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NOTICE: When installing a vent system with an HRC
termination cap, all pipe system joints shall be sealed
using a high temperature silicone sealant (300º F minimum
continuous exposure rating).
• Apply a bead of silicone sealant (300º F minimum
continuous exposure rating) 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.
C. Secure the Vent Sections
• Vertical runs originating off the top of the appliance, with
no offsets, must be supported every 8 ft. (2.44 m) after
the maximum allowed 25 ft. (7.62 m) of unsupported rise.
• Vertical runs originating off the rear of the appliance, or
after any elbow, must be supported every 8 ft. (2.44 m).
• Horizontal runs must be supported every 5 feet (1.52
m).
• Vent supports or plumbers strap (spaced 120º apart)
may be used to support vent sections. See Figures 7.8
and 7.9.
• Wall shield fi restops may be used to provide horizontal
support to vent sections.
• SLP ceiling fi restops have tabs that may be used to
provide vertical support.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Improper support could allow vent to sag and separate.
Use vent run supports and connect vent sections per in-
stallation instructions. DO NOT allow vent to sag below
connection point to appliance.
Figure 7.8 Securing Vertical Pipe Sections
40
Majestic • DBDV36PLATIN, DBDV36PLATIL, DBDV42PLATIN, DBDV42PLATIL Installation Manual • 2454-980 Rev. B • 5/16
120º
Figure 7.9 Securing Horizontal Pipe Sections
D. Disassemble Vent Sections
• Rotate either section (see Figure 7.10) so the seams on
both pipe sections are aligned as shown in Figure 7.11.
• Pull carefully to separate the pieces of pipe.
Figure 7.10 Rotate Seams for Disassembly
Figure 7.11 Align and Disassemble Vent Sections
120º
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