Operation and Maintenance Manual (DTR) iSWAY
®
Set of products
Version 1.8 of 2.2021
50
11.3.
iSWAY-RFC
®
11.3.1.
iSWAY-
RFC® vertical version
When installing the iSWAY-RFC
®
unit in vertical installation, the use of a roof base is
recommended to ensure adequate tightness and ease of installation. The PDA roof base is
available as an additional accessory to the iSWAY-RFC
®
system. The PDA base should be screwed
to the roof plinth depending on the material of which the plinth is made, with a spacing of ~500mm.
For steel plinth use self-drilling farmer screws, for concrete plinth use farmer screws with dowel.
Fig. 11.15. Assembly of the roof base to the roof plinth.
Using the lower flange connection in the PDA roof base, it is possible to connect the ventilation
system to the ductwork through the corners in the flange by means of
M8 hexagon bolts (acc. to
DIN 933), with M8 nuts (acc. to DIN 934). Enlarged was
hers Ø8 (acc. to DIN 9021) are used for
connection. Seal up the connection with a PES 20x7 gasket.
Fig. 11.16. Connection of the roof base with the installation plinth.
For dimensions A > 600 mm, additional MKZ clamps with M8x25 screw (acc. to DIN 933) must be
used on each wall in ~500 mm spacing.
If there is no ventilation duct when the iSWAY-RFC
®
unit supplies air directly into the room, it is
recommended to use a PDA-1 roof base, which does not have a simple connection to the
installation (fig. 11.17).
PDA roof base
Farmer screw wit dowel
Concrete plinth
DETAIL A
PDA roof base
Farmer screw with dowel
Brickwork plinth
Detail A
Screw M8
Nut M8
Washer
Ø
8
A
