Filter component
56 © robatherm
If robatherm AHUs are equipped with HEPA filters according to EN 1822, the following install material
is included in the delivery:
Fig. 104: Install material
A - filter; B - clamping profile; C - hexagon nut DIN 934 (EN-ISO 4032) M8 V2A; D - washer A2, DIN
9021 (EN-ISO 7093), d1=8.4mm, d2=24.0mm; E - threaded rod DIN 976, M 8 x 350 mm,
grade:1.4301
General procedure
• Start with the bottom row. Work
from the bottom up.
Fig. 105: Assembly sequence
HEPA filter installation work steps according to EN 1822
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1. Screw 4 x threaded rods (E) into
rivet nut (F) 8-10 mm deep.
Fig. 106: Mounting threaded bolts
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