Hearth and Home Technologies GDST3831I - Manual (Page 36)

Heatilator • GDST3831I • 2127-900 Rev. F • 10/08 36
B. 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 10.3.
• Slide together to the desired length.
Figure 10.3 Slip Section Pilot Holes
Figure 10.4 Screws into Slip Section
Pilot hole Pilot hole
• 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.
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.
• 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 10.4.
Figure 10.5 Securing Vertical Pipe Sections
Figure 10.6 Securing Horizontal Pipe Sections
C. Securing the Vent Sections
• Vertical runs of pipe must be supported every 8 ft. (2.44 m).
• Horizontal sections must be supported every 5 feet
(1.52 m).
• Vent supports or plumbers strap (spaced 120º apart)
may be used to support. See fi gures 10.5 and 10.6.
• Wall shield fi restops may be used to provide horizontal
support.
• Ceiling fi restops have tabs that may be used to provide
vertical support.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Improper support may 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.