Buderus Logano G615 Installation And Service Instructions Manual page 21

B Evenly coat the hub sealing faces with sealant.
B Coat the packing springs with primer.
B Position the intermediate section with the supply
connection so that the top and bottom hubs fit onto the
nipples in the rear section. The directional arrow must
point towards the rear.
To make installation easier, place the boiler
section to be fitted onto the nipple on the top
hub first. Then it is easier to align the boiler
section on the bottom hub.
B Drive first intermediate section onto the rear section
using a wooden or a rubber mallet.
Before the nipples are inserted in the next
intermediate section, the partly-assembled
boiler block must be compressed using the
boiler assembly tool.
5
4
Fig. 15 Pound intermediate section in place
1 Supply connection
2 Top hub
3 Directional arrow
4 Bottom hub
5 Wood or rubber mallet
Use boiler assembly tool 2.3 (
page 15).
B Push pressure flange with clamping nuts onto the tie
rods.
B Push a tie rod through the top and bottom hubs on the
boiler block.
Logano G615 - Subject to technical modifications
B Push mating flanges onto the tie rods and secure each
with wedge.
B Hold the tie rod in the center of the hubs and slightly
draw together the compression tools using the
clamping nut.
1
2
3
Fig. 16 Using the boiler assembly tool
720 42 25-13.1o
1
2
3
4
B Place ratchet wrench onto clamping nut and compress
boiler sections by tightening evenly.
Fig. 4,
Boiler block assembly
NOTICE: The boiler can be damaged by
pulling the boiler sections together
incorrectly or due to excessive compression.
B Ensure that the nipples are positioned
straight in the boiler hubs after being
pounded in and that they have not been
compromised.
B Never compress more than one nipple
joint at a time.
B Stop compressing the sections when the
boiler hubs meet.
2
1
Boiler assembly tool (bottom hub)
Boiler assembly tool (top hub)
Pressure flange (top)
Pressure flange (bottom)
7
3
4
720 42 21-12.1o
21