Viessmann VD2-320 Installation Instructions Manual page 15

Vitorond 200, VD2 Series 320 to 1080 Installation
Cast Iron Section Assembly
(continued)
14. Loosen draw tool and remove pressure nuts.
15. Repeat steps 1 through 10 until the draw tool kit can
be used again. Do not glue glass fiber rope into center
of pre-cast groove of intermediate section attached
to front section (see page 10).
16. Attach extension rods to the main draw rods and
sections according to steps 11 and 12, until heat
exchanger block is completely assembled.
17. Remove supports after three sections have been
assembled.
18. Remove combustion chamber door from front section
by loosening threaded M 16 nuts.
19. Prepare front section in the same way as previous
sections and align with remainder of heat exchanger
block utilizing the draw tool kit in the same fashion as
before.
20. Tie rods with washers to top and bottom of heat
exchanger block according to pattern and table on
following page. Space threads on front and rear
sections evenly. Do not overtighten.
21. Loosen pressure nuts and remove draw tool kit.
Retighten all tie rods.
IMPORTANT
Only release the draw tool once the sections have been
joined with the tie rods.
22. Ensure that the heat exchanger block is level and
vertical on boiler base. All individual section legs must
properly rest on boiler foundation. Where necessary,
fill gaps with strips of sheet metal.
Please clean draw tool kit before re-crating, ensure that
all parts are included and crate is properly closed before
return shipment.
IMPORTANT
All section feet must be firmly placed on the boiler base.
If necessary, shim section feet.
Assembly
15