Viessmann VITOROND 100 Installation Instructions Manual page 15

Boiler section assembly
(cont.)
Note
During the compression process, draw in only one additional section at a
time to prevent leaks at the hub joints.
Before use, lubricate the moving threads of the compression tool with the
enclosed lubricant.
During compression, maintain the same distance at the top and bottom
between the individual sections. Never secure the sections out of true.
4.
3.
5.
1.
6.
2.
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