Donaldson BOFA AD 350, Руководство пользователя

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Installation
The unit has been designed to remove and filter fume
containing potentially hazardous particulate and gases
generated during manufacturing processes. Such hazardous
substances are captured within a multistage filtration
system after which the cleaned air is returned to the
workplace.
Fume Capture Methods
The fume is normally captured by 1 of 3 methods.
•
Flexible arm/ Nozzle
•
Enclosures
•
Cabinets
General Guidelines for a successful installation
•
Keep duct run length to a minimum
•
Avoid sharp bends / turns in the ductwork
•
Avoid multiple bends / turns in the ductwork
•
Use a larger diameter duct where able
•
Position the capture device as close as possible to
the marking point. (if used on high speed lines,
position the capture device slightly downstream)
Flexible Arm & Nozzle Extraction
The stay put arm should be mounted as close as possible to
the marking point using the horseshoe clips. Unscrew the
push fit connector from the other side of the flexible hose.
Cut the flexible hose to suit the distance back to the
extractor connection and push onto the extractor inlet.
Purge air should be kept to a minimum, where possible, to
prevent the fume being blown away from the nozzle.
High speed lines may need bigger scoops or nozzles both
sides of the product because of the turbulence caused by
the speed of the product.
Moving products
For applications where the product to be marked is moving
past the stationary head the capture nozzle should be
positioned as close as possible to the marking area on the
side the product is moving towards.
Enclosures
The extraction hose and nozzle can be attached to the
enclosure surrounding the marking zone provided that the
extraction point is within 50-75mm of the marking point.
Cabinets
Cabinets normally have a 75mm or 100mm spigot for fume
extraction. For best performance use the same diameter
hose as the spigot and reduce at the extractor end if
necessary.
Keep the hose run as short as possible.
Connection to extraction unit
All ductwork should be installed and connected to the
extraction unit before the extraction system is turned on.
Exhausting filtered air outside
If requested your extraction unit will have been fitted with
an exhaust outlet spigot. This provides a connection point
for exhaust pipework to be fitted. It is important to keep any
ducting to a minimum, in order to reduce back pressure
within the system.
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