KNF N 035 ANE User manual

KNF N 035 E e 08/09
Translation of the original Operating and installation instructions Keep for future use!
Diaphragm Vacuum Pumps and Compressors
N 035 ANE
N 035 AN.9 E
N 035 ATE
N 035 AVE
N 035 AV.9 E
N 035 SNE
N 035 STE
N 035 ST.9 E
N 035 SVE
N 035.1 ANE
N 035.1 AN.9 E
N 035.1 ATE
N 035.1 AT.9 E
N 035.1 AVE
N 035.2 ANE
N 035.2 AN.9 E
N 035.2 ATE
N 035.2 AVE
N 035.3 ANE
N 035.3 ATE
N 035.3 AVE
N 035.1 SNE
N 035.1 STE
N 035.1 SVE
N 035.2 SNE
N 035.2 STE
N 035.2 SVE
N 035.3 SNE
N 035.3 STE
N 035.3 SVE
Operating and
installation
instructions
Read and observe these
operating and installation
instructions!
Contents Page
1. About this document................................................................. 2
2. Use........................................................................................... 3
3. Safety ....................................................................................... 4
4. Technical Data ......................................................................... 5
5. Design and Function ................................................................ 9
6. Installation and connection..................................................... 12
7. Operation................................................................................ 19
8. Servicing................................................................................. 21
9. Troubleshooting...................................................................... 28
10. Spare parts and accessories.................................................. 30
11. Decontamination Declaration................................................. 32
KNF Neuberger GmbH
Alter Weg 3
D-79112 Freiburg
Germany
Phone [phone] / 5909-0
Fax [phone] / 5909-99
E-mail: [email protected]
www.knf.de
Valid from : Aug. 2009

Diaphragm Pump N 035 E About this document
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 2
1. About this document
1.1. Using the Operating and installation instruc-
tions
The operating and installation instructions are part of the pump.
 Pass on the operating and installation instructions to the next
owner.
Customer-specific project pumps (pump models which begin with
“PJ” or “PM”) may differ from the operating and installation instruc-
tions.
 For project pumps, also observe the agreed upon specifica-
tions.
1.2. Symbols and Markings
Warning
WARNING
A danger warning is located here.
Possible consequences of a failure to observe the
warning are specified here. The signal word, e.g.
Warning, indicates the danger level.
 Measures for avoiding the danger and its con-
sequences are specified here.
Danger levels
Signal word Meaning Consequences if not observed
DANGER warns of immedi-
ate danger Death or serious injuries and/or serious damage are the
consequence.
WARNING warns of possible
danger Death or serious injuries and/or serious damage are
possible.
CAUTION warns of a possibly
dangerous situa-
tion
Minor injuries or damage are
possible.
Tab. 1
Other information and symbols
 An activity to be carried out (a step) is specified here.
1. The first step of an activity to be carried out is specified here.
Additional, consecutively numbered steps follow.
This symbol refers to important information.
Project pumps

Diaphragm Pump N 035 E Use
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 3
2. Use
2.1. Proper use
The pumps are exclusively intended for transferring gases and
vapors.
Owner's responsibility
Only install and operate the pumps under the operating parameters
and conditions described in Chapter 4, Technical data.
Before using a medium, check whether the medium can be trans-
ferred danger-free in the specific application case.
Before using a medium, check the compatibility of the materials of
the pump head, structured diaphragm and valves with the medium.
If combustible media are used: Hazard of fires and explosions due
to excessively high media temperature:
 Be aware that the pumps are not designed to be explosion-
proof.
 Make sure the temperature of the medium is always sufficiently
below the ignition temperature of the medium, to avoid ignition
or explosion. This also applies for unusual operational situa-
tions.
 Note that the temperature of the medium increases when the
pump compresses the medium.
 Hence, make sure the temperature of the medium is suffi-
ciently below the ignition temperature of the medium, even
when it is compressed to the maximum permissible operating
pressure of the pump. The maximum permissible operating
pressure of the pump is stated in the technical specifications
(Chapter 4).
 If necessary, consider any external sources of energy, such as
radiation, that may add heat to the medium.
 In case of doubt, consult the KNF customer service.
Only transfer gases which remain stable under the pressures and
temperatures occurring in the pump.
2.2. Improper use
The pumps may not be operated in an explosive atmosphere.
The pumps are not suitable for transferring dusts.
The pumps are not suitable for transferring liquids.
Operating parameters and
conditions
Requirements for
transferred medium

Diaphragm Pump N 035 E Safety
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 4
3. Safety
Note the safety precautions in sections 6. Installation and
connection, and 7. Operation.
The pumps are built according to the generally recognized rules of
technology and in accordance with the occupational safety and
accident prevention regulations. Nevertheless, dangers can result
during their use which lead to injuries to the user or others, or to
damage to the pump or other property.
Only use the pumps when they are in a good technical and proper
working order, in accordance with their intended use, observing the
safety advice within the operating and installation instructions, at all
times.
Make sure that only trained and instructed personnel or specially
trained personnel work on the pumps. This especially applies to
assembly, connection and servicing work.
Make sure that the personnel has read and understood the operat-
ing and installation instructions, and in particular the "Safety"
chapter.
Observe the accident prevention and safety regulations when
performing any work on the pump and during operation.
When transferring dangerous media, observe the safety regula-
tions when handling these media.
Store all replacement parts in a protected manner and dispose of
them properly in accordance with the applicable environmental
protection regulations. Observe the respective national and inter-
national regulations. This especially applies to parts contaminated
with toxic substances.
The pumps conform to the safety regulations of the EC Low Volt-
age Directive 2006/95 EC, and the EC Directive 2004/108 EC
concerning Electromagnetic Compatibility.
The following harmonized standards have been used:
IP20 IP44
EN 55014 EN 55014
EN 61000-3-2/3 EN 61000-3-2/3
EN 60335-1 EN 60204-1
Tab. 2
Only have repairs to the pump carried out by the KNF Customer
Service responsible.
Use only genuine parts from KNF for servicing work.
Personnel
Working in a safety-
conscious manner
Handling dangerous media
Environmental protection
Standards
Customer service and
repairs

Diaphragm Pump N 035 E Technical Data
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 5
4. Technical Data
Pump materials
Material*Pump type Pump head Diaphragm Valve Gasket
N 035 ANE
N 035 AN.9 E
N 035.1 ANE
N 035.1 AN.9 E
N 035.2 ANE
N 035.2 AN.9 E
N 035.3 ANE
Aluminium CR Stainless Steel CR
N 035 ATE
N 035.1 ATE
N 035.1 AT.9 E
N 035.2 ATE
N 035.3 ATE
Aluminium PTFE-coated Stainless Steel FPM
N 035 AVE
N 035 AV.9 E
N 035.1 AVE
N 035.2 AVE
N 035.3 AVE
Aluminium FPM Stainless Steel FPM
N 035 SNE
N 035.1 SNE
N 035.2 SNE
N 035.3 SNE
Stainless Steel CR CR -
N 035 STE
N 035 ST.9 E
N 035.1 STE
N 035.2 STE
N 035.3 STE
Stainless Steel PTFE-coated PTFE -
N 035 SVE
N 035.1 SVE
N 035.2 SVE
N 035.3 SVE
Stainless Steel FPM FPM -
Tab. 3 *according to DIN ISO 1629 und 1043.1

Diaphragm Pump N 035 E Technical Data
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 6
Pneumatic values
Pump type Delivery rate* (l/min)
at atm. pressure
Max. permissible
operating pressure (bar) Ultimate vacuum (mbar abs.)
N 035 ANE IP20
N 035 AN.9 E IP20
N 035 ANE IP44
N 035 AN.9 E IP44
N 035 ANE IP44 3 phase
N 035 SNE IP20
N 035 SNE IP44
30
4 100
N 035 ATE IP20
N 035 ATE IP44
N 035 STE IP20
N 035 STE IP44
N 035 ST.9 E IP44
N 035 STE IP44 3 phase
27
4 100
N 035 AVE IP20
N 035 AVE IP44
N 035 AV.9 E IP44
N 035 AVE IP44 3 phase
N 035 AV.9 E IP44 3 phase
N 035 SVE IP20
N 035 SVE IP44
30
2 100
N 035.1 ANE IP 20
N 035.1 AN.9 E IP 20
N 035.1 ANE IP 44
N 035.1 AN.9 E IP 44
N 035.1 ANE IP 44 3 phase
N 035.1 AVE IP 20
N 035.1 AVE IP 44
N 035.1 AVE IP 44 3 phase
N 035.1 SNE IP 20
N 035.1 SNE IP 44
N 035.1 SNE IP 44 3 phase
N 035.1 SVE IP 20
N 035.1 SVE IP 44
N 035.1 SVE IP 44 3 phase
55 - 100
N 035.1 ATE IP 20
N 035.1 ATE IP 44
N 035.1 AT.9 E IP 44
N 035.1 ATE IP 44 3 phase
N 035.1 STE IP 20
N 035.1 STE IP 44
49.5 - 100
Tab. 4 (part 1) *Liters in standard state (1,013 mbar)

Diaphragm Pump N 035 E Technical Data
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 7
Pump type Delivery rate* (l/min)
at atm. pressure
Max. permissible operat-
ing pressure (bar) Ultimate vacuum (mbar abs.)
N 035.2 ANE IP 20
N 035.2 ANE IP 44
N 035.2 AN.9 E IP 44
N 035.2 ANE IP 44 3 phase
N 035.2 SNE IP 20
N 035.2 SNE IP 44
55 4 -
N 035.2 ATE IP 20
N 035.2 ATE IP 44
N 035.2 STE IP 20
N 035.2 STE IP 44
49.5 4 -
N 035.2 AVE IP 20
N 035.2 AVE IP 44
N 035.2 AVE IP 44 3 phase
N 035.2 SVE IP 20
N 035.2 SVE IP 44
55 2 -
N 035.3 ANE IP 20
N 035.3 ANE IP 44
N 035.3 ANE IP 44 3 phase
N 035.3 AVE IP 20
N 035.3 AVE IP 44
N 035.3 SNE IP 20
N 035.3 SNE IP 44
N 035.3 SVE IP 20
N 035.3 SVE IP 44
N 035.3 SVE IP 44 3 phase
30 - 13
N 035.3 ATE IP 44
N 035.3 STE IP 44 27 - 20
Tab. 4 (part 2) *Liters in standard state (1,013 mbar)

Diaphragm Pump N 035 E Technical Data
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 8
Electrical data
Parameter Value one-
headed pumps Value two- headed pumps
Voltage / Frequency of
AC motor 230 V / 50 Hz 230 V / 50 Hz
Voltage / Frequency of
3 phase motor 230/400 V 50 Hz 230/400 V 50 Hz
Power IP20 version 220 W 300 W
Power IP44 version capacitor
motor 230 W 320 W
Power IP 44 version 3 phase
motor 250 W 280 W
Operating current
IP20 version 1 A 1.55 A
Operating current
IP44 version 1.7 A 1.90 A
Operating current IP44 ver-
sion threephase motor 1.7 A/1.0 A 2.1 A / 1.05 A
Protection class* IP20 / IP44 IP 20 / IP 44
Tab. 5 * see type plate
The pumps are fitted as standard with a thermal-switch to protect
against overloading.
Other parameters
Parameter Values
Permissible
ambient temperature + 5 °C to + 40 °C
Permissible media temperature + 5 °C to + 40 °C
Gas-tightness of pump head
(leak rate)* for all pumps except
.9 versions (not tested)
ca. 6 x 10-3 mbar l/s
Gas-tightness of pump head
(leak rate)* for N 035_ _.9 E < 6 x 10-3 mbar l/s
Tab. 6
* After opening pump head or replacing the diaphragm and reed valves (or
valve plate) the gas tightness is no longer guaranteed. A leak test is able
to verify that the original standard of gas-tightness has been achieved.

Diaphragm Pump N 035 E Design and Function
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 9
5. Design and Function
Design N 035 A__E (IP20)
1Pneumatic pump outlet
2Pneumatic pump inlet
3Electrical Connection
4 Motor
Fig. 1: Diaphragm Pump N 035 ANE (IP20)
Design N 035 A__E (IP44)
1Pneumatic pump outlet
2Pneumatic pump inlet
3Terminal box (electrical
connetion)
4 Motor
Fig. 2: Diaphragm Pump N 035 ANE (IP44)

Diaphragm Pump N 035 E Design and Function
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 10
Fig. 3: Pneumatic connection of two-headed pumps

Diaphragm Pump N 035 E Design and Function
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 11
Function diaphragm pump
1Outlet valve
2Inlet valve
3Transfer chamber
4Diaphragm
5Eccentric
6 Connecting rod
7Pump drive
Fig. 4: Pump head
The pump transfers, compresses (depending on pump version)
and evacuates gases and vapors.
The elastic diaphragm (4) is moved up and down by the eccentric
(5) and the connecting rod (6). In the downward stroke it aspirates
the gas to be transferred via the inlet valve (2). In the upward
stroke, the diaphragm presses the medium out of the pump head
via the outlet valve (1). The transfer chamber (3) is hermetically
separated from the pump drive (7) by the diaphragm.

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 12
6. Installation and connection
Only install and operate the pumps under the operating parameters
and conditions described in chapter 4, Technical data.
Observe the safety precautions (see chapter 3).
6.1. Installation
 Before installation, store the pump at the installation location to
bring it up to room temperature.
 Mounting dimensions (see figs. 5 to 16).
Fig. 5: Mounting dimensions N 035 A_E (IP20) including .9 versions
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Fig. 6: Mounting dimensions N 035 A_E (IP44) including .9 versions
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Mounting dimensions

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 13
Fig. 7: Mounting dimensions N 035 S_E (IP20)
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Fig. 8: Mounting dimensions N 035 S_E (IP44) including .9 versions
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Fig. 9: Mounting dimensions N 035.1 A_E (IP20) and N 035.3 A_E (IP20)
including .9 versions (All dimensional tolerances conform to DIN
ISO 2768-1, Tolerance Class V)

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 14
Fig. 10: Mounting dimensions N 035.1 A_E (IP44) and N 035.3 A_E (IP44)
including .9 versions (illustration without pneumatic connection; all
dimensional tolerances conform to DIN ISO 2768-1, Tolerance
Class V)
Fig. 11: Mounting dimensions N 035.2 A_E (IP20)
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Fig. 12: Mounting dimensions N 035.2 A_E (IP44) including .9 versions
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 15
Fig. 13: Mounting dimensions N 035.1 S_E (IP20) and N 035.3 S_E (IP20)
(illustration without pneumatic connection; all dimensional toler-
ances conform to DIN ISO 2768-1, Tolerance Class V)
Fig. 14: Mounting dimensions N 035.1 S_E (IP44) and N 035.3 S_E (IP44)
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
Fig. 15: Mounting dimensions N 035.2 S_E (IP20)
(illustration without pneumatic connection; all dimensional toler-
ances conform to DIN ISO 2768-1,Tolerance Class V)

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 16
Fig. 16: Mounting dimensions N 035.2 S_E (IP44)
(All dimensional tolerances conform to DIN ISO 2768-1,
Tolerance Class V)
 Install the pump so that the motor fan can intake sufficient
cooling air.
 Make sure that the installation location is dry and the pump is
protected against rain, splash, hose and drip water.
 Install the pump at the highest point in the system to prevent
condensate from collecting in the pump head.
 Protect the pump from dust.
 Protect the pump from vibrations and jolts.
6.2. Electrical connection
DANGER
Extreme danger from electrical shock
 Only have the pump connected by an authorized
specialist.
 Only have the pump connected when the power
supply is disconnected.
 When connecting the device to a power source, the relevant
standards, directives, regulations, and technical standards
must be observed.
 In the electrical installation, arrangements (complying with EN
60335-1) must be made for disconnecting the pump motor
from the electrical supply.
 KNF recommends that a fuse is installed in the motor supply
circuit (overcurrent release).
 For operating current see type plate or data sheet.
Cooling air supply
Installation location

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 17
Connecting pump
1. Compare the supply data with the data on the motor-plate. For
operating current see type plate.
The voltage must not vary by more than + 10% and - 10%
from that shown on the type-plate.
2. For IP 44 versions: open terminal box cover.
3. All pumps except versions with 3 phase motor: Connect the
mains cables to the connections L1 and N of the pump motor.
4. Connection of pumps with 3 phase motor according to figs. 17
or 18.
5. Connect the earth (ground) wire to the motor.
6. For IP 44 versions: close the terminal cover box.
Fig. 17: Y-Connection (high voltage)
Fig. 18: ∆-Connection (low voltage)

Diaphragm Pump N 035 E Installation and connection
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 18
6.3. Pneumatic connection
 Only connect components to the pump which are designed for
the pneumatic data of the pump (see section 4).
 If the pump is used as a vacuum pump, safely discharge the
pump exhaust at the pump’s pneumatic outlet.
Connecting pump
A marking on the pump head shows the direction of flow. For
two-headed pumps fig. 3 shows the pneumatic connections.
1. Remove the protective plugs from the hose connection
threads.
2. The assecorries silencer, filter, and hose connectors (where
applicable) are screwed into the port threads.
If the pump is used as a vacuum pump (not permitted with
series N 035.2), mount the silencer at the pressure side if
necessary. If the pump is used a compressor (not permitted
with series N 035.1 and N 035.3), mount the filter at the suc-
tion side if necessary.
3. Connect the suction line and pressure line (thread size G ¼)
4. Lay the suction and pressure line at a downward angle to
prevent condensate from running into the pump.
Connected components
Pump exhaust

Diaphragm Pump N 035 E Operation
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 19
7. Operation
 Only operate the pump under the operating parameters and
conditions described in chapter 4, Technical data.
 Make sure the pumps are used properly (see section 2.1).
 Make sure the pumps are not used improperly (see section
2.2).
 Observe the safety precautions (see chapter 3).
WARNING
Hazard of the pump head bursting due to excessive
pressure increase
 Do not exceed max. permissible operating
pressure (see section 4).
 Monitor pressure during operation.
 If the pressure exceeds the maximum permissi-
ble operating pressure, immediately shut down
pump and eliminate fault (see chapter 9. Trou-
bleshooting).
 Only throttle or regulate the air or gas quantity in
the suction line to prevent the maximum permis-
sible operating pressure from being exceeded.
 If the air or gas quantity in the pressure line is
throttled or regulated, make sure that the maxi-
mum permissible operating pressure of the
pump is not exceeded.
Excessive pressure (with all of the related hazards) can be
prevented by placing a bypass line with a pressure-relief valve
between the pressure and suctions sides of the pump. For
further information, contact our technical adviser.
 With the pump at a standstill, open pressure and suction lines
to normal atmospheric pressure.
For pumps with thermo switch (special design):
WARNING
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by
the thermal switch, the pump will restart automati-
cally after cooling down.
 Take all necessary care to prevent this leading
to a dangerous situation.
Pump standstill

Diaphragm Pump N 035 E Operation
KNF N 035 E e 08/09 Translation of the original Operating and installation instructions 20
Switching pump on
The pump may not start up against pressure or vacuum during
switch-on. This also applies in operation following a brief
power failure.
 Make sure that no pressure is present in the lines during
switch-on.
Switching off the pump
 KNF recommends: When transferring aggressive media, flush
the pump prior to switch-off to increase the service life of the
diaphragm (see section 8.2.1).
 Open pressure and suction lines to normal atmospheric pres-
sure.