General information on maintenance

DANGER

Voltage

The components of the control and the connections are under voltage. There is a danger of death on contact.

1. Only allow work in which the control unit must be opened to be carried out by trained specialist personnel (electricians).
2. Only perform work in which the control unit must be opened when the power supply is switched off.
3. The five safety rules according to DIN VDE 0105 are to be observed:
4. Disconnect from the mains
5. Secure against reconnection
6. Verify that the system is dead
7. Carry out earthing and short circuiting
8. Provide protection from adjacent live parts

WARNING

Noise emission

When working on pressurised pneumatic supply, significant noise emission can occur. Acute and chronic loss of hearing may result.

1. Never perform work on the pressurised pneumatic supply without hearing protection.
2. Only replace the silencers when the supply is unpressurised.

WARNING

Displacement of atmospheric oxygen

In the event of inert gas leaks, displacement of atmospheric oxygen may occur. Danger of suffocation!

1. The operator must ensure adequate ventilation and airing in all rooms with gas installations and monitor the oxygen content.

Correctly performed and timely maintenance increases the service life, ensures availability and helps to avoid undesirable downtimes.

Servicing and maintenance measures are only permitted to be carried out by competent specialist companies and persons (electrical engineers).

Maintenance work should be documented by the operator. The documentation should indicate who carried out which work and when (proof of maintenance).

It is only permitted to use original spare parts or equivalent spare parts as well as suitable tools:

• The recommended maintenance and test intervals are to be observed! (Also observe the manufacturer's documents)
• The causes of possible defects are to be investigated, e.g. damage, unusual noises, overheating, etc.

Before beginning maintenance work, the controller must be enabled and secured against reconnection. Observe the five safety rules according to DIN VDE 0105:

• Disconnect from the mains
• Secure against reconnection
• Verify that the system is dead
• Carry out earthing and short circuiting
• Provide protection from adjacent live parts

After completing the works, a re-commissioning process must be carried out (see "Commissioning").