O p e r a t i n g - a n d I n s t a l l a t i o n M a n u a l B 3 8 0 - H a n s W i l m s G m b H & C o . K G
When operating the hot air turbine, the accident prevention regulation
"Heating, flaming and melting
equipment for construction and assembly work
" must be observed, according to which the devices may
only be installed in rooms if
•
the appliances are used for combustion sufficient amount of air is supplied and
•
the exhaust gases are guided via exhaust trains into the open air.
A sufficient natural air supply for combustion is given if, for example:
•
the volume in m
3
corresponds to at least 10 times the nominal heat output in kW of all devices in
operation in the room, and
•
a natural air exchange is ensured by windows and doors. A good, natural ventilation is given, if e.g.
•
the volume in m
3
corresponds to at least 30 times the nominal heat output in kW of all devices in
operation in the room and a natural air exchange is ensured by windows and doors, or
•
there are non-closable openings for supply and exhaust air near the ceiling and floor,
the size of which in m
2
corresponds to at least 0.003 times the nominal heat load in kW of all devices
in operation in the room
.
An unfavorable concentration of harmful substances in the breathing air is not to be expected as long as the
MAK values are below and the oxygen content of the air is more than 17 vol. %.
Note: If the two above possibilities for good, natural ventilation are given, it can be assumed that the limit
values for oxygen content and concentration of harmful substances (MAK values) are complied with.
The hot air turbine may only be operated by persons who are instructed in the operation and maintenance of
the equipment.
Persons instructed are those persons who, if necessary, have been trained and informed of the tasks
assigned to them and of any possible dangers.
On construction sites, the device may only be connected via special supply points, generally construction
power distributors with RCDs (VDE 0100, Part 704).
Repair and maintenance work on the electrical equipment may only be carried out by an electrician.
The devices must be tested for their safe working condition according to the conditions of use as required, but
at least once a year by an expert. The results of the examination must be recorded in writing and kept until
the next examination.
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