Edition: 2.3.

2013 · BA 832-42-EN

Original Operating Instructions

S
S-VSI 300 (42)
vacuum pump

S-Serie
S-Series
Schraube
Screw
Table of contents

Table of contents

1 Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Supplier documentation and accompanying documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Directives, standards, laws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6 Symbols and meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.7 Technical terms and meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.8 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Warning instruction markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Unacceptable operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Personal qualifications and training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6 Safety-conscious work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.7 Safety notes for the operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Safety instructions for installing, commissioning and maintenance . . . . . . . . . . . . . . . . . . . . . . 9
2.9 Guarantee conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Transport, storage and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1 Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1 Unpack and check the delivery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Lifting and transporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.1 Ambient conditions for storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Set up and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.1 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 Areas of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Cooling the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.1 Continuous flow cooling (Standard version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.2 Control unit (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.3 Circulation cooling (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Preparing for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3 Connecting pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Connecting the cooling water pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.5 Filling with lubricating oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.6 Connecting the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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 Table of contents

6 Commissioning and decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.1 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1.1 Checking the rotation direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.1.2 Post-run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Decommissioning/ storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3 Re-commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7 Maintenance and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

7.1 Ensuring operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2 Maintenance work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2.1 Changing the oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2.2 Air filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.2.3 Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.2.4 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.3 Repair/ Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.4 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8 Malfunctions: Causes and elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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Foreword

1 Foreword
1.1 Principles

These operating instructions:

• are a part of the following screw vacuum pumps
S-VSI 300 (42).
• describe how to use them safely and properly in
all life phases.
• must be available where the equipment is used.

1.2 Target group

The target group for these instructions is technically

trained specialists.

1.3 Supplier documentation and accompanying documents

Document Contents No.

Operating Instructions BA 832-42-EN
Supplier documentation Declaration of Conformity C 0084-EN
Declaration of harmlessness 7.7025.003.17
Spare parts' list Spare parts document E 832
Data sheet Technical data and graphs D 832 / 42
Info sheet Storage guidelines for machines I 150-EN
Info sheet Recommended water quality I 832-EN
Manufacturer’s declaration EU Directive 2011/65/EU (RoHS II) —

1.4 Abbreviations

Fig. Figure
S-VSI Vacuum pump
m3/h Pumping capacity
mbar (abs.) Final vacuum, operating vacuum

1.5 Directives, standards, laws

See Conformity Declaration

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 Foreword

1.6 Symbols and meaning

Symbol Explanation
Condition, pre-requisite
#### Instructions, action
a), b),... Instructions in several steps
Results
[-> 14] Cross reference with page number
Information, note

Safety symbol
Warns of potential risk of injury
Obey all the safety instructions with this symbol in order
to avoid injury and death.

1.7 Technical terms and meaning

Term Explanation
Machine Pump and motor combination ready to be connected
Motor Pump drive motor
Vacuum pump Machine to create a vacuum
Screw Machine‘s design or active principle
Vacuum pump volume flow related to the condition in the suction
Pumping capacity
connection
Final pressure (abs.) The maximum vacuum that a pump reaches when the suction opening is
closed. Given as absolute pressure.
Permanent vacuum The vacuum or the suction range at which the pump operates
permanently.
The permanent vacuum or intake pressure is ≥ than the final vacuum
and < than the atmospheric pressure.
The noise emitted at a specific loading given as a figure, sound pressure
Noise emission
level dB(A) as per EN ISO 3744.

1.8 Copyright

Passing on or copying this document, using and

providing information on its contents are prohibited
unless expressly permitted. Contraventions will lead
to claims for damages.

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Safety

2 Safety
The manufacturer is not responsible for damage if
you do not follow all of this documentation.

2.1 Warning instruction markings

Warning Danger level Consequences if not obeyed

DANGER immediately imminent danger Death, severe bodily injury

WARNING possible imminent danger Death, severe bodily injury

CAUTION possible hazardous situation Slight bodily injury

NOTICE possible hazardous situation Material damage

2.2 General

These operating instructions contain basic instruc-

tions for installation, commissioning, maintenance
and inspection work which must be obeyed to en-
sure the safe operation of the machine and prevent
physical and material damage.
The safety instructions in all sections must be taken
into consideration.The operating instructions must
be read by the responsible technical personnel/
operator before installing and commissioning / and
must be fully understood. The contents of the oper-
ating instructions must always be available on site
for the technical personnel / operator. Instructions
fixed directly onto the machine must be obeyed and
must always remain legible. This applies for example
to:
• Symbols for connections
• Data and motor data plate
• Instruction and warning plates
The operator is responsible for observing local regu-
lations.

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 Safety

2.3 Designated use

The machine must only be operated in such areas

as are described in the operating instructions:
• only operate the machine in a technically perfect
condition
• do not operate the machine when it is only par-
tially assembled
• the machine must only be operated at an ambi-
ent temperature and suction temperature of
between 5 and 40°C.
Please contact us for temperatures outside this
range.
• the machine may convey, compress or extract
the following media:
• all non-explosive, non-inflammable, non-ag-
gressive and non-poisonous dry gases and
gas air mixtures
• also to feed in extremely damp gases. The
water vapour compatibility is very high.

2.4 Unacceptable operating modes

• extracting, conveying and compressing explo-

sive, inflammable, aggressive or poisonous me-
dia, e.g. dust as per ATEX zone 20-22, solvents
as well as gaseous oxygen and other oxidants,
water vapour, liquids or solid materials
• using the machine in non-commercial plants if
the necessary precautions and protective meas-
ures have not been taken in the plant
• installing in environments that are at risk of ex-
plosions
• using the machine in areas with ionising radia-
tion
• back pressures on the outlet side:
S-VSI (42) 7.5 kW > + 0.2 bar
S-VSI (42) 5.5 kW > + 30 mbar
• Modifications to the machine and accessories

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Safety

2.5 Personal qualifications and training

• Ensure that people entrusted with working on

the machine have read and understood these
operating instructions before starting work,
particularly the safety instructions for installation,
commissioning, maintenance and inspection
work.
• Manage the responsibilities, competence and
monitoring of staff
• all work must only be carried out be technical
specialists:
• Installation, commissioning, maintenance
and inspection work
• Working with electricity
• personnel being trained to work on the ma-
chine must be supervised by technical special-
ists only

2.6 Safety-conscious work

The following safety regulations apply in addition

to the safety instructions and intended use listed in
these instructions:
• Accident prevention regulations, safety and op-
erating regulations
• the standards and laws in force

2.7 Safety notes for the operator

• hot parts of the machine must not be accessible

during operation or must be fitted with a guard
• People must not be endangered by the free
extraction or discharge of pumped media
• Risks arising from electrical energy must be
eliminated.
• The machine must not be in touch with inflam-
mable substances.
Danger of fire by hot surfaces, discharge of
pumped media or cooling air

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 Safety

2.8 Safety instructions for installing, commissioning and maintenance

• The operator will ensure that any installation,

commissioning and maintenance work is car-
ried out by authorised, qualified specialists who
have gained sufficient information by an in-depth
study of the operating instructions.
• Only work on the machine when it is idle and
cannot be switched on again
• Ensure that you follow the procedure for decom-
missioning the machine described in the operat-
ing instructions.
• Fit or start up safety and protective devices
again immediately after finishing work.
• Conversion work or modifications to the ma-
chine are only permissible with the manufactur-
er’s consent.
• Only use original parts or parts approved by the
manufacturer. The use of other parts may invali-
date liability for any consequences arising.
• Keep unauthorised people away from the ma-
chine

2.9 Guarantee conditions

The manufacturer’s guarantee or warranty will no

longer apply in the following cases:
• Improper use
• Not complying with these instructions
• Operation by insufficiently qualified staff
• Using spare parts that have not been approved
by Gardner Denver Schopfheim GmbH
• Unauthorised modifications to the machine or
the accessories supplied by Gardner Denver
Schopfheim GmbH

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Transport, storage and disposal

3 Transport, storage and disposal

3.1 Transportation

3.1.1 Unpack and check the delivery condition

a) Unpack the machine on receipt and check for

transport damage.
b) Notify the manufacturer of transport damage im-
mediately.
c) Dispose of the packaging in accordance with the
local regulations in force.
3.1.2 Lifting and transporting

WARNING

Death or limbs crushed as a result of the items

being transported falling or tipping over.

When transporting with the lifting device remem-

ber:
a) Select the lifting device suitable for the total
weight to be transported.
b) Ensure that the machine cannot tip and fall.
c) Do not stop under a suspended load.
d) Put the goods to be conveyed on a horizontal
base.
Lifting device/ Transporting with a crane

WARNING

Bodily injury resulting from improper operation

a) Loads crosswise to the ring level are not per-
mitted.
b) Avoid impact stress.

1
1 a) Tighten the eyebolts (Fig. 1/1) firmly.
b) The machine must be suspended on the eyebolt
using the lifting device for lifting and transport-
ing.

Fig. 1 Lifting and transporting

1 Eyebolt

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 Transport, storage and disposal

3.2 Storage

NOTICE

Material damage caused by improper storage.

Ensure that the storage area meets the following

conditions:
a) dust free
b) vibration free

3.2.1 Ambient conditions for storage

Ambient conditions Value

Relative humidity 0% to 80%
Storage temperature -10°C to +60°C

The machine must be stored in a dry environment

with normal air humidity. It should not be stored for
more than 6 months.
see Info “Machine storage guidelines”, Page 4

3.3 Disposal

WARNING

Danger from inflammable, corrosive or poison-

ous substances!
Machines that come into contact with hazard-
ous substances must be decontaminated before
disposal.

When disposing ensure the following:

a) Collect oils and grease separately and dispose
of in accordance with the local regulations in
force.
b) Do not mix solvents, cold cleaners and paint
residues.
c) Remove components and dispose of them in
accordance with the local regulations in force.
d) Dispose of the machine in accordance with the
national and local regulations in force.
e) Parts subject to wear and tear (marked as such
in the spare parts list) are special waste and
must be disposed of in accordance with the
national and local waste laws.

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Set up and operation

4 Set up and operation

4.1 Setup

S-VSI 300 (42)

P P1 O H U7 U4 U2

A
H1

I1

K1

Q I K U Q X

Fig. 2 Vacuum pump S-VSI 300 (42)

A Vacuum connection P1 Motor data plate
H, H 1 Oil filling point Q hot surfaces > 70°C
I, I 1 Oil sight glass U Gas ballast valve
K, K1 Oil discharge point U2 Temperature control
M Oil recommendation plate U4 Liquid level monitor
O Rotation direction plate U7 Thermostatic water valve (option)
P Drive motor X Condensate drain G 1/2

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 Set up and operation

S-VSI 300 (42)

N M U1

F D

E
C

Z D1 U3 U5 U6

Fig. 3 Vacuum pump S-VSI 300 (42)

A Vacuum connection M Oil recommendation plate
B Exhaust air outlet N Data plate
C Cooling water inlet G 1/2 U1 Vent valve
1
D Cooling water outlet G /2 U3 Safety valve
D1 Cooling water drain U5 Solenoid valve
E Cooling air inlet U6 Dirt trap
F Cooling air outlet Z Outlet silencer

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Set up and operation

4.1.1 Data plate

1 Type/ Size (mechanical version)

6 1 2 3 4 5
2 Serial number
3 Year of construction
616&
4 Item no.
YDFXXPSXPS
696,  ,'%/ 6 Suction capacity
PEDU DEV PñK
6 Ultimate vacuum (abs.)

(1 
7 Speed
6 N: PLQ
0DGHLQ*HUPDQ\5RJJHQEDFKVWUDVVH'6FKRSIKHLPZZZJGHOPRULHWVFKOHFRP 8 Motor output
9 Operating mode
9 8 7

Fig. 4 Data plate

4.2 Description

The S-VSI model range has a connecting thread on the suction side and an exhaust silencer with connecting
thread on the pressure side.
The TWISTER S-VSI is a double shaft screw vacuum pump in which two parallel screw rotors roll off against
each other without touching and dry. The gas to be fed in is here enclosed in the pump’s suction chamber
and compressed by the rotary movement of the screw rotors in the direction of the outlet. The gas sucked
in is gradually compressed to atmospheric pressure. The counter-rotating screw rotors are synchronised by
a gear pair in the gearbox. The synchronous gearbox gear wheels and the bearings are lubricated with oil.
These components are in a gearbox that also contains the oil supply. Oil conveying devices always ensure
that the bearings and the gear wheels are sufficiently supplied with oil at all permissible speeds.
The gearbox and the compression chamber are separated from each other by special seals. The gearbox is
sealed from the outside with shaft seals and O rings, the compressor chamber with piston rings. Between
the two there is also another atmospherically ventilated area that can be loaded with sealing gas (special
version).
The TWISTER S-VSI is driven by standard flanged three phase motors via a coupling (with an elastomer
component).

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 Set up and operation

4.3 Areas of application

The screw vacuum pumps are suitable for the evacuation of closed systems or for a continuous vacuum
within the following intake pressure ranges: 0.1 to 1000 mbar (abs.).
They are also particularly suitable for feeding in extremely damp gases. The water vapour compatibility is
very high.
The maximum pumping capacity with free suction is 320 m3/h at 50 Hz. Data sheet D 832 / 42 shows the
dependency of the pumping capacity on the intake pressure.
If the unit is switched on more frequently (at regular
intervals of > 10 times an hour) or at higher ambient
temperatures and intake temperatures, the excess
temperature limit of the motor winding and the bear-
ings may be exceeded.Please contact the manufac-
turer should the unit be used under such conditions.
If it is installed in the open air the unit must be pro-
tected from environmental influences, (e.g. by a pro-
tective roof).

ACHTUNG

The srew vacuum pump S-VSI 300 (42) with

5.5 kW motor may only be operated in continuous
operation S1.

When evacuating closed systems the volume to

be evacuated must be max. 80 l.

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Set up and operation

4.4 Cooling the machine

4.4.1 Continuous flow cooling (Standard version)

With continuous flow cooling water flows continu-

U7 U4 U2 U1 ously through the cavity in the double walled com-
pressor housing.
For safety reasons the cooling system is fitted with
a solenoid valve, temperature control and a safety
valve.
A special control unit and a thermostatic water valve
are obtainable.
D

Temperature control
Monitors the temperature of the cooling water.
Factory-provided adjustment: Tmax = 60 °C
Safety valve
C Protect from an incorrect operating pressure of the
cooling water > 6 bar.
Solenoid valve
U3 U5 U6 Regulate the cooling circuit.
Control voltage: 24 V DC
ig. 5 Closed circuit water cooling
Dirt trap
C Cooling water inlet G /2 1 Protect the armatures and the cooling circuit from
impurities in the incoming cooling liquid.
D Cooling water outlet G 1/2
Thermostatic water valve (option)
U1 Vent valve Fresh water cooling control
U2 Temperature control Factory-provided adjustment: Tmax = 55 °C
U3 Safety valve
U4 Liquid level monitor
The Operating Instructions for the monitoring
U5 Solenoid valve
device are enclosed next to the machine.
U6 Dirt trap
U7 Thermostatisches Wasserventil (optional)

4.4.2 Control unit (option)

Control unit (option)
Analyse the signals of the monitoring devices and
control motor as well as solenoid valve.

Fig. 6 Control unit (option)

16 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Set up and operation

4.4.3 Circulation cooling (option)

Fig. 7 Closed circuit water cooling (option)

F F

580 mm
C2

E D2

65
0m
m
580 mm

Fig. 8 Circulation cooling system (option) The cooling circuit is fitted with thermostat-control-
led three-way valves. This enables diversion of water
C2 Cooling water inlet G 3/4 past the heat exchanger during the pump start-up
D2 Cooling water outlet G 3/4 phase. During operation of the pump, a temperature
switch monitors the water temperature and a flow
E Cooling air inlet switch controls the flow rate.
F Cooling air outlet Further detailed technical data on request
Y Display The Operating Instructions for this cooling sys-
tem is enclosed on the device.
Weight / operating weight 101 / 131 kg
Tank capacity 30 l

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Installation

5 Installation
5.1 Preparing for installation

Check the following points:

• Machine freely accessible from all sides
• Do not close ventilation grids and holes
• Sufficient room for installing and removing pipes
and for maintenance work, particularly for install-
ing and dismantling the machine
• No external vibration effects
• Do not suck any hot exhaust air from other ma-
chines into the cooling system.
The oil filling point (Fig. 2/H, H1), oil sight glass (Fig. 2/I, I1) and oil outlets (Fig. 2/K, K1), cooling
water inlet (Fig. 3/C) and cooling water outlet (Fig. 3/D) must be easily accessible.
The cooling air inlets (Fig. 3/E) and cooling air outlets (Fig. 3/F) must be at least 30 cm away from
adjacent walls. Cooling air coming out must not be sucked in again.

5.2 Installation

NOTICE

The machine may only be operated when it is

set up horizontally.

Material damage resulting from the machine

tipping over and falling.

When installed at more than 1000 m above sea

level a reduction in power is noticeable. In this
case we would ask you to contact us.

Contamination in the intake air

To protect the machine the operator should install
appropriate filters on the suction side.

Check for oil leakage

Risk of falling in oil spills!

Ensure that the foundation complies with the follow-

ing conditions:
• Level and straight
• The bearing surface must be designed to be
able to take the weight of the machine.

It is possible to install the machine on a firm base without anchoring. When installing on a sub-
structure we recommend fixing with flexible buffers.

18 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Installation

5.3 Connecting pipes

a) Vacuum connection at (Fig. 2/A, 3/A).

NOTICE

Material damage resulting from the forces and

torques of the pipes on the unit being too high.
Only screw pipes in by hand.

The pumping capacity of the vacuum pump is

reduced if the suction pipe is too narrow and/or
too long.

b) The discharged air can be blown out through the

exhaust silencer at (Fig. 3/B) or conducted away
using a hose or a pipe.

NOTICE

The air vent (Fig. 3/B) must not be closed or

restricted.

Counter pressures on the outlet side are only

permissible up to:
S-VSI (42) 7.5 kW < + 0.2 bar
S-VSI (42) 5.5 kW < + 30 mbar

Prevent liquids accumulating in the exhaust

line.

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Installation

5.4 Connecting the cooling water pipe

NOTICE

Cooling water control!

The vacuum pump must not be operated without
cooling water control.

Danger breakdown of the pump

Ensure that the cooling water stream is not inter-
rupted.

a) Connect the cooling water pipe to the cooling

water inlet (Fig. 3/C) and the cooling water dis-
charge pipe to the cooling water outlet (Fig. 3/D).

NOTICE

Only use pH-neutral, clean and filtered water

for cooling
Dirt particles and aggressive water may lead to
malfunctions or to premature wear in the cooling
system

Suitable cooling water

see Info “Recommended water quality”, Page 4

NOTICE

The cooling water operating pressure must not

exceed 6 bar

Cooling water temperature must be between

15 - 50 °C.

20 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Installation

b) When connecting a circulating cooling system to

an external cooling system, it must be filled with
cooling fluid.

NOTICE

Rinse the pipe network on the customer side

before connecting it
A filter element must be installed in the pipe net-
work to prevent foreign bodies getting into the heat
exchanger.

Risk of frost damage in the cooling system

Freezing cooling water may lead to extensive dam-
age to the machine. Therefore mix the cooling water
with at least 10 % of anti-freeze. The amount of
anti-freeze used must be adjusted to the ambient
climatic conditions.

Handling anti-freeze
Anti-freeze may contain harmful ingredients, such
as ethylene glycol that could damage your health,
especially if swallowed.

5.5 Filling with lubricating oil

a) Fill the lubricating oil (for suitable sorts see

„Maintenance“) for the gear teeth and the bear-
ings into the oil filling points (Fig. 2/H, 2/H1) up
to the middle of the inspection glasses (Fig. 2/
I, 2/I1).
b) Close the oil filling points.

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Installation

5.6 Connecting the motor

DANGER

Danger of death if the electrical installation has

not been done professionally!
The electrical installation may only be done by a spe-
cialist electrician observing EN 60204. The operating
company has to provide the main switch.

a) The motor‘s electrical data is given on the data

plate (Fig. 3/N) or on the motor data plate (Fig. 2/
P1). The motors comply with DIN EN 60034
and are in protection class IP 55 and insulation
class F. The appropriate connection diagram is
located in the motor‘s terminal box (not for the
plug connection version). The motor data must
be compared with the data of the existing mains
network (current type, voltage, network frequen-
cy, permitted current value).
b) Connect the motor via a motor protection switch
(a connecting cable must be installed via a cable
fitting to provide strain relief).
We recommend using motor protection switches
with delayed switch off, depending on possible
excess current. Temporary excess current may
occur when the machine is started cold.

NOTICE

Power supply
The conditions at the installation location must match
the information on the motor data plate.
Without derating the following is permissible:
• ± 5% Voltage deviation
• ± 2% Frequency deviation

22 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Commissioning and decommissioning

6 Commissioning and decommissioning

6.1 Commissioning

WARNING

Improper use
May lead to severe or fatal injuries. Therefore be
sure to obey the safety instructions.

CAUTION

Hot surfaces
When the machine is at operating temperature the
surface temperatures on the components (Fig. 2/
Q) may go above 70°C.
You must avoid touching the hot surfaces (mar-
ked with warning plates)!

CAUTION

Noise emission
The highest noise pressure levels measured as
per EN ISO 3744 are given in Section 9.
When spending a long time in the vicinity of the
running machine use ear protectors to avoid per-
manent damage to your hearing.

CAUTION

Do not put your hands onto the suction con-

nection to check the suction

NOTICE

Do not operate without water cooling with a

sufficient amount of cooling water
The power of the machine lessens and damage may
occur to the machine.

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Commissioning and decommissioning

6.1.1 Checking the rotation direction

The drive shaft direction of rotation is shown by

the rotation direction arrow (Fig. 2/O) on the mo-
tor flange.
a) Start the motor briefly (max. two seconds) to
check the direction of rotation. When looking at
the motor fan, it must rotate clockwise.

NOTICE

Incorrect direction of rotation

Operating in the wrong direction of rotation leads
to damage to the machine.
Use a phase sequence indicator to check the direc-
tion of rotation (anti-clockwise rotating field).

6.1.2 Post-run

For removing accrued dampness and impurities out

of the pump before non-operating of > 2 hours, let
the vacuum pump post-run at 50 - 100 mbar (abs.)
with dry air minimum 10 minutes.

CAUTION

Condensate formation and impurities

By heightened condensate formation and impurities
after shutdown of the machine deposits can adhere
to rotors as well as compressor housing and prevent
an starting when restart.

According to application we recommend, let the

vacuum pump post-run with purge gas.
Please contact the manufacturer should the pump
be used under such conditions.

24 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Commissioning and decommissioning

6.2 Decommissioning/ storing

Stop the machine

a) Switch the machine off.
b) If available close the cut off device in the suction
and pressure pipe.
c) Disconnect the machine from the electricity
source.
d) Depressurise the machine: Open the pipes
slowly
The pressure reduces slowly.
e) Remove the pipes and hoses.
f) Seal the connections for suction and discharge
nozzles with adhesive foil.
g) Discharge cooling water (Fig. 3/D1).
h) Discharge condensate (Fig. 2/X).
see also Section 3.2.1, Page 11
6.3 Re-commissioning

a) Check the condition of the machine (cleanliness,

cabling etc.).
For installation see Section 5 Page 18
For commissioning see Section 6.1 Page 23

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Maintenance and repair

7 Maintenance and repair

DANGER

Danger of death from touching live parts!

Before maintenance work disconnect the machine
by pressing the main switch or unplugging it and
ensure that it cannot be turned on again.

WARNING

Hot surfaces and equipment

During maintenance work there is the danger of
getting burnt on hot components (Fig. 2/Q) and
by the machine lubricating oil.
Wait for the machine to cool down.

7.1 Ensuring operational safety

Regular maintenance work must be carried out in order to ensure operational safety.
Maintenance intervals also depend on the operational demands on the machine.
With any work observe the safety instructions described in Section 2.8 “Safety notes for installation, com-
missioning and maintenance”.
The whole unit should always be kept in a clean condition.

7.2 Maintenance work

Interval Maintenance to be carried out Section

monthly Check the pipes and screws for leaks and to ensure they are —
seated properly and if necessary seal again or tighten up.
monthly Check the terminal box and cable inlet holes for leaks and if —
necessary re-seal.
monthly Clean cooling ribs of the machine and the motor. —
depending on condensate Discharge condensate (Fig. 2/X)
formation
monthly Check the oil level 7.2.1
7.500 h Changing the oil
depending on how dirty the Clean intake air filter 7.2.2
discharged medium is Clean gas ballast valve filter
at least once a year Check for coupling wear 7.2.3
monthly Check the cooling water system and the pipes. 7.2.4
depending on how dirty the Clean dirt trap
cooling liquid is

26 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Maintenance and repair

7.2.1 Changing the oil

H M
H1

I1

K1

I K

Fig. 9 Changing the oil

NOTICE
H, H 1 Oil filling point
Always change the oil when the machine is at
I, I 1 Oil sight glass operating temperature and in an atmospherically
K, K1 Oil discharge point ventilated area.
If it is not completely emptied the amount that can
M Oil recommendation plate be refilled is reduced.

The waste oil must be disposed of in compliance with

the local environmental protection regulations.
If you change the type of oil, empty the oil tank
completely.

The oil level in the sight glasses (Fig. 9/I, I1) must be
checked every month.
When refilling with oil the machine must be switched
off and vented to atmospheric pressure. With clean
operations the oil must be changed after every
7,500 operating hours.
The oil viscosity must comply with ISO VG 150 as
per DIN 51519.
Designation as per DIN 51502: CLP HC 150.
GEAR-LUBE 150 or equivalent oils by other manu-
facturers (also see oil recommendation plate (Fig. 9/
M)).

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Maintenance and repair

7.2.2 Air filtering

s1 f1 D

Fig. 10 Air filtering

NOTICE
D Suction flange
Insufficient maintenance on the air filter
f1 Mesh filter The power of the machine lessens and damage may
s1 Screws occur to the machine.

U Gas ballast valve

Intake air filter:
The mesh filter (Fig. 10/f1) must be cleaned by rins-
ing out or purging or replaced more or less often
depending on how dirty the discharged medium is.
Remove the suction flange (Fig. 10/D) after undoing
the screws (Fig. 10/s1).
Also check the valve seating for contamination.
Assemble in reverse order.

WARNING

Risk of injury when handling compressed air

When blowing through with compressed air, solid
particles may be carried along or powder dust swir-
ling around may cause injury to the eyes.
Therefore, when cleaning with compressed air always
wear goggles and a dust mask.

28 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Maintenance and repair

Gas ballast valve filter:

h1 f3 g1 The pumps work with a gas ballast valve (Fig. 10/U).
The inbuilt filter disc Fig. 11/f3) and micro filter discs
Fig. 11/f4) must be cleaned more or less often by
purging depending on how dirty the medium flow-
ing through is. By undoing the countersunk screw
(Fig. 11/g1) and removing the plastic cover (Fig. 11/
h1) the filter parts can be removed for cleaning.
Re-assemble in reverse order.

f4 f4

Fig. 11 Gas ballast valve

h1 Cover
f3 Filter disc
g1 Countersunk screw
f4 Micro filter discs

WARNING

Danger of injury when dealing with com-

1 pressed air
When blowing through with compressed air, solid
particles may be carried along or powder dust swirl-
ing around may cause injury to the eyes.
Therefore, when cleaning with compressed air always
wear goggles and a dust mask.

Fig. 12 Blowing out the mesh filter

1 Mesh filter
2 Compressed air

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Maintenance and repair

7.2.3 Coupling
The coupling sprocket (Fig. 13/k) is subject to wear
s5 and must be checked regularly (at least once a year).

CAUTION

k Defective coupling sprocket

Defective sprockets may lead to the rotor shaft
n
breaking.

To check the coupling switch the motor off and

m ensure that it cannot be switched on again.
Suspend the motor (Fig. 13/m) on the eyebolt by
means of lifting equipment.
q
Undo the screws (Fig. 13/s5) on the motor flange.
Remove motor and the coupling half on the mo-
tor side (Fig. 13/q) from the motor flange housing
Fig. 13 Coupling (Fig. 13/n) axially. If the sprocket (Fig. 13/k) is dam-
aged or worn, then replace it.
k Coupling sprocket
m Motor NOTICE

n Motor flange housing Frequent starting up and high ambient tem-

perature
q Coupling half on the motor side
The service life of the sprocket (Fig. 13/k) is reduced
s5 Screws as a result of this.

Re-assemble in reverse order.

7.2.4 Cooling
Check the cooling water system and the pipes
monthly.
Continuous flow cooling
The dirt trap (Fig. 5/U6) must be cleaned periodically,
depending on the cooling liquid quality. To do this
unscrew the lock screw and clean the built-in mesh
filter.

Circulation cooling
For maintainance see Operating Instructions, is
enclosed on the cooling device

30 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Maintenance and repair

7.3 Repair/ Service

a) For on site repair work the motor must be
disconnected from the mains by a qualified
electrician so that it cannot be started up again
accidentally. For repairs use the manufacturer,
its branch offices or authorised dealers. Please
contact the manufacturer for the address of the
service centre responsible for you (see Manufac-
turer‘s address).

NOTICE

For each machine that is sent to an Elmo Rietschle

Service centre for inspection, maintenance or repair,
a fully completed, signed declaration of harmless-
ness must be enclosed.
The declaration of harmlessness is part of the
supplier‘s documentation.

b) After a repair or re-commissioning, the actions

listed under „Installation“ and „Commissioning“
must be carried out as for initial commissioning.

Fig. 14 Clearance certificate 7.7025.003.17

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Maintenance and repair

7.4 Spare parts

Order spare parts in accordance with the:

• Spare parts list:

E 832/4 ➝ S-VSI 300 (42)
• Download the pdf file:
http://www.gd-elmorietschle.com
➝ Downloads
➝ Product Documents
➝ S-Series ➝ Spare Parts
• Parts subject to wear and gaskets are indi-
cated separately on the list.
• Web site:
http://www.service-er.de
• Select the type, size and design.

NOTICE

Only use original spare parts or parts approved by

the manufacturer. The use of other parts may lead to
Fig. 15 Spare parts list (example) malfunctions and invalidate liability or the guarantee
for any consequences arising.

Fig. 16 Web site

http://www.service-er.de

32 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Malfunctions: Causes and elimination

8 Malfunctions: Causes and elimination

Fault Cause Troubleshooting Important

Machine is switched Mains voltage/ Frequency Check by qualified electrician Section 5.5
off by the motor pro- does not correspond with the
tection switch motor data
Connection to motor terminal
board is not correct
Motor protection switch is not
set correctly
Motor protection switch is Use a motor protection switch
triggered too quickly with an overload-dependent
delayed switch off that takes
into consideration the short
term excess current at start
up (version with short circuit
and overload trigger as per
VDE 0660 Part 2 orIEC 947-4)
Pumping capacity is The mesh filter is dirty Clean or replace the mesh Section 7.2.2
insufficient filter Section 7.4
The suction pipe is too long or Check the hose or the pipe Section 5.3
too narrow
Machine or system leaking Check the pipework and Section 7.2
screw connections for leaks
and to ensure that they are
firmly seated

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Malfunctions: Causes and elimination

Fault Cause Troubleshooting Important

Final pressure (max. Machine or system leaking Check the pipework and Section 7.2
vacuum) is not screw connections for leaks
reached and to ensure that they are
firmly seated
Too little cooling water Note cooling water consump- Section 9
tion
The mesh filter is dirty Clean or replace the mesh Section 7.2.2
filter Section 7.4
Machine gets too hot Ambient or intake temperature Ensure it is being used prop- Section 2.3
is too high erly
Cooling air supply is ob- Check environmental condi- Section 5.1
structed tions
Clean the cooling ribs Section 7.2
The cooling water system is Check the cooling water sys- Section 7.2
obstructed tem and the pipes
Too little cooling water Note cooling water consump- Section 9
tion
Cooling water inflow is too hot Note the max. intake tem- Section 9
perature
The machine makes Deposits on the rotors Clean the working space and Elmo Rietschle
a abnormal noise the rotors Service
Please contact Elmo Rietschle Service for other malfunctions or those that cannot be eliminated.

34 | www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH

 Technical Data

9 Technical Data

300 (42)
S-VSI
5.5 kW 7.5 kW
Sound pressure level (max.) 50 Hz 74 74
200 mbar (abs.) ➝ 0,1 mbar (abs.)
dB(A)
EN ISO 3744
60 Hz - 76
Tolerance ± 3 dB(A)
50 Hz 88
Sound power level dB(A)
60 Hz 90

Weight * kg 318 328

Length * mm 1292 1292

Width mm 454 454

Height mm 575 575

Vacuum connection G2

1.9
Correct amount of oil l
(1.1 ➝ H + 0.8 ➝ H1)
Cooling water consumption
l/min 6.7
max. intake temperature: 50°C

Cooling water pressure bar max. 6

* The length and the weight may differ from the information listed here depending on the motor manufac-
turer.

You will find more technical data on the data sheet

D 832/42

• Download the pdf file:

D 832/42 ➝ S-VSI 300 (42)
• Download the pdf file:
http://www.gd-elmorietschle.com
➝ Downloads
➝ Product Documents
➝ S-Series ➝ Data Sheets

NOTICE

Subject to technical changes.

Fig. 17 Data sheet (example)

www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH | 35

 www.gd-elmorietschle.com
er.de@gardnerdenver.com

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

Elmo Rietschle is a brand of

Gardner Denver‘s Industrial Products
Division and part of Blower Operations.
 EC - declaration of conformity 2006/42/EC
Hereby the manufacturer Gardner Denver Schopfheim GmbH
confirms: Postfach 1260
D-79642 Schopfheim
that the machine: vacuum pump
of the: Series: S-VSI
Type:
is conform to the regulations of the guideline indicated above.

The following harmonized and national standards and specifications are applied:

EN 1012-2:1996+A1:2009 Compressors and vacuum pumps — Safety requirements — Part 2:

Vacuum pumps

These declarations of conformity are invalid when the machine has been modified without prior ap-
proval by us and the approval has been documented in writing.

Name and address of the EC person in Gardner Denver Schopfheim GmbH

charge for documentation Postfach 1260
D-79642 Schopfheim

Gardner Denver Schopfheim GmbH

Schopfheim, 01.03.2015

Dr. Friedrich Justen, Director Engineering

C_0084_EN
 Safety declaration form 7.7025.003.17
for vacuum pumps and components
Page 1 of 1

Gardner Denver Schopfheim GmbH

Roggenbachstr. 58, 79650 Schopfheim Phone: +49/(0)7622/392-0 Fax: +49/(0)7622/392-300
Repairs and/or maintenance of vacuum pumps and components will only be carried out if a declaration has been
filled in correctly and completely.
If not, the repair work cannot be started and delays will result.
This declaration must only be filled in and signed by authorised qualified staff.

1. Type of vacuum pumps/ components 2. Reason for the submission

Type description:
Machine number
Order number:
Delivery date:

3. Condition of vacuum pumps/ components 4. Contamination of the vacuum pumps/

Was this being operated? YES ‰ NO ‰ components when in use
Which lubrication was used? Toxic YES ‰ NO ‰
Corrosive YES ‰ NO ‰
Was the pump/ component emptied? Microbiological*) YES ‰ NO ‰
(Product/Consumables) YES ‰ NO ‰ Explosive*) YES ‰ NO ‰
Has the pump/ component been cleaned and decontaminaRadioactive*) YES ‰ NO ‰
other YES ‰ NO ‰
YES ‰
Cleaning agent:
Cleaning method:

*) Microbiological, explosive or radioactively contaminated vacuum pumps/ components will only be accepted
with proof that they have been cleaned properly.
Type of toxic substance or process-related, dangerous reaction products with which the vacuum pumps/
components came into contact:
Trade name, manufacturer's Chemical Hazard Action to be taken if toxic First aid in the event of
product name name class substances are released accidents
1
2
3
4
Personal protection measures:

Hazardous decomposition products when subjected to thermal load YES ‰ NO ‰

Which?
5. Legally binding declaration
We swear that the information in this declaration is accurate and complete and that I, the undersigned, am in a
position to judge this. We are aware that we are liable to the contractor for damage caused by incomplete and
inaccurate information. We undertake to release the contractor from any damage claims from third parties arising
from incomplete or incorrect information. We are aware that, regardless of this declaration, we are directly liable
to third parties including in particular the contractor's staff entrusted with handling or repairing the product.

Company:
Street: Post code/ Town:
Phone: Fax:
Name (in capitals) Position:

Date: Company stamp:

Legally binding signature:
TOS no. / Index: 7.7025.003.17 / 03 Office responsible: GS File management: ..\7702500317.xl
Gardner Denver Schopfheim GmbH Postfach 1260 D-79642 Schopfheim