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Summary of Contents for LEYBOLD DRYVAC B Series
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Page 2: Table Of Contents
DRYVAC 25/50/100 B Manual Contents Page Safety Information ............ 3 Description............4 1.1 Design and Function........4 1.2 Standard Equipment ........6 1.3 Ordering Data ..........6 1.4 Technical Data ..........7 Installation ............8 2.1 Setting up the Pump ........8 2.2 Electrical Connections ........ -
Page 3: Safety Information
Complete the form at the back of this manual before re- Media compatibility turning equipment to Leybold for service. This form noti- fies us of any toxic or other harmful products (as defined The DRYVAC B models are authorized for clean particle- by the applicable regulations such as the Common Mar- free applications. -
Page 4: Description
Section 1 — Description DRYVAC 25/50/100 B Manual Description 1.1 Design and Function The DRYVAC B models are dry-compression vacuum pumps for pumping clean gases. They are not suitable for pumping gases containing dust or aggressive or cor- rosive media. Refer to Section 1.4 for technical data. Pump operating principle DRYVAC s are four-stage hook-and-claw vacuum pumps. - Page 5 Section 1 — Description DRYVAC 25/50/100 B Manual Key to Figure 2 1 Exhaust silencer 2 Pump stages 3 Electric motor DRYVAC Figure 2 Sectional drawing of a 100B (the 25/50 B models are similar) DRYVAC Figure 3 Simplified schematic of the GA 01.415/2.02 - 7/97...
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Page 6: Standard Equipment
Section 1 — Description DRYVAC 25/50/100 B Manual Electrical Equipment The electrical equipment of the DRYVAC B includes an oil-pressure switch, and three thermal switches. These devices are normally connected to the plant's control equipment for the purpose of controlling the pump. The DRYVAC B is equipped with two thermal switches that monitor pump temperature. -
Page 7: Technical Data
Section 1 — Description DRYVAC 25/50/100 B Manual Figure 5 Pumping speed curves 1.4 Technical Data DRYVAC 100B Pumping Speed 50 Hz operation ..... 25 m · h (14.7 cfm) 45 m · h (26.5 cfm) 100 m · h (59 cfm) 60 Hz operation ..... -
Page 8: Installation
Section 2 — Installation DRYVAC 25/50/100 B Manual The DRYVAC ’s input and output signals must be posi- Installation tively isolated from potentially hazardous voltages in down- line processing. This isolation shall be effective even if there is a defect in the electrical system. Caution Do not connect equipment to termi- 2.1 Setting up the Pump... - Page 9 Section 2 — Installation DRYVAC 25/50/100 B Manual DRYVAC Figure 6 25/50/100 B Switch Connections GA 01.415/2.02 - 7/97...
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Page 10: Ac Power Source
Section 2 — Installation DRYVAC 25/50/100 B Manual DRYVAC Note: All standard s are wired for low voltage unless the customer specifies high voltage on the sales order. Figure 7 Fastening screws for the cover Figure 8 AC power source connections 2.2.2 AC Power Source 2. -
Page 11: Connecting The Cooling Water
Figure 10) and ensure that the pump's intake and ex- Note: Special modifications may be required when using haust ports are open. Save the shipping seals for fu- deionized (DI) water. Consult your Leybold sales or ser- ture use. vice representative for information. -
Page 12: Connecting The Intake Line
Special modifications may be necessary to eliminate Warning noise and vibration when connecting several exhaust All housing panels and covers must lines to a single plenum. Consult your Leybold sales or be reinstalled to protect the opera- service representative. tors against contact with the hot The outlet for the ventilation air is on the top of the pump. -
Page 13: Operation
Section 3 — Operation DRYVAC 25/50/100 B Manual 3.3 Storing and Shipping 3 Operation Shutdown the pump as described in Section 3.2. Warning 3.1 Start-up and Operation During operation, the pump's tem- perature can exceed 100ºC (212ºF). Open the cooling water supply. Always allow the pump to cool down Switch ON the pump. - Page 14 25/50B Water Drain Plug 1. Turn off the water supply. If you ship a pump to Leybold, be sure to indicate whether the pump is free of substances that could be hazardous to 2. Open all necessary ¼-turn retaining clips and take off health or if it is contaminated.
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Page 15: Maintenance
Failure to drain the water can result in the water freezing and bursting the pump housing. If the pump will be returned to Leybold, it must be ac- companied by a listing of all hazardous substances which might be present in or around it. Complete the form at the back of this manual before sending any equipment to Leybold. -
Page 16: Troubleshooting
Section 5 — Troubleshooting DRYVAC 25/50/100 B Manual 5 Troubleshooting Refer- Symptom Possible cause Recommended corrective action ences* 1.1 Pump does not Motor circuit breaker is off. Check setting of motor breaker. Turn ON the 2.2.2 start. breaker. Error in power connection. Check wiring and repair. - Page 17 Section 5 — Troubleshooting DRYVAC 25/50/100 B Manual Refer- Symptom Possible cause Recommended corrective action ences* 3. Oil pressure is Pump rotation direction in incorrect; Disconnect the pump from the power supply. too low. Switch see malfunction 1.2. Interchange two phases at your AC power source. has opened.
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