Spasciani DUCT ECO EN 138 Manual De Instrucciones página 14

and for DUCT A ECO (par. 6.19.1 e 6.19.2 EN 138)
Inhalation Resist. with
Type mask 25x2 l/min
Assisted motor
driven – maximum
by EN 138
•
The minimum airflow design to each output is > 300 l/min.
1. OPERATING CONDITIONS
VIP fans are designed and produced to convoy air and alike and shall not be used to convoy solid substances
or particles suspended in fluids, nor used in different conditions. The working conditions shall be in
compliance with those they were designed and produced for (voltage, connections, category and so forth),
written on the fan data label. VIP fans standard conditions are:
• No potentially explosive environments
• Continuous service
• Atmospheric pressure between 0.8 and 1.1 bar
• Maximum oxygen volume 21%
• Clean air
For working conditions or services different from standard, specific axial fans shall be used; these conditions
shall be stated since the beginning. Fans referred in this manual are not ready for use but components
installed in more complex systems.
2. AIR TEMPERATURE, AIR DENSITY AND ALTITUDE
Temperature is an important variable for the proper and safety operating conditions of fans. The values
printed on labels shall not be exceeded. In case of temperature exceeding label data, a protection device
shall be provided.
Data printed on labels refer to the International Standard Atmosphere, which considers an air density of
3
ρ=1,225 kg/m at sea level. Changes in density may cause significant variations of the working conditions.
As a rough guide, the following table explains the density variation according to altitude:
Altitude (m)
0
500
1000
1500
2000
3. RESISTENCE TO CORROSION
Fans are designed to operate in normal gas atmosphere; the presence of corrosion agents shall be indicated
since the request.
4. NOISINESS
Noise power values pointed out in our catalogues are obtained in compliance with EN ISO 3744:2010.
However, these values refer to standard conditions and do not account for accessories and ambient
conditions different from those of laboratory (reflecting surfaces, etc..). Where noise level exceeds the value
of the minimum allowable value, equip workers with suitable protection devices (headphone sound
attenuators) and provide the area with signs advising their use or, in alternative, provide the fan with silencer.
5. IDENTIFICATION
Exhalation Resist.
with mask 25x2 l/min
(mbar) (mbar)
4.5
SPECIFIC INSTRUCTIONS FOR DUCT A ECO ELECTRIC FAN
Density (kg/m³)
1,225
1,165
1,1117
1,054
1,002
Inhalation Resist.
without mask 25x2
l/min (mbar)
10 4.5
Exhalation Resist.
blower off with mask
20x1 l/min (mbar)
10
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