Examples of German operation
➤ Carry out recurring inspections to
DGUV Regel 100 – 500, chapter 2.11:
The user must ensure that from a rated motor power greater than 0.5 kW the machine's safety
devices are checked for function at least once annually.
3.6 Dangers
Basic instructions
Information concerning the various forms of danger that can arise during heat exchanger operation
are found here.
Basic safety instructions are found in this service manual at the beginning of each chapter in the
section entitled 'Safety'.
Warning instructions are found before a potentially dangerous task.
3.6.1 Safely dealing with sources of danger
Information concerning the various forms of danger that can arise during machine operation are
found here.
Electricity
Touching voltage carrying components can result in electric shocks, burns or death.
➤ Allow only qualified and authorized electricians or trained personnel under the supervision of a
qualified and authorized electrician to carry out work on electrical equipment according to elec‐
trical engineering regulations.
➤ Before commissioning or re-commissioning the machine, the user must make sure there is ad‐
equate protection against electric shock from direct or indirect contact.
➤ Before starting any work on electrical equipment:
Switch off and lock out the power supply isolator and check that no voltage is present.
➤ Switch off any external power sources.
These could be connections to floating relay contacts or the electrical machine heating, for ex‐
ample.
➤ Use fuses corresponding to machine power.
➤ Check regularly that all electrical connections are tight and in proper condition.
Forces of compression
Compressed air is contained energy. Uncontrolled release of this energy can cause serious injury
or death. The following information concerns work on components that could be under pressure.
➤ Close shut-off valves or otherwise isolate the machine from the distribution network to ensure
that no compressed air can flow back into the machine.
➤ De-pressurise all pressurised components and enclosures.
➤ Do not carry out welding, heat treatment or mechanical modifications to pressurized compo‐
nents (e.g. pipes and vessels) as this influences the component's resistance to pressure.
The safety of the machine is then no longer ensured.
3
Safety and Responsibility
3.6
Dangers
No.: 9_5753 24 E
Assembly and operating manual 2-stage piston compressor
EPC-2-G
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