Lennox 92W76 Installation Instructions Manual Download Page 4

Page 4

FIGURE 2

Type B Double Wall Vent Connector with Interior Tile−Lined Masonry

Chimney Serving a Single Furnace Equipped with Vent Adapter Kit

Type B Double Wall Vent Connector with Interior or Exterior Tile−Lined Masonry Chimney Serving a

Single Furnace Equipped with Vent Adapter Kit and One or More Drafthood−Equipped Appliances

(Typical Application Shown)

FIGURE 3

TILE−LINED

MASONRY

CHIMNEY

PERMANENTLY
SEALED FIREPLACE
OPENING

FURNACE

B VENT

VENT

ADAPTER

ASSEMBLY

TILE−LINED

MASONRY

CHIMNEY

PERMANENTLY
SEALED FIREPLACE
OPENING

FURNACE

OTHER

APPLIANCE

B VENT

VENT

ADAPTER

ASSEMBLY

L

H

R

R = VENT

CONNECTOR

RISE

H

Summary of Contents for 92W76

Page 1: ...ed in masonry chimney vent applications in accordance with limitations set by NFPA 54 and the International Mechanical Code The included vent tables and guidelines must be followed exactly to ensure p...

Page 2: ...10 F 12 C Pittsburgh 1 F 17 C Salt Lake City 3 F 16 C St Louis 2 F 17 C Requirements The room temperature surrounding the furnace and vent connectors must be at least 60 F 16 C The space surrounding t...

Page 3: ...mney and vent connector per table 3 and figure 2 when a single appliance is being vented into an interior masonry chimney Size the chimney and vent connector per tables 4 and 5 and figure 3 when using...

Page 4: ...le Lined Masonry Chimney Serving a Single Furnace Equipped with Vent Adapter Kit and One or More Drafthood Equipped Appliances Typical Application Shown FIGURE 3 TILE LINED MASONRY CHIMNEY PERMANENTLY...

Page 5: ...145 148 179 206 210 240 276 10 1 2 3 108 129 148 153 184 209 216 247 281 15 1 2 3 114 134 153 164 192 215 229 260 292 20 1 2 3 119 138 157 173 199 222 239 270 301 30 1 2 3 127 145 163 187 209 233 255...

Page 6: ...sing mortar or brick must be replaced Tile liner and top seal must be in good condition If necessary make repairs All debris mortar tile fuel oil residue etc must be removed from chimney clean out Til...

Page 7: ...to the furnace flue tran sition and the vent pipe at all times 6 The vent adapter assembly includes a blocked vent switch which must be wired into the furnace combustion air proving pressure switch a...

Page 8: ...al setting 11 Test the furnace for proper draft and spillage a Inspect the venting system for proper size and horizontal pitch Determine that there is no blockage restriction leakage corrosion or othe...

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