Anleitung WVA WVI-engl.doc 3
02.06.2006
1.0 APPLICATION
In case of a fire, smoke extract fans are used to exhaust hot air and smoke from buildings.
They can also be used for normal daily ventilation under normal operating temperatures. By
keeping rooms and escape ways free of smoke, rescuing people and protecting the
installations and material in a room is facilitated. Fire fighting can be done quickly and
effectively. The building and installations are protected against excessive temperatures, fire
spreading is prevented.
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To extract smoke up to
600°C resp. up to 400°C for min. 120 minutes;
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6 different sizes from 400 up to 1000
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Two different models for different installations are available:
WVI – installation inside the fire zone, WVA – installation outside the fire zone
Fans of type WVI / WVA may never be installed in explosion hazardous areas
•
Should the motor be executed in two speeds, normally the low speed is used for daily
ventilation (medium temperature –20 up to +40°C, if aggressive media are to be
exhausted, a protection against acids has to be installed), the high speed in case of a fire.
Unintended use can be dangerous for human beings and equipment!
This risk is completely in the hands of the operator.
2.0 TECHNICAL DESCRIPTION
Casing
The casing is manufactured from steel and has lacquer as a finish.
Impeller
The impeller of type WVI / WVA F600 is manufactured from stainless steel, of type
WVI / WVA F400 from galvanized steel. The impeller is directly connected with the motor
shaft by a hub and secured screwed connections. Dynamically balanced in accordance with
ISO 1940 T1, class G6, 3.
Motor
The fans are equipped with three phase motors (400V, 50Hz) without thermal protection.
Protection class of electric motor IP 54. Insulation class F (IEC).
3.0 TRANSPORT AND STORAGE
3.1 Transport
When leaving the factory, all fans are packed in a way to be protected against normal
transportation damages. Use suitable lifting devices when transporting the units, to avoid
harming people or damaging the units.
Avoid unnecessary stress to the unit by pushing it or hitting it with any objects. Fans may
only be transported in horizontal position.
Consider the weight of the fan when transporting it or loading it.
When taking the goods in arriving at your warehouse do a visual inspection and check if the
consignment is complete.
3.2 Storage
Until final installation, store the fans in dry places only, protected against weather and dust.