74
Damper assembly procedures must be done so as all load transfer from the fire separating
constructions to the damper body is absolutely excluded. Back-to-back air-conditioning piping
must be hung or supported so as all load transfer from the back-to-back piping to the damper is
absolutely excluded.
On Fig. 83 is typical mounting situation as an example.
Threaded rods longer than 1,5 m require fire-resistant insulation.
Threaded rod fixing to the ceiling construction - see fig. 81
Examples of using materials:
Position:
1
Fire damper
2
Duct
3
Mineral wool
4
Threaded rod
5
Mounting rail
6
Nut
7
U - Washer
8
Washer
