Assemble Pipe Sections

10 Installing Vent Pipe (DVP and SLP Pipe)

A. Assemble Vent Sections (DVP Pipe Only)

Attach Vent to the Firebox Assembly

Note: The end of the pipe sections with the lanced tabs will face toward the appliance.

Attach the ﬁrst pipe section to the starting collar:

•Lanced pipe end to the starting collar

•Inner pipe over inner collar

•Push the pipe section until all lanced tabs snap in place

•Lightly tug on pipe to conﬁrm it has locked.

Commercial, Multi-family (Multi-level exceeding two sto- ries), or High-Rise Applications

All outer pipe joints must be sealed with high temperature silicone, including the slip section that connects directly to the horizontal termination cap.

Figure 10.1 High Temperature Silicone Sealant

•Apply a bead of silicone sealant inside the female outer pipe joint prior to joining sections. See Figure 10.1

•Only outer pipes need to be sealed. All unit collar, pipe, slip section, elbow and cap outer ﬂues shall be sealed in this manner, unless otherwise stated.

WARNING! Risk of Fire or Explosion! DO NOT break silicone seals on slip sections. Use care when remov- ing termination cap from slip pipe. If slip section seals are broken during removal of the termination cap, vent may leak.

Figure 10.2

Lances

Figure 10.3

Per Figure 10.2:

•Start the inner pipe on the lanced end of section A into the ﬂared end of section B.

•Start the outer pipe of section A over the outer pipe of section B.

•Once both vents sections are started, push ﬁrmly until all lanced tabs lock into place.

•Lightly tug on the pipe to conﬁrm the tabs have locked.

It is acceptable to use screws no longer than 1/2 in. (13

mm)to hold outer pipe sections together. If predrilling holes, DO NOT penetrate inner pipe.

For 90° and 45° elbows that are changing the vent direction from horizontal to vertical, one screw minimum should be put in the outer ﬂue at the horizontal elbow joint to prevent the elbow from rotating. Use screws no longer than 1/2 in. (13 mm). If predrilling screw holes, DO NOT penetrate inner pipe.

Note: Make sure that the seams are not aligned to prevent unintentional disconnection.

CORRECT

Figure 10.4 Seams

INCORRECT

Heat & Glo • SL-750TRS-IPI-E, SL-550TRS-IPI-E, SL-350TRS-IPI • 2120-901 Rev. G • 11/08

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