Edwards iXM Series, Instruction Manual

Page: 90 / 104

1. Purge the system and shut down as described in Shut down on page 62 and let the
system cool down.
2. Isolate the power and disconnect the mating half from the electrical supply
connector, then isolate the water and the gas purge supply. Switch off the nitrogen
and cooling water supplies. Disconnect the nitrogen supply, taking care as any
trapped gas under pressure is released. Disconnect the cooling water supply
followed by the cooling water return.
3. Switch off the nitrogen and cooling water supplies. Disconnect the nitrogen supply,
taking care as any trapped gas under pressure is released. Disconnect the cooling
water supply followed by the cooling water return.
4. Disconnect the inlet and outlet from the vacuum and exhaust systems and install
blanking caps.
5. If necessary, disconnect the air extraction port from the factory extraction system.
6. If necessary, disconnect any accessories from the system.
7. Adjust the levelling feet so that the system rests on the castors.
8. Move the system to the location where maintenance will be done. After
maintenance is complete, re
‑
install the system as described in Installation on page
25.
9.3 Drain the cooling water for decommissioning
WARNING: PERSONAL PROTECTIVE EQUIPMENT
Risk of injury. Personal protective equipment (PPE) can decrease the risks of injury or
death to personnel and damage or destruction to equipment or products. Wear the
correct PPE necessary for the task.
WARNING: HOT SURFACE
Risk of burn injury. The exhaust of T variant systems will heat up to maximum
temperature as soon as the electrical supply is switched on.
1. Relocate the system for decommissioning as stated in Relocate the system for
decommissioning on page 86.
2. Connect a regulated clean dry air supply (5 bar (g) or 73 psi (g)) to the cooling
water supply connection ( Figure: Controls/connectors on the rear of the system ).
Do not turn on the air supply yet.
3. Connect a drain hose to the cooling water return connection ( Figure: Controls/
connectors on the rear of the system ). Put the open end of the drain hose in an
applicable collection container.
4. Turn on the clean dry air supply.
5. Monitor the drain hose outlet until no further cooling water is purged.
6. Attach the external EMS link plug (supplied) to the EMS connection on the rear of
the system ( Figure: Controls/connectors on the rear of the system ). Failure to do so
will result in being unable to purge the water system satisfactorily.
7. Connect the system to an applicable mains electrical supply. The control system
will now open each temperature control valve, purging the cooling water from all
flow paths. After two minutes, remove the electrical supply. Wait for 10 seconds
10/2020 - ©Edwards Limited Page 87 M56635880_D
M56635880_D - Decommissioning