: Mechanical technician
A mechanical technician is trained to operate the unit
the same as the operator. In addition, the mechanical
technician is also trained to perform maintenance and
repair, as described in the instruction manual, and is
allowed to change settings of the control and safety
system. A mechanical technician does not work on
live electrical components.
Skill level 3: Electrical technician
An electrical technician is trained and has the same
qualifications as both the operator and the mechanical
technician. In addition, the electrical technician may
carry out electrical repairs within the various
enclosures of the unit. This includes work on live
electrical components.
Skill level 4: Specialist from the manufacturer
This is a skilled specialist sent by the manufacturer or
its agent to perform complex repairs or modifications
to the equipment.
In general it is recommended that not more than two
people operate the unit, more operators could lead to
unsafe operating conditions.
DANGERS WHEN NOT FOLLOWING SAFETY
INSTRUCTIONS
Not observing the safety instructions may lead to
personal injury, damage to the equipment and
environmental hazards. Not observing the safety
instructions will void any warranty claim.
SAFETY-CONSCIOUS WORKING METHOD
All safety instructions in this manual as well as
national accident preventing regulations and
company-internal regulations regarding labour,
operation and safety have to be observed.
PERSONAL SAFETY
Stay alert, watch what you are doing and use common
sense when operating a pump. Do not use pumps
while tired or under influence of drugs, alcohol or
medication. A moment of inattention while operating
pumps can result in serious personal injury.
Dress properly. Do not wear loose clothing or
jewellery. Contain long hair. Keep your hair,
clothing, and gloves away from moving parts. Loose
clothes, jewellery, or long hair can be caught in
moving parts.
Use approved safety equipment. Always wear eye
protection, protective shoes and gloves.
SAFETY DURING MAINTENANCE
The owner is responsible for adequate training of the
personnel maintaining the pumps. In principle all
maintenance has to be performed on a non-energised
pump. Observe the procedures as mentioned in the
manual.
ELECTRICAL SAFETY
Pumps must be plugged into an outlet that is properly
installed and grounded in accordance with all codes
and ordinances. Never remove the grounding prong
or modify the plug in any way. Do not use any adaptor
plugs. Check with a qualified electrician if you are in
doubt as to whether the outlet is properly grounded.
Do not abuse the power cable. Never use the power
cable to carry the pumps or pull the plug from an
outlet. Keep the power cable away from heat, oil,
sharp edges or moving parts. Damaged power cables
increase the risk of electric shock.
Use a network protected by a ground fault circuit
interrupter.
CONVERSION AND SPARE PARTS
Conversions are only allowed after written consent of
the manufacturer. Always use original spare parts.
Unauthorised conversion and / or the use of non-
original spare parts will void any warranty claims.

- 9 -
UNINTENDED USE
The reliability of the pump is only guaranteed when it
is used according the specifications in this manual.
The limits as indicated are not to be exceeded under
any circumstances.
Do not use the pump to transport water for human
consumption, for water well pumping or for
installation in an explosive atmosphere.
Caustic, slightly inflammable and other explosive
substances such as petrol, petroleum, diluted
nitrogen, greases, oils, salt water and waste water
from toilets as well as sludgy water that has a slower
flow capacity than water, should not be transported
using the pump.
The temperature of the transported fluids should not
exceed 40°C.
The appliance is not suitable for use as a stationary
installation (such as a lifting device, fountain pump).
DATA PLATE
1
2
10 11
12
13
14
15
16
18
17
3
4
5
6
7
8
9
19
Reference Name
1 Serial number
2 Pump type
3 Protection class
4 Production year
5 Rated voltage
6 Motor insulation class
7 Rated rpm
8 Rated current
9 Max. flow capacity
10 Rotation direction
11 Start kick direction
12 Weight
13 Max. head
14 Rated power input
15 Frequency
16 Number of phases
17 Max. fluid temperature
18 Max. submersed depth
19 Approval mark (CE, UL, CSA, ...)

- 10 -
General description
WEDA dewatering pumps are electrical submersible
pumps for dewatering applications in construction
sites, industry, mining, tanks, pools etc. The range
consists of several dewatering pumps, all designed for
though pumping in demanding applications. The
compact design and light weight make the pumps
very versatile and easy to install.
The design with outer jacket for cooling and motor
protector keeps the pump running safely under
various conditions. The double mechanical seal runs
in an oil bath and assures a long life time.
Features:
Dry running capability. Motor protector.
Plug and pump.
The double mechanical seal runs in an oil bath and
assures a long life time.
Impeller from high chrome steel minimizes
maintenance.
The bearings are greased for life with high
temperature grease and anti-corrosion additive.
NVB level control (option)
WEDA 50 and 60 are compact versatile dewatering
pumps for various pumping needs. The high chrome
steel impeller is designed to handle the water in
construction sites, manholes and industrial pits etc.
with very low risk of clogging.
HOUSING AND WET END
The housing is made of aluminium and parts of wet
end are rubber lined.
IMPELLER
The WEDA 50 and 60 pumps are equipped with a
high chrome steel impeller.
OVERLOAD PROTECTION
The pump is supplied with an automatically resetting
thermal overload protection.
Main parts
Reference Name
1Cable
2 Coupling
3 Discharge
4Strainer
5 Motor protection plug (option)
6Handle
7 Data plate
8 Float switch
1
2
3
5
4
6
7
8

- 11 -
Options
FLOAT SWITCH
470W369455 - Float switch kit
(Float switch kit for local assembly afterwards).
Use the pump with a float switch if automatic starting
and stopping is required.
The pump starts if the float switch reaches an angle of
+55° and stops at an angle of -55°.
For continuous operation block the float switch
vertically, pointing upwards.
MOTOR PROTECTION PLUG
Motor protection plug
WEDA 50: 470W157913 5P-16A 10-16A
WEDA 60: 470W157916 5P-32A 16-20A
(Only for pumps with 400V - 3ph motor).
To protect the motor against over current it is strongly
recommended to use an external motor protector
(option only for pumps with 400V - 3ph motor). The
external motor protector can be ordered separately. It
combines the on/off switch and the overload
protection in one device, thus creating optimal
operating comfort and protection for the pump.
If the indicator lamp 3 is lighting red, reverse two
phases with a screw driver in plug 4.
After a fault the pump must be restarted manually
pressing the switch on the external motor protector.
Reference Name
1 Float switch
1
Reference Name
1 Over current relay
2 On/Off switch
3 Indicator lamp for phase control
4 Plug with phase inverter
1234

- 12 -
ZINC ANODES
470W254206 - Zinc anode kit
When pumping salt water (which is highly aggressive
towards aluminium), the pump should be protected
with zinc anodes.
EPOXY COATING
8162170300 - Epoxy coating
For optimum protection when pumping salty water,
water containing aggressive substances, or water with
a high or low pH value the pump can be protected
with an epoxy resin coating.
Reference Name
1Zincanode
2Zincanode
1
2

- 13 -
ELECTRONIC LEVEL CONTROL (NVB)
The WEDA50/60 series pumps can be equipped with
a built-in electronic level control, NVB. It is
connected to a set of 2 probes located on the pump
contactor cover.
Features
Pumping control of the pump according to the water
level.
Pump protection, the pump will stop in case of:
Wrong phase sequence (change 2 wires in the plug
to get the proper sequence).
Phase failure.
Overload (clogged strainer, etc…).
Overheating: controlled by thermo switches
inside the motor winding.
Running without water.
The pump starts automatically as the rising water
reaches the probes on the contactor cover. The pump
stops again, automatically, once the water level falls
to the point at which the pump begins to suck in air
through the strainer.
The water level for starting can be moved down using
extension wires to connect the probes.
The water level for stopping can be adjusted using the
NVB potentiometer (1):
If the pump does not stop, when no water, turn the
potentiometer (1) clockwise until it stops.
If the pump stops before air suction, turn the
potentiometer (1) anti-clockwise.
The level control can be disabled by bridging the
probes. The jumper for bridging the probes is
supplied with the kit / pump. When switched on the
pump runs continuously.
DISCHARGES
The pump can be equipped with several discharges,
see table above.
A pump equipped with NVB level
control will not start when phase
sequence is wrong, or in case of phase
failure.
1
Discharge Part number
3” Hose standard with 1 clamp 470W203562
3” BSP - thread 470W203484
3” NPT - thread 470W203570
4” Hose standard with 1 clamp 470W203564
4” BSP - thread 470W203482
4” NPT - thread 470W203572
3” Cam lock adapter 8162164100
3” Cam lock coupling 8162164300
3” Storz coupling 470W157011
4” Storz coupling 470W157012

- 14 -
Operating instructions
TRANSPORT
STARTING
Check the power cable with mains plug for damage
before every use. If the power cable is damaged,
exchange it immediately.
Check whether the power supply matches the rating
on the Data plate.
Check whether the fluid to be pumped matches the
characteristics mentioned in section Technical
details.
The minimum start water level is approx. 60 mm.
Attach a suitable hose to the outlet and make sure it is
thoroughly tightened. Avoid making excessive bends
in delivery hoses or piping, as this may cause reduced
flow. Turn discharge in horizontal (1) or vertical (2)
direction according to application.
Run the electric cable so that sharp bends are avoided
and there is no danger of the cable being pinched or
otherwise being damaged.
Take care that the pump is submerged before putting
the plug in the socket. Never install the pump directly
on a weak soil layer or muddy ground. The pump may
sink and mud/soil may enter the pump and reduce the
flow. Check that the pump is pumping.
In case the motor stops due to overload or a blocked
impeller, first pull the plug out of the socket before
removing the pump from the pump site to check for
why the pump has stopped. Remove the blockage, let
the pump cool down and resume pumping.
STOPPING
Take the plug out of the socket and take the pump out
of the pump site. If the pump has been operating in
dirty water, allow it to run in clean water for a short
period or flush clean water through the discharge port.
If clay, cement or other sticky dirt remain in the pump
this may clog the impeller and seal area.
Always use the handle to lift the pump.
Never use the power cable to lift or
transport the pump. Always be careful
not to let it fall or bump it against the
wall or other equipment.
The pump may not be used in an
explosive / inflammable environment or
used to pump inflammable liquids!
If the pump is being used for pumping
water out of a swimming pool:
nobody is allowed to be in the pool
during pumping,
the pump must be connected via a
residual current device having a
rated residual operating current not
exceeding 30 mA.
Never operate the pump without the
strainer.
12

- 15 -
Maintenance
For maintenance kits and spare parts please refer to the Atlas Copco Spare parts list 9822 1690 00.
PREVENTIVE MAINTENANCE SCHEDULE
Service task Every month Every 3 months Every 6 months Every 12 months
in use When worn
Grease check x
Pump lubrication x
Check wear parts x
Change wear parts x
Adjustment of pump performance x
Replace sealing's of sealing package xx
Replace bearings of sealing package xx
Check contactor function x
Stator measurement x
Check cable x
Check cable gland x
Check pipes, valves x
Check float switch / Level sensor NVB function x
Check external damage, loose parts x

- 16 -
EXTERNAL DAMAGE, LOOSE PARTS
Make sure that all screws, bolts and nuts are tight.
Check the condition of the pump lifting handle and
replace if damaged or worn. Replace any external part
that appears worn or damaged.
MOTOR INSULATION RESISTANCE
Use a 500 V DC Megger and measure the insulation
between the phases and between any phase and
ground. Resistance values should be over 1 M ohm. If
abnormal readings are obtained, immediately hand
the pump in for repair.
Also observe any local requirement regulations. The
stricter one will prevail.
IMPELLER
Inspect the impeller by removing the strainer and
wear plate. Replace the impeller if it is damaged or
severely worn.
POWER CABLE
Inspect the cable for cuts, scrapes or sharp bends. If
the outer jacket is damaged, replace the cable. Do not
make splices within wet wells.
CABLE ENTRY
Make sure that the cable entry flange and strain relief
clamp are tight. If the cable entry is showing signs of
leakage replace the cable.
OIL
To get access to the oil plugs remove wet end and
outer casing.
For disassembly and reassembly refer to the work
instructions:
Check the condition of the oil to see if any water
leakage has occurred. Remove the oil plug (2). Take
an oil sample using a pipette. Check for impurities
and emulsification. (Oil must be clear.) If water
intrusion has occurred the seal must be replaced.
Refill the seal chamber with fresh oil. Refer to section
Technical details for type and quantity of oil.
Reference Name
1Oil
2 Oil plug
3O-ring
9822 1643 00 WEDA 60N,H 50Hz
9822 1659 00 WEDA 60N,H 60Hz
9822 1691 00 WEDA 50L,N,H 50Hz
9822 1692 00 WEDA 50L,N,H 60Hz
1
2
3

- 17 -
Troubleshooting
Problem Cause Action
Pump will not run 1. Fuse blown or circuit breaker tripped
2. Broken cable
3. Power failure
4. Impeller jammed
5. Stator winding burnt-out
6. Float switch is defective or not correctly in position
1. Replace fuse or reset circuit breaker
2. Replace cable
3. Restore power supply
4. Clean impeller
5. Replace pump
6. Check float switch
Pump starts and stops 1. Strainer blocked
2. Insufficient water level
3. Voltage too low when using an extra cable
4. Water too hot
1. Clean strainer
2. Raise water level
3. Use a cable with larger section
4. Let the water cool down
Pump's capacity is too low 1. Delivery hose is squeezed
2. Total pumping head is too high
3. Strainer is blocked
4. Impeller is worn
1. Straighten delivery hose
2. Review pumping situation
3. Clean strainer
4. Replace impeller
Pump with electronic level control will
not start when water level reaches probes
1. Probes are bridged
2. Wrong phase sequence
3. Phase failure
1. Remove probe jumper
2. Check phase sequence
3. Check power supply
Pump with electronic level control will
not stop when water level drops below
strainer
1. Wrong setting of NVB potentiometer 1. Turn NVB potentiometer in "-" direction
Pump with electronic level control stops
before water level reaches strainer
1. Wrong setting of NVB potentiometer 1. Turn NVB potentiometer in "+" direction

- 18 -
Technical details DIMENSIONS
Unit WEDA 50 WEDA 60
Discharge, smooth and threaded
BSP
inch 3” 3”
inch 4” 4”
Weight kg N/L = 55 H = 63 N = 55 H = 63
Max solids handling mm 6 6
Cable length m 20 20
Max submersed depth m 20 20
Impeller type centrifugal impeller centrifugal impeller
Impeller material high chrome steel high chrome steel
Shaft seals mechanical seal mechanical seal
Motor protection thermal protection thermal protection
Motor insulation class F F
pH range 5 - 8 5 - 8
Max fluid temperature °C 40 40
The pump is designed to pump water that meets the specifications in the table above.
The pump is not to be used in explosive or inflammable environments or for pumping
flammable liquids.
Dimensions
in mm DWH
WEDA 50 N 277 330 760
WEDA 50 L 277 330 760
WEDA 50 H 312 330 810
WEDA 60 N 277 330 760
WEDA 60 H 312 330 810
W
H

- 19 -
MOTOR DATA WEDA 50
MOTOR DATA WEDA 60
WEDA 50 L WEDA 50 N WEDA 50 H
Volta ge
(V)
Frequence
(Hz)
Rated current
(A)
Max. power input
(kW)
Rated current
(A)
Max. power input
(kW)
Rated current
(A)
Max. power input
(kW)
230 50 13 5.1 on request 4.8 on request 6.0
230 60 19 5.8 15.2 4.6 24 9.2
400 50 10 5.1 9.5 4.8 11 6.0
460 60 10 5.8 8.5 4.6 14.5 9.2
WEDA 60 N WEDA 60 H
Volta ge
(V)
Frequence
(Hz)
Rated current
(A)
Max. power input
(kW)
Rated current
(A)
Max. power input
(kW)
230 50 25.5 9.5 30 11.2
230 60 30 9.4 on request on request
400 50 16 9.5 19 11.2
460 60 15 9.4 24 10.5
500 50 13 9.5 15.4 11.2

- 20 -
WIRING DIAGRAM
Reference Name
1 Float switch (optional)
b
c
d
470W740046-2
1
a
WEDA 50 - 230V/3ph/50Hz
WEDA 50 - 500V/3ph/50Hz
WEDA 60 - 230V/3ph/50Hz
WEDA 60 - 500V/3ph/50Hz
Colour code
a = green/yellow c = grey
b = black d = brown
b
c
d
470W740047-2
1
WEDA 50 - Y 400V/3ph/50Hz
WEDA 50 - Y 440-460V/3ph/60Hz
WEDA 60 - Y 400V/3ph/50Hz
WEDA 60 - Y 440-460V/3ph/60Hz