Buderus Logano G315 Installation And Service Instructions Manual page 22

7
Boiler block assembly
B Push the compression units (Fig. 17, [3 and 4]) onto
the tie rods (Fig. 4, [4], page 15).
B Push a tie rod through the upper and lower hubs on the
boiler.
Fig. 17 Using the boiler assembly tool
B Push mating flanges (Fig. 18, [1]) onto the tie rods
(Fig. 18, [3]) and secure each with wedge (Fig. 18,
[2]).
B Hold the tie rod in the center of the boiler hubs and
slightly draw together the assembly tools using the
clamping nut.
Fig. 18 Boiler assembly tool on rear section
22
NOTICE:
B Never compress more than one nipple
connection (two sections) per pressing
operation since otherwise the boiler block
could compress unevenly. This causes
leaks in the nipple connections.
B Place both ratchet wrenches onto clamping nuts of the
compression unit and press boiler sections together by
tightening evenly.
NOTICE:
B If the boiler packing grooves hit each
other, immediately stop any compression.
Additional compression could damage the
boiler sections.
B Release and remove the boiler assembly tool.
B Check nipples are seated correctly.
B The boiler sections must be aligned to make the
installation easier.
B Assemble all other boiler sections as described. The
front section is always fitted last.
B After the front section is attached, loosen – the
assembly tool but do not remove it.
B Insert the tie rod before removing the assembly tool!
B Insert the three tie rods (with spring packs fitted) into
the cast lugs at the designated positions (Fig. 19 [1, 2,
and 3]). When inserting the tie rods, make sure the
spring packs are mounted on the rear of the boiler.
B Put a nut onto each of the threaded tie rods and tighten
by hand.
NOTICE: Damage to system through
excessively low contact pressure.
B Do not compress the spring pack. Only
use the spring pack in its original state.
B Now tighten the nuts on the tie rods 1 to 1½ turns.
B Level the boiler block vertically and horizontally on the
base/foundation ( Chapter 6.3, page 17).
B Remove boiler assembly tool.
Logano G315 - Subject to technical modifications