Doctor-San 41 Series User manual

OperatingInstructions
Side Channel Blower
Series 41XX
Single-impeller model Two-impeller model
( single-stage) (two-stage and double-flow)
doctor-san®Sanierungstechnik
MF Trading GmbH
Ferdinand-Porsche-Straße 6
82205 Gilching
Tel: [phone]
Fax: [phone]
www.doctor-san.eu
[e-mail]
Types
4110
4120
4140
4160

Contents
Contents
1 Safety................................................................................................................................................................... 3
1.1 Definitions.................................................................................................................................................... 3
1.1.1 Safety alert symbol........................................................................................................................... 3
1.1.2 Signal words...................................................................................................................................... 3
1.2 General safety precautions....................................................................................................................... 3
1.3 Residual risks.............................................................................................................................................. 5
2 Intended Use....................................................................................................................................................... 6
3 Technical Data.................................................................................................................................................... 7
3.1 Mechanical data.......................................................................................................................................... 7
3.2 Electrical data............................................................................................................................................11
3.3 Operating conditions................................................................................................................................11
4 Transport and Handling...................................................................................................................................11
5 Installation.........................................................................................................................................................12
5.1 Installation..................................................................................................................................................13
5.2 Electrical connection (motor)..................................................................................................................15
5.3Connectingpipes/hoses..............................……………………………………………………….. 17
5.3.1 Inlet connection...............................................................................................................................19
5.3.2 Discharge connection. ...................................................................................................................19
5.3.3 Procedure when connecting pipes/hoses...................................................................................19
6 Commissioning.................................................................................................................................................19
6.1 Preparation................................................................................................................................................20
6.2 Start-up and shut-down...........................................................................................................................20
7 Operation...........................................................................................................................................................21
8 Shut-Down and Longer Standstills................................................................................................................21
8.1 Preparing for shut-down or longer standstill.........................................................................................21
8.2 Storage conditions....................................................................................................................................22
9 Servicing............................................................................................................................................................22
9.1 Repairs/troubleshooting...........................................................................................................................22
9.2 Service/After-sales service. ....................................................................................................................24
9.3 Decontamination and Declaration of Clearance...................................................................................24
10 Disposal...........................................................................................................................................................24
11 Explosion-Protected Design.........................................................................................................................24
12 Explosion view................................................................................................................................................25
13 Spare part list..................................................................................................................................................26
Fig. 1: Design of side channel
blower
1 Blowerhousing
2 Blower cover
3 Inlet connection with muffler
4 Discharge connection with muffler
5 Base
6 Arrow indicating delivery direction
7 Arrow indicating direction of rotation
8 Drive motor
9 Fan guard (over external fan)
10 Terminal box

1 Safety
1.1 Definitions
safety
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 is located in the
safety precautions in the highlighted heading
field on the left next to the signal word
(DANGER,WARNING,CAUTION). 1.2 General safety precautions
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
WARNING the safety precautions in the
CAUTION highlighted heading field.
NOTICE They follow a certain hierarchy
NOTE and indicate (in conjunction with
Chapter 1.1.1) the seriousness
of the danger and the type of
warning.
See the following explanations:
WARNING
Improper use of the unit can result in
serious or even fatal injuries!
All work on and with the pump-motor unit
(transport, installation, operation, shut-down,
maintenance, disposal) may only be carried
out by trained, reliable expert personnel!
DANGER
Danger of injuries.
Indicates an imminently hazardous situation,
that will result in death or serious injury if the
corresponding measures are not taken.
the safety alert symbol, see
NOTICE
Indicates a possible disadvantage, i.e.
undesirable conditions or consequences can
occur if the corresponding measures are not
taken.
NOTICE
Indicates a possible advantage if the
corresponding measures are taken; tip.
WARNING
Improper use of the unit can result in
serious or even fatal injuries!
These operating instructions
• must have been read completely and
understood before beginning any work with
or at the pump-motor unit,
• must be strictly observed,
• must be available at the operating location
of the pump-motor unit.
WARNING
Improper use of the unit can result in
serious or even fatal injuries!
Only operate the pump-motor unit
• for the purposes indicated under "Intended
Use"!
• with the fluids indicated under 'Intended
Use'!
• with the values indicated under 'Technical
Data'
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
Danger of injuries.
Indicates a potentially hazardous situation, that
may result in minor or moderate injury if the
corresponding measures are not taken.
WARNING
When working on the unit, there is a danger
of injury, e.g. in the form of cuts/cutting off,
crushing and burns!
During all work on and with the pump-motor
unit (transport, installation, operation, shutdown,
maintenance, disposal) wear personal
safety equipment (safety helmet, protective
gloves, safety shoes)!

CAUTION
Danger of damage.
Indicates a potentially hazardous situation that
may result in property damage if the
corresponding measures are not taken.

safety
WARNING
Danger from rotating parts (external fan,
impeller, shaft):
Cutting/cutting off of extremities,
Grasping/winding up of hair and clothing!
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and eye
injuries), sudden drawing in of hair and
clothing!
Danger due to escaping fluid: Burns!
Before beginning work on the pump-motor unit,
take the following measures:
• Shut down pump-motor unit and secure
against being switched on again.
• Attach a sign on the system controller and on
the control elements for the pump-motor unit:
DANGER! Maintenance work on vacuum
pump/compressor! Do not switch on!
• Wait for pump-motor unit to come to a
complete stop. Observe run-on time!
• Allow pump-motor unit to cool!
• Shut-off lines. Release pressure.
• Make sure that no vacuum or gauge pressure
is present in the lines/tanks to be opened.
• Make sure that no fluids can escape.
WARNING
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and eye
injuries),
sudden drawing in of hair and clothing!
Danger due to escaping fluid: Burns!
Use mounting elements, connections, lines,
fittings and containers with sufficient freedom
from leaks and strength for the pressures
which occur.
Check the mounting elements, connections,
lines, fittings and containers for strength, leaks
and firm seating at regular intervals!
WARNING
Danger from rotating parts (external fan,
impeller, shaft):
Cutting/cutting off of extremities,
Grasping/winding up of hair and clothing!
Danger due to vacuum and gauge pressure:
sudden escape of fluids (skin and eye
injuries), sudden drawing in of hair and
clothing!
Danger due to escaping fluid: Burns!
Start-up and operation only under the following
conditions:
• The pump-motor unit must be completely
assembled. When doing so, pay particular
attention to the following components:
– the blower cover,
– the muffler on inlet and discharge connection
– the fan guard.
• The pipes/hoses must be connected to inlet
anddischarge connections.
• Inlet and discharge connections and the
connected pipes/hoses may not be closed,
clogged or soiled.
• Check the mounting elements, connections
of the pipe/hose connections, lines, fittings
and containers for strength, leaks and firm
seating at regular intervals.
WARNING
Hair and clothing can be pulled into the unit
or caught and wound up moving parts!
Do not wear long, loose hair or wide, loose
clothes! Use a hair net!
DANGER
Electricaldanger!
Work on electrical installations may be carried
out by trained and authorized electricians only!
DANGER
Electricaldanger!
Before beginning work on the unit or system,
the following measures must be carried out:
• Deenergize.
• Secure against being switched on again.
• Determinewhether deenergized.
• Groundand short-circuit.
• Cover or block off adjacent energized parts.
DANGER
Electricaldanger!
Do not open the motor terminal box until
absence of electricity has been ensured!

saftety
1.3 Residual risks
WARNING
Danger of burns from hot surfaces of the
pump-motor unit and from hot fluids!
High temperatures of up to approx. 160°C
[320 °F] can occur on the surface of the pump
motor unit.
Cover the pump-motor unit with a suitable
touch protection (e.g. perforated plate cover or
wire cover). Do not touch during operation!
Allow to cool after shut-down!
WARNING
Danger zone:
Fan guard
Hazard:
Long, loose hair can be drawn into external fan
through fan guard grate, even with fan guard
mounted!
Protectivemeasures:
Wear hair net!
WARNING
Danger from rotating impeller:
Cutting/cutting of off extremities!
The rotating impeller is accessible with the inlet
and discharge connections open!
Do not reach into the unit through open
connections!
Do not insert objects into the unit through the
openings!
WARNING
Danger from rotating impeller:
Cutting/cutting of off extremities!
The rotating impeller is accessible with the inlet
and discharge connections open!
With free entry and exit of gases, i.e. with
direct intake out of or direct feeding into the
atmosphere without piping, the following
thereforeapplies:
Provide the inlet and discharge connections of
the pump-motor unit either with additional
mufflers or with additional piping of a sufficient
length to prevent access to the impeller!
WARNING
Danger zone:
Missing or defective muffler inlet or discharge
connection.
Hazard:
Possible serious hearing damage due to
emittednoise.
Protectivemeasures:
Have missing or defective mufflers replaced.
Conduct a noise measurement in the system
after installing the pump-motor unit. The
following measures can be taken from
85 dB(A) and must be taken from 90 dB(A):
• Mark noise area with a warning sign.
• Wear hearing protection.
WARNING
Danger zone:
Environment of pump-motor unit.
Hazard:
Possible serious hearing damage due to
emittednoise.
Protectivemeasures:
Conduct a noise measurement in the system
during operation after installing the pumpmotor
unit.
The following measures can be taken from
85 dB(A) and must be taken from 90 dB(A):
• Mark noise area with a warning sign.

WARNING
Danger zone:
Hot surface up to approx. 160°C [320 °F].
Hazard:
Possibleburns.
Protectivemeasures:
Cover the pump-motor unit with a suitable
touch protection (e.g. perforated plate cover or
wire cover)

Intended Use
2 Intended Use •exist in the following designs:
–single-impeller
These operating instructions –two-impeller
The two-impeller pump-motor units in turn
• apply to side channel blower of the 41XX differ in the following designs:
series,types: –two-stage design
4110, 4120, 4140, 4160 (for increased pressure difference)
–double-flow design
(for increased feed volume)
• contains instructions bearing on transport
andhandling, installation, commissioning, •are intended for industrial applications,
operation, shut-down, storage, servicing
and disposal of the 41XX, •are designed for continuous operation.
With an increased switch-on frequency or an
• must be completely read and understood by increased gas entry and ambient temperature,
all operating and servicing personnel before the limit overtemperature of the winding and
beginning to work with or on the 41XX, the bearing can be exceeded.
Consultation with the Service Department is
• must be strictly observed, required for operating conditions of this kind.
• must be available at the site of operation of When operating the 41XX, the limits listed in
the 41XX. Chapter 3, "Technical Data", Pg. 7 ff. must
always be complied with.
About the operating and servicing personnel of
the 41XX:ForeseeableMisuse
• These persons must be trained and It is prohibited
authorized for the work to be carried out.
• to use the 41XX in applications other than
• Work on electrical installations may be industrial applications unless the necessary
carried out by trained and authorized protection is provided on the system, e.g.
electriciansonly. guards suitable for children's fingers;
The 41XXs •to use the device in rooms in which explosive
gases can occur if the 41XX is not expressly
• are pump-motor units for generating intended for this purpose;
vacuum or gauge pressure;
• to extract, to deliver and to compress explosive,
• are used to extract, pump and compress flammable, corrosive or toxic fluids, unless
the following gases: the 41XX is specifically designed for
– Air, this purpose;
– Non-flammable,non-aggressive,nontoxic
and non-explosive gases or gas-air mixtures. •to operate the 41XX with values other than
– With differing gases/gas-air mixtures, those specified in Chapter 3,Technical Data,
inquire with the Service Department. Pg. 7 ff.
• are equipped with one of the following kind Any unauthorized modifications of the 41XX
of drive motors: are prohibited for safety reasons.
– 3-phase AC drive motor The operator is only permitted to perform the
with a standard or explosion-protected design maintenance and service work described in
– Single-phase AC drive motor these operating instructions.
These operating instructions apply only to Any maintenance and service work which goes
pump-motor units with a standard design. beyond this many only be performed by
For an explosion-protected design companies authorized by the manufacturer
(EEx e II), see the separate operating (inquire with the Service Department).
instructions.

Technical data
3.0 Technical data
3.1 Mechanical data
Weight
Minimumdistances
Minimum distance to fan guard
(for sucking in cooling air):
Type
Minimum distance to fan guard
[mm]
[inches]
4110
34
1.34
4120
34
1.34
4140
34
1.34
4160
53
2.09
Minimum distances to
side channel blower cover:
Type
Minimum distances to face of
side channel blower cover
[mm]
[inches]
4110
20
0.79
4120
20
0.79
4140
20
0.79
Single-impellerdesign
Type
Weight
[kg]
[lbs]
4110
approx. 11
approx. 21
4120
approx. 14
approx. 31
4140
approx. 16
approx. 35
4160
approx. 21
approx. 48

Technical Data
Type
Minimum distances to face of
side channel blower cover
[mm]
[inches]
4160
20
0.79
Noise level
Measuring-surface sound-pressure level as
per DIN 45635, T13, measured at a distance of
1 m [3.28 ft] at an operating point of
approximately 2/3 of the permissible total
pressure difference with the lines connected
without a vacuum or pressure relief valve.
Single-impellerdesign
Type
1-mmeasuring-surface
sound pressure level
L [dB (A)]
at 50 Hz
at 60 Hz
4110
approx. 53
approx. 56
4120
approx. 55
approx. 57
4140
approx. 63
approx. 64
4160
approx. 64
approx. 70

Temperatureincrease
Single-impellerdesign Technical Data
The information listed in the following tables at a frequency of 60Hz
corresponds to the heating of side channel blower
housings and the air exiting compared to the ambient
Type Temperatureincrease
temperature during operation with a permissible ∆T [K] ∆ϑ [F]
total pressure difference and an air pressure of 1,013
mbar [14.7 psi].
At lower air pressures these values increase.
4110 ca. 60 ca. 140
4120 ca. 48 ca. 118
4140 ca. 50 ca. 122
4160 ca. 36 ca. 97
Single-impellerdesign
at a frequency of 50Hz
Type
Temperatureincrease
∆T [K] ∆ϑ [F]
4110
ca. 32
ca. 90
4120
ca. 42
ca. 108
4140
ca. 54
ca. 129
4160
ca. 46
ca. 115

Technical Data
With non-electriapproxl connections, property
classes of 8.8 and 8 or higher as per DIN
ISO 898 (DIN EN 20898 / DIN ISO 898) are assumed
Tightening torques for
non-electricalconnections
Thread
[Nm]
[ft lbs]
M4
3 ± 0.3
2.21 ± 0.22
M5
4 ± 0.4
2.95 ± 0.3
M6
8 ± 0.8
5.9 ± 0.59
M8
24 ± 2.4
17.7 ± 1.77
M10
42 ± 4.2
31 ± 3.1
M12
70 ± 7.0
51.6 ± 5.16
The following information for electrical
connection applies to all terminal board
connections with the exception of terminal strips.
Tightening torques for
electricalconnections
Thread
[Nm]
[ft lbs]
M4
0.8 - 1.2
0.59 - 0.89
M5
1.8 - 2.5
1.33 - 1.84
Especially for metal and plastic threaded cable
glands and pipe unions, the following values apply:
Tightening torques for metal
threadedglands/unions
Thread
[Nm]
min
[ft lbs]
max
min
max
M12x1.5
4
6
2.95
4.43
M16x1.5
5
7.5
3.69
5.53
M20x1.5
6
9
4.43
6.64
M32x1.5
8
12
5.9
8.85
M40x1.5
TTightening torques for plastic
threadedglands/unions
Thread
min
[Nm]
max
min
[ft lbs]
max
M12x1.5
2
3.5
1.48
2.58
M16x1.5
3
4
2.21
2.95
M20x1.5
4
5
2.95
3.69
M32x1.5
5
7
3.69
5.16
M40x1.5
Tightening torques for screw connections
The following values apply if no other
information is available.

Transport and Handling
3.2 Electrical data
See rating plate.
3.3 Operatingconditions
Temperatures
Installationaltitude
Max. of 1,000 m [3,280 ft] above sea level.
When installing the pump-motor unit at an altitude
Pressures of more than 1,000 m [3,280 ft] above sea level,
first inquire with the Service department.
4 Transport and Handling
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!
WARNING
Tipping or falling can lead to crushing, broken
bones etc.! Sharp edges can cause cuts!
Wear personal safety equipment (gloves, safety
shoes and protective helmet) during transport!
Permissible
totalpressure
difference:
The total pressure difference
specified on the rating plate
only applies under the
followingconditions:
• Ambienttemperature:
25°C [77 °F].
• Inlettemperature
(temperature of pumped
gases at inlet connection):
15°C [59 °F].
• Pressure:
duringvacuum-pump
operation: 1,013 mbar
[14.7 psia] at discharge
connection;
during compressoroperation:
1,013 mbar [14.7 psia] at
inlet connection;
At an ambient temperature of
40 °C [104 °F] the total pressure
difference specified on the rating
plate must be reduced by 10%.
If the ambient temperature is
between 25 °C [77 °F] and 40 °C
[104 °F], then the total pressure
difference specified on the rating
plate must be reduced.
Temperature of
pumped gases:
max.permissibletemperature:
+40 °C [+104 °F]
Nominalvalue:
+15 °C [+59 °F]
Pump-motor units for higher
fluid temperatures on request.
Ambient
max.permissibletemperature:
temperature:
+40 °C [+104 °F]
min. permissible temperature:
-30 °C [-22 °F]
Nominalvalue:
+25 °C [+77 °F]
Ambienttemperatures between
25 °C [+77 °F] and 40 °C
[+104 °F] affect the permissible
total pressure difference (see
Section "Permissible total
pressure difference"). At higher
temperatures the winding may be
damaged and the grease change
interval may be shortened.
Min. inlet
pressure:
See rating plate.
Max.discharge
pressureduring
compressor
operation:
See rating plate.
Max.
permissible
pressure in
pump-motor
unit:
2 bar abs. [29 psia]
At this pressure the operation of
the pump-motor unit may be
considerablyimpaired.
Provide a corresponding
protective device (e.g. pressure
relief valve) if necessary.

Installation
Manual handling: Eye bolt:
Types with a weight of up to 30 kg [66 lbs] are
not equipped with an eye bolt (2RB0..,2RB1..,
2RB2.., 2RB3.., 2RB4.., 2RB5 [single impeller]).
Types with a weight of more than 30 kg [66 lbs]
are equipped with an eye bolt as standard
(2RB5..[two-impeller],2RB6..,2RB7..,2RB8..,
and2RB9..,).
The eye bolt is mounted on the side channel
blowerhousing.
In case of possible removal and remounting of
the eye bolt, it must be ensured that the eye level
Handling by means of lifting equipment: is positioned exactly in the axis direction of the
pump-motor unit. Lay shims under the eye bolt
if necessary.
The eye bolt must be firmly tightened.
Loads laterally to the ring level are not
permissible. Heavy impact loads during transport
must be avoided.
5 Installation
The transport must be carried out in different
ways depending on the type:
•4110, 4120, 4140, 4160.
(single-impeller):Manualhandling
• with lifting belts.
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 pump-motor unit, see
Chapter 3.1, "Mechanical data",
Section "Weight", Pg. 7. For weights above the
given values use suitable lifting appliances and
handlingequipment!
WARNING
Danger from tipping or falling loads!
When transporting with lifting equipment,
observe the following basic rules:
• The lifting capacity of lifting equipment and
lifting gear must be at least equal to the
unit's weight. For the weight of the pump-
motor unit, see Chapter 3.1, "Mechanical
data", Section "Weight", Pg. 7.
• The pump-motor unit must be secured so
that it cannot tip or fall.
• Do not stand or walk under suspended loads!
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
Have you read the safety precautions in
Chapter 1, "Safety", Pg. 3 f.?
Otherwise you many not carry out any work
with or on the pump-motor unit!
DANGER
Danger from missing view into area of
pump-motorunit!
When operating the control elements without a
view into the area of the pump-motor unit,
there is a danger that the pump-motor unit will
be switched on while other persons are still
performing work on it. Extreme injuries are
possible!
Provide control elements at a location with a
view of the pump-motor unit.
DANGER
Electricaldanger!
The pump-motor unit must be installed so that
the electrical device cannot be damaged by
externalinfluences!
In particular, the feed pipes must be securely
routed, e.g. in cable ducts, in the floor etc.

Installation
The pump-motor unit is ready to connect on
delivery. However, if the time from delivery to
commissioning of the pump-motor unit
exceeds a certain period, the lubrication of the
rolling bearings must be renewed.
See Chapter 8.2, "Storage conditions",Section
"Lubrication of rolling bearings after longer
storage", Pg. 22 for information on this topic.
Carry out the following work to install the
pump-motorunit:
• Installation and securing,
• Attachment of the included loose muffler if
necessary,
• Attachment of threaded flange or hose
flange (available as accessories)
for the connection of inlet or discharge pipe
to the muffler,
• Electricalconnection,
• Connection of inlet and discharge
connection to the system.
5.1 Installation
Ambientconditions:
The pump-motor unit is suitable for installation
in the following environments:
• In a dusty or damp environment,
• in buildings,
• in the open.
When properly installed in the open, the
pump-motor unit must be protected from
exposure to intensive sunlight, e.g. by
attaching a protective roof. Otherwise, no special
protective devices against the effects of
weathering are required.
WARNING
For an installation that differs from the following
specifications, it is necessary to inquire with the
ServiceDepartment!
CAUTION
Danger of overheating due to hot surface of
pump-motorunit!
High temperatures can occur on the surface of
the pump-motor unit.
Temperature sensitive parts, such as lines or
electronic components, may not come into
contact with the surface of the pump-motor unit.
WARNING
Danger from balance damage caused by
vibration!
Vibrating environments can cause balance
damage!
Install the pump-motor unit on a solid
foundation or on a solid mounting surface.
Check screw glands/unions for mounting the
pump-motor unit on the mounting surface
regularly for strength and firm seating.
WARNING
Danger from crushing due to pump-motor
unit tipping over!
Wear personal safety equipment (protective
gloves and safety shoes). Handle the unit with
the appropriate care. Install the pump-motor
unit on a solid foundation or on a solid
mounting surface! Check screw glands/unions
for mounting the pump-motor unit on the
mounting surface regularly for strength.
WARNING
Danger of fire from flammable substances!
The pump-motor unit must never come into
contact with flammable substances.
For exact information on the temperature
increase, see Chapter 3.1, "Mechanical data",
Section "Temperature increase", Pg. 9.
WARNING
Danger of burns from hot surfaces of the
pump-motor unit and from hot fluids!
High temperatures of up to approx. 160°C [320
°F] can occur on the surface of the pump motor
unit.
The pump-motor unit must be installed so that
accidental touch of its surface is not possible.
Cover the pump-motor unit with a suitable
touch protection (e.g. perforated plate cover or
wire cover).
WARNING
Danger of injuries from flying parts!
Select installation so that parts that are thrown
out through the grate if the external fan breaks
cannot hit persons!
WARNING
Danger of tripping and falling!
Make sure the unit does not present a danger
of tripping. Lay cables and pipes so that they
cannot be reached during operation(recessed
in floor, in ducts on the wall etc.).

Installation
The drive motors of the pump-motor units have Components for reducing noise on the pump-motor
the following design: unit:
·with degree of protection IP54 (see rating plate) ·Mufflers (included as standard equipment):
On delivery the pump-motor units are
·with tropicalized insulation. equipped with attached mufflers as standard.
The noise radiation is considerably reduced by
Installationconditions: the mufflers. See Fig. 2 to Fig. 9, Pg. 17 ff.
The pump-motor unit must be installed as follows: ·Additional mufflers (available as an option):
The additional mufflers enable a further noise
·on level surfaces reduction. They may only be used with free
entry and exit of gases, i.e. with direct intake
·at a maximum height of 1000 m [3280 ft] out of or direct feeding into the atmosphere
above sea level without piping.
When installing at an altitude of more than
1,000 m [3,280 ft] above sea level. ·Noise protection hoods (available as an option):
first inquire with the Service Department. Noise protection hoods are suitable for
installation in rooms and in the open. They
Minimumdistances: reduce both the total sound pressure level
and tonal components that are perceived as
To ensure sufficient cooling of the pump-motor unit particularlyannoying.
it is absolutely necessary that the required
minimum distances to the fan guard and to the
face of the side channel blower cover Installation variants/axis position:
be maintained. see Chapter 3.1 "Mechanical data" Basically, when installing the pump-motor unit,
Section "Minimum distances"Pg. 7. the following variants are possible with a different
axis position (horizontal or vertical):
The minimum distances to the face of the side
channel blower cover are especially important ·Horizontalinstallation
when installing on the side channel blower cover
or near a wall. ·Vertical installation on theside channel blower
cover (cover installation")
·Vertical mounting on the wall
Basically, all variants are possible with all type.
Exception: With type 2RB943 vertical installation
on the side channel blower cover (cover installation")
is mandatory.
Noiseradiation:
In addition, a distinction must be made between
a design with and a design without a condensed
water opening for the axis position:
·The pump-motor units without a condensed
To reduce the noise radiation, the following water opening can be installed and secured in
must be observed: any axis position.
·Do not mount pump-motor unit on noise
conducting or noise-radiating parts (e.g. ·The pump-motor unit with a condensed water
thin walls or sheet-metal plates). opening may only be installed and secured
·Provide pump-motor unit with sound-"insulating horizontally with the base at the bottom.
intermediate layers (e.g. rubber buffers
under the base of the pump-motor unit) if Horizontalinstallation
necessary. Screw the base of the pump-motor unit to the
·Install the pump-motor unit on a stable surface with suitable mounting elements.
foundation or on a rigid mounting surface. Proceed as follows:
This provides for smooth, low-vibration ·Provide the base of the pump-motor unit with
running of the pump-motor unit. mountingholes.
CAUTION
To ensure sufficient cooling of the pump-motor unit
also observe the following:
·Ventilation screens and openings
must remain clear.
·Discharge air of other units may not be
directly sucked in again!

Installation
• Select the suitable screw type. 5.2 Electrical connection (motor)
• Screw the base of the pump-motor unit to
the surface with the screws. When doing
so, be sure to provide all mounting holes
with screws!
Vertical installation on the vacuum pump/
compressor cover ("cover installation")
With vertical installation of the pump-motor unit
with the vacuum pump/compressor cover
facing downward, rubber feet must be used.
Proceed as follows:
• The rubber feet are available as
accessories. They are delivered in a set of 3.
On the upper section they are provided with
stud bolts and on the lower section with a
threadedhole.
• Mount the rubber feet on the pump-motor unit:
Screw the stud bolts of the rubber feed into
the holes on the face of the vacuum
pump/compressor cover and tighten them.
• Mount the pump-motor unit together with the
rubber feet on the installation surface:
Select suitable mounting elements for the
threaded hole. Screw the rubber feet to the
surface or foundation via the threaded hole.
Vertical mounting on the wall
With vertical mounting of the pump-motor unit
Regulations:
on the wall, the pump-motor unit is mounted The electrical connection must be carried out
via the holes in the base. as follows:
Proceed as follows: •according to the applicable national and local
laws and regulations,
• Position the pump-motor unit as close to the
wall as possible on a stable supporting plate •according to the applicable systemdependent
with sufficient load-bearing capacity. prescriptionsandrequirements,
The pump-motor unit must be positioned with
the base toward the wall. •according to the applicable regulations of the
• Provide the base of the pump-motor unit with utility company.
mountingholes.
• Select the suitable screw type. Electrical power supply:
• Screw the base of the pump-motor unit to
the wall with the screws. Observe the rating plate.
When doing so, be sure to provide all It is imperative that the operating conditions
mounting holes with screws! correspond to the data given on the rating plate!
• Remove the supporting plate. Deviations permissible without reduction in
performance:
Eye bolt:
Following installation the eye bolt can be
• ±5 % voltage deviation
removed. •±2 % frequency deviation
DANGER
Electricaldanger!
Malpractice can result in severe injuries and
materialdamage!
DANGER
Electricaldanger!
The electrical connection may be carried out
by trained and authorized electricians only!
DANGER
Electricaldanger!
Before beginning work on the unit or system,
the following measures must be carried out:
• Deenergize.
• Secure against being switched on again.
• Determine whether deenergized.
• Groundand short-circuit.
• Cover or block off adjacent energized parts.
CAUTION
Incorrect connection of the motor can lead to
serious damage to the unit!

.
DANGER
Electricaldanger!
There is danger of an electrical shock when a
defective pump-motor unit is touched!
Mount motor circuit breaker.
Have electrical equipment checked regularly
by an electrician.
Installation
Connection to drive-motor terminal box: •For the tightening torques for terminal board
connections(except terminal strips),
Open the required cable entry openings on the see Chapter 3.1, "Mechanical data",Section
terminal box. Here the following two cases are "Tightening torques for screw
differentiated: connections", Pg. 10.
• The cable entry opening is prefabricated and •For terminals with clamping straps (e.g. as
provided with a sealing plug. per DIN 46282), the conductors must be
inserted so that approximately the same
• Screw out sealing plug. clamping height results on both sides of the bar.
OR Individual conductors must therefore be bent
into a U-shape or connected with a cable
• The cable entry opening is closed off with a lug (DIN 46234).
casting skin (only on pump-motor units with
drive-motor axis heights of 100 to 160 in This also applies to:
standarddesign).
• the protective conductor,
• Break out casting skin using a suitable tool. •the outer ground conductor.
For example, use a metal pin with a Both conductors can be recognized from their
corresponding diameter or a chisel and hammer. color(green/yellow).
Mount cable glands on the terminal box.
Proceed as follows:
• Select one cable gland in each case which is
suitable for the cable diameter.
• Insert this cable gland in the opening of the
terminal box.
Use a reducer if necessary.
• Screw on the cable gland so that no
moisture, dirt etc. can penetrate into the
terminal box.
Carry out the connection and the arrangement For motor overload protection:
of the jumpers in accordance with the circuit
diagram in the terminal box. •Use motor circuit breakers.
• This must be adjusted to the specified nominal
Connect the protective conductor to the current (see rating plate).
terminal with the following symbol:
The electrical connection must be carried out
as follows:
• The electrical connection must be
permanentlysafe.
• 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 Interference immunity of drive motor:
UN ≤690V). For drive motors with integrated sensors, the
operator must provide for a sufficient
CAUTION
When pounding out the casting skin on the cable
entry openings in the terminal box, the terminal
box or its parts can be damaged (e.g. terminal
board, cable connections).
Proceed with suitable caution and precision
when doing so! Prevent flash formation!
DANGER
Electricaldanger!
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
DANGER
Electricaldanger!
Clearance between bare live parts and
between bare live parts and ground:
at least 5.5 mm [0.217"] (at a nominal voltage
of UN ≤690V).
There may be no protruding wire ends!

Installation
interference immunity itself. Select a suitable
sensor signal cable (e.g. with screening,
connection as for a motor power-supply cable)
and analyzing unit.
Operation with frequency converter:
With a power supply by a frequency converter,
the following must be observed:
• High-frequency current and voltage
harmonics in the motor supply cables can lead
to emitted electromagnetic interference.
This is dependent on the converter design
(type, manufacturer, interference suppression
measures).
• Be sure to observe the EMC notes of the
convertermanufacturer!
• Use screened power supply cables if necessary.
For optimal screening, the screen must be
conductively connected over a large area to the
metal terminal box of the drive motor with a
screwed metal gland.
• In the case of drive motors with integrated
sensors (e.g. PTC thermistors) interference
voltage can occur on the sensor cable depending
on the converter type.
• Limit speed:
see specifications on the rating plate.
5.3 Connecting pipes/hoses (vacuum
pump/compressor)
Mufflers:
The pump-motor units are delivered with
mufflers (indicated with arrows in the following
illustrations) for the inlet and discharge
connections as standard equipment.
On delivery the mufflers are already mounted
on the following pump-motor units.
Fig. 2: 4140 - 4160 (single-impeller
pump-motorunits)

Installation
Connections:
To prevent foreign bodies from entering the unit,
all connections are sealed off when delivered. Do not
remove the sealing plugs until immediately before
connecting the pipes/hoses.
The following applies for the arrangement of the
pipe/hoseconnections:
The pumped gases are sucked in via the inlet
connection and discharged via the
dischargeconnection
The shaft rotating direction is marked with an
arrow on the back of the side channel blower
housing (Fig. 1, Pg. 2, Item 7).
The delivery direction of the gases is marked with
arrows on both connections (Fig. 1, Pg. 2, Item 6).
WARNING
Danger from rotating impeller:
Cutting/cutting of off extremities!
The rotating impeller is accessible with the inlet
and discharge connections open!
With free entry and exit of gases, i.e. with
direct intake out of or direct feeding into the
atmosphere without piping, the following
thereforeapplies:
Provide the inlet and discharge connections of
the pump-motor unit either with additional
mufflers or with additional piping of a sufficient
length to prevent access to the impeller!
WARNING
Danger from interchanging inlet and
pressure line!
Interchanged inlet and pressure lines can lead
to damage to the pump-motor unit and the
system, and as a result of this to serious
injuries!
Make sure that the inlet and pressure line
cannot be confused when connecting.
Look for the clear marking with the arrow
indicating the delivery direction on the inlet and
dischargeconnections.