Stair Bolt Mounting Kit - Vaillant auroTHERM VFK 145 H/V Installation Manual

6.2.3 Stair bolt mounting kit

a Caution!
Before installation check the load-bearing ca-
pacity of the wooden substructure!
If necessary, strengthen it.
1
Fig. 6.7 Fixing with stair bolt
1. Bore a hole in the pantiles in the corresponding posi-
tion. For distances please see Tab. 6.2 and 6.3.
2. Tighten the stair bolt to the rafters through the pan-
tile.
3. Screw the lower nut against the pantiles, and tighten
it until the seal sufficiently seals the opening.
Installation manual auroTHERM 0020057143_02
On-roof mounting 6
3
4. Position the central nut so that after inserting the an-
chor upper part the front contact area is on the roof-
ing.
5. Screw the second nut and tighten it (SW 17).
6. Detach the threaded bolt directly above the nut.
Deburr the interface.
6
4
5
GB
21