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A301-51-880 Issue T
Figure 9 - EH4200/EH4200IND dimensions (mm)
1. Lifting-bolts
EH4200
EH4200IND
A
1380
1428
B
120
220
C
470
523
D
260
311
E
200
240
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Edwards and the Edwards logo are trademarks of Edwards Limited.
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Figure 10 - EH4200C/EH4200 T3/EH4200 T160/T4 dimensions (mm)
1. Lifting-bolts
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A301-51-880 Issue T
3
Installation
3.1
Safety
z
A suitably trained and supervised technician must install your EH pump.
z
Ensure that the installation technician is familiar with the safety procedures which relate to the products
pumped. Wear the appropriate safety-clothing when you come into contact with contaminated components.
Dismantle and clean contaminated components inside a fume-cupboard.
z
Consult Edwards publication P400-40-100 (Vacuum pump and vacuum system safety - chemical and industrial
systems) before you install and use the EH pump to process hazardous or flammable materials.
z
Vent and purge the pumping system before you start installation work.
z
Check that all the required components are available and of the correct type before you start work.
z
Ensure that debris does not get into the EH pump when you install it.
z
Disconnect the other components in the pumping system from the electrical supply so that they cannot be
operated accidentally.
z
Do not reuse ‘O’ rings and Co-Seals.
z
Ensure that the cooling-air flow through the pump-motor cooling-fan cannot be obstructed.
z
Ensure that all electrical cables, nitrogen pipelines and cooling-water pipelines are safely positioned,
secured and routed, so that they do not present a trip hazard.
z
Provide adequate access to all pump servicing points and oil-level sight-glasses.
z
Leak-test the system after installation work is complete and seal any leaks found to prevent leakage of
hazardous substances out of the system and leakage of air into the system.
3.2
System requirements
Consider the following points when you design your pumping system:
z
You must use a suitable backing pump: refer to
Section 2.1
and
2.2
.
z
The EH pump must be mounted on a firm, level surface.
z
Vacuum pipelines must be adequately supported to stop the transmission of stress to pipeline joints.
z
If necessary, incorporate flexible pipelines in your system pipelines to reduce the transmission of vibration
and to prevent loading of the coupling joints. If you use flexible pipelines, you must ensure that you use
flexible pipelines which have a maximum pressure rating which is greater than the highest pressure that can
be generated in your system.
z
You must limit the temperature of the inlet gas to be no greater than the temperature classification of the
system (if applicable).
z
Ensure that your design incorporates all appropriate safety precautions if toxic, inflammable or explosive
gases or particulates will be pumped.
WARNING
Obey the safety instructions listed below and take note of appropriate precautions. If you do not,
you can cause injury to people and damage to equipment.
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Edwards and the Edwards logo are trademarks of Edwards Limited.
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You must be able to purge with an inert gas when you shut down the pumping system to dilute dangerous
gases to safe concentrations. Consult Edwards or your supplier if you are in doubt.
If the EH pump is to be fitted in a new system, ensure that all preliminary pipelines have been installed and that a
suitable base for the EH pump has been prepared before you start installation.
Check that the following services and facilities are available for connection to the EH pump:
z
Cooling-water supply and return
z
Hydrokinetic drive/gearbox purge nitrogen supply (chemical and ATEX compliant EH pumps only)
z
Electrical supply
z
Exhaust-extraction system
z
Inlet-screen (if required, to prevent the ingress of debris during commissioning): refer to
Section 1.3.6
3.3
Unpack and inspect
Use the following procedure to unpack and inspect the EH pump:
1. Place the pallet in a convenient position with a fork lift truck or a pallet truck.
2. Remove all packing materials.
3. Use suitable lifting-gear to remove the EH pump from its pallet:
z
On all pumps, attach the lifting-gear to the centre pair of lifting-bolts (
Figure 1
to
10
, item 1) on the EH
pump.
z
All of the EH2600 model pumps and EH4200C, EH4200 T3X and EH4200 T160/T4X pumps have centres of mass
which are offset towards the motor. On these pumps, you must fit an additional support strap to the motor
(behind the lifting-bolt) to support the pump, and prevent it from tilting when you lift it.
Do not try to lift the EH pump by hand (see
Section 2.4
for the mass of your EH pump).
4. Remove all protective covers and inspect the EH pump. If the EH pump is damaged, notify your supplier and the
carrier in writing within three days; state the Item Number of the EH pump together with your order number and
your supplier’s invoice number. Retain all packing materials for inspection. Do not use the EH pump if it is
damaged.
5. If the EH pump is not to be used immediately, refit the protective covers. Store the EH pump in suitable
conditions as described in
Section 6.1
.
WARNING
Use suitable lifting equipment to move the EH pump, in accordance with the method described
below. If you do not, you can injure yourself or damage the EH pump. Refer to
Section 2.4
for the
mass of the EH pump.