Heat & Glo • XLR-PLUS-N-AU, XLR-PLUS-PB-AU • 2264-900 Rev. M • 7/12 32
C. InstalltheCeilingFirestop
A ceiling restop MUST be used between
oors and attics.
• SLPpipeonly - Frame opening 9 in. x 9
in. (229 mm x 229 mm) whenever the vent
penetrates a ceiling/floor (see Figure 8.3).
• Frame the area with the same sized lumber
as used in ceiling/oor joist.
• The ceiling restop may be installed above or
below the ceiling joists when installed with a
attic insulation shield. It must be under joists
between oors that are not insulated. Refer
to Figure 8.4.
• Secure with three fasteners on each side.
WARNING! Risk of Fire! DO NOT pack insu-
lation around the vent. Insulation must be kept
back from the pipe to prevent overheating.
Figure8.3 InstallingCeilingFirestop
ATTIC ABOVE
A
PIPE
SLP
A
9 in. (229 mm)
A
Figure8.4InstallingtheAtticShield
3 FASTENERS
PER SIDE
INSTALL ATTIC INSULATION SHIELDS
BEFORE OR AFTER INSTALLATION OF VENT SYSTEM
CEILING FIRESTOP
INSTALLED BELOW CEILING
CEILING FIRESTOP
INSTALLED ABOVE CEILING