Table of Contents
Advertisement
12.3
Section block assembly
1)
Provide a level concrete base for the boiler of not
less than 4˝ in thickness. The base must be of
sufficient size to allow the base to extend 4˝
beyond the front, back and sides of the boiler.
2)
Place boiler skids (metal strips) on the base. The
skids should be located so that the boiler legs, front
and back, sit evenly on the skids. See Fig. 29.
3)
Bring the section blocks together making sure that
as they meet, they are kept exactly parallel to each
other. Re-check the parallel alignment of the push
nipple and nipple ports. Distance "X" must be the
same as "Z". Insert, adjust and tighten assembly
tools by hand. Make sure the two hexagon brass
nuts have full "thread grip" on assembly tool
threads. See Fig. 30.
Attention: Use plenty of oil between hexagon
brass nuts and steel pressure plates as well as on
assembly tool threads!
Important: Use only a Viessmann assembly tool
for this procedure.
4)
Start to draw by tightening the two hexagon brass
nuts equally with the two hexagon keys supplied.
Always check during drawing the distance "X" = "Z".
Attention: Do not force tightening after you have
reached contact of any two different points of the
sealing surfaces. See Fig. 30.
5)
Insert the boiler tie rods again and tighten them
with moderate force only. Remove assembly tools
and re-install all flanges. See Figs. 27, 27a.
Viessmann
adjustable
assembly tools
Fig. 30
Attention Installer:
Please make sure that all parts belonging to the assembly tools are packed again into the carrying case after the procedure, so
that the assembly tool set is complete for the next user. Thank you for your accuracy and cooperation.
Steel pressure
plate
Rod stop
Adjustment
grooves for
various
section blocks
6)
Check and seal all gaps between sections using
the sealing compound provided. The boiler block
must be hydrostatically tested at a maximum of 90
psi to ensure against water leaks. Ensure return
water distribution tube is correctly installed (see
Figs. 23, 27a) on right or left side.
7)
Ensure 5-point well is installed in the tapping
closest to the supply connection (see Fig. 23).
8)
Proceed with installation of enclosure, gas train and
controls. See section 2.0 on page 4.
Fig. 29
"X"
Steel pressure
plate
Hexagon
brass nut
"Z"
Metal strips
Apply
equal
force
31
Hide quick links:
Advertisement
Table of Contents
