AL-KO AT4F Series, Руководство по эксплуатации и сборке

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Translation of original operating instructions
18
AL-KO AT4F ATEX
3 Product description
„
The exact type designation can be found on the type plates. The type plates are usually affixed to the housing. When
ordering spare parts or in case of other queries, please specify the type designation of the AT4F ATEX unit, the year
of manufacture, order number, position and the ATEX marking according to the type plate, see chapter "3.3.1 ATEX
type plate" on page 21.
„
The AT4F ATEX unit is suitable for operation in the temperature range from -20 °C to +40 °C.
„
Depending on the requirements, all known air handling units are used in the AT4F ATEX Series for filtration, heating,
cooling, silencing, heat recovery, (plate heat exchangers or circulating coil systems), etc.
„
The customer-specific unit version can be found in the respective data sheets and drawings.
„
AT4F ATEX units are available as a weatherproof version or for indoor installation.
For AT4F ATEX units of zone 2 inside/without requirements outside, the following point must be observed, among
others: If no ATEX zone has been defined in the outdoor area of the AT4F ATEX unit, the operator must ensure that
the installation room/installation site is adequately ventilated so that no explosive atmosphere can arise due to leaks
during normal operation.
In general, the installation room/location must be suitable for the air handling unit to be installed. DIN EN 60079-10-1/
DIN EN 60079-10-2 must be taken into account in the planning for the determination of the necessary air exchange.
NOTE
Our products are subject to continuous quality control, and comply with the applicable regulations.
EHA
ODA
ETA
SUP
3
1
2
Fig. 3 ATEX zones on/in an air handling unit
1 ATEX zone inside the air handling unit extract air
2 ATEX zone inside the air handling unit supply air
3 ATEX zone outside the air handling unit/at the installation site
Depending on the requirements of the air handling unit, one or more ATEX zones may be present. These can occur both
inside and outside the air handling unit.
A backflow during standstill times is always to be avoided. This can be achieved by on-site, air-tight dampers (DIN 1946 T4)
in the air lines.