FULL ANGLE RING (FAR) AND HALF ANGLE
RING (HAR)
The full angle ring is used as a guide to prevent the chimney from
flexing due to lateral loading. The angle ring is split for ease of
installation. It is 1/8” larger in inside diameter than the outside
diameter of the pipe to allow movement of the pipe inside the
ring (See
FIG. 31
).
FIG. 31 – FULL ANGLE RING & HALF ANGLE RING
HALF ANGLE RING
FULL ANGLE RING
The half angle ring is used as a saddle in horizontal or sloped
runs. It may be suspended either on rigid framework or soft
frames, such as threaded rod. The half angle ring will not replace
a plate support or other fixed support in horizontal runs. It should
not be used as the sole support for the chimney.
WALL SUPPORT ASSEMBLY (WSA)
A wall support assembly consists of a full angle ring, two clamp
rings, wall brackets and struts. The clamp rings sandwich a
flange band at a pipe joint and are supported by the full angle
ring (See
FIG. 32
).
FIG. 32 – WALL SUPPORT ASSEMBLY ASSEMBLED VIEW
The clamp rings are installed with the splits 90º apart so that they
support each other. The notches in the clamp rings are aligned
with the draw screws of the flange band. The clamp rings and full
angle ring are then bolted together with the hardware provided to
form a rigid assembly (See
FIG. 33
).
FIG. 33 WALL SUPPORT ASSEMBLY EXPLODED VIEW
When attached to a non-combustible wall, with the brackets and
struts, the wall support makes up a fixed-point in the chimney. An
expansion joint is required between the wall support assembly
and any adjacent fixed point.
Multiple wall support assemblies may be used, in conjunction
with expansion joints or bellows joints, to support chimney
heights in excess of the allowable height for a single wall support
assembly.
DO NOT ATTACH THE WALL SUPPORT ASSEMBLY TO
COMBUSTIBLE CONSTRUCTION.
WALL GUIDE (WG)
The wall guide is designed to compliment the wall support
assembly. It is used as a lateral guide to prevent the chimney
from flexing due to lateral loading.
The wall guide consists of a full angle ring with wall brackets and
struts (See
FIG. 34 & 35
).
BRACKETS
STRUT
SUPPORT RING
CLAMP FLANGE
HALF CLOSURE
BAND
14
Note: For IPIC, wrap pipe joint with insulation before attaching half
closure bands.
CLAMP RING
WALL BRACKET
FULL ANGLE
RING
STRUT WALL
BRACKET
STRUT
BRACE
BRACKET
HORIZONTAL
STRUT
FULL ANGLE
RING
WALL
BRACKET
VERTICAL
STRUT
FIG. 34 – WALL GUIDE ASSEMBLY EXPLODED VIEW
