6
| Important safety information
Warning
With a view to the choice of material, the EX fans fulfil the requirements of standard DIN 14986
(construction of fans for use in explosion-capable areas) as a result of specific protection measures in the
area of possible contact surfaces between rotating and stationary components (rotor/admission nozzle).
For the rotating part, a safety distance to the admission nozzle is guaranteed. The plant builder is
responsible for the selection of the materials for the fixed peripheral parts in fan constructions without
protective grids. Only pairs of materials according to standard DIN EN 14986 are to be used.
Warning
The statement of the temperature class on the EX name plate (motor) must match the temperature class of
the combustible gas which will possibly occur or the motor must have a higher temperature class.
Danger
Explosion protection
Transport damage or failure to comply with this information can lead to a loss of explosion protection.
♦
In the event of recognisable transport damage, do not put the device into operation and contact the
manufacturer.
Warning
The effects of lightning strikes must be limited to a hazard-free extent. Alongside protection against the
effects of „direct“ lightning strikes, this also includes protection against lightning strikes at a distance from
the building. The latter can lead to hazards as a result of excess voltages.
♦
Carry out a risk analysis according to DIN VDE 0100, part 443, containing a balance between protection
and consequences, taking the probability of the occurrence of excess voltages into account.
♦
Protect all devices, protective systems and components by suitable lightning and excess voltage
protection measures.
Warning
Ignition protection class „d“
If fans are controlled with engines of the „d“ ignition protection class with frequency converter, thermal
protection by a PTC resistor in the motor is necessary.
3
Important safety information
Planners, plant builders and operators are responsible for the proper assembly and intended use.
♦
Read the operating instructions completely and carefully.
♦
Keep the operating instructions and other valid documents, such as the circuit diagram or motor instructions, with
the fan. They must always be available at the place of use.
♦
Observe and respect local conditions, regulations and laws.
♦
Only use the fan in a flawless condition.
♦
Provide generally prescribed electrical and mechanical protective devices.
♦
During installation, electrical connection, commissioning, troubleshooting, and maintenance, secure the location and
premises against unauthorised access.
♦
Do not circumvent any safety components or put them out of action.
♦
Keep all the warning signs on the fan complete and in a legible condition.
♦
The device is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instruction.
♦
Do not allow children to play with the device.
3.1
Personnel
The fan may only be used by qualified, instructed and trained personnel. The persons must know the relevant safety di-
rectives in order to recognise and to avoid risks. The individual activities and qualifications can be found in Table 1
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