Boiler Assembly; Assembling The Block - Weil-McLain 4 Series Manual

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Boiler Assembly

1

Assembling the Block

WARNING
!
Ensure sections are supported. Sections are top-
heavy. Unbolted sections may fall if not supported,
which can result in severe personal injury or death.
2
NOTICE
Machined port surfaces must remain clear of any
adhesive properties. Adhesive in the seal pocket
can damage the seal, which can result in substantial
boiler and other property damage.
3
Prepare and position the back section:
1 Place 1/4" x 3" steel plates on the floor or foundation,
spaced 51" apart See Figure 1, page 8
2 Apply 1/8" continuous bead of sealing rope
4
adhesive in sealing rope grooves around section
perimeter and flue-ways See Figure 3 and Figure 4
3 The boiler is supplied with two types of section
sealing rope: uncoated rope, and coated rope
with a narrow uncoated strip Place the 5/8" rope
in the rope grooves:
a Use the uncoated rope only on the flue-ways
5
as shown in Figure 4
b Use the coated rope around the perimeter
and around the upper nipple port as shown in
Figure 4 The uncoated side of the rope must
be pressed into the adhesive as shown in
order to obtain a proper adhesion
6
c Use one continuous piece of the coated rope
around the entire outside groove of the casting
Connect the coated rope at one of the top sides
Do not meet the two ends of the coated rope
between the nipple port and flue-way area.
d Apply additional sealing rope adhesive where
the two ends of the coated rope meet This will
7
ensure a leak-free joint
4 Around curves, grasp rope at 1" intervals and
push together Do not stretch the rope
5 Cut the rope as each section is completed
WARNING
!
8
Do not pre-cut rope. Gas-tight seal must be
maintained to prevent possible flue gas leakage
and carbon monoxide emissions. Failure to comply
can result in severe personal injury or death.
12
sTeam series
94
Figure 3
Sealing rope adhesive
Figure 4 Sealing rope placement
TOP VIEW
Place uncoated
strip on coated
rope against the
adhesive
COATED rope —
around perimeter
and nipple port as
shown – place
with uncoated
strip facing down,
pressed into the
adhesive
boiler manual
4
1/8-inch
bead of
adhesive
Adhesive in
rope groove
Coated rope
Cut the UNCOATED
rope diagonally at
points where the
uncoated and coated
rope meet.
Connect the coated
UNCOATED rope
rope ends at the top (around flueways)
on either side of the
casting.
DO NOT connect in
the middle.
9" elastomer
sealing ring
6" elastomer
sealing rings
550-100-157/0523
230037
230038