Table 13 Accessories
1a DVN, DVNI Roof fan - vertical discharge - high temperature - (insulated)
1b DVS/DVSI Roof fan - vertical discharge - standard - (insulated)
1c
DVC/DVCI Roof fan - vertical discharge - ec motor - (insulated)
1d
DHS
Roof fan - horizontal discharge - standard
size 190 to 500 –> round cap
size 560 to 710 –> squared cap
2
VKS (ii) Back draft damper
7
FTG (iii) Tilting device
3
SSD (i)
Socket silencer
8 TDA
Adapter framework
4 ASK
Inflow box SSD
9
VKM (ii)
Back draft damper (motor
driven)
5 ASS
Flexible connection
10
FDS (i)
Flat roof socket
6 ASF
Inlet flange
Note:
i. Size 190–450: If the degree of inclination is higher than 15°, a SSS (Slanting socket silencer) or a SDS
(Slanting roof socket) has to be used.
Size 499–630: If the degree of inclination is higher than 10°, a SSS (Slanting socket silencer) or a SDS
(Slanting roof socket) has to be used.
ii. Do not install a VKS (self-actuating back draft damper) for roof fans (e.g. P version, POC version) which
are controlled by sensors in the duct system. In this case, you must use a VKM (motor-driven back draft
damper).
iii.See chapter 8.3 Assembly tilting device (FTG), page 14
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