DVP LC 8 Manual

VACUUM
TECHNOLOGY
OPERATING AND MAINT ENANCE
INSTRUCTIONS
(Translation of the original instructions)
VACUUM PUMPS WITH RECIRCULATING
LUBRICATION SYSTEM
LC 2
LC 4
LC 8
LC 12
LC 20

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
1
8702036 – 01/04/2022 – R.10 www.dvppumps.com
INDEX
1INTRODUCTION....................................................................................................................................................2
1.1 GENERAL INFORMATION..............................................................................................................................2
1.2 MANUFACTURER INFORMATION ................................................................................................................2
1.3 METHOD OF CONSULTATION ......................................................................................................................2
1.4 PERSONNEL QUALIFICATIONS....................................................................................................................2
1.5 PERSONAL PROTECTION EQUIPMENT ......................................................................................................3
1.6 INFORMATION PLATE ...................................................................................................................................3
2SAFETY .................................................................................................................................................................3
2.1 GENERAL WARNINGS ...................................................................................................................................3
2.2 RESIDUAL RISKS ...........................................................................................................................................3
2.3 PICTOGRAMS.................................................................................................................................................4
3PUMP DESCRIPTION ...........................................................................................................................................5
3.1 INTENTED USE AND CONTRAINDICATIONS...............................................................................................5
3.1.1 INTENTED USE ........................................................................................................................................5
3.1.2 CONTRAINDICATIONS............................................................................................................................5
3.2 FKM VERSION ................................................................................................................................................5
3.3 DIMENSIONS AND CHARACTERISTICS.......................................................................................................6
3.3.1 Model: LC 2 – LC 4 ..................................................................................................................................6
3.3.2 Model: LC 8 ..............................................................................................................................................7
3.3.3 Model: LC 12 ............................................................................................................................................8
3.3.4 Model: LC 20 ............................................................................................................................................9
3.4 NOISE EMISSION .........................................................................................................................................10
4INSTALLATION ...................................................................................................................................................10
4.1 RECEIPT AND CONTENT VERIFICATION ..................................................................................................10
4.2 PACKAGING .................................................................................................................................................10
4.3 TRANSPORT AND HANDLING.....................................................................................................................10
4.4 STORAGE .....................................................................................................................................................10
4.5 ENVIRONMENTAL CONDITIONS ................................................................................................................11
4.6 PUMP INSTALLATION ..................................................................................................................................11
4.7 USER SYSTEM .............................................................................................................................................11
4.8 CONNECTION...............................................................................................................................................11
4.8.1 INTAKE AND OUTLET CONNECTIONS................................................................................................11
4.8.2 WIRING ...................................................................................................................................................12
5OPERATING INSTRUCTIONS............................................................................................................................13
5.1 OPERATION..................................................................................................................................................13
5.1.1 FILLING THE OIL TANK .........................................................................................................................13
5.1.2 START-UP ..............................................................................................................................................13
5.1.3 STOP.......................................................................................................................................................13
5.1.4 PUMPING WATER VAPOUR .................................................................................................................13
6MAINTENANCE...................................................................................................................................................14
6.1 GENERAL WARNINGS .................................................................................................................................14
6.2 MAINTENANCE TABLE ................................................................................................................................14
6.2.1 CHECK OIL LEVEL.................................................................................................................................14
6.2.2 CHANGE OIL ..........................................................................................................................................14
6.2.3 CLEAN MOTOR FAN GUARD EAND CLEAN THE PUMP....................................................................15
6.2.4 CHANGE THE AIR EXHAUST FILTER ..................................................................................................15
6.2.5 CHANGE VANES....................................................................................................................................15
6.3 SPARE PARTS..............................................................................................................................................15
7HOW TO RETURN THE PUMP...........................................................................................................................16
8DISMANTLING ....................................................................................................................................................16
9TROUBLESHOOTING.........................................................................................................................................17

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
2
8702036 – 01/04/2022 – R.10 www.dvppumps.com
1
INTRODU
CTION
1.1
GENERAL INFOR
MATION
This manual is meant to provide you with important information for the safety of persons involved in pump use and
maintenance.
This manual, originally written in ITALIAN, is an integral part of the pump and must be preserved with care for the
life of the pump itself. In the event of sale, lease or loaned use of the pump, it must be delivered to the new user
along with EC declaration of conformity.
Carrying out any operations on the pump before reading and fully understanding all instructions in this manual is
prohibited.
The images contained in this document are examples only and are not binding for the Manufacturer. The
Manufacturer reserves the right to make changes to components, product improvement parts and any other without
updating this manual, if said components or parts do not alter pump operation and safety.
1.
2
MANUFACTURER INFORMATION
D.V.P. Vacuum Technology s.p.a.
Via Rubizzano, 627
40018 - S. Pietro in Casale (BO) - ITALY
Ph [phone]
Fx [phone]
e-mail: [email protected]
web site: http://www.dvppumps.com
Please always include the following information in all communications regarding the pump:
•pump model and serial number
•year of manufacture
•date of purchase
•detail information regarding problems verified
1.
3
M
ETHOD OF
CONSUL
T
ATION
For improved understanding of the information provided in this manual, warnings or instructions considered critical
or hazardous are marked with the following symbols:
HAZARD
Failure to comply with these instructions may cause hazards to persons.
WARNING
Failure to comply with these instructions may cause damage to the pump.
1.
4
PERSONNEL QUALIFICATIONS
DVP products covered by this manual are intended for PROFESSIONAL use only.
To ensure that all operations performed on the pump are carried out safely, operators must have the qualifications
and requirements to carry out its operations.
Operators are classified as follows:
FIRST LEVEL OPERATOR:
Unqualified personnel, having no specific skills, able to perform simple tasks only.
MECHANICAL MAINTENANCE OPERATOR:
Technician qualified to work on mechanical parts to carry out any necessary adjustments, maintenance
or repairs. Not qualified to work on electrical systems in the presence of voltage.
ELECTRICAL MAINTENANCE OPERATOR:
Technician in charge of all operations of an electrical nature. Can operate in the presence of voltage
inside cabinets and connector boxes.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
3
8702036 – 01/04/2022 – R.10 www.dvppumps.com
1.
5
PERSONAL PROTECTION EQUIPM
ENT
This manual assumes that the pump has been installed in workplaces, which comply with all mandatory safety
requirements; in particular, it is mandatory that personnel are equipped with personal protective equipment in
relation to the activities that must be performed.
1.
6
INFORMATION PLATE
All pumps are equipped with an identification plate that contains the manufacturer's name, address, CE marking
and technical data of the pump itself.
WARNING
Removing or tampering with the identification plate is strictly prohibited.
2
S
AFETY
2.1
GENERAL WARNINGS
It is important to read this manual before performing any operation on the pump. Compliance with the safety
standards of the country in which the pump is installed and requirements of qualified personnel for various
maintenance, use, installation, etc. are recommended throughout the life of the pump.
The main rules of conduct to be observed for operation at a suitable level of security are the following:
•Installation, operation, maintenance, etc. operations should always be performed by qualified, trained personnel.
•Without exception, always wear necessary personal protective equipment.
•Always perform all cleaning, adjustment and maintenance operations with all power equipment cut off.
•Do not direct water jets toward electrical parts, even if they are protected by enclosures.
•Do not smoke during work or maintenance, especially where solvents or flammable materials are being used.
•Do not damage symbol plaques or pictograms on the pump. If they should accidentally become damaged,
immediately replace them with other identification plaques.
D.V.P. Vacuum Technology s.p.a. disclaims any liability for damage to persons or property resulting from improper
use of the pump, from tampering with its safety apparatus or failure to observe operational safety standards.
2.2
R
ESIDUAL
RISKS
HAZARD
This pump has been designed to minimise residual risks to personnel. We urge you, however, to
take the utmost care and attention in carrying out maintenance operations. The confidence gained
with frequent contact with the pump too often le
a
ds use
r
s to forget or un
derest
imate risks.
High temperature hazard
Pump surfaces can exceed a temperature of 70°C. Install the pump in a protected area that is accessible only by
authorised personnel and only perform operations when the pump is stopped and cooled.
Hazard generated by low pressure
Avoid contact with pump intake attachment during operation. Introduce air into the suction circuit before any
intervention. Contact with low pressure points can cause accidents.
Hazard generated by pressure
The pump tank is pressurised. Do not open and do not leave oil filler or drain plugs open during operation.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
4
8702036 – 01/04/2022 – R.10 www.dvppumps.com
Danger from the emission of harmful substances
Pump outlet air contains traces of oil mist. Ensure compatibility with the working environment.
Faults or wearing of seals may cause oil lubricant leaks. Avoid dispersion in soil and pollution of other materials.
Whenever air containing hazardous substances are sucked in (i.e. biological or microbiological agents), use
abatement systems placed before the vacuum pump. Used oil must be disposed of according to applicable
regulations in the country of pump use.
Electrical hazard
Electrical equipment in the pump includes live parts which, upon contact, can cause serious damage to persons
and property. Any kind of intervention on the electrical system must be performed by qualified personnel.
Fire hazard
Use of the pump for any uses not provided for or prohibited by this manual as well as a lack of proper maintenance
can cause malfunction with a risk of overheating and fire.
In case of fire, do not use water to extinguish the flames, but use dry chemical or CO2 or other means compatible
with the presence of electrical equipment and lubricants.
Slip and fall hazards
The “L” series vacuum pumps use lubricant to operate. A simple maintenance or improper use not complying with
the instructions included in this manual can damage the gaskets and/or seals and cause the lubricant to spill on the
floor constituting slip and/or fall hazards for personnel.
Entanglement hazard
There is a permanent impending hazard of entangling or entrapping hair and clothing in the cooler fan inside the
guard near the fan casing on the electric motor. Tie long hair up and do not wear baggy clothing, long laces or
other items that could get caught up.
Part projection hazard
Install the pump in order to avoid those in charge of works being directly hit by parts or bits of parts flying through
the fan cover casing due to the cooling fan breaking.
2.3
PI
CTOGRAMS
Pictographs with the warning symbols and safety symbols for operators have been applied to the pump. Read
carefully and take note of the symbols and their messages before using the pump.
ELECTRICAL HAZARD
The pump is near electrical connections (protected) but where accidental contact can cause
electric shock and death.
HOT SURFACE HAZARD
The pump is close to surfaces with temperatures exceeding 70°C which may lead to burns of
medium severity.
REFER TO INSTRUCTION MANUAL/BOOKLET
Before use read the instructions in the operating manual.
D.V.P. Vacuum Technology s.p.a. disclaims any liability for damage to persons or property due to non-compliance
with instructions indicated in pictograms or their improper preservation.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
5
8702036 – 01/04/2022 – R.10 www.dvppumps.com
3
PUMP DESCRIPTION
3.1
INTENT
ED
USE
A
ND CONTRAINDICATI
ONS
3.1.1
INTENTED USE
DVP products covered by this manual are intended for PROFESSIONAL use only.
The pumps described in this manual are oil recirculating rotary vane pumps. These vacuum pumps have been
specifically designed to work with clean air, inert gas or small amounts of water vapour, having a temperature
between 12 and 40 °C at the intake.
These pumps are suitable to evacuate small closed vessels or, in case of some models, to work continuously at
specific final pressure, as explained in paragraph 3.3 “Dimensions and characteristics “.
Any other use is prohibited. The Manufacturer is not liable for any damage to persons and/or property caused by
improper use or not allowed use of the pump.
3.1.2
CONTR
AINDICATIONS
Any use other than that for which the pump was constructed is to be considered an
abnormal condition and therefore can cause damage to the pump and pose a
serious danger to the operator.
Below is a series of operations involving improper use of the pump, which are not permitted under any
circumstances.
•Do not use the pump in an explosive or aggressive atmosphere or in an atmosphere with a high concentration
of dust or oily substances in the air and do not use the pump to pump explosive, flammable or corrosive gases
or gas that form particles. Using the pump in these atmospheres and with these types of gases can cause
injury, explosion, fire or serious damage to the pump.
•Do not use non-original spare parts or parts not provided by the manufacturer.
•Do not use the unit to pump solid materials, chemicals, powders, solvents or other substances differing from
those permitted These types of materials may damage the unit, degrade its performance or reduce its life.
•do not expose the pump to rain, steam or excessive humidity.
•Do not place or store near in the proximity of flammable or combustible materials or substances.
•Do not use the pump as a compressor.
3.2
FKM
VERSION
This version of the pump is equipped with special technical devices, such FKM seals that allow for use even in the
presence of some aggressive gases.
WARNING
Contact the seller to make sure that the pump is suitable for use with a given aggressive gas.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
6
8702036 – 01/04/2022 – R.10 www.dvppumps.com
3
.3
DIMENSION
S AND CHARACTERISTICS
3.3.1
Model:
LC
2
–
LC
4
B
A

A
Intake
3
Info
r
mation plate
7
O
il dra
in plug
B
Air outlet
4
Attachment point
8
Motor ra
ting plate
1
Motor
f
a
n guard
5
Oil filler plug

Only present on special versions
2
Term
inal board
6
Oil sight glass
TECHNICAL SPECIFICATIONS
LC 2 LC 4
50 Hz 60 Hz 50 Hz 60 Hz
Inlet capacity m³/h 2 2,5 4 4,8
Final pressure (Abs.) mbar - hPa 10 2
Max inlet pressure for water vapour mbar - hPa - - - -
Max water vapour pumping rate kg/h - - - -
Motor power kW (1~/ 3~) 0,12 / 0,12 0,15 / 0,15 0,12 / 0,12 0,15 / 0,15
Nominal r.p.m. n/min 2800 3300 2800 3300
Noise level (UNI EN ISO 2151) (K 3dB) dB(A) 48 52 48 52
Weight kg (1~/ 3~) 5,4 / 5,4
Type of oil cod. DVP BV32 (SW40)
Oil quantity dm³ 0,065
Pump Intake / Outlet Ø9mm (1/8″G) / - - -
Continuous-duty working renge (Abs.) mbar - hPa 500 ÷ 10 - - - -
Operating temperature (room temp. 20°C) °C 50 ÷ 55 55 ÷ 60 50 ÷ 55 55 ÷ 60
Required room temp. for place of installation °C 12 ÷ 40
Ambient temperature for storage/transport °C -20 ÷ 50
MAX humidity / altitude 80% / 1000m a.s.l. *
(*) Please contact the Manufacturer if environmental conditions are different from those prescribed.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
7
8702036 – 01/04/2022 – R.10 www.dvppumps.com
3.
3.
2
Model:
L
C 8
A
B
A
I
ntake
3
Oil drain plug
7
Terminal board
B
Air outlet
4
Oil s
ig
ht g
lass
8
Motor rating plate
1
M
otor f
a
n guard
5
Information plate

Only present on special versions
2
Attachment point
6
Oil filler plug
TECHNICAL SPECIFICATIONS
LC 8
50 Hz 60 Hz
Inlet capacity m³/h 8 9
Final pressure (Abs.) mbar - hPa 2
Max inlet pressure for water vapour mbar - hPa - - - -
Max water vapour pumping rate kg/h - - - -
Motor power kW (1~/ 3~) 0,25 / 0,25 0,30 / 0,30
Nominal r.p.m. n/min 2800 3300
Noise level (UNI EN ISO 2151) (K 3dB) dB(A) 56 58
Weight kg (1~/ 3~) 10,0 / 10,0
Type of oil cod. DVP SW40
Oil quantity dm³ 0,2
Pump Intake / Outlet “G 3/8 / 1/4
Continuous-duty working renge (Abs.) mbar - hPa - - - -
Operating temperature (room temp. 20°C) °C 75 ÷ 80 80 ÷ 85
Required room temp. for place of installation °C 12 ÷ 40
Ambient temperature for storage/transport °C -20 ÷ 50
MAX humidity / altitude 80% / 1000m a.s.l. *
(*) Please contact the Manufacturer if environmental conditions are different from those prescribed.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
8
8702036 – 01/04/2022 – R.10 www.dvppumps.com
3.
3.
3
Mo
del:
LC
12
B
A

A
Int
ake
3
Oil sight glass
7
Motor ratin
g plate
B
Air out
let
4
Oil filler plug
8
Motor f
a
n guard
1
Attachmen
t point
5
Information plate

Only present on special versions
2
Oil drain plu
g
6
Terminal board
TECHNICAL SPECIFICATIONS
LC 12
50 Hz 60 Hz
Inlet capacity m³/h 12 14
Final pressure (Abs.) mbar - hPa 2
Max inlet pressure for water vapour mbar - hPa 35
Max water vapour pumping rate kg/h 0,3
Motor power kW (1~/ 3~) 0,45 / 0,37 0,55 / 0,45
Nominal r.p.m. n/min 2800 3300
Noise level (UNI EN ISO 2151) (K 3dB) dB(A) 62 64
Weight kg (1~/ 3~) 14,0 / 12,5
Type of oil cod. DVP BV32 (SW40)
Oil quantity Min÷Max dm³ 0,30 ÷ 0,40
Pump Intake / Outlet “G 1/2
Continuous-duty working renge (Abs.) mbar - hPa 400 ÷ 2
Operating temperature (room temp. 20°C) °C 60 ÷ 65 65 ÷ 70
Required room temp. for place of installation °C 12 ÷ 40
Ambient temperature for storage/transport °C -20 ÷ 50
MAX humidity / altitude 80% / 1000m a.s.l. *
(*) Please contact the Manufacturer if environmental conditions are different from those prescribed.

Operating and Maintenance Instructions
EN
LC 2 – LC 4 – LC 8 – LC 12 – LC 20
9
8702036 – 01/04/2022 – R.10 www.dvppumps.com
3.
3.
4
Model:
LC
20

B
A
A
Intake
3
Oil sight glass
7
Motor rating
plate
B
Air outlet
4
Oil filler plug
8
Motor f
a
n guard
1
Terminal board
5
I
n
formation plate

Only present on specia
l ver
sions
2
Oil drain
plug
6
Attachment point
TECHNICAL SPECIFICATIONS
LC 20
50 Hz 60 Hz
Inlet capacity m³/h 20 24
Final pressure (Abs.) mbar - hPa 2
Max inlet pressure for water vapour mbar - hPa 15
Max water vapour pumping rate kg/h 0,25
Motor power kW (1~/ 3~) 0,75 / 0,75 0,90 / 0,90
Nominal r.p.m. n/min 2800 3300
Noise level (UNI EN ISO 2151) (K 3dB) dB(A) 64 67
Weight kg (1~/ 3~) 19,0 / 17,0
Type of oil cod. DVP BV32 (SW40)
Oil quantity Min÷Max dm³ 0,45 ÷ 0,50
Pump Intake / Outlet “G 1/2
Continuous-duty working renge (Abs.) mbar - hPa 400 ÷ 2
Operating temperature (room temp. 20°C) °C 60 ÷ 65 65 ÷ 70
Required room temp. for place of installation °C 12 ÷ 40
Ambient temperature for storage/transport °C -20 ÷ 50
MAX humidity / altitude 80% / 1000m a.s.l. *
(*) Please contact the Manufacturer if environmental conditions are different from those prescribed.