Translation of original operating instructions
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AL-KO AT4F ATEX
2.3.3 Safety instructions for operation
AT4F ATEX unit must only be operated with completely closed inspection doors/inspection covers.
All components must be integrated into the unit potential.
No unauthorised persons are permitted to have access to AT4F ATEX unit during operation.
The AT4F ATEX unit may only be operated in the performance range specified in the AL-KO THERM technical doc
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uments.
AT4F ATEX unit must be installed properly and used subject to precise observation of our operating and assembly
instructions.
Only operate the AT4F ATEX unit in an approved ATEX zone.
Only operate the AT4F ATEX unit when it meets your required ATEX requirements.
Ensure a sufficient safety distance between media temperature (e.g.: medium of the heat exchanger) and the mini
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mum ignition temperature of the potentially present explosive mixture in accordance with DIN EN 1127-1.
Observe the applicable standards and directives, in particular the ATEX standards and the ATEX directives 2014/34/
EU and 1999/92/EC.
Only operate AT4F ATEX unit when it is fully assembled and with correctly fitted contact protection (optional).
The AT4F ATEX unit may only be operated when in a technically flawless condition. Malfunctions and damage that
can affect safety must be immediately and professionally rectified. The version and construction of AT4F ATEX unit
complies with the standards listed in the Declaration of Conformity or Declaration of Incorporation.
Wear personal protective equipment (e.g. ear protection) during operation of AT4F ATEX unit.
2.3.4 Safety instructions for maintenance
Ensure that work on/in the AT4F ATEX unit takes place during ATEX zone freedom.
Observe the applicable standards and directives, in particular the ATEX standards and the ATEX directives 2014/34/
EU and 1999/92/EC.
Damaged parts are only permitted to be replaced with original spare parts. The spare parts must correspond to the
required ATEX marking.
During repair and maintenance work, AT4F ATEX unit is to be disconnected from the mains on all poles and secured
against restart.
General maintenance instructions in the operating and assembly instructions from AL-KO THERM must be observed
under all circumstances.
Observe the delay time of the fans. Observe a waiting time of at least 3 minutes, until the fan impellers are stationary,
before opening the inspection doors.
Please note that all inspection covers/inspection doors, other housing parts and components are integrated and
components are integrated into the unit potential; after each release of these connections, they must be restored
again. Check the integration into the unit potential and document the function in the on-site documentation.
2.3.5 Personal safety instructions
The AT4F ATEX unit may only be operated by persons who are trained in operating it and expressly authorised to
use it.
Personal protective equipment conforming to TRGS 727 is required for work on the AT4F ATEX unit.
To avoid dangers during operation, all of the operator's plant, operating and working instructions apply in addition
to these operating and assembly instructions.
The operating and assembly instructions must be kept at a suitable, known place in the workplace.
The operator of AT4F ATEX unit must draw up operating procedures in an understandable form and in the language
of the employees, taking the operating and assembly instructions and the operating conditions into consideration.
Содержание AT4F Series
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