BOC Edwards ESDP12 User manual

A710-02-880
Issue A
Manor Royal, Crawley, West Sussex, RH10 2LW, UK
Telephone: [phone] Fax: [phone]
http://www.bocedwards.com
ESDP12 and ESDP 30 Scroll Pumps
Description Item Number
ESDP12 Scroll Pump A710-02-909
ESDP30 Scroll Pump, 3-phase, 200/208/230/380-460 V, 50/60 Hz A710-03-907
ESDP30 Scroll Pump, 1-phase, 100/115/200/230 V, 50/60 Hz A710-03-909
Instruction Manual

CONTENTS
Section Title Page
1INTRODUCTION 1
1.1 Scope and definitions 1
1.2 Description 2
2 TECHNICAL DATA 5
2.1 Mechanical data 5
2.2 Performance and operating conditions 5
2.3 Electrical data 10
2.4 Noise and vibration data 11
2.5 Materials exposed to vacuum 11
3 INSTALLATION 12
3.1 Safety 12
3.2 System requirements 12
3.3 Unpack and inspect 13
3.4 Reconfigure the ESDP30 pump (optional) 13
3.5 Locate the pump 14
3.6 Connect the electrical supply 15
3.6.1 Introduction 15
3.6.2 Connect to ESDP12 pumps 15
3.6.3 Connect to ESDP30 3-phase pumps 16
3.6.4 Connect to ESDP30 1-phase pumps 16
3.7 Check the direction of motor rotation 20
3.8 Connect the pump-inlet to the vacuum system 20
3.9 Connect the pump-outlet 21
3.10 Leak test the pump installation 21
4 OPERATION 22
4.1 Start-up 22
4.2 Shut-down 22
5 MAINTENANCE 23
5.1 Introduction 23
5.2 Remove debris from the pump 23
5.3 Inspect the inlet screen 23
5.4 Service the pump 23
6 STORAGE AND DISPOSAL 24
6.1 Storage 24
6.2 Disposal 24
DBW 5684-96
ESDP12 and ESDP30 Scroll Pumps i

Section Title Page
7 SPARES AND ACCESSORIES 24
7.1 Introduction 24
7.2 Accessories 24
RETURN OF EDWARDS EQUIPMENT
Illustrations
Figure Title Page
1 The ESDP12 pump 3
2 The ESDP30 pump (3-phase pump shown) 4
3 ESDP12 pump dimensions (mm) 6
4 ESDP30 pump dimensions (mm): 3-phase pump shown 7
5 ESDP12 pumping speed/pressure graph (m3h-1)8
6 ESDP12 pumping speed/pressure graph (cfm) 8
7 ESDP30 pumping speed/pressure graph (m3h-1)9
8 ESDP30 pumping speed/pressure graph (cfm) 9
9 ESDP12 motor terminal-box 17
10 ESDP30 motor terminal-box low-voltage configuration: 3-phase pumps 18
11 ESDP30 motor terminal-box high-voltage configuration: 3-phase pumps 18
12 ESDP30 motor terminal-box low-voltage configuration: 1-phase pumps 19
13 ESDP30 motor terminal-box high-voltage configuration: 1-phase pumps 19
Tables
Table Title Page
1 ESDP12 pump full load current ratings and motor speed 10
2 ESDP30 pump full load current ratings and motor speed: 3-phase pumps 10
3 ESDP30 pump full load current ratings and motor speed: 1-phase pumps 10
ii ESDP12 and ESDP30 Scroll Pumps

1 INTRODUCTION
1.1 Scope and definitions
This manual provides installation, operation and maintenance instructions for the Edwards
ESDP12 and ESDP30 Scroll Pumps. You must use the pumps as specified in this manual.
Read this manual before you install and operate the pumps. Important safety information is
highlighted as WARNING and CAUTION instructions; you must obey these instructions. The
use of WARNINGS and CAUTIONS is defined below.
WARNING
Warnings are given where failure to observe the instruction could result in injury or death
to people.
CAUTION
Cautions are given where failure to observe the instruction could result in damage to the
equipment, associated equipment and process.
The units used throughout this manual conform to the SI international system of units of
measurement. For displacement and pumping speed, the term ’cfm’ is also used to mean
ft3min-1.
The following symbol appears on the pumps:
Caution - risk of electric shock.
ESDP12 and ESDP30 Scroll Pumps 1

1.2 Description
The ESDP12 and ESDP30 Scroll Pumps are compact, reliable vacuum pumps for use on clean
dry processes. The pumps are not suitable for use with explosive, flammable, toxic or corrosive
substances, or substances which contain particulates, powders or vapour.
The body of the pump has stationary scrolls and an orbiting scroll. The orbiting scroll is driven
by the electric pump-motor through an eccentric cam on the motor drive shaft. The movement
of the orbiting scroll, meshed with the stationary scrolls, forms successive crescent shaped
volumes in the pump.
Gas which enters the pump through the inlet is compressed by the movement of the orbiting
scroll and swept towards the centre of the stationary scrolls. The compressed gas enters the
exhaust-port near the centre of the stationary scrolls and is exhausted from the pump through
the outlet.
The inlet of the pump has an inlet screen which prevents the entry of debris into the pump.
The pump is air-cooled and has an electric motor and an hours counter which operates when
the electrical supply to the pump is switched on.
2ESDP12 and ESDP30 Scroll Pumps

Figure 1 - The ESDP12 pump
1. Cooling-fins
2. Inlet
3. Direction of rotation arrow
4. Lifting-handle
5. Pump-motor
6. Motor terminal-box
7. Hours counter
8. Stationary scrolls
9. Mounting-holes (4 off)
10. Outlet
11. Fan cover
12. Rating plate
13. Locknut
ESDP12 and ESDP30 Scroll Pumps 3

Figure 2 - The ESDP30 pump (3-phase pump shown)
1. Fan cover
2. Stationary scrolls
3. Cooling-fins
4. Lifting-eye
5. Motor terminal-box
6. Hours counter
7. Direction of rotation arrow
8. Locating dowels
9. Coupling-cover bolts (6 off)
10. Inlet and inlet screen (in the inlet)
11. Jacking hole
12. Outlet
13. Base-plate
14. Mounting-holes (4 off)
15. Motor end-cover
4ESDP12 and ESDP30 Scroll Pumps

2TECHNICALDATA
2.1 Mechanical data
ESDP12 ESDP30
Overall dimensions See Figure 3 See Figure 4
Mass 25 kg 40 kg*, 46 kg✝
Inlet connection NW25 NW40
Outlet connection NW16 NW25
2.2 Performance and operating conditions
ESDP12 ESDP30
Ambient operating temperature range 5 to 40 oC 5 to 40 oC
Ambient storage temperature range -20 to 60 oC -20 to 60 oC
Ultimate pressure < 1.6 x 10-2 mbar, 1.6 Pa 1 x 10-2 mbar, 1 Pa
Maximum inlet pressure 1000 mbar, 1000 mbar,
1 x 105Pa, 0 psig 1 x 105Pa, 0 psig
Maximum outlet pressure 1150 mbar, 1150 mbar,
1.15 x 105Pa, 2 psig 1.15 x 105Pa, 2 psig
Leak tightness < 1 x 10-4 mbar.ls-1, < 1 x 10-4 mbar.ls-1,
1 x 10-2 Pa.ls-1 1 x 10-2 Pa.ls-1
Displacement (swept volume)
50 Hz 15 m3h-1 (8.8 cfm) 30 m3h-1 (17.6 cfm)
60 Hz 18 m3h-1 (10.6 cfm) 36 m3h-1 (21.2 cfm)
Pumping speed See Figures 5 and 6 See Figures 7 and 8
Peak pumping speed
50 Hz 12.5 m3h-1 (7.3 cfm) 25 m3h-1 (14.7 cfm)
60 Hz 15 m3h-1 (8.8 cfm) 30 m3h-1 (17.6 cfm)
* 3-phase pump
✝1-phase pump
ESDP12 and ESDP30 Scroll Pumps 5

Figure 3 - ESDP12 pump dimensions (mm)
A Front view
B Side view
C View of base
1. Inlet
2. Outlet
3. Mounting-holes: ∅11 (4 off)
6ESDP12 and ESDP30 Scroll Pumps

Figure 4 - ESDP30 pump dimensions (mm): 3-phase pump shown
1. Alternative inlet and outlet positions
2. Inlet
3. Outlet
4. Mounting-holes for M8 bolts (4 off)
Pump A B
1-phase
3-phase 443 372 194 123
ESDP12 and ESDP30 Scroll Pumps 7