6 Install flue collector (continued)
Before installing flue collector
1.See Figure 10, page 11, for general assembly of flue collector components.
2.See Figure 11, page 13 for the placement of flue collector hoods on each model.
3.Prepare mounting holes in boiler rear section.
a.The boiler rear section has tapped holes for mounting rear flue collector component.
b.Remove any grit from threads inside tapped holes with clean rag.
Rear flue boilers only:
1.See Figure 10, page 11 and Figure 11, page 13.
2.Place collector hood transition on rear section:
a.Wipe item 10, Figure 10, collector hood transition flange surfaces with a clean rag.
b.Apply a few pieces of
c.Place the collector hood transition gasket (item 8, Figure 10) on the collector hood transition flange. Align holes in gasket with holes in flange. Press gasket firmly in place.
d.Position collector hood transition on back of boiler rear section, aligning collector hood transition flange holes with tapped holes in boiler rear section.
e.Insert a 5/16" x 5/8" flanged bolt through the bottom center hole and finger tighten to hold transition in place.
f.Install six remaining bolts securing collector hood transition to rear section.
3.Place collector hood assembly on sections:
a.Carefully set collector hood assembly on top of section assembly. Align slotted holes in collector hood flanges with the
b.Place the collector hood assembly so its rear flange is against the collector hood transition flange gasket.
c.Thread flanged nuts onto
d.Insert five 5/16" x 5/8" flanged bolts through holes in collector hood transition and collector hood assembly rear flange. Thread on nuts and
DO NOT overtighten bolts in flue collector hood assembly. Gasket material could extrude, causing possible flue gas leakage and carbon monoxide emissions, resulting in severe personal injury or death.
Top flue boilers only:
1.See Figure 10, page 11 and Figure 11, page 13.
2.Place rear flue cap on rear section:
a.Wipe item 9, Figure 10, rear flue cap gasket surface with a clean rag.
b.Apply a few pieces of
c.Place the rectangular gasket (item 8, Figure 10) on the flue cap, aligning holes in gasket with holes in rear flue cap. Press firmly in place.
d.Position rear flue cap on back of boiler rear section, aligning rear flue cap holes with tapped holes in boiler rear section.
e.Insert a 5/16" x 5/8" flanged bolt through the bottom center hole and finger tighten to hold rear flue cap in place.
f.Install six remaining bolts securing rear flue cap to rear section. Finger- tighten only.
3.Place collector hood assembly on sections:
a.Carefully set collector hood assembly on top of section assembly. Align slotted holes in collector hood flanges with the
b.Place the collector hood assembly so its rear flange is against the rear flue cap gasket.
b.Thread flanged nuts onto
c.Insert five 5/16" x 5/8" flanged bolts through holes in rear flue cap and collector hood assembly rear flange. Thread on nuts and
4.Tighten flue collector bolts and nuts:
a.Gradually tighten all bolts and nuts on flue collector assembly and boiler.
Tighten to between 30 and 35
b.Alternate locations as you tighten the fasteners to ensure all parts are evenly drawn down, with no gaps or distortion of parts.
5.Install damper and flue caps (see Figure 11, page 13):
a.Wipe item 5, Figure 10, flue damper flange surface and flue collector assembly surfaces with a clean rag.
b.Position round gasket (item 7, Figure 10) on flue collector assembly in the flue location shown in Figure 11, page 13. Align bolt holes.
c.Place flue damper assembly on gasket. (See NOTICE, below.) Insert #10 x ½" screws through the holes. Alternate from screw to screw and tighten all screws evenly and securely.
4.Tighten flue collector bolts and nuts:
a.Gradually tighten all bolts and nuts on flue collector assembly and boiler. Tighten to between 30 and 35
b.Alternate locations as you tighten the fasteners to ensure all parts are evenly drawn down, with no gaps or distortion of parts.
Model 380 top flue applications — always mount the damper assembly with the damper adjustment plate pointed toward the rear of the boiler as shown in Figure 11. Otherwise, the jacket top panels may be difficult to install.
e.Install flue cap on remaining top opening (if any) using steps a through c, above.
5.Install damper and flue caps:
a.Wipe item 5, Figure 10, flue damper flange surface with a clean rag.
b.Apply a few pieces of
c.Position flue damper assembly against collector hood transition. Insert a #10 x ½" screw through the top center hole. Lightly tighten to hold flue damper in position.
d.Insert remaining #10 screws into flue damper flange and lightly tighten. Alternate from screw to screw and tighten all screws evenly and securely.
e.Install flue caps on flue collector top opening(s) using steps 5a through 5d.
After installing flue collector, ALL BOILERS
1. Check for
All collector hood joints must be sealed
a.Open flue damper.Visually inspect inside section assembly and flue collector assembly for any light passing through unsealed areas.
b.Mark all unsealed areas.
c.Check unsealed areas for cause — damaged gaskets, sealing rope not in place, or loose bolts or nuts.
d.Correct all conditions and repeat inspection procedure.
e.If unsealed areas cannot be eliminated, discontinue the boiler installation. Contact your
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