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Heatilator • CD4236IR-C, CD4842IR-C • 2207-900 Rev. J • 11/1144
B. Assemble Vent Sections (SLP Pipe Only)
To attach the fi rst vent component to the starting collars
of the appliance:
• Attach a DVP-2SL or DVP-SLP24 adapter to the starting
collar of the appliance.
• Lock the vent components into place by sliding the pipe
section onto the collar.
• Align the seam of the pipe and seam of collar to allow
engagement. Rotate the vent component to lock into
place. Use this procedure for all vent components. See
Figure 10.5.
• Slide the gasket over the fi rst vent section and place it
fl ush to the appliance. This will prevent cold air infi ltration.
Caulk with a minimum of 300ºF continuous exposure
rating may be used to hold the part in place.
• Continue adding vent components, locking each
succeeding component into place.
• Ensure that each succeeding vent component is securely
fi tted and locked into the preceding component.
Commercial, Multi-family (Multi-level exceeding two sto-
ries), or High-Rise Applications
For Installation into a commercial, multi-family (multi-level
exceeding two stories) or high-rise applications: All outer
pipe joints must be sealed with silicone with a minimum of
300ºF continuous exposure rating, including the slip sec-
tion that connects directly to the horizontal termination
cap.
• 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 fl ues shall be sealed
in this manner, unless otherwise stated.
Figure 10.5 Adding Venting Components
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.
Note: Align seams to engage pipe,
then rotate counterclockwise to lock
C. Assemble Slip Sections
• Slide the inner fl ue of the slip section into the inner fl ue of
the pipe section and the outer fl ue of the slip section over
the outer fl ue of the pipe section. See Figure 10.6.
• Slide together to the desired length.
Figure 10.6 Slip Section Pilot Holes
Figure 10.7 Screws into Slip Section
Pilot hole
Pilot hole
NOTICE: When installing a vent system with an HRC
termination cap, all pipe system joints shall be sealed using
a high temperature silicone sealant.
• Apply a bead of silicone sealant inside the female outer
pipe joint prior to joining sections.
• Only outer pipes are sealed, sealing the inner fl ue is not
required.
• All unit collar, pipe, slip section, elbow and cap outer
fl ues shall be sealed.
• Continue adding pipe as necessary following instructions
in “Assembling Pipe Sections.”
NOTICE: If slip section is too long, the inner and outer fl ues
of the slip section can be cut to the desired length.
• Maintain a 1-1/2 in. (38 mm) overlap between the slip
section and the pipe section.
• Secure the pipe and slip section with two screws no
longer than 1/2 in. (13 mm), using the pilot holes in the
slip section. See Figure 10.7.