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

Figure 5 - ESDP12 pumping speed/pressure graph (m3h-1)
Figure 6 - ESDP12 pumping speed/pressure graph (cfm)
1. 60 Hz
2. 50 Hz
1. 60 Hz
2. 50 Hz
8ESDP12 and ESDP30 Scroll Pumps

Figure 7 - ESDP30 pumping speed/pressure graph (m3h-1)
Figure 8 - ESDP30 pumping speed/pressure graph (cfm)
1. 60 Hz
2. 50 Hz
1. 60 Hz
2. 50 Hz
ESDP12 and ESDP30 Scroll Pumps 9

2.3 Electrical data
ESDP12 ESDP30
Electrical supply See Table 1 See Tables 2 and 3
Full load current ratings See Table 1 See Tables 2 and 3
Motor type 0.4 kW, 1-phase,
squirrel cage induction motor,
TEFC, 4-pole, B class insulation
capacitor run.
Electrical supply voltage
100 115 200 230
Full load current rating: A 50 Hz 4.2 - 2.0 2.2
60 Hz 4.3 3.8 2.2 1.9
Motor rotational speed: r.min-1 50 Hz 1430 - 1420 1440
60 Hz 1720 1740 1710 1730
Table 1 - ESDP12 pump full load current ratings and motor speed
Electrical supply voltage
200 208 230 380 415 460
Full load current rating: A 50 Hz 2.7 - - 1.57 1.63 -
60 Hz 2.6 2.5 2.5 - - 1.47
Motor rotational speed: r.min-1 50 Hz 1460 - - 1470 1470 -
60 Hz 1740 1750 1760 - - 1770
Table 2 - ESDP30 pump full load current ratings and motor speed: 3-phase pumps
Electrical supply voltage
100 115 200 230
Full load current rating: A 50 Hz 8.5 - 4.3 3.9
60 Hz 7.7 6.7 3.9 3.4
Motor rotational speed: r.min-1 50 Hz 1430 - 1430 1450
60 Hz 1720 1740 1720 1740
Table 3 - ESDP30 pump full load current ratings and motor speed: 1-phase pumps
10 ESDP12 and ESDP30 Scroll Pumps

2.4 Noise and vibration data
ESDP12 ESDP30
Noise level (at 1 m from the pump) ≤58 dB(A) <60 dB(A)*
<62 dB(A)✝
Vibration velocity < 1.5 mm.s-1 < 1.5 mm.s-1
2.5 Materials exposed to vacuum
PTFE (polytetrafluoroethylene) impregnated aluminium, stainless steel, steel bearings, PFPE
(perfluoropolyether) grease, fluoroelastomer seals.
* 3-phase pump
✝1-phase pump
ESDP12 and ESDP30 Scroll Pumps 11

3INSTALLATION
3.1 Safety
WARNING
Obey the safety instructions given below and take note of appropriate precautions. If you
do not, you can cause injury to people and damage to equipment.
•A suitably trained and supervised technician must install your ESDP pump.
•Ensure that the installation of the pump conforms with all the requirements of your local
and national safety standards. Ensure that your control system is configured so that the
pumping system is safe if the electrical supply fails.
•Ensure that the installation technician is familiar with the safety precautions for the gases
processed by the pumping system. Wear the appropriate safety-clothing when you come
into contact with contaminated components. Vent and purge the pumping system before
you start installation work.
•Disconnect the other components in the pumping system from the electrical supply so that
they cannot be operated accidentally.
•Do not reuse ’O’ rings and Co-Seals if they are damaged.
3.2 System requirements
Consider the following points when you design your pumping system:
•Support the vacuum pipelines to stop the transmission of stress to the pipeline joints.
•You must be able to isolate the pump inlet and outlet from the atmosphere and from your
vacuum system if you have pumped dangerous gases.
12 ESDP12 and ESDP30 Scroll Pumps

3.3 Unpack and inspect
1. Place the carton in a convenient position with a fork-lift truck or a pallet truck.
2. Remove all packing materials.
3. If the pump is an ESDP12, use the lifting-handle (Figure 1, item 4) to lift the pump from its
carton. If the pump is an ESDP30, attach suitable lifting-gear to the lifting eye (Figure 2,
item 4) and remove the pump from its carton; do not try to lift the pump by hand.
4. Remove all protective covers and inspect the pump. If the pump is damaged, notify your
supplier and the carrier in writing within three days; state the Item Number of the pump
together with your order number and your supplier’s invoice number. Retain all packing
materials for inspection. Do not use the pump if it is damaged.
5. If the pump is not to be used immediately, replace the protective covers. Store the pump in
suitable conditions as described in Section 6.1.
3.4 Reconfigure the ESDP30 pump (optional)
The ESDP30 pump is supplied with the inlet and outlet-flanges at the side of the pump (as shown
in Figure 2) to prevent blockage of the pump-inlet or outlet by the process gases pumped. If you
will only use the pump on a clean and dry process, you can move the inlet and outlet-flanges to
the top of the pump; refer to Figure 2 and use the following procedure:
1. Lift the pump into a vertical position so that it rests on the motor end-cover (15).
2. Undo and remove the four bolts which secure the fan cover (1) to the body of the pump.
Remove the fan cover.
3. Undo and remove the six bolts (9) which secure the body of the pump to the motor.
4. Lift the body of the pump clear of the motor. If you cannot lift the body of the pump off of
the motor, place two of the bolts removed in Step 3 in the jacking holes (11), then tighten the
bolts to push the body of the pump away from the motor.
5. Turn the body of the pump through 90o, so that the inlet and outlet-flanges are at the top of
the pump (that is, opposite the base-plate).
6. Ensure that the flexible coupling and the two locating dowels (8) are correctly aligned, then
lower the body of the pump back onto the motor shaft.
7. Turn the cooling-fan and check that the pump mechanism rotates smoothly. If you cannot
turn the fan easily, the body of the pump is not correctly aligned on the motor.
8. Use the six bolts removed in Step 3 to secure the body of the pump to the motor.
9. Use the four bolts removed in Step 2 to secure the fan cover to the body of the pump.
10. Turn the pump over so that it rests on the base-plate (13).
ESDP12 and ESDP30 Scroll Pumps 13

3.5 Locate the pump
CAUTION
Locate the pump so that it is on a firm, level surface (less than 5oinclination). If you do
not, seals in the pump may wear quickly and the performance of the pump will deteriorate.
CAUTION
Do not operate the pump in direct sunlight. If you do, the pump may overheat and fail.
Ensure that the pump is not installed in an enclosed area. The ESDP12 pump requires a
cooling-air flow rate of 4 m3min-1; the ESDP30 pump requires a cooling-air flow rate of
5 m3min-1. The cooling-fans will providethis flow rateif thepump isnotinstalledin a restricted
space.
To locate the ESDP12 pump:
•Refer to Figure 1.
•Use the lifting-handle (4) to lift the pump and move it into its final operating position. The
pump can be free-standing or you can use fixing-bolts throughthe mounting-holes(9) in the
base-plate of the pump to secure the pump to the floor.
To locate the ESDP30 pump:
•Refer to Figure 2.
•Attach suitable lifting gear to the lifting-eye (4) on the pump and move the pump to its final
operating position. The pump can be free-standing or you can use fixing-bolts through the
mounting-holes (14) in the base-plate of the pump to secure the pump to the floor.
If you want, you can fit vibration isolators below the base-plate. Suitable vibration isolators are
available as optional accessories (see Section 7).
14 ESDP12 and ESDP30 Scroll Pumps

3.6 Connect the electrical supply
CAUTION
The motor is not thermally protected. You must provide external overload protection.
Branch circuit fuses must have a maximum rating of 115% of the full load current rating
given in Section 2.
3.6.1 Introduction
Connect the electrical supply to the motor as described in Section 3.6.2, 3.6.3 or 3.6.4. Connect
the supply through a contactor which incorporates a circuit breaker suitable for the full load
current ratings given in Section 2.
3.6.2 Connect to ESDP12 pumps
1. Refer to Figure 1. Undo and remove the screws which secure the cover to the motor
terminal-box (6), then remove the cover.
2. Refer to Figure 9. Check your electrical supply voltage and frequency. The universal motor
of the pump can be configured for ’high-voltage’ operation (200-230 V), as shown in detail
A, or for ‘low-voltage’ operation (100-115 V) as shown in detail B. The pump is supplied
configured for ’high-voltage’ operation. If necessary, reconfigure the links (1) in the
terminal-box to operate with your supply voltage.
3. Fit a suitable 20 mm cable-gland to the cable leadthrough hole. If your cable is too large to
pass through a 20 mm cable-gland, fit a 20 mm to 25 mm female thread adaptor to the cable
entry-hole, and fit a 20 mm cable-gland to the adaptor.
4. Pass the electrical supply cable through the cable-gland.
5. Connect the neutral and live wires in the cable (N, L) to the terminals as shown in detail A
or B, depending on your electrical supply voltage, then connect the earth (ground) wire in
the cable to the earth (ground) stud in the terminal-box.
6. Tighten the cable-gland.
7. Connect the wires at the other end of the cable to your electrical supply.
8. Refer to Figure 1. Refit the cover to the motor terminal-box (6) and secure with the screws
removed in Step 1.
ESDP12 and ESDP30 Scroll Pumps 15

3.6.3 Connect to ESDP30 3-phase pumps
1. Refer to Figure 2. Undo and remove the screws which secure the cover to the motor
terminal-box (5), then remove the cover.
2. Check your electrical supply voltage and frequency. The universal motor of the pump can
be configured for ‘low-voltage’ operation (200-230 V) as shown in Figure 10, or for
’high-voltage’ operation (380-460 V), as shown in Figure 11. If necessary, reconfigure the
motor to operate with your supply voltage.
3. Fit a suitable 20 mm cable-gland to the cable leadthrough hole. If your cable is too large to
pass through a 20 mm cable-gland, fit a 20 mm to 25 mm female thread adaptor to the cable
entry-hole, and fit a 20 mm cable-gland to the adaptor.
4. Pass the electrical supply cable through the cable-gland.
5. Connect the phase wires in the cable (L1, L2, L3) to the U, V and W terminals as shown in
Figures 10 or 11, depending on your electrical supply voltage, then connect the earth
(ground) wire in the cable to the earth (ground) stud in the terminal-box.
6. Tighten the cable-gland and replace the terminal-box cover.
7. Connect the wires at the other end of the cable to your electrical supply.
8. Refer to Figure 2. Refit the cover to the motor terminal-box (5) and secure with the screws
removed in Step 1.
3.6.4 Connect to ESDP30 1-phase pumps
1. Refer to Figure 2. Undo and remove the screws which secure the cover to the motor
terminal-box (5), then remove the cover.
2. Check your electrical supply voltage and frequency. The universal motor of the pump can
be configured for ‘low-voltage’ operation (100-115 V) as shown in Figure 12, or for
’high-voltage’ operation (200-230 V), as shown in Figure 13. If necessary, reconfigure the
motor to operate with your supply voltage.
3. Fit a suitable 20 mm cable-gland to the cable leadthrough hole. If your cable is too large to
pass through a 20 mm cable-gland, fit a 20 mm to 25 mm female thread adaptor to the cable
entry-hole, and fit a 20 mm cable-gland to the adaptor.
4. Pass the electrical supply cable through the cable-gland.
5. Connect the neutral and live wires in the cable (N, L) to the X and Z terminals as shown in
Figures 12 or 13, depending on your electrical supply voltage, then connect the earth
(ground) wire in the cable to the earth (ground) stud in the terminal-box.
6. Tighten the cable-gland.
7. Connect the wires at the other end of the cable to your electrical supply.
8. Refer to Figure 2. Refit the cover to the motor terminal-box (5) and secure with the screws
removed in Step 1.
16 ESDP12 and ESDP30 Scroll Pumps

Figure 9 - ESDP12 motor terminal-box
A High-voltage configuration
B Low-voltage configuration 1. Links 2. Electrical supply cable
ESDP12 and ESDP30 Scroll Pumps 17