BUSCH Panda WV 0250 C User manual

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Instruction Manual
Panda
Vacuum Booster
WV 0250 C, WV 0500 C, WV 1000 C,
WV 1500 C, WV 2000 C
0870559556/A0008_en / Original instructions / Modifications reserved 15/09/2021

Table of Contents
2 / 24 Instruction Manual PANDA WV 0250-2000 C_EN_en
Table of Contents
1 Safety .......................................................................................................................................3
2 Product Description ..................................................................................................................4
2.1 Operating Principle .......................................................................................................... 5
2.2 Application....................................................................................................................... 5
3 Transport ..................................................................................................................................6
4 Storage .....................................................................................................................................7
5 Installation................................................................................................................................7
5.1 Installation Conditions...................................................................................................... 7
5.2 Connecting Lines / Pipes .................................................................................................. 8
5.2.1 Gas Flow Variants.................................................................................................. 8
5.2.2 Suction Connection ............................................................................................... 8
5.2.3 Discharge Connection ........................................................................................... 8
5.3 Filling Oil.......................................................................................................................... 9
5.4 Electrical Connection ........................................................................................................ 10
5.4.1 Wiring Diagram Three-Phase Motor...................................................................... 11
6 Commissioning.........................................................................................................................12
6.1 Compression Chamber Flushing ....................................................................................... 13
7 Maintenance.............................................................................................................................14
7.1 Maintenance Schedule ..................................................................................................... 15
7.2 Oil Level Inspection.......................................................................................................... 15
7.3 Oil Colour Inspection ....................................................................................................... 15
7.4 Oil Change....................................................................................................................... 16
8 Overhaul...................................................................................................................................18
9 Decommissioning.....................................................................................................................19
9.1 Dismantling and Disposal ................................................................................................. 19
10 Spare Parts................................................................................................................................19
11 Troubleshooting .......................................................................................................................20
12 Technical Data..........................................................................................................................22
13 Oil ............................................................................................................................................22
14 EU Declaration of Conformity...................................................................................................23

Safety | 1
Instruction Manual PANDA WV 0250-2000 C_EN_en 3 / 24
1 Safety
Prior to handling the machine, this instruction manual should be read and understood. If
anything needs to be clarified, please contact your Busch representative.
Read this manual carefully before use and keep for future reference.
This instruction manual remains valid as long as the customer does not change anything
on the product.
The machine is intended for industrial use. It must be handled only by technically trained
personnel.
Always wear appropriate personal protective equipment in accordance with the local
regulations.
The machine has been designed and manufactured according to state-of-the-art meth-
ods. Nevertheless, residual risks may remain. This instruction manual highlights potential
hazards where appropriate. Safety notes and warning messages are tagged with one of
the keywords DANGER, WARNING, CAUTION, NOTICE and NOTE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if
not prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and
trouble-free operation.

2 | Product Description
4 / 24 Instruction Manual PANDA WV 0250-2000 C_EN_en
2 Product Description
OFP BPV IN
OSG ODP, MP
OFP NP
ODP, MP MTBOSGOUT1
BGC
BGCBGC
OR
OUT2BGC
IN Suction connection MTB Motor terminal box
OUT Discharge connection OUT2 Lateral discharge connection (Optional)
MP Magnetic plug OFP Oil fill plug
NP Nameplate OSG Oil sight glass
BPV Bypass valve ODP Oil drain plug
OR Oiler (with lip seals only) BGC Barrier gas connection
NOTE
Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum
booster’.

Product Description | 2
Instruction Manual PANDA WV 0250-2000 C_EN_en 5 / 24
NOTE
Illustrations
In this instruction manual the illustrations may differ from the machine appearance.
2.1 Operating Principle
The machine works on the Roots blower principle.
The two oil housings (on each side) allow the lubrication of the gears, bearings and in
certain versions the oil lubricated mechanical seals.
A bypass valve (BPV) limits automatically the differential pressure between inlet and out-
let.
2.2 Application
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic
and non-explosive gases.
Conveying of other media leads to an increased thermal and/or mechanical load on the
machine and is permissible only after a consultation with Busch.
The machine is intended for the placement in a non-potentially explosive environment.
The vacuum booster is used in combination with a backing pump in vacuum system.
The machine is suitable for continuous operation.
Permitted environmental conditions, see Technical Data [►22].
NOTICE
Chemical compatibility of the process gases with the machine component materials.
Risk of corrosion inside the compression chamber which can reduce performance and
its lifetime!
• Check if the process gases are compatible with those following materials:
- Cast iron
- Steel
- Aluminium
- Fluoroelastomer (FKM/FPM)
• In doubt, please contact your Busch representative.

3 | Transport
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3 Transport
WARNING
Suspended load.
Risk of severe injury!
• Do not walk, stand or work under suspended loads.
WARNING
Lifting the machine using the motor eye bolt.
Risk of severe injury!
• Do not lift the machine using the eye bolt fitted to the motor. Only lift the machine as
shown.
NOTICE
In case the machine is already filled with oil.
Tilting a machine that is already filled with oil can cause large quantities of oil to in-
gress into the cylinder.
• Drain the oil prior to every transport or always horizontally transport the machine.
Machine weight:
see the technical data or the nameplate (NP)
Use appropriate slings
• Check the machine for transport damage.
If the machine is secured to a base plate:
• Remove the machine from the base plate.

Storage | 4
Instruction Manual PANDA WV 0250-2000 C_EN_en 7 / 24
4 Storage
• Seal all apertures with adhesive tape or reuse provided caps.
If the machine is to be stored for more than 3 months:
• Wrap the machine in a corrosion inhibiting film.
• Store the machine indoors, dry, dust free and if possible in original packaging
preferably at temperatures between -20 ... 55 °C.
5 Installation
5.1 Installation Conditions
NOTICE
Use of the machine outside of the permitted installation conditions.
Risk of premature failure!
Loss of efficiency!
• Take care that the installation conditions are fully complied with.
• Make sure that the environment of the machine is not potentially explosive.
• Make sure that the ambient conditions comply with the Technical Data [►22].
• Make sure to use a suitable backing pump, if necessary seek advice from your Busch
representative
• Make sure that the environmental conditions comply with the protection class of the
motor and the electrical instruments.
• Make sure that the installation space or location is vented such that sufficient cooling
of the machine is provided.
• Make sure that cooling air inlets and outlets are not covered or obstructed and that
the cooling air flow is not affected adversely in any other way.
• Make sure that the oil sight glass (OSG) remains easily visible.
• Make sure that enough space remains for maintenance work.
• Make sure that the machine is placed or mounted horizontally, a maximum of 1° in
any direction is acceptable.
• Make sure that the machine is secured either from the four feet or from the discharge
flange.
• Check the oil level, see Oil Level Inspection [►15].
• Make sure that all provided covers, guards, hoods, etc. are mounted.
If the machine is installed at an altitude greater than 1000 meters above sea level:
• Contact your Busch representative, the motor should be derated or the ambient
temperature limited.

5 | Installation
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5.2 Connecting Lines / Pipes
• Remove all protective covers before installation.
• Make sure that the connection lines cause no stress on the machine‘s connection; if
necessary use flexible joints.
• Make sure that the line size of the connection lines over the entire length is at least as
large as the connections of the machine.
In case of very long connection lines it is advisable to use larger line sizes in order to
avoid a loss of efficiency. Seek advice from your Busch representative.
5.2.1 Gas Flow Variants
The machine can be installed in different ways:
Lateral discharge (Optional)Vertical gas flow
(In some specific cases, other gas flow variantes may apply)
5.2.2 Suction Connection
WARNING
Unprotected suction connection.
Risk of severe injury!
• Do not put hand or fingers in the suction connection.
NOTICE
Ingress of foreign objects or liquids.
Risk of damage to the machine!
If the inlet gas contains dust or other foreign solid particles:
• Install a suitable filter (5micron or less) upstream from the machine.
Connection size(s):
– DN100, DIN 28404 for WV 0250, 0500 C
– DN160, DIN 28404 for WV 1000, 1500, 2000 C
Depending on the specific order, other connection dimensions may apply.
5.2.3 Discharge Connection
Connection size(s):
– DN100, DIN 28404 for WV 0250, 0500, 1000, 1500 C
– DN160, DIN 28404 for WV 2000 C
Connection size for lateral discharge (OUT2):

Installation | 5
Instruction Manual PANDA WV 0250-2000 C_EN_en 9 / 24
– DN63, DIN 28404 for WV 0250, 0500 C
– DN100, DIN 28404 for WV 1000, 1500 C
– DN160, DIN 28404 for WV 2000 C
Depending on the specific order, other connection dimensions may apply.
• Make sure that the discharged gas will flow without obstruction. Do not shut off or
throttle the discharge line or use it as a pressurised air source.
5.3 Filling Oil
NOTICE
Use of an inappropriate oil.
Risk of premature failure!
Loss of efficiency!
• Only use an oil type which has previously been approved and recommended by
Busch.
For oil type and oil capacity see Technical Data [►22] and Oil [►22].
1
5
3
MAX
MIN
2
Busch Oil
Busch Oil
4
Check oil level
Fill up until the
oiler (OR) is at least
two thirds full
Oil filling at the motor side
(with lip seals only)

5 | Installation
10 / 24 Instruction Manual PANDA WV 0250-2000 C_EN_en
1
4
3
MAX
MIN
2
Busch Oil
Check oil level
Oil filling at the gear side
When the oil filling is achieved:
• Write down the oil change date on the sticker.
Last oil change
__ / __ / ____
Oil type see nameplate
Change interval see
instruction manual
If there is no sticker (part no. 0565 568 959) on the machine:
• Order it from your Busch representative.
5.4 Electrical Connection
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
• Make sure that the power supply for the motor is compatible with the data on the
nameplate of the motor.
• The electrical installation must comply with applicable national and international
standards.
• Provide a lockable disconnect switch on the power line so that the machine is com-
pletely secured during maintenance tasks.