Elmo Rletschle L-BL2 User Manual

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Edition: 12.2009 · 610.44444.40.000 Original operating instructions · English

Operating instructions L-BL2



2BL2 041 2BL2 061 2BL2 141 2BL2 251 2BL2 101 2BL2 281 2BL2 341

L-Serie

L-Series

Flüssigkeitsring

Liquid Ring

Contents

System design ..........................................................................................................................................3

1 Safety ..................................................................................................................................................4

1.1 Definitions .................................................................................................................................4

1.1.1 Safety alert symbol.......................................................................................................4

1.1.2 Signal words.................................................................................................................4

1.2 General safety precautions .......................................................................................................4

1.3 Residual risks............................................................................................................................6

2 Intended Use .......................................................................................................................................7

3 Technical Data ....................................................................................................................................8

3.1 Mechanical data ........................................................................................................................8

3.2 Electrical data..........................................................................................................................10

3.3 Operating conditions ...............................................................................................................10

4 Transport and Handling.....................................................................................................................11

5 Installation .........................................................................................................................................12

5.1 Installation ...............................................................................................................................12

5.2 Electrical connection (motor) ..................................................................................................14

5.3 Filling.......................................................................................................................................17

5.4 Connection of pipes/hoses......................................................................................................18

5.4.1 Inlet connection ..........................................................................................................18

5.4.2 Exhaust-air connection...............................................................................................19

5.5 Accessories.............................................................................................................................19

6 Commissioning..................................................................................................................................20

6.1 Preparation and start-up .........................................................................................................20

6.2 Shut-down ...............................................................................................................................20

7 Operation...........................................................................................................................................21

7.1 Start-up and shut-down...........................................................................................................21

7.2 Operation within the process ..................................................................................................21

7.2.1 Loss of operating liquid ..............................................................................................21

7.2.2 Increase in operating liquid ........................................................................................22

8 Shutting Down and Longer Standstill ................................................................................................23

8.1 Draining...................................................................................................................................23

8.2 Preparing for longer shut-down...............................................................................................23

8.3 Storage conditions ..................................................................................................................24

9 Servicing............................................................................................................................................25

9.1 Maintenance............................................................................................................................26

9.2 Repairs/troubleshooting ..........................................................................................................29

9.3 Service/After-sales service......................................................................................................33

9.4 Decontamination and Declaration of Clearance .....................................................................33

10 Disposal.............................................................................................................................................33

EU declaration of conformity ..................................................................................................................34

Form for statement on safety .................................................................................................................35

Replication, distribution and / or editing of this document and the use and distribution of its content is prohibited unless explicitly permitted. Violation obligates compensation for damages. All rights reserved in case of the issue of a patent, utility patent or design patent.

System design

007

System design

C 030 027

096 001

025 079 058

095

005

F 052

057 010

012

023 085 086

066

065

032 031

039

043 064

080

019

040 041

025 060

037

007 025 060

L_300

J K

2BL2 141

Fig. 1: System design

A Inlet connection B Exhaust-air connection C Cable inlet D Installed unit (L-BV7 pump) E Draining installed unit F Draining cooler G 3-way valve (only 2BL2 041 to 2BL2 141) H Screw-in connecting sleeve J Operating liquid hole K Cavitation protection hole

001 U-separator 005 Drain opening 007 Filling opening and connection for drain

controller

010 Fill level indicator 012 Screw 019 Nut 023 Nut 025 Connection for supply or drain controller

2BL2 251, 281, 341

027 Water or air water cooler 030 Screw 031 Condensation cooler 032 Screw 037 Connecting piece 039 Intake hose with check valve 040 Injection water pipe 041 Condensate pipe 043 Operating liquid pipe 052 Rating plate 057 Screw 058 Protective screen 060 Screw 064 Cover plate 065 Cord grip

066 Screw 079 Restrictor sleeve for water pipe 080 Restrictor sleeve for air pipe 095 Water filter 096 Air filter

Safety

1 Safety

1.1 Definitions

To point out dangers and important information, the following signal words and symbols are used in these operating instructions:

1.1.1 Safety alert symbol

The safety alert symbol

safety precautions in the highlighted heading field on the left next to the signal word (DANGER, WARNING, CAUTION).

Safety precautions with a safety alert symbol indicate a danger of injuries.

Be sure to follow these safety precautions to

protect against injuries or death! Safety precautions without a safety alert symbol indicate a danger of damage.

1.1.2 Signal words DANGER

The signal words are located in

the safety precautions in the

WARNING

CAUTION

NOTICE

NOTE

highlighted heading field. They follow a certain hierarchy and indicate (in conjunction with the safety alert symbol, see

Chapter 1.1.1) the seriousness of

the danger and the type of warning.

See the following explanations:



DANGER

Danger of injuries.

Indicates an imminently hazardous situation,

that will result in death or serious injury if the

corresponding measures are not taken.



WARNING

Danger of injuries.

Indicates a potentially hazardous situation, that

could result in death or serious injury if the

corresponding measures are not taken.



CAUTION



is located in the

CAUTION

Danger of damage.

Indicates a potentially hazardous situation that

may result in property damage if the

corresponding measures are not taken.

NOTICE

Indicates a possible disadvantage, i.e.

undesirable conditions or consequences can occur if the corresponding measures are not taken.

NOTE

Indicates a possible advantage if the

corresponding measures are taken; tip.

1.2 General safety precautions



WARNING

Improper use of the system can result in serious or even fatal injuries!

These operating instructions

 must have been completely read and

understood before the start of any work with or on the system,

 must be strictly observed,  must be available at the system operating

location.



WARNING

Improper use of the system can result in serious or even fatal injuries!

Only operate the system

 for the purposes indicated under "Intended

Use"!

 with fluids specified under "Proper use"!  with the values indicated under 'Technical

Data'!



WARNING

Danger of injuries.

Indicates a potentially hazardous situation, that

may result in minor or moderate injury if the

corresponding measures are not taken.

610.44444.40.000 4 / 36 © Gardner Denver Deutschland GmbH

Improper use of the system can result in serious or even fatal injuries!!

All work on and with the system (transport, installation, commissioning, shut-down, maintenance, disposal) may only be carried

out by trained, reliable personnel!

Safety



WARNING

When working on the system, there is danger of injury, e.g. due to cutting/cutting off, crushing and burns!

During all work on and with the system (transport, installation, operation, shut-down,

maintenance, disposal) wear personal safety

equipment (safety helmet, protective gloves, safety shoes)!



WARNING

Hair and clothing can be pulled into the system or caught and wound up by moving parts!

Do not wear long, loose hair or loose-fitting clothes!

Use a hair net!



DANGER

Electrical danger!

Before beginning work on the system, the following measures must be carried out:

 Deenergise.  Secure against being switched on again.  Determine whether deenergised.  Ground and short-circuit.  Cover or block off adjacent energised parts.



DANGER

Electrical danger!

Work on electrical installations may be carried out by trained and authorised electricians only!



DANGER

Electrical danger!

Do not open the motor terminal box unless absence of electricity has been ensured!



WARNING

Danger from vacuum! Danger due to escaping fluid!

Relieve pressure or vacuum before beginning to work on the system!

Make sure that pipes/hoses and vessels to be opened have been relieved of pressure or vacuum and that no fluids might leak out before loosening any connectors and fasteners.



WARNING

Danger from vacuum! Danger due to escaping fluid!

Carry out the following tasks prior to commissioning, after every disassembly and reassembly and at regular intervals:

 Check pipe/hose connections, pipes/hoses

and vessels for sufficient strength, tightness and secure fixing!

 Check fasteners for secure seating!



WARNING

Danger from vacuum!

Do not operate the unit unless the pipe / hose has been fitted to the inlet connection!

In particular, do not look into the inlet connection or move your eyes in front of the inlet connection opening if the system might start up and generate a vacuum!



WARNING

Danger due to rotating parts!

Only operate the system when fully assembled:

 with hoses connected to inlet and discharge

connection as well as to operating liquid connection of installed unit

 with the pipes/hoses and fasteners of the

operating-liquid circuit mounted

 with cover plate and water cooler of

separator mounted.

Do not disassemble unless the system has been shut down and come to a complete standstill!

Consider that the system has a certain run-out!

Safety



WARNING

Danger due to rotating parts!

Do not reach into the installed unit through opened intake or discharge connection!

Do not insert objects into the installed unit through the openings!



WARNING

Danger of burns/scalding from hot fluids and hot surfaces of the installed unit!

Allow to cool after shut-down!

CAUTION

Danger from excessive pressure! Danger from system clogging!

Dirt can enter the system through the exhaustair connection! Clogging is possible!

Do not remove the protective cap from the discharge connection!

NOTICE

The pumped gases/vapours are expelled into the surrounding area via the exhaust-air connection. They are not directed through a pipe or a hose.

If delivery-side piping is desired:

Enquiry with Service is absolutely necessary!



WARNING

Danger from caustic or toxic fluids!

In case of corrosive of toxic fluids (operating liquid, pumped gases/vapours):

Enquiry with Service is absolutely necessary!

Wear appropriate personal protective equipment (protective gloves, safety goggles, respiratory protection) when working on or near the system.

If appropriate, attach appropriate warning sign(s) to the system, e.g. 'Warning! Corrosive materials!', 'Warning! Harmful or irritant material!' or 'Warning! Toxic material'.

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

1.3 Residual risks



WARNING

Danger zone:

Not surfaces of installed unit.

Hazard:

Burns/scalding possible.

Protective measures:

Attach warning sign "Warning! Hot surface!" .



WARNING

Danger zone:

External fan of installed unit.

Hazard:

Long, open hair may be drawn into the external fan of the installed unit with the cover plate and protective screen of the system removed!

Protective measures:

Wear hair net!

610.44444.40.000 6 / 36 © Gardner Denver Deutschland GmbH

Intended Use

2 Intended Use

These operating instructions

 apply to vacuum pumps of the L-BL2 series,

models 2BL2 041, 2BL2 061, 2BL2 101, 2BL2 141, 2BL2 251, 2BL2 281 and 2BL2 341

 contain instructions bearing on transport and

handling, installation, commissioning, operation, shut-down, storage, servicing and disposal of the L-BL2,

 must be completely read and understood by

all operating and servicing personnel before beginning to work with or on the L-BL2,

 must be strictly observed,  must be available at the site of operation of

the L-BL2.

 exist in the following designs:

– 2BL2 041 – 2BL2 061 – 2BL2 101 – 2BL2 141 – 2BL2 251 – 2BL2 281 – 2BL2 341

 are oil-free and non-contacting units.  are air-cooled units.  are intended for industrial applications.  are designed for continuous operation.

When operating the L-BL2, the limits listed in Chapter 3, "Technical Data", Pg. 8 ff. must always be complied with.

Foreseeable Misuse

About the operating and servicing personnel of the L-BL2:

 These persons must be trained and

authorised for the work to be carried out.

 Work on electrical installations may be carried

out by trained and authorised electricians only.

The L-BL2s

 are systems for generating a vacuum.  contain a liquid-ring vacuum pump of the L-

BV7 series, model 2BV7 or L-BV5, model 2BV5 (in the following referred to as "unit"), which is installed in a liquid separator (in the following referred to as "separator").

 are used to extract, transport and compress

the following pumped gases/vapours:

– all dry and moist gases,

which are not explosive, aggressive or toxic,

– preferably air or air/vapor mixtures. – For gases/vapours that differ, an enquiry

must be made with the Service Department.

 are designed for operation with the following

operating liquids:

– with a pH of 6 to 9,

which is free of solid materials (such as sand),

– usually normal tap water. – If the pH values or operating liquids differ,

it is necessary to contact the Service Department.

 release gases with the following properties

into the environment during operation:

– discharge temperature  ambient

temperature,

– discharge pressure  ambient pressure, – absolutely clean and dust-free.

It is prohibited

 to use the L-BL2 in non-industrial applications,

unless the necessary protection is provided on the system, e.g. guards suitable for children's fingers,

 to use the device in rooms in which explosive

gases can occur if the S _200 is not expressly intended for this purpose,

 to extract, to deliver and to compress

explosive, flammable, corrosive or toxic fluids, unless the S _200 is specifically designed for this purpose,

 to operate the L-BL2 with values other than

those specified in Chapter 3, "Technical Data", Pg. 8 ff.

Any unauthorised modifications of the L-BL2 are prohibited for safety reasons. Maintenance and repair work by the operator are only permitted in the scope described in these operating instructions. Any maintenance and repair work going beyond this may only be conducted by companies authorised by the manufacturer (enquiry with the Service Department necessary).

This especially applies to the unit installed in the L-BL2 (liquid-ring vacuum pump of the L-BV7 series, model 2BV7 or L-BV5, model 2BV5): The installed unit may be neither removed nor dismantled! any maintenance and repair work, such as replacing worn or defective components, may only be carried out by companies authorised by the manufacturer (please contact the Service Department).

Technical Data

3 Technical Data

3.1 Mechanical data

Weight

(when not filled with water)

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

Weight

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

Filling capacity of separator

Filling capacity for operating

Type

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(Normal tap water should usually be used as operating liquid.)

38 83.8

55 121

68 150

105 232

195 430

210 463

225 496

(when filled with water)

61 134

97 214

110 243

161 355

290 640

305 673

320 706

liquid

max.

[l]

max.

[gal(US)]

max.

[gal(UK)]

23 6.08 5.06

42 11.1 9.24

56 14.8 12.3

94 24.8 20.7

Filling capacity for antiliming

agent

Type approx. [kg] approx. [lbs]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

2 4.41

4 8.82

5 11

8 17.6

(Use pure granulated citric acid as antiliming agent. The specified filling quantities for citric acid refer to the medium filling of the separator with operating liquid.)

Filling quantity of installed unit

Filling quantity for anti-corrosive

agent

Type [l] [gal (US)] [gal (UK)]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

0.6 0.159 0.132

1.0 0.264 0.220

5.5 1.453 1.210

6.3 1.664 1.386

7.0 1.849 1.540

(To ensure sufficient protection, the entire interior of the installed unit must be filled with anticorrosive agent. Use only anti-corrosive agent based on ethylene glycol without additives, e.g. Antifrogen from Hoechst!)

Filling quantity for antiliming

liquid

Type [l] [gal (US)] [gal (UK)]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

0.6 0.159 0.132

1.0 0.264 0.220

5.5 1.453 1.210

6.3 1.664 1.386

7.0 1.849 1.540

(Use 10 % ethanoic acid as antiliming liquid.)

610.44444.40.000 8 / 36 © Gardner Denver Deutschland GmbH

Technical Data

Minimum distances for heat dissipation

Minimum distance A Type [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

≥ 0.5 ≥ 1.64

≥ 0.7 ≥ 2.30

≥ 0.8 ≥ 2.60

≥ 1.0 ≥ 3.28

Minimum distance B Type [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

≥ 1.4 ≥ 4.59

≥ 1.6 ≥ 5.25

≥ 1.8 ≥ 5.90

≥ 1.9 ≥ 6.23

Type Minimum distance C [m] [ft]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

≥ 0.4 ≥ 1.31

(The dimensions are shown in Fig. 3, Pg. 13.)

Spacing of securing eyes

Distance D Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

360 14.2

495 19.5

585 23

715 28.1

Distance E Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

(The dimensions are shown in Fig. 3, Pg. 13.)

345 13.6

450 17.7

570 22.4

755 29.7

Distance F Type [mm] [inches]

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

--- ---

225 8.9

285 11.2

377 14.8

(The dimensions are shown in Fig. 3, Pg. 11.)

Noise level

Measuring-surface sound-pressure level as per EN ISO 3744, measured at 1 m [3.28 ft] distance with moderate throttling (100 mbar abs. [1.45 psia]) and connected lines, tolerance  3 dB (A).

1-m measuring-surface sound

pressure level L [dB (A)]

Type at 50 Hz: at 60 Hz:

2BL2 041

2BL2 061

2BL2 101

2BL2 141

2BL2 251

2BL2 281

2BL2 341

Operating speed

See rating plate.

Tightening torques

for screws (Fig. 1, Pg. 3)

Pos.: Thread [Nm] [ft lbs]

005 2.7 - 3.3 1.99 - 2.43

007 2.7 - 3.3 1.99 - 2.43

012 E-JOT4 0.72 - 0.88 0.53 - 0.65

Technical Data

Tightening torques

for screws (Fig. 1, Pg. 3)

Pos.: Thread [Nm] [ft lbs]

019 M8 13.5 - 16.5 9.96 - 12.2

019 M10 21.6 - 26.4 15.9 - 19.5

023 M8 8.1 - 9.9 6.0 - 7.3

023 M10 13.5 - 16.5 9.96 - 12.2

025 2.7 - 3.3 1.99 - 2.43

030 M6/M8 8.1 - 9.9 6.0 - 7.3

032 E-JOT5 1.1 - 1.3 0.8 - 0.96

032 M6 4.5 - 5.5 3.3 - 4.05

057 St 4,2 2.7 - 3.3 1.99 - 2.43

060 M6 2.7 - 3.3 1.99 - 2.43

066 E-JOT4 0.72 - 0.88 0.53 - 0.65

G¼

2.25 - 2.75 1.66 - 2.0

E G⅜ 6.3 - 7.7 4.65 - 5.68

Clamps 2.7 - 3.3 1.99 - 2.43

The values specified here for tightening torques apply unless other values are indicated.

Tightening torques for screw

connections (in general)

Thread

M10

M12

M16

Property

classes

[Nm] [ft lbs]

5.6 1.26 - 1.54 0.93 - 1.14

5.6 2.7 - 3.3 1.99 - 2.43

8.8 7.2 - 8.8 5.3 - 6.5

8.8 18 - 22 13.3 - 16.2

8.8 36 - 44 26.6 - 32.5

8.8 63 - 77 46.5 - 56.8

5.6 90 - 110 66.4 - 81.1

(These values apply to screw connections with the exception of electrical connections.)

Tightening torques for electrical

connections (terminal board-

connections)

Thread [Nm] [ft lbs]

M10

0.9 - 1.1 0.66 - 0.81

2.0 - 2.4 1.47 - 1.77

2.7 - 3.3 1.99 - 2.43

6.3 - 7.7 4.65 - 5.68

10 - 12 7.34 - 8.85

These values for electrical connections apply to all terminal board connections with the exception of terminal strips.)

3.2 Electrical data

See rating plate on separator water cooler.

3.3 Operating conditions

Default conditions

Ambient temperature

Ambient pressure

Air saturation

+20 °C +68 °F

101.3 kPa 14.7 psi

50 %

Temperatures

Temperatures of pumped gases/vapours

Intake temperature

Delivery temperature

max. +60 °C max. +140 °F

 Ambient temperature

Temperature of operating liquid

max. +60 °C max. +140 °F

Ambient temperature

max. +40 °C max. +104 °F

min. +10 °C min. +50 °F

With ambient temperature < 10 °C (< 50 °F): Observe yellow adhesive label on cover plate. Add ethylene glycol to operating liquid in separator accordingly.

Pressures

Inlet pressure

min. 5 kPa abs. min. 0.725 psia

max. 80 kPa abs. max. 11.6 psia

At inlet pressures > 35 kPa abs. [5.08 psia], the share of water vapour in the escaping gases may be slightly above that of the gases sucked in. The resulting water loss can automatically be compensated by a feed regulator (see Chapter 5.5, "Accessories", Pg. 19).

It is prohibited to connect piping to the discharge side of the system!

Discharge pressure

approx. 101.3 kPa approx. 14.7 psi

 Ambient pressure

610.44444.40.000 10 / 36 © Gardner Denver Deutschland GmbH

4 Transport and Handling



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!



WARNING

Danger from tipping or falling loads!

Prior to transport and handling make sure that all components are securely assembled and secure or remove all components the fasteners of which have been loosened!

Manual handling:

Transport and Handling

Transport with a crane and lifting belts, with forklift truck or with low-lift platform truck.



WARNING

Danger from lifting heavy loads!

Manual handling of the unit is only permitted within the following limits:

 max. 30 kg [max. 66 lbs] for men  max. 10 kg [max. 22 lbs] for women  max. 5 kg [max. 11 lbs] for pregnant women

For the weight of the system, see Chapter 3.1, "Mechanical data", Section "Weight", Pg. 8.

Above these limits, suitable lifting equipment and/or means of transport must be used!

Transport with lifting equipment:



WARNING

Danger from tipping or falling loads!

When transporting with lifting equipment, observe the following basic rules:

 Use only suitable lifting gear (e.g. belts or

ropes) and means of transport (e.g. forklift truck, low-lift platform truck, crane).

 The lifting capacity of lifting equipment and

lifting gear must be at least equal to the system's weight. For the weight of the system, see Chapter 3.1, "Mechanical data", Section "Weight", Pg. 8.

 The system must be secured so that it

cannot tip or fall.

 Do not stand or walk under suspended

loads!

Fig. 2: Attachment points

Attach the strap belts as shown in Fig. 2, Pg. 11:

 Use two lifting belts routed along below the

system.

 The lifting belts should be securely seated in

the recesses shaped into the lower edges (two on each of the long sides) of the system so as to prevent the system from slipping out of them.

 The lifting belts must be sufficiently long

(spread angle smaller than 90°).

 Make sure that no damage is caused to any

attached fittings.

Installation

5 Installation



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

5.1 Installation



CAUTION

Danger of crushing from system tipping over!

CAUTION

Danger of damage to the system due to overheating!

When installing the system, make sure that heat dissipation and cooling are not obstructed. The minimum distances specified in Chapter 3.1, "Mechanical data", Section "Minimum distances for heat dissipation", Pg. 9 must be complied with.

Discharge air of other machines/devices may not be directly sucked in again!



WARNING

Danger from system tipping over or falling!

If the system is installed on moveable machine parts or at a great height without any other

protection against falling down, it must by all means be bolted to the bearing surface via the

securing eyes in its feet.

NOTE

In the unmounted state, the system can easily tip due to its weight distribution!

Wear gloves and safety shoes! Handle the system with the appropriate care!



CAUTION

Danger of tripping and falling!

Make sure the system does not present a danger of tripping! Block off the system with a guard fence or mark with red-and-white tape etc. if necessary.



WARNING

Electrical danger!

The system must be installed so that the electrical device cannot be damaged by external influences!

In particular, the feed pipes must be securely routed, e.g. in cable ducts or in the floor.

Note on later transport!

Install the system with the feet on strips or similar supports to simplify transport later, e.g. with a low-lift platform truck!

Space requirement and minimum distances:

The space requirement and positioning of the hole for installing and securing the system are shown in Fig. 3, Pg. 11.

 For minimum clearances for heat dissipation

and cooling, see Chapter 3.1, "Mechanical data", Section "Minimum distances for heat dissipation", Pg. 9.

 Spacing of securing eyes:

see Chapter 3.1, "Mechanical data", Section "Spacing of securing eyes", Pg. 9.

610.44444.40.000 12 / 36 © Gardner Denver Deutschland GmbH

Installation

1 2

Fig. 3: Minimum distances for heat dissipation and spacing of securing eyes

A – C: Minimum clearance for heat dissipation D – F: Spacing of securing eyes

See Chapter 3.1, "Mechanical data", Pg. 8 for dimensions.

Installation conditions:

The system must be installed as follows:

 on flat, level surfaces,  on stationary (fixed) surfaces or structures,  with the feet facing downward (no ringing off,

e.g. with the feet on the wall),

 at a maximum height of 1000 m [3280 ft]

above sea level. At installation altitudes of more than 1,000 m [3,280 ft] above sea level, the Service Department must be consulted.

1 Cooling air inlet

2 Cooling air outlet 3 Wall

The points on the system for measuring the vibration speed are shown in Fig. 4, Pg. 13.

33 3

Observe the following when installing the system:

 The load-bearing capacity of the installation

surface must at least be designed for the weight of the system.

 The vibration behaviour at the operating

location must be taken into account.

The total vibrations of the system are dependent on the following factors:

– the characteristic vibrations of the system,

– the alignment and installation,

Fig. 4: Points for measuring the vibration speed

– the condition (vibration behaviour) of the

load-bearing surface,

– the influences by vibrations of other parts

and system components (external vibrations).

The maximum permissible value for vibrations is v

= 4.5 mm/s [0.177"/s].

eff

To ensure proper operation and a long service life of the system, this value may not be exceeded. Generally, this value can be adhered to without a special foundation or a special base plate.

Installation

Securing:

There are two options:

 Install the system without securing. OR

 Screw the feet of the system to the surface

with suitable fasteners.

– Models 2BL2 041 - 141:

Screws 4 x M10 Washers as per ISO 7093-1 Tightening torque: 10 Nm [7.38 ft lbs]

– Models 2BL2 251 - 341:

Screws 4 x M12 Washers as per ISO 7093-1 Tightening torque: 20 Nm [14.81 ft lbs]



CAUTION

With the 2BL2 341 the 4 adjustment screws of the hexagonal feet (see Fig. 1, Pg. 3) and the 3 strips of the separator must make contact over the entire contact surface on the floor or the raised sections.

5.2 Electrical connection (motor)



DANGER

Electrical danger!

Improper behaviour can result in severe injuries and damage!



DANGER

Electrical danger!

The electrical connection may be carried out by trained and authorised electricians only!



DANGER

Electrical danger!

Before beginning work on the system, the following measures must be carried out:

 Deenergise.  Secure against being switched on again.  Determine whether deenergised.  Ground and short-circuit.  Cover or block off adjacent energised parts.



DANGER

Electrical danger!

Replace loose connections, singed or burned cables immediately!



DANGER

Electrical danger!

Lay the electrical connecting cables so that they cannot be damaged by external influences and are free from tensile stress!



WARNING

Danger due to gauge pressure and vacuum! Danger due to escaping fluid!

Before beginning work on the system or line:

 Interrupt supply of operating liquid.  Vent lines (depressurise).

CAUTION

Incorrect connection of the motor can lead to serious damage to the system!

Regulations: The electrical connection must be carried out as follows:

 according to the applicable national and local

laws and regulations,

 according to the applicable system-dependent

prescriptions and requirements,

 according to the applicable regulations of the

utility company.

Electrical power supply:

Observe the rating plate. It is imperative that the operating conditions correspond to the data given on the rating plate!

Deviations permissible without reduction in performance:

 ±5 % voltage deviation  ±2 % frequency deviation

Fit connecting cable:

 Use a flexible cable as the electrical

connecting cable.

 Open system:

Remove cover plate.

610.44444.40.000 14 / 36 © Gardner Denver Deutschland GmbH

Fig. 5: Remove cover plate: Unscrew screws

Insert the connecting cable:

Thread the connecting cable into the cord grips on the side panel of the separator and push it through the cable inlet into the interior of the separator.

Route the connecting cable into the terminal box of the installed unit via the cable entry opening.

 In order to relieve strain, secure the

connecting cable as follows:

– via the cable gland on the terminal box of

the installed unit

– via the cord grips on the outside of the

separator

– Tightening torques: see Chapter 3.1,

"Mechanical data", Section "Tightening torques", Pg. 9.

Installation

Fig. 6: Strain relief: Cord grips on the outside of the separator

Connection to drive-motor terminal box:

Carry out the connection and the arrangement of the jumpers in accordance with the circuit diagram in the terminal box.

Connect the protective conductor to the terminal with the following symbol:

The electrical connection must be carried out as follows:

 The electrical connection must be

permanently safe.

 There may be no protruding wire ends.  Clearance between bare live parts and

between bare live parts and ground: ≥ 5.5 mm [0.217"] (at a nominal voltage of UN ≤ 690 V).

 Tightening torques for terminal plate

connections: see Chapter 3.1, "Mechanical data", Section "Tightening torques", Pg. 9.

 Use suitable cable lugs.  For terminals with clamping straps, the

conductors must be inserted so that approximately the same clamping height results on both sides of the bar. Individual conductors must therefore be bent into a U-shape or connected with a cable lug.

 All conductors under outer angled grounding

brackets must be bent into a "U" shape.

Installation

This also applies to:

 the protective conductor,  the outer ground conductor.

Both conductors can be recognised from their colour (green/yellow).



WARNING

Electrical danger!

Clearance between bare live parts and between bare live parts and ground:

at least 5.5 mm [0.217"] (at a nominal voltage

of V

≤ 690V)

Make sure there are no protruding pieces of wire!



WARNING

Electrical danger!

The terminal box must be free from

 foreign bodies,  dirt,  humidity.

Terminal box cover and cable entries must be tightly closed so as to make them dustproof and waterproof.

Check for tightness at regular intervals.

For motor overload protection:

 Use motor circuit breakers.  Set the motor circuit breakers to the nominal

current specified on the rating plate.

 We recommend using slow-acting motor

circuit breakers.

Close system:

 Fit cover plate.



WARNING

Danger from rotating external fan of installed unit!

CAUTION

If the installed unit is run dry, the mechanical seal will be destroyed in a matter of seconds!

DO NOT switch on until the following conditions are met:

 The separator must be correctly filled with

operating liquid.

 The interior of the installed unit must be

filled with operating liquid.

Check direction of rotation:

 Make sure that the following conditions are

met:

– The separator must be correctly filled with

operating liquid (watch fill level indicator).

– The interior of the installed unit must be

filled with operating liquid.

– The separator cover plate must be

mounted.



WARNING

Danger from vacuum!

If there is a danger that the system could suck in:

 Do not go near the inlet connection with

long, open hair or loose fitting clothing,

 Do not look into the inlet connection or

move your eyes in front of the inlet connection opening.

 Do NOT connect the intake line to the inlet

connection yet.

 Briefly turn power ON.

If the rotating direction is correct, cooling air immediately exits from the protective screen.

 Turn power OFF again.  If necessary, reverse the direction of rotation

of the motor.



WARNING

Only operate the system with the protective screen and cover plate installed!

Malfunctions can result in serious damage and injuries!

In case of conspicuous irregularities which indicate malfunctions, take the following measures:

 If in doubt, shut off the operating

materials concerned immediately!

 Determine cause immediately and

eliminate!

Also see Chapter 9, "Servicing", Pg. 25.

610.44444.40.000 16 / 36 © Gardner Denver Deutschland GmbH

5.3 Filling



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Only operate the system

 for the purposes indicated under "Intended

Use"!

 with the fluids specified under "Proper use"!  with the values indicated under 'Technical

Data'!



WARNING

Danger from caustic or toxic fluids!

In case of corrosive of toxic fluids (operating liquid, pumped gases/vapours):

Enquiry with Service is absolutely necessary!

Wear appropriate personal protective equipment (protective gloves, safety goggles, respiratory protection) when working on or near the system.

If appropriate, attach appropriate warning sign(s) to the system, e.g. 'Warning! Corrosive materials!', 'Warning! Harmful or irritant material!' or 'Warning! Toxic material'.

Proceed as follows:

Installation

Fig. 8: Filling separator Models 2BL2 251 - 341 (via the filling opening)

Check the liquid level in the separator:

Check via the fill level indicator (Item 010). When doing so, watch the maximum operating liquid level.

NOTICE

Max. operating-liquid level:

Lower edge of the fill opening (Item 007) = level-indicator pointer at 1 (Item 010).

Do not fill the separator above this level!

Fill the separator:

Fill operating liquid (usually ordinary tap water) into the separator via the fill opening (Item 007),

Filling amount: See Chapter 3.1, "Mechanical data", Pg. 8.

Fig. 7: Filling separator Models 2BL2 041 - 141 (via the filling opening)

When the unit is filled for the first time: Fill installed unit:

Pour additional operating liquid into the inlet connection (Item A) of the system so that operating liquid flows into the interior of the installed unit.  Models 2BL2 041 - 2BL2 141:

1.5 l [0.396 gal (US); 0.330 gal (UK)]

 Models 2BL2 251 - 2BL2 341:

7.0 l [1.32 gal (US); 1.1 gal (UK)]

Installation

Fig. 9: Filling installed unit (via inlet connection)

CAUTION

If the installed unit is run dry, the mechanical seal will be destroyed in a matter of seconds!

DO NOT switch on until the following conditions are met:

 The separator must be correctly filled with

operating liquid.

 The interior of the installed unit must be

filled with operating liquid.



WARNING

Danger due to escaping fluid!

Make sure that all openings in the separator (feed/drain regulator connection, fill opening, drain opening) are tightly closed (by means of screwed-in bung plugs or installed feed regulator, drain regulator and drain valve) when the separator is filled with operating liquid.

5.4 Connection of pipes/hoses



WARNING

Danger from vacuum!

Do not operate the unit unless the pipe / hose has been fitted to the inlet connection!

If there is a danger that the system could suck in:

 Do not go near the inlet connection with

long, open hair or loose fitting clothing,

 Do not look into the inlet connection or

move your eyes in front of the inlet connection opening.



WARNING

Danger from vacuum! Danger due to escaping fluid!

During operation connected pipes and vessels are vacuumised!

Make sure that all connections are sufficiently tight! Use only pipes and vessels of sufficient strength!

The pumped gases/vapours are sucked in via

the inlet connection and discharged via the exhaust-air connection

(see Chapter 5.4.1, Pg. 18)

(see Chapter 5.4.2, Pg. 19).

5.4.1 Inlet connection Remove sealing plug

To prevent the penetration of foreign bodies, the connection opening on the inlet connection (Item A) is sealed off on delivery.

Do not remove the sealing plug until immediately before connecting the pipes/hoses.

Check valve:

In the following cases a check valve must be attached to the inlet connection (Item A):

 If two or more systems are operated in

parallel, e.g. reserve system. (Note: A separate check valve must be attached to the inlet connection on each system.)

 If a vacuum can occur for more than

one minute in the connected intake line on the

system switched off. The check valve prevents the backflow of pumped gases/vapours from the system during an interruption in operation.

610.44444.40.000 18 / 36 © Gardner Denver Deutschland GmbH

Connect the inlet pipe:

Installation

5.4.2 Exhaust-air connection

Connect the system-side line for the pumped gases/vapours (intake line) to the connecting piece of the inlet connection (Item 037).

2 3 1

Fig. 10: Connection of inlet line on connecting piece of inlet connection

1 Inlet line 2 Connection thread 3 Connecting piece

CAUTION

Danger of damage to connecting piece!

The connection thread on the connecting piece of the inlet connection is made of plastic, and can therefore easily be damaged.

Exercise the appropriate caution when connecting the inlet line.

The pumped gases/vapours are expelled into the surrounding area via the exhaust-air connection (Item B). They are not directed through a pipe or a hose. As a result, no assembly is required here.

CAUTION

Danger from excessive pressure! Danger from system clogging!

Do not remove the protective cap from the exhaust-air connection!

If delivery-side piping is desired:

Enquiry with Service is absolutely necessary!

5.5 Accessories

The following accessories are available according to our catalogue:

 Inlet Filter  Vacuum Control Valve  Feed Regulator  Outlet Regulator  Electrical Level Switch  Drain Valve

NOTICE

The tightening torque must always be adjusted to match the connection thread material.

NOTICE

Attach pipes/hoses free of mechanical tensions.

Support the weight of the pipes/hoses.

Fig. 11: Accessories

Commissioning

6 Commissioning



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!



WARNING

Danger from vacuum! Danger due to escaping fluid! Danger due to rotating parts!

The system may only be put into operation when the following conditions are met:

 The hoses on the inlet and discharge

connection and on the operating liquid connection of the installed unit are connected.

 The cover plate and the water cooler of the

separator are fitted.

 The lines and connection elements of the

operating liquid circuit are fitted.

 The line on the system inlet connection is

connected.

 The pipe/hose connections, pipes/hoses

and vessels have been checked for sufficient strength and freedom from leaks!

 The fasteners have been checked for

secure seating.

CAUTION

If the installed unit is run dry, the mechanical seal will be destroyed in a matter of seconds!

DO NOT switch on until the following conditions are met:

 The separator must be correctly filled with

operating liquid.

 The interior of the installed unit must be

filled with operating liquid.

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

6.1 Preparation and start-up

Proceed as follows:

 Make sure that the following conditions are

met:

– The separator must be correctly filled with

operating liquid. (watch fill level indicator).

– The interior of the installed unit must be

filled with operating liquid.

– The separator cover plate must be

mounted.

 Turn power ON.  The system begins to intake the pumped

gases/vapours.

NOTE

If, on being put into service for the first time, the system does not generate a vacuum:

briefly throttle or close and reopen the inlet side.

6.2 Shut-down

Generally speaking, the system may be shut down in any operating condition (i.e. regardless of the actual pressure, temperature, etc.). Take into consideration, however, whether the process of your line allows for interrupting the operation of the system.

Proceed as follows:

 Turn power OFF.  The system interrupts the intake of the

pumped gases/vapours.

In case the unit is not to be put into service again for an extended period of time: observe the instructions in Chapter 8, "Shutting Down and Longer Standstill", Pg. 23.

610.44444.40.000 20 / 36 © Gardner Denver Deutschland GmbH

7 Operation

Start-up and shut-down in normal operation is identical to the procedure for commissioning.



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!

Also be sure to read the safety precautions in

Chapter 6, "Commissioning", Pg. 20!

NOTE

Position

STANDARD

Position

HIGH VACUUM

Fig. 12: 3-way valve (only 2BL2 041 - 141)

7.2.1 Loss of operating liquid

Operation

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

7.1 Start-up and shut-down

See:

 Chapter 6.1, "Preparation and start-up",

Pg. 20.

 Chapter 6.2, "Shut-down", Pg. 20.

7.2 Operation within the process

Continuous operation at maximum vacuum/minimum inlet pressure (with the inlet valve closed) is possible. The power consumption of the system is at its lowest in this case.

In case of no-load operation we recommend operation at minimum inlet pressure (lowest power consumption).

The following applies to models 2BL2 041 - 2BL2 141: during operation at low inlet pressures ( 20 kPa abs. [2.90 psia]), the pumping capacity of the system can be increased by switching over the 3-way valve (Fig. 1, Pg. 3, Item G) to the HIGH VACUUM position. (Also see Fig. 12, Pg. 21).

During operation at inlet pressures  20 kPa abs. [2.90 psia], this valve position can lead to the formation of splash water on the exhaust-air connection. Switchover is not required for the models 2BL2 251 - 2BL2 341.

At a low humidity and a high inlet pressure

(> 35 kPa abs. [5.08 psia]), the water vapour content in the escaping gases is slightly above that of the gases sucked in. This results in a

slight loss of operating liquid.

NOTICE

Check the operating-liquid level in the separator regularly by means of the level indicator!

NOTICE

Do not operate the system with the operating

liquid level with the pointer in the 0 position!

Liquid level with pointer in 0 position: At a liquid level with the pointer in the 0

position, the pumping capacity of the system will

be reduced. During longer operation under these conditions, this leads to a dip in the vacuum and may ultimately result in the system running dry!

When the pointer is in the 0 position (minimum), take the following measures:

 Interrupt system operation.

See Chapter 6.2, "Shut-down", Pg. 20.  Pour operating liquid into the separator via the

filling opening (up to pointer position 1 (lower

edge of the filling opening)).

Operation

NOTICE

Max. operating liquid level:

Lower edge of the filling opening = level-indicator pointer at 1.

Do not fill the separator above this level!

Feed regulator:

In case of operating liquid loss, a feed regulator (see Chapter 5.5, "Accessories", Pg. 19) can be connected with which the liquid level is automatically compensated.

7.2.2 Increase in operating liquid In case of high air saturation and low inlet

pressure, the water vapour content of the

discharge gases is slightly below that of the inlet

gases. This results in a slight increase in operating liquid.

Also, water entrained via the inlet pipe will result in an increase in operating liquid.

NOTICE

Check the operating-liquid level in the separator regularly by means of the level indicator! Overfilling cannot be checked via the fill level indicator!

NOTICE

Do not operate the system with the operating

liquid level above pointer position 1!

Outlet regulator:

In case of operating liquid increase, a drain regulator (see Chapter 5.5, "Accessories", Pg. 19) must be connected with which the liquid level is automatically compensated.

610.44444.40.000 22 / 36 © Gardner Denver Deutschland GmbH

8 Shutting Down and Longer

Standstill



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

8.1 Draining

Shutting Down and Longer Standstill

 Remove the cover plate (Item 064) and

protective grille (Item 058) from the separator.

 Have a suitable catch container ready.  Open the following drain openings (see Fig. 1,

Pg. 3):

– Drain opening on separator

(Item 005)

– Drain cooler

(Item. F)

– Drain installed unit

(Item E)

 Allow the liquid to drain out.  Close all drain openings again.

(Tightening torques: see Chapter 3.1,

"Mechanical data", Section "Tightening

torques", Pg. 9.  Remount the cover plate (Item 064) and

protective grille (Item 058) on the separator.

8.2 Preparing for longer shut-down



DANGER

Electrical danger!

Before beginning work on the system, the following measures must be carried out:

 Deenergise.  Secure against being switched on again.  Determine whether deenergised.  Ground and short-circuit.  Cover or block off adjacent energised parts.



DANGER

Before a longer shut-down (from approx. 4 weeks) or in case of frost danger, proceed as follows:

 Drain system as described in Chapter 8.1,

"Draining", Pg. 23.  Have the cover plate (Item 064) and

protective grille (Item 058) removed from the

separator.  Models 2BL2 041 - 2BL2 141:

Disconnect pipe/hose from screw-in

connecting sleeve (Item H) of installed unit.

Models 2BL2 251 - 2BL2 341:

Disconnect pipe/hose from condensation

cooler (Item 031).

To remove the pipe/hose, open the clip with

Electrical danger!

Work on electrical installations may be carried out by trained and authorised electricians only!



WARNING

special pliers or a screwdriver.  Choose a suitable preservative.

Use only anti-corrosive agent based on

ethylene glycol (e.g. Antifrogen from

Hoechst).  Pour the preservative into the open screw-in

connecting sleeve (Item H) using a funnel or

Danger from vacuum! Danger due to escaping fluid!

Before beginning work on the system or line:

 Interrupt supply of operating liquid.  Vent lines (depressurise).

 Shut down system and disconnect mains

plug.

 The above safety precautions apply when

working on the system or line.

 If the feed regulator is installed:

Shut off the feed pipe. Remove the feed regulator.

hose. (See Fig. 13, Pg. 24.)

Filling amount: see Chapter 3.1, "Mechanical

data", Section "Filling quantity for anti-

corrosive agent", Pg. 8. The entire interior of

the installed unit must be filled with anti-

corrosive agent.

 During filling turn the cooling fan by hand by

approx. one turn.

 Reconnect the disconnected pipe/hose.  Remount the cover plate (Item 064) and

protective grille (Item 058) on the separator.  You have two options for the standstill:

Either the system remains connected in the

line,

or the system is removed for storage.

Shutting Down and Longer Standstill

Fig. 13: Pouring preservative/antiliming liquid into installed unit (for models 2BL2 041 - 2BL2 141)

To prevent standstill damage during storage, the environment must provide the following conditions:

 dry,  dust-free,  low-vibration (effective value of vibration

speed v

≤ 0.2 mm/s [0.008"/sec]).

eff

Take the following measures for commissioning following a longer standstill:

 Measure the insulation resistance of the

motor.

In case of values ≤ 1kΩ per volt of nominal

voltage, dry winding.  Drain off the anti-corrosive agent via the drain

opening of the installed unit, as described in

Chapter 8.1, "Draining", Pg. 23.

Dispose of preservative in accordance with

the manufacturer's specifications.

 Then clean the system:

Pour operating liquid into the system via the

filling opening (Fig. 1, Pg. 3, Item 007).

If appropriate, Briefly operate the system to

circulate the operating liquid in the system.

See Chapter 6.1, "Preparation and start-up",

Pg. 20.

Switch off the system again. See Chapter 6.2,

"Shut-down", Pg. 20.

Drain the system. See Chapter 8.1,

"Draining", Pg. 23.

 For new systems:

Install the system as described in Chapter 5,

"Installation", Pg. 12.

Commission the system as described in

Chapter 6, "Commissioning", Pg. 20.

 For systems that are already installed in a

line:

Commission the system as described in

Chapter 6, "Commissioning", Pg. 20.



DANGER

Electrical danger!

Work on electrical installations may be carried

Fig. 14: Pouring preservative/antiliming liquid into installed unit (for models 2BL2 251 - 2BL2 341)

8.3 Storage conditions

This chapter applies in the following cases:

 New systems,  Systems that are already installed in a system

out by trained and authorised electricians only!



WARNING

Danger of slipping due to escaping operating liquid!

When draining the system, operating liquid will be discharged downward via the opening in the bottom of the separator. Have a catch container ready under the system.

and were prepared for a longer standstill, as described in Chapter 8.2, "Preparing for longer shut-down", Pg. 23.

Servicing

9 Servicing



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Have you read the safety precautions in Chapter 1, "Safety", Pg. 4 f.? Otherwise you may not carry out any work with or on the system!



WARNING

Improper use of the system can result in serious or even fatal injuries!!

All maintenance work on the system must always be performed by the Service Department!

Maintenance work on the system may only be conducted by the operator itself when the

related maintenance manual on hand!

Inquire with the Service Department!



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Do not disassemble unless the system has been shut down and come to a complete standstill!

Consider that the system has a certain run-out!



WARNING

Cutting hazard!

Do not remove the protective grille from the water cooler!



DANGER

Electrical danger!

Before beginning work on the system, the following measures must be carried out:

 Deenergise.  Secure against being switched on again.  Determine whether deenergised.  Ground and short-circuit.  Cover or block off adjacent energised parts.



DANGER

Electrical danger!

Replace loose connections, singed or burned cables immediately!



DANGER

Electrical danger!

Work on electrical installations may be carried out by trained and authorised electricians only!



DANGER

Only the following components may be removed:

 The hoses on the inlet and discharge

connection and on the operating liquid connection of the installed unit

 The cover plate and the water cooler of the

separator

 The pipes/hoses and connection elements

of the operating-liquid circuit

 The line on the system inlet connection



WARNING

Danger from rotating impeller of installed unit!

The unit installed in the system may be neither removed nor dismantled!

Electrical danger!

Do not open the motor terminal box until absence of electricity has been ensured!



WARNING

Danger from vacuum! Danger due to escaping fluid!

Before beginning work on the system or line:

 Interrupt supply of operating liquid.  Vent lines (depressurise).



WARNING

Danger from rotating external fan of installed unit!

Only operate the system with the protective screen and cover plate installed!

Servicing



WARNING

Danger of burns and scalding from hot surfaces of the installed unit and from hot fluids!

Only operate the system with the protective screen and cover plate installed! Allow to cool after shut-down!



WARNING

Improper use of the system can result in serious or even fatal injuries!!

 Do not reach into the installed unit through

the opened intake or discharge connection!

 Do not insert objects into the installed unit

through the openings!



WARNING

Danger from tipping or falling loads!

If the system is installed on moveable machine parts or at a great height without any other protection against falling, the following applies:

 If the screw connection to the installation

surface is unscrewed for maintenance work, then the system must be placed on a flat, rigid (stationary) surface.

 If appropriate, secure the system against

falling from a great height.



WARNING

Improper use of the system can result in serious or even fatal injuries!!

Do not disassemble unless the system has been shut down and come to a complete standstill!

Consider that the system has a certain run-out!

Only restart when the following conditions are met:

 The system is completely assembled.  The pipe/hose connections, pipes/hoses

and vessels have been checked for

sufficient strength, freedom from leaks and

secure seating!  The fasteners have been checked for

secure seating!

NOTE

For the system design, see Fig. 1, Pg. 3. The item numbers (Item) specified in the text refer to this illustration.

9.1 Maintenance

The system is largely maintenance-free.

The following maintenance work is necessary:

 If limy water is used as the operating liquid,

the operating liquid must be softened or the

entire system and the installed unit must be

decalcified at regular intervals.  Check the hoses and hose connections for

any leaks and for firm seating!  If dirt or solid materials (e.g. dust or sand) of

lime deposits enter the system through the

operating liquid and/or the pumped

gases/vapours, it must be cleaned at regular

intervals. This will prevent impeller jamming

as well as the wear of individual system

components. Refer to the following table:

Contamination/Problem Remedy

Servicing

Water consumption increases considerably after an extended period of operation.

Ambient air is highly contaminated.

Dirt particles (e.g. dust) enter system with pumped gases/vapours and collect in separator.

Clean cooling fins of water cooler.

To do so, proceed as follows:  Carry out protective measures for the use of compressed air:

– wear personal protective equipment (protective gloves and safety

goggles),

– secure surrounding area.

 blow compressed air through cooling fins of water cooler (Item 027).

Replace water filter (Item 095) and air filter (Item 096).

Clean cooling fins of water cooler (Item 027) regularly. See "Water consumption increases considerably after an extended period of operation".

Clean separator.

Clean separator (Item 001) regularly (interval is dependent on concentration of dirt particles in pumped gases/vapours):

 Shut down system.  Drain system as described in Chapter 8.1, "Draining", Pg. 23.  Purge separator with clean water.  When using cleaning agents, you must consult Service Department.  If appropriate, Replace water filter (Item 095) and air filter (Item 096).

 Connect inlet filter (see Chapter 5.5, "Accessories", Pg. 19) upstream on

inlet side of system.

 If appropriate, Replace water filter (Item 095) and air filter (Item 096).

Fine-grain dirt (e.g. sand) enters installed unit with operating liquid or pumped gases/vapours.

Clean installed unit.

Clean installed unit (Item D) at regular intervals. (Intervals are dependent on degree of soiling, approx. 1x per year.) To do so, proceed as follows:

 Shut down system and secure against being switched on again.  Remove cover plate (Item 064) and protective grille (Item 058).  Have a catch container ready under the system.

 Open drain hole G¼ (Item E) of installed unit. Then operating liquid flows

out. It is discharged downward via the opening in the bottom of the separator.

 WARNING: Danger from rotating external fan of installed unit! To ensure

safety, remount the cover plate (Item 064) and protective grille (Item 058) on the separator!

 Briefly switch on system. Dirt will be flushed out of installed unit along

with operating liquid and will be discharged downward through opening in bottom of separator.

 Shut down system again, secure and open as described above.

 Close drain hole G¼ (Item E) of installed unit again.

 Completely reassemble system.

Servicing

Contamination/Problem Remedy

Impeller of installed unit is jammed.

Free shaft by turning.

To do so, proceed as follows:

 Shut down system and secure against being switched on again.  Remove cover plate (Item 064).  Turn shaft of installed unit (Item D) by hand at fan impeller.  If shaft cannot be freed by turning, installed unit must be decalcified.

Extremely hard water used as operating liquid Lime content > 15°dH).

Soften operating liquid.

Decalcify installed unit.

Decalcify installed unit (Item D) at regular intervals. (Intervals are depending on calcification.)

To do so, proceed as follows:

 Wear personal protective equipment (protective gloves and safety

goggles),

 Shut down system and secure against being switched on again.  Drain system as described in Chapter 8.1, "Draining", Pg. 23.  Have the cover plate (Item 064) and protective grille (Item 058) removed

from the separator.

 Models 2BL2 041 - 2BL2 141:

Disconnect pipe/hose from screw-in connecting sleeve (Item H) of installed unit. Models 2BL2 251 - 2BL2 341: Disconnect pipe/hose from condensation cooler (Item 031). To remove the pipe/hose, open the clip with special pliers or a screwdriver.

 Use 10 % ethanoic acid as antiliming liquid.

 WARNING: Danger from ethanoic acid! Ethanoic acid can cause heavy

acid burns! Observe applicable laws and regulations as well as accident prevention regulations concerning hazardous substances and manufacturer's safety data sheet!

 Fill interior of installed unit with antiliming liquid.

To do so, proceed as follows:

Pour antiliming liquid into the open screw-in connecting sleeve (Item H) using a funnel or hose. (See Fig. 13, Pg. 24.) Filling amount: see Chapter 3.1, "Mechanical data", Section "Filling quantity for antiliming liquid", Pg. 8. The entire interior of the installed unit must be filled with antiliming liquid.

CAUTION: Various system seals can be damaged by prolonged contact to ethanoic acid. The ethanoic acid may only enter the interior of the installed unit.

Contamination/Problem Remedy

Servicing

 Allow decalcifying liquid to soak for at least 30 minutes.  During this time occasionally turn shaft by hand at fan impeller.  Have a catch container ready under the system.  Drain installed unit:

Open drain hole G¼ (Item E) of installed unit. The antiliming liquid will be

discharged downward via the opening in the bottom of the separator. This will not cause chemical corrosion of the separator. Close the drain hole again.

 Reconnect pipe/hose to screw-in connecting sleeve (Item H) or to

condensation cooler (Item 031).

 Remount cover plate (Item 064) and protective grille (Item 058) on

separator.

 Completely reassemble system.  Antiliming liquid can be disposed of in sewerage system.

Decalcify the entire system.

Depending on the operating conditions and the lime content of the operating liquid, it may be necessary to decalcify the entire system. To do so, proceed as follows:

 Use citric acid as antiliming liquid.  Pour citric acid into system via filling opening (Item 007). Filling quantity

of pure citric acid (in the form of granules), the system being at a medium operating-liquid level: See Chapter 3.1, "Mechanical data", Section "Filling capacity for antiliming agent", Pg. 8.

 Operate system approx. 10 h with operating liquid with citric acid added.

Citric acid will dissolve lime in the process.

 Then drain system as described in Chapter 8.1, "Draining", Pg. 23.  Flush system several times with clean water.

9.2 Repairs/troubleshooting

NOTICE

NOTE

If the fault cannot be eliminated using the fault table etc., it is necessary to consult the Service Department.

During assembly, the tightening torques of the screws/bolts according to Chapter 3.1, "Mechanical data", Section "Tightening torques" Pg. 8, must be observed.

NOTICE

Have spare parts installed exclusively by the

Service Department!

Servicing

Fault Cause Remedy Carried out by

Motor does not start, no running noise.

Motor does not start, humming noises.

Protective motor switch trips when motor is switched on.

At least two power supply leads interrupted.

One power supply lead interrupted.

Impeller of installed unit is jammed.

Protective motor switch setting too low.

Winding shortcircuit.

Counter pressure at discharge connection too high.

Eliminate interruption by fuses, terminals or

Electrician

supply cables.

Eliminate interruption by fuses, terminals or

Electrician

supply cables.

Free shaft by turning.

Operator/Service See Chapter 9.1, "Maintenance", Section "Free shaft by turning", Pg. 28.

Decalcify installed unit.

Operator See Chapter 9.1, "Maintenance", Section "Decalcify installed unit", Pg. 28.

Set the protective motor switch to the rated

Electrician current indicated on the rating plate.

Have winding checked. Electrician/Servic

e Dept.

Check exhaust-air connection (Item B) and

Operator/Service condensation cooler (Item 031) for soiling.

Power consumption too high.

System does not generate vacuum.

Impeller of

See "Motor does not start, humming noises". Operator/Electrici

installed unit is jammed.

Lime or other deposits.

Decalcify installed unit. See Chapter 9.1, "Maintenance", Section "Decalcify installed unit", Pg. 28.

Decalcify entire system.

See Chapter 9.1, "Maintenance", Section "Decalcify the entire system", Pg. 29.

Clean installed unit.

See Chapter 9.1, "Maintenance", Section "Clean installed unit", Pg. 27.

Clean separator.

See Chapter 9.1, "Maintenance", Section "Clean separator", Pg. 27.

No operating liquid.

Fill in operating liquid via the fill opening (Item 007) as described in Chapter 5.3, "Filling", Pg. 17".

Severe leak in

Seal off leak in system. Operator

system.

Severe leak in

Seal off leak in system. Operator

system.

an/Service Dept.

Operator

Wrong direction of rotation.

Reverse direction of rotation by interchanging two connecting leads.

Electrician

Servicing

Fault Cause Remedy Carried out by

System generates insufficient vacuum.

System too small. Use larger system. Operator

Inlet pipe too long or of too small

Use shorter pipe or pipe of larger diameter for the inlet pipe.

Operator

diameter.

Hose connections on inlet side or

Check hose connections on the inlet side and inlet pipe and seal leak if necessary.

Operator

inlet pipe leaky.

Operating-liquid flow too low.

Check operating liquid pipe (Item 043) and operating liquid hole (Item J) of installed unit for

Operator/Service

clogging. If necessary, eliminate clogging.

Too little

Top up operating liquid. Operator

operating liquid in the separator.

Operating liquid too warm (nominal temperature:

Cooling fins of water cooler (Item 027) are soiled; clean. See Chapter 9.1, "Maintenance", Section "Clean cooling fins of water cooler", Pg. 27.

Operator

15°C).

Slight leak in the

Seal leak in the system. Operator

system.

Inlet filter

Replace inlet filter. Operator

(accessory) clogged.

Drops of water squirting out of discharge connection.

Vacuum control valve (accessory) incorrectly set.

longer drawn off.

Liquid level in the separator too high (level indicator  1).

Check and, if necessary, correct setting of the vacuum control valve.

Check air filter (Item 096) for clogging and clean or replace, if necessary.

Clean restrictor sleeves (Item 079 and 080). Proceed as follows:  Shut down system and secure against being

switched on again.

 Remove cover plate (Item 064) and protective

grille (Item 058).

 Detach the hose connections in question.  Clean restrictor sleeves (Item 079 and 080).  Blow compressed air through the hoses

leading to the condensation cooler (Item 031).

 Check hose connections on condensation

cooler (Item 031) for clear passage.

 Reassemble components.

If water is entrained via the inlet connection install automatic discharge regulator (accessory).

Check if feed regulator (accessory) works correctly.

Operator

Operator/Service Condensate is no

Operator/Service

Operator

Servicing

Fault Cause Remedy Carried out by

Major increase in water consumption compared to condition when new.

screeching noise.

Throttle valves are choked.

filter clogged.

Cooling fins of water cooler soiled.

Room temperature higher than permissible.

Cavitation of installed unit.

Clean restrictor sleeves (Item 079 and 080). See "Drops of water squirting out of discharge connection".

Replace air filter (Item 096) or water filter (Item 095).

Clean separator (Item 001) if necessary. See Chapter 9.1, "Maintenance", Section "Clean separator", Pg. 27.

Clean cooling fins of water cooler (Item 027). See Chapter 9.1, "Maintenance", Section "Clean cooling fins of water cooler", Pg. 27.

Enquire with Service Department. Operator/Service

Check connection of cavitation protection hole (Item K) and condensate pipe (Item 041) for clogging. See "Drops of water squirting out of discharge connection".

3-way valve (Item G) may not be accurately adjusted. Check position of the 3-way valve and correct, if necessary.

Operator/Service

Operator/Service Air filter or water

Operator

Operator/Service Abnormal

Operator

*) Only when the maintenance manual is at hand: rectification by the operator.

9.3 Service/After-sales service

Our Service is available for work (in particular the installation of spare parts, as well as maintenance and repair work), not described in these operating instructions (see front page of these operating instructions).

Observe the following when returning systems:

 Before shipping:

– Drain system completely as described in

Chapter 8.1, "Draining", Pg. 23.

– Clean system outside

(observe degree of protection according to rating plate when doing so)

 The system must be delivered complete, i.e.

not dismantled.

 Only the original packing should be used for

shipment.

 A declaration of clearance must be included

with the shipment, as described in Chapter 9.4, "Decontamination and Declaration of Clearance", Pg. 33.

 The original rating plate of the system must be

properly mounted, intact and legible. All warranty claims are voided for systems delivered for a damage expertise without the original rating plate or with a destroyed original rating plate.

 In case of warranty claims, the manufacturer

must be informed of the operating conditions, operating duration etc. and additional detailed information provided on request if necessary.

9.4 Decontamination and Declaration of Clearance

Disposal

A so-called Declaration of Clearance must be

included with each system that is given to a workshop for inspection, maintenance or repair.

The declaration of clearance

 is provided as a pre-printed form for

photocopying Pg. 35,

 is legally binding,  must be filled out and signed by authorised,

qualified personnel,

 must be issued for each system sent in (i.e. a

separate declaration for each system),

 must be attached outside on the packing of

the system,

 should be sent to as a copy by fax the

workshop conducting the work prior to shipment.

This ensures

 that the system has not come into contact with

dangerous substances,

 that a system that has come into contact with

dangerous substances has been sufficiently decontaminated,

 that the inspection, maintenance or repair

personnel can take the required protective measures if necessary.

NOTICE

The inspection/maintenance/ repair of the system at the workshop will not be begun until the declaration of clearance has been received!

If the declaration of clearance is not included with the shipment, delays may result!



WARNING

Danger from flammable, caustic or toxic

10 Disposal

substances!

To protect the environment and persons, the following applies:

Systems which have come into contact with

dangerous substances must always be

decontaminated before being passed on to a workshop!

Have the entire system scrapped by a suitable disposal company. No special measures are required when doing so.

For additional information on disposing of the system, ask the Service Department.

EU declaration of conformity

Manufacturer:

Gardner Denver Deutschland GmbH P.O. Box 1510 D-97605 Bad Neustadt / Saale

Responsible for documentation:

Holger Krause P.O. Box 1510 D-97605 Bad Neustadt / Saale

Designation:

L Series Liquid ring vacuum pump

L-BL2

Types 2BL2 041, 2BL2 061, 2BL2 141,

2BL2 251, 2BL2 101, 2BL2 281, 2BL2 341

The liquid ring vacuum pump described above meets the following applicable Community harmonisation legislation:

2006/42/EC

Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC

The protection targets of the directive 2006/95/EC have been met

Harmonised standards applied: EN 1012-1:1996

EN 1012-2:1996

Compressors and vacuum pumps — Safety requirements — Part 1: Compressors

Compressors and vacuum pumps — Safety requirements — Part 2: Vacuum pumps

Bad Neustadt/Saale, 29.12.2009

(Place and date of issue)

ppa. Fred Bornschlegl

(Name and function) (Signature)

664.44444.40.000

Form for statement on safety

Statement on health safety and on the protection of the environment

 For the safety of our employees and to comply with statutory requirements on handling substances

harmful to the health and the environment, this statement must be enclosed, fully completed, with

each unit/system sent.

 Without the fully completed statement, repair/disposal is not possible and delays are

unavoidable!

 The statement is to be completed and signed by suitably qualified, authorised personnel at the

operating organisation.

 In the case of shipment to Germany, the statement is to be completed in German or English.  The statement is to be attached to the outside of the packing on shipment.  If necessary, the carrier is to be informed.

1. Product designation (type):

2. Serial number (no. BN):

3. Reason for sending:

4. The unit/system

has not come into contact with hazardous substances. There will be no hazards for personnel or the environment during repair/disposal. Continue with "6. Legally binding statement“

has come into contact with hazardous substances. Continue with "5. Information on the contamination“

5. Information on the contamination

(if necessary provide more information on an additional sheet)

The unit/system was used in the following application:

and has come into contact with the following classifiable substances or substances presenting a hazard to health/environment:

Trade name: Chemical designation:

Hazardous substance class:

Properties (e.g. toxic, inflammable, caustic, radioactive):

The unit/system has been emptied in accordance with the operating instructions, flushed and cleaned externally.

Safety data sheets in accordance with the applicable regulations are enclosed ( sheet).

The following safety precautions are necessary for handling (e.g. personal protective equipment):

6. Legally binding statement

I herewith guarantee that the details specified are true and complete and that I, as signatory, am in a position to judge that this is so. We are aware that we are liable to the contractor for any damages arising from incomplete or incorrect specifications. We are obliged to indemnify the contractor against claims for damages by third parties arising from incomplete or incorrect specifications. We are aware that, irrespective of this statement, we are directly liable to third parties - in particular including the contractor's employees tasked with repair/disposal.

Company/institute:

Name, position: Phone:

Street: Fax:

Post code, city:

Country: Stamp:

Date, signature:

© Gardner Denver Deutschland GmbH 610.00250.40.905 P.O. box 1510 Phone: +49 7622 392 0 E-mail: er.de@gardnerdenver.com 10.2009 97605 Bad Neustadt Fax: +49 7622 392 300 Internet: www.gd-elmorietschle.com English

Elmo Rietschle is a brand of Gardner Denver‘s Industrial Products Group and part of Blower Operations.

www.gd-elmorietschle.de

er.de@gardnerdenver.com

Gardner Denver Schopfheim GmbH

Roggenbachstraße 58 79650 Schopfheim · Deutschland Tel. +49 7622 392-0 Fax +49 7622 392-300

Gardner Denver Deutschland GmbH

Industriestraße 26 97616 Bad Neustadt · Deutschland Tel. +49 9771 6888-0 Fax +49 9771 6888-4000

Elmo Rletschle L-BL2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual