Edwards XDD 1 115/230 V User manual

A746-02-885
Issue A Original
Instruction Manual
XDD 1 MKII/115/230 V and 24 V DC Diaphragm Pumps
Description Item Number
XDD 1 115/230 V A746-02-983
XDD 1 24 V A746-02-991

Declaration of Conformity
We, Edwards,
Innovation Drive,
Burgess Hill,
West Sussex,
RH15 9TW, UK
declare under our sole responsibility, as manufacturer and person within the EU authorised
to assemble the technical file, that the product(s)
XDD1 AC Diaphragm Pump A746-02-983 *
XDD1 AC Diaphragm Pump A746-03-983 *
XDD1 24 V DC Diaphragm Pump A746-02-991 #
to which this declaration relates is in conformity with the following standard(s) or other
normative document(s)
EN1012-2:1996+A1: 2009 Compressors and Vacuum Pumps. Safety Requirements.
Vacuum Pumps
EN61010-1: 2010 Safety Requirements for Electrical Equipment for Measurement,
Control and Laboratory Use. General Requirements
EN61326-1:2013 Electrical equipment for measurement, control and laboratory use.
(Class A Emissions, EMC requirements. General requirements
Industrial immunity)
C22.2 1010.1-92+A2:97* Safety requirements for Electrical Equipment for Measurement,
Control and laboratory use – Part 1: General requirements
C22.2 61010-1-04+GI1#
(R2009)
UL61010A-1: 2002 Safety requirements for electrical equipment for measurement,
Control and laboratory use – Part 1: General requirements
UL61010-1: 2004
R10.08
EN50581: 2012 Technical Documentation for the Assessment of Electrical and
Electronic Products with respect to the Restriction of Hazardous
Substances
and fulfils all the relevant provisions of
2006/42/EC Machinery Directive
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility (EMC) Directive
2011/65/EU Restriction of Certain Hazardous Substances (RoHS) Directive
Note: This declaration covers all product serial numbers from the date this Declaration was
signed onwards.
11.05.2016, Burgess Hill
Mr Peter Meares
Senior Technical Support Manager, General Vacuum Date and Place
P200-04-800 Issue E
This product has been manufactured under a quality management system certified to ISO 9001:2008

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Contents
A746-02-885 Issue A
Contents
Section Page
1 Introduction .......................................................................................1
1.1 Safety information ....................................................................................................... 1
2 Technical data ....................................................................................7
3 Installation ....................................................................................... 11
3.1 Electrical connection ...................................................................................................11
3.1.1 XDD1 dual-voltage motor ..............................................................................................11
3.1.2 XDD1 24 V dc ............................................................................................................12
3.2 Configure the XDD1 24V dc internal speed setting ................................................................13
3.3 Configuring the XDD1 24V dc for external analogue (0 - 10 V) speed control .................................13
3.4 Notes regarding the motor speed ....................................................................................14
4 Use and operation .............................................................................. 15
4.1 Installing in a vacuum system .........................................................................................15
4.2 Prior to use ..............................................................................................................15
4.3 During operation ........................................................................................................15
4.3.1 Pumps with dual-voltage motor ......................................................................................15
4.3.2 Pumps with 24 V dc voltage ...........................................................................................15
4.4 Shutdown .................................................................................................................16
4.4.1 Short term ...............................................................................................................16
4.4.2 Long term ................................................................................................................16
5 Maintenance ..................................................................................... 17
5.1 Replacing diaphragms and valves ....................................................................................17
5.1.1 Cleaning and inspecting the pump heads ...........................................................................20
5.1.2 Replacing the diaphragm ..............................................................................................22
5.1.3 Assembling pump heads ...............................................................................................24
5.1.4 Assembling fittings .....................................................................................................28
5.1.5 If the pump does not achieve the ultimate pressure ..............................................................28
6 Storage and disposal ........................................................................... 31
6.1 Storage ...................................................................................................................31
6.2 Disposal ...................................................................................................................31
7 Spares and accessories ......................................................................... 33
7.1 List of spare parts ......................................................................................................33
For return of equipment, complete the HS Forms at the end of this manual.
dcs/8515/04/10

A746-02-885 Issue A
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Contents
Illustrations
Figure Page
1 General view of XDD 1 with dual-voltage motor .................................................................... 4
2 General view of XDD 1 24 V DC ........................................................................................ 5
3 Dimensional drawing XDD 1 (dual-voltage motor) .................................................................. 9
4 Dimensional drawing XDD 1 24 V DC .................................................................................10
5 Adjust the supply voltage .............................................................................................11
6 Replacing the motor fuse (dual-voltage motor) ....................................................................12
7 Internal speed setting ..................................................................................................13
8 View of the disassembled pump head parts ........................................................................19
9 Tools required ...........................................................................................................20
10 Remove the fitting at the pump head ...............................................................................20
11 Remove the handle .....................................................................................................21
12 Remove the housing cover and head cover .........................................................................21
13 Remove the head cover from the housing cover ...................................................................22
14 Lift the diaphragm ......................................................................................................23
15 Position a new diaphragm .............................................................................................23
16 Diaphragm clamping disc ..............................................................................................24
17 Assemble the diaphragm assembly to the connecting rod .......................................................24
18 Position the diaphragm ................................................................................................25
19 Assemble the head cover and valves ................................................................................25
20 Scheme pump head with head covers ...............................................................................26
21 Scheme pump head with head covers and valves ..................................................................26
22 Position the housing cover ............................................................................................27
23 Assemble the handle ...................................................................................................27
24 Assemble the fitting at the pump head .............................................................................28
Tables
Table Page
1 Electrical data ............................................................................................................ 7
2 Performance data ........................................................................................................ 7
3 Environmental operating and storage data .......................................................................... 7
4 Mechanical data .......................................................................................................... 8
5 Materials data ............................................................................................................ 8
6 Logic interface connector pins .......................................................................................12
7 Troubleshooting .........................................................................................................29
8 Spare parts ...............................................................................................................33
Trademark credits
Viton®is trademark of DuPont Dow Elastomers L.L.C.

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Introduction
A746-02-885 Issue A
1Introduction
1.1 Safety information
Remove all packing material, remove the product from its packing-box, remove the protective covers from the inlet
and outlet ports and keep them, inspect the equipment. If the equipment is damaged, notify the supplier and the
carrier in writing within three days; state the item number of the product together with the order number and the
supplier’s invoice number. Retain all packing material for inspection.
If the equipment is not used immediately, replace the protective covers. Store the equipment in suitable conditions.
zRead and obey this manual before installing or operating the equipment.
zTransport the pump at the provided handle or the recessed grip.
The following symbols appear in this document:
Use the equipment for the intended use only, i. e. for generation of vacuum.
zPrevent any part of the human body from coming in contact with the vacuum.
zObey notes on correct vacuum and electrical connections.
zMake sure that the individual components are only connected, combined and operated according to their
design and as indicated in the instructions for use.
WARNING
Do not use the equipment if it is damaged.
Warning - refer to accompanying documentation.
Warning - Isolate equipment from mains. - risk of electric shock.
Warning - Hot surfaces.
Warning - Use protective equipment.

A746-02-885 Issue A
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Introduction
zIf the equipment is brought from cold environment into a room for operation, allow the equipment to warm
up (pay attention to water condensation on cold surfaces).
zMake sure ventilation is adequate if pump is installed in a housing or if ambient temperature is elevated.
Obey all relevant safety requirements (regulations and guidelines) and adopt suitable safety measures.
zProvide a firm level platform for the equipment and check that the system to be evacuated is mechanically
stable and that all fittings are secure.
Note: Flexible elements tend to shrink when evacuated.
Due to the high compression ratio of the pumps, pressure at the outlet port might be generated being higher than
the max. permitted pressure compatible with the mechanical stability of the system.
Ensure that the system design does not allow the exhaust pipeline to become blocked:
zAvoid overpressure of more than 0.2 bar in case inert gas is connected.
zThe diameter of the inlet and outlet pipeline should be at the least as large as the diameter of the pump
connection pipelines.
zAdopt suitable measures in case of differences, e. g. using the equipment outdoors, installation in altitudes
of more than 1000 m above mean sea level, conductive pollution or moisture.
WARNING
Obey maximum permitted pressures and pressure differences, see Section 2 Technical data. Do
not operate the pump with overpressure at the inlet.
WARNING
Do not permit any uncontrolled pressurizing (e. g. make sure that the exhaust pipeline cannot
become blocked). If you have an exhaust-isolation valve, make sure that you cannot operate the
equipment with the valve closed. Risk of bursting!
WARNING
Pay attention to symbol “hot surfaces” on the equipment. Adopt suitable measures to prevent any
danger arising from the formation of hot surfaces or electric sparks.
WARNING
The pumps are not suitable to pump dangerous or explosive gases or explosive or flammable
mixtures. Ensure that the materials of the wetted parts are compatible with the pumped
substances, see Section 2 Technical data.
Adopt suitable measures to prevent the release of dangerous, explosive, corrosive or polluting
fluids.
Use inert gas for gas ballast or venting if necessary.
The user must take suitable precautions to prevent any formation of explosive mixtures in the
expansion chamber. In case of a diaphragm crack, mechanically generated sparks, hot surfaces or
static electricity may ignite these mixtures.
Take adequate precautions to protect people from the effects of dangerous substances (chemicals,
thermal decomposition products of fluoroelastomers), wear appropriate safety clothing and safety
glasses.
Obey applicable regulations when disposing of chemicals. Take into consideration that chemicals
may be polluted.

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Introduction
A746-02-885 Issue A
Manual reset is necessary. Switch off the pump or isolate the equipment from mains. Wait approx. five minutes
before restarting the pump.
Due to the residual leak rate of the equipment, there may be an exchange of gas, albeit extremely slight, between
the environment and the vacuum system.
zAdopt suitable measures to prevent contamination of the pumped substances or the environment.
Ensure that in case of failure, the pump and the vacuum system turn always into a safe status.
zIn case of leaks in the manifold pumped substances may leak into the environment or in the pump housing or
the motor.
zObey especially all notes on use and operation and on maintenance.
zFailure of the pump (e. g. due to power failure) must not lead to a critical dangerous situation under any
circumstances.
Use only genuine spare parts and accessories.
zOtherwise safety and performance of the equipment as well as the electromagnetic compatibility of the
equipment might be reduced.
WARNING
Pumps with dual-voltage motor: The motor is shut down by a thermal cutout in the winding.
WARNING
Pumps with 24 V DC voltage: The motor is protected by a temperature sensor at the circuit board
(current limitation if the temperature at the circuit board is higher than 70°C).
Avoid high heat supply (e. g. due to hot process gases).
Ensure sufficient air admittance if pump is installed in a housing.

A746-02-885 Issue A
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Introduction
Figure 1 - General view of XDD 1 with dual-voltage motor
1. Handle (removable)
2. Inlet (small flange) NW16
3. Pump feet (adjustable)
4. Voltage selector switch
5. Fuse holder
6. Mains switch
7. Mains input
8. Outlet (silencer)

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Introduction
A746-02-885 Issue A
Figure 2 - General view of XDD 1 24 V DC
1. Cover of the circuit board
2. Inlet (small flange) NW 16
3. Male 15 pin D-connector
4. Outlet (silencer) at lower side
5. Screw to secure cover

A746-02-885 Issue A
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This page has been intentionally left blank.

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Technical data
A746-02-885 Issue A
2Technicaldata
Table 1 - Electrical data
Parameter XDD1 115/230 V 50/60 Hz XDD1 24 V DC
Motor power kW 0.08 0.064
Maximum permitted range of supply voltage
(±10%) Attention*
100-120 V 50/60 Hz
200-230 V 50/60 Hz
*Voltage selection switch
24 V DC
Maximum rated current:
100-120 V 50/60 Hz A 1.6 / 1.7 -
200-230 V 50/60 Hz A 0.8 / 0.85 -
24 V DC A - 7
Motor protection Thermal cut-out, manual reset Temperature sensor on the PCB
(current limitation)
Fuse 20 mm x 5 mm, 250 V,
2.5 A type T
Table 2 - Performance data
Parameter XDD1 115/230 V
50/60 Hz XDD1 24 V DC
Pumping speed (ISO 21360) m3/h 1.2 / 1.4 1.7 (2200 rpm)
1.4 (1700 rpm)*
*Factory set
Ultimate vacuum (absolute) mbar 1.5 < 1.0 (700 rpm)
No-load speed min-1 1500 / 1800 100 - 2200
Maximum permissible outlet pressure (absolute) bar 1.1
Maximum pressure difference between inlet and outlet bar 1.1
Table 3 - Environmental operating and storage data
Parameter XDD1 115/230 V XDD1 24 V DC
Degree of protection IEC 529 IP 40 IP 20
Permitted ambient temperature storage / operation °C -10 to +60 / +10 to +40
Permitted relative atmospheric moisture during
operation (no condensation) %30to85
Maximum operating altitude m 2000
IEC rated pollution degree 2
Sound level dBA 45
Area of use Indoor use only

A746-02-885 Issue A
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Technical data
Table 4 - Mechanical data
Parameter XDD1 115/230 V XDD1 24 V DC
Mass kg 6.7 4.1
Overall dimensions Refer to Figure 3 Refer to Figure 4
Inlet connection Small flange NW 16
Outlet connection Silencer G 1/8 inch
Table 5 - Materials data
Components Wetted parts
Housing cover Aluminium
Head cover Aluminium
Diaphragm clamping disc Aluminium
Valve FPM (e.g. Viton®)
Diaphragm PTFE -FPM (e.g. Viton®) sandwich
Inlet (small flange) Stainless steel
Outlet (silencer) Aluminium / silicon caoutchouc
Hose PE
Fitting Aluminium anodized

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Technical data
A746-02-885 Issue A
Figure 3 - Dimensional drawing XDD 1 (dual-voltage motor)

A746-02-885 Issue A
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Technical data
Figure 4 - Dimensional drawing XDD 1 24 V DC

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Installation
A746-02-885 Issue A
3 Installation
Note: A suitably trained or qualified technician must carry out the following procedures.
3.1 Electrical connection
3.1.1 XDD1 dual-voltage motor
CAUTION
Ensure that the motor is correctly configured for your electrical supply. If you operate the pump when the motor
is not correctly configured for the electrical supply, you will damage the motor.
CAUTION
Do not change the voltage selector switch while the pump is connected to the mains supply.
Figure 5 - Adjust the supply voltage
1. Selecting 115 covers a voltage supply range of 100 V to 120 V.
2. Selecting 230 covers a voltage supply range of 200 V to 240 V.
Ensure that the voltage shown on the voltage selector switch (Figure 5, item 1) corresponds with your electrical
supply voltage. If it does not, you must change the configuration of the pump motor using the voltage selector switch
to match your supply voltage. Use a screw driver to adjust the selector switch to the correct voltage.
WARNING
Ensure that the electrical installation of the XDD1 mains pump conforms with your local and
national safety requirements. It must be connected to a suitably fused and protected electrical
supply and suitable earth point. For electrical data refer to Table 1.
1. Voltage selector switch

A746-02-885 Issue A
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Installation
Figure 6 - Replacing the motor fuse (dual-voltage motor)
1. Carefully remove the fuse holder at the side of the pump (refer to Figure 1, item 5).
2. Replace the defective fuse with a 2.5 A type T and secure the fuse carrier back into its holder.
3.1.2 XDD1 24 V dc
The pump has been factory set to a constant pumping speed when connected to a 24 V DC (=/-10%) supply. The pump
can also be controlled using an external analogue 0-10 V signal. Use a suitable connector mating half (not supplied)
to connect the electrical supplies and your control equipment to the connector on the logic interface cable. When
you make the electrical connections to the XDD 1, refer to Table 6 for full details of the logic interface connections.
Table 6 - Logic interface connector pins
Pin number Signal Use
2 Control / monitor: 0 V signal -
4 XDD 1 identity
9 Speed (0-10 V) To control motor speed
8, 13, 14 Electrical supply: 0 V Use all pins for connection!
1, 6, 11 Electrical supply 24 V Use all pins for connection!

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Installation
A746-02-885 Issue A
Figure 7 - Internal speed setting
3.2 Configure the XDD1 24V dc internal speed setting
There are two internal speed settings, use the following procedure to adjust the internal speed control (refer to
Figure 7).
Remove the screw which secures the cover to the circuit board (refer to Figure 2, item1) Move the cover carefully
and only as far as necessary. Using a screw driver, turn the potentiometer to one of two positions. Set to position 2
for normal speed or position 3 if maximum throughput is required (refer to Figure 7). Assemble the cover in reverse
order.
3.3 Configuring the XDD1 24V dc for external analogue (0 - 10 V)
speed control
Remove the screw which secures the cover to the circuit board (refer to Figure 2, item1) Move the cover carefully
and only as far as necessary. Using a screw driver turn the potentiometer anti-clockwise to position 1 (refer to
Figure 7). Assemble the cover in reverse order. Apply external analogue 0-10 V signal for motor speed control.
Voltage input: analogue 0 V....10 V
Note: Pump runs smoothly only at speeds > 200 rpm ( > ~0.9 V).
<0.5 V : Pump stopped
0.5 V to 10 V : Linear increase of the motor speed (~100 rpm to 2200 rpm)
1. Potentiometer setting

A746-02-885 Issue A
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Installation
3.4 Notes regarding the motor speed
Operating the pump at high motor speeds increases the pump throughput, this will also cause the pump to generate
more heat. Ensure there is adequate ventilation especially when using the pump within confined spaces or
enclosures.
Operating the pump at low motor speeds increases the ultimate vacuum performance, this will also increase the
lifetime of the diaphragm and valves.

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Use and operation
A746-02-885 Issue A
4Useandoperation
4.1 Installing in a vacuum system
The pump can be mounted in any orientation.
Avoid throttling losses by using connecting pipes with large diameter and keep them as short as possible.
Reduce the transmission of vibration and prevent loading due to rigid pipelines. Insert elastic hoses or flexible
elements as couplings between the pump and rigid pipes.
Note: Flexible elements tend to shrink when evacuated.
Use a suitable valve to isolate the pump from the vacuum system to allow the pump to warm up before condensable
vapours are pumped or to clean the pump before it is switched off.
Connect the exhaust to a suitable treatment plant to prevent the discharge of dangerous gases and vapours to the
surrounding atmosphere. Use a catchpot to prevent the drainage of contaminated condensate back into the pump.
4.2 Prior to use
Note: Max. ambient temperature: 40 °C.
Make sure ventilation is adequate if pump is installed in a housing or if ambient temperature is elevated. Keep a
distance of min. 20 cm between fans and ambient parts.
When assembling, ensure vacuum-tightness. After assembly, check the complete system for leaks.
4.3 During operation
CAUTION
Do not start or operate the pump if pressure at the outlet is higher than 1.1 bar absolute. Attempts to start or
operate the pump at higher pressure may cause blockade and damage of the motor.
The pump achieves its pumping speed, ultimate total vacuum and vapour pumping rate only at operating
temperature (after approx. 15 minutes).
Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves will be damaged, if liquids are
pumped in significant amounts.
4.3.1 Pumps with dual-voltage motor
Motor is shut down by a thermal cutout in the winding. Manual reset is necessary. Switch off the pump or isolate the
equipment from mains. Wait approx. five minutes before restarting the pump. Identify cause of failure and eliminate.
Note: Pump starts again after power failure.
4.3.2 Pumps with 24 V dc voltage
The motor is protected by a temperature sensor at the circuit board (current limitation if the temperature at the
circuit board is higher than 70°C).

A746-02-885 Issue A
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Use and operation
4.4 Shutdown
4.4.1 Short term
4.4.2 Long term
zTake measures as described in section short-term shutdown.
zSeparate pump from the apparatus.
zClose inlet and outlet port (e. g. with transport caps).
zStore the pump in dry conditions.
Fault Action
Has the pump been exposed to condensate? Allow the pump to continue to run at atmospheric
pressure with inlet open for a few minutes.
Has the pump been exposed to media which may
damage the pump materials or forms deposits?Check and clean pump heads if necessary.