AAF AstroFan Base, Instruction Manual

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• Installation should preferably take place with 2 persons.
• Ensure that the ceiling grid is provided with clean, undamaged
gasket around the entire inner perimeter of each opening. The
gasket should be free from cracks or voids. Make sure that the
gasket is firmly sealed in the corners.
• Once equipment is ready to be installed and is as close to
the final location as possible, the following procedure should be
followed.
• Remove all packing material and lift AstroCel II HEPA/ULPA filter
into the ceiling grid. Avoid touching the filtration media.
• Lifting into position takes place from the top (thus from above
the grid) or through the openings of the grid. This work has to be
carried out with at least 2 persons.
• Remove all packing material and lift AstroFan fan top into the
grid. Lifting into position takes place from the top (thus
from above the grid) or through the openings of the grid.
• Positioning is done from above the grid.
• Use the handles of the AstroFan fan top for carefully positioning
the fan top onto the filter. Do not apply force. The unit rests on
the gasket of the filter and seals by its own weight. The skirt
provided on the filter locates the FFU.
• Mechanical fixtures are preferred to avoid movement of the
As Filter
• Specialized electronic commutation motor design permits speed
control through the built-in electronics,
connected with a bus-line to the control unit or a PC operated
visualized control.
• All fans are dynamically balanced at two levels in accordance
with VDI 2060 or DIN.ISO 1940, Section 1.
• Each unit is provided with 2 or 4 lifting handles for easy
installation.
• All pop-rivets are closed head type.
• The unit is completed with an AAF AstroCel II HEPA/ULPA filter,
sized and selected to the correct airflow and pressure drop. All
AAF AstroCel II HEPA/ULPA filters are factory tested to EN 1822.
• The FFU-housing seals and rests on the internal gasket of the
RSC adapter frame which holds the AstroCel II filter. An upside
turned skirt on the RSC frame centers the FFU-housing. The
flat flange at the air-leaving side of the RSC frame rests on the
dry gasket, applied into the ceiling grid.
• Each FFU-housing is provided with an integral inlet protection
grille. Standard supply is without pre filter frame. Upon request a
pre filter frame extension can be supplied.
Options:
• If required, the inlet grille can accommodate an AAF RedPleat
pre filter, sizes 370x440x44 mm (FFU 66), 490x490x44 mm
(FFU 69, 612 and 99) or 740x740x44 mm (FFU 912 and 1212).
Filter classification G4 to EN779. Special pre filter extensions can
be provided for all sizes to accommodate larger size or filters
with higher efficiency.
Installation Top Side Change Execution (TSC):
Top Side Change Installation:
1. Place filter on ceiling grid with knife edge pointing upwards. 2. Lower the FFU onto the filter from above, using the knife
edge to centre the FFU.