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31447-5-0214
Page 25
Installing Support Brackets
A horizontal pipe support MUST BE used for each 3 feet of horizontal
run. The pipe supports should be placed around the pipe and nailed
in place to framing members. There MUST BE a 3 inch clearance
to combustibles above 6 5/8 inch diameter pipe and elbows and
1 inch clearance on both sides and bottom of 6 5/8 inch pipe to
combustibles on all horizontal pipe sections and elbows.
Vertical runs of this vent systems must be supported every 4 feet
above the appliance flue outlet by wall brackets attached to the 6
5/8 inch vent pipe and secured with nails or screws to structural
framing members.
Figure 38
Installing Firestops
Firestops are required for safety whenever the vent system passes
through an interior wall, an exterior wall, or a ceiling. These firestops
act as a firebreak heat shield and as a means to insure that minimum
clearances are maintained to the vent system.
Horizontal runs in the vent system which pass through either interior
or exterior walls, require the use of wall firestops on both sides of
the wall through which the vent passes.
Position the firestops on both sides of the 10 inch x 11 inch hole,
previously cut. Secure with nails or screws. The heat shields of the
firestops MUST BE placed towards the top of the hole. Continue
the vent run through the firestops.
See Figure 39.
Figure 39
Vertical runs of this system which pass through ceilings require
the use of ONE ceiling firestop at the hole in each ceiling through
which the vent passes.
Position a plumb bob directly over the center of the vertical vent
component and mark the ceiling to establish the center point of the
vent. Drill a hole or drive a nail through this center point and check
the floor above for any obstructions such as wiring or plumbing
runs. Reposition the appliance and vent system, if necessary, to
accommodate ceiling joists and/or obstructions.
Cut a 10 inch x 10 inch hole through the ceiling, using the center
point previously marked. Frame the hole with framing lumber the
same size as the ceiling joists.
See Figure 40.
If the area above the
ceiling is NOT an attic, position and secure the ceiling firestop on
the ceiling side of the previously cut and framed hole.
See Figure
41.
If the area above the ceiling is an attic, position and secure the
firestop on top of the previously framed hole.
See Figure 42.
NOTE:
Remove insulation from the framed area in the attic before
installing the firestop and/or vent pipes.
6 5/8” FRAMING AND FINISHING
Summary of Contents for P)-6
Page 20: ...31447 5 0214 Page 20 Figure 29 Figure 30 Figure 31 EXAMPLES TOP VENT RUN...
Page 37: ...31447 5 0214 Page 37 Figure 57 DVVK 4FV DIRECT VENT TERMINATION KIT continued...
Page 46: ...31447 5 0214 Page 46 Figure 70 MILLIVOLT SYSTEM STANDING PILOT WIRING DIAGRAM...