19Installation
• Mark horizontal position(s) of the vertical support(s) on the cross members (one vertical sup-
port is always in the middle of the duct, several vertical supports must be evenly allocated over
the duct width). From the front (view in air ow direction) attach the vertical support(s) with the
angle bracket on top to the cross members, then shift upwards until it comes to a stop and x
the vertical support(s) four screws M6 x 16 mm and nuts to the cross members. Slightly fasten
the screw connections only.
• Check distance between upper edge of the vertical support(s) and the duct ceiling as well as
the vertical alignment of the vertical support(s) by measuring the distance between the vertical
support(s) and the duct walls on top and on the bottom.
Important: The distance between the upper edge of the vertical support(s) to the duct ceiling
must be identical to the distance between the upper edge of the two lateral supports of the post-
evaporation unit to the duct ceiling. If necessary, align vertical support(s) horizontally and vertically.
• Fix angle bracket of the vertical support(s) with two self-tapping screws 6.3 x 25 mm to the duct
ceiling (see detail top left in g. 8).
• Check dimensions again an realign if necessary. Then, tighten all screw connections.
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