Attaching The Top And Bottom Rails - Viessmann Vitocrossal CRU Series Installation Instructions Manual

Attaching the top and bottom rails

D
Fig. 14
Rail, top (long)
A
Rail, top (short)
B
20
1.
M 6 x 10
B
4.
C
3.
A
Rail, bottom (long)
C
Rail, bottom (short)
D
2.