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Operating instructions
DUPLEX / TRIPLEX
Vacuum systems
VRD 2072
VRD 3108
Dr.-Ing. K. Busch GmbH
Schauinslandstraße 1, 79689 Maulburg
Germany
0870S03226/-0000_en / Translation of the original operating instructions / Subject to change without notice
10.02.2021

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Summarization of Contents

2 Safety
2.1 Safety devices
Safeguards the vacuum pump with a motor protection switch for automatic shutdown on overload.
2.2 Emergency information
Details the main switch's function as an emergency-stop switch for immediate shutdown.
3 Product description
3.1 View vacuum system VRD (TRIPLEX)
Provides a labeled diagram showing the components of the TRIPLEX VRD vacuum system.
3.2 View of the rotary vane vacuum pump RD
Shows a detailed view of the rotary vane vacuum pump type R5 RD with labeled parts.
3.3 Setup
Describes the configuration of the VRD system, strainer function, gas ballast valve, and piping.
3.4 Function principle
3.4.1 Vacuum system VRD
Explains the soft-start activation of pumps and gas delivery process.
3.4.2 Rotary vane vacuum pump R5 RD
Details the working principle of the R5 RD pump, including oil sealing and filtration.
3.4.3 Gas ballast valve
Explains the function of the gas ballast valve in managing vapor condensation.
4 Transport
Suspended load safety
Warns about risks associated with suspended loads and advises against working below them.
Falling or tipping over hazard
Highlights the risk of severe crushing from the system falling or tipping over.
Transport damage prevention
Advises draining oil before transport if horizontal orientation is not possible to prevent damage.
Lifting system components
Warns about lifting the system by individual components and lifting only as presented.
5 Storage
Drive damage during storage
Warns about potential damage to the drive from long storage periods due to capacitor weakening.
6 Installation
6.1 Installation environment
Details requirements for horizontal setup, anchoring, technical data compliance, and environmental conditions.
6.2 Connection lines/pipes
Foreign bodies in pipes
Warns about foreign bodies in pipes and advises cleaning, filtering, and using appropriate pipe cross-sections.
Pipeline connection stresses
Warns about pipeline stresses and recommends using compensators for connections.
Condensate damage prevention
Advises laying pipes at an angle to prevent condensation from entering the pump.
6.2.1 Gas inlet
Warns against inserting hands or fingers into the gas inlet during connection.
6.2.2 Gas outlet
Gas outlet health risk
Warns about health risks from discharged gas containing oil and advises ensuring sufficient ventilation.
6.3 Electrical connection
Electric shock danger
Warns of lethal danger from electric shock during electrical installation work.
Motor rotation damage risk
Warns that incorrect motor rotation can damage the system and advises checking rotational direction.
6.3.1 Connection of the power supply
Wrong connection damage
Warns about damage from wrong connection and advises wiring according to the circuit diagram.
Wrong rotating direction damage
Warns about motor damage from wrong rotating direction and provides steps to verify and correct it.
7 Start-up
7.1 Indication and control elements
Covers critical warnings for electric shock and burn hazards, and the importance of familiarity with controls.
7.1.1 Topping up with oil
Provides instructions and guidance on checking and topping up the oil level in the vacuum pumps.
7.1.2 Display and control elements at the switching and control cabinet
Describes the indicators and control elements located on the main switch and control cabinet.
7.1.3 Indicators and control elements on the vacuum system
Identifies indicating devices on the vacuum system itself, such as the oil sight glass.
7.2 Operation
Covers operational warnings and procedures, including burn and hearing hazards.
7.3 Conveying condensing vapors
Provides specific procedures and notes for operating the system when conveying condensing vapors.
8 Maintenance
Running vacuum pump hazard
Warns of severe threat to life and limb when performing maintenance on a running vacuum pump.
Contaminated pump hazard
Warns of poisoning danger from contaminated vacuum pumps and advises ventilation before maintenance.
8.1 Maintenance plan
Outlines maintenance intervals and tasks for pumps and control cabinets based on operating hours or time.
8.3 Oil and oil filter change
Operation without oil damage
Warns that operating without oil will cause rapid and severe damage to the vacuum pump.
9 Troubleshooting
Electric shock danger
Warns of lethal danger from live wires during troubleshooting and emphasizes qualified specialists.
Running vacuum pump hazard
Warns of severe threat to life and limb when performing maintenance on a running vacuum pump.
9.1 General faults
Identifies key components for troubleshooting, including float valve, intake screen, and filters.
10 Spare parts and accessories
10.1 Spare parts
Lists spare parts like maintenance kits and vacuum pump oil with their respective part numbers.
10.2 Accessories
Details available accessories such as suction lines for DUPLEX and TRIPLEX systems.
12 Decommissioning and disposal
12.1 Stop operating vacuum system
Procedure for safely shutting down the vacuum system, disconnecting power, and venting.
12.2 Disassembly and disposal
Steps for draining oil, removing filters, and proper disposal of hazardous waste and the unit.
14 Connection values of the vacuum system VRD
14.1 Connection values
Provides electrical connection data (voltage, frequency, power) for VRD 2072 and VRD 3108.
14.2 Signal exchange
Outlines user-accessible signals like status messages and external ON/OFF control.

Table of Contents