23
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
SECTION E - LOCATION OF SUPPORTS
Supports can be used in different combinations to secure chimney in place. See
Figure 3 and 4,
for typical support and guide locations.
ADJUSTABLE, VARIABLE and BELLOW LENGTH SUPPORT
To prevent the LV, LA
or LB from sagging, it is recommended that the chimney section
adjacent to a LV, LA
or LB
is supported or guided. See
Figure 52
for typical support
locations for Adjustable and Variable Length.
When necessary, properly guide an adjustable length by installing a Heavy Duty Wall
Guide
(WGHD)
or any supports immediately below the chimney joint on the adjacent
section.
Figure 52 - Typical Installation locations for the Variable and
Adjustable Lengths
NOTE
:
Both LV, LA
and LB
overlapping joints are not intended to support any
weight in the vertical position. The inlet and outlet ends must each be
supported.
TEE SUPPORT
The Tees must be supported properly to protect them from bending. It can be done
by means of Anchor Plate
(AP),
or Heavy Duty Wall Support
(WSHD).
When a tee is used at the base of the riser, the preferred location for support is above
the Tee, thus suspending the Tee. The Anchor Plate with Length
(APL)
can be used only
as a free support on its axis (vertical or horizontal). See
Figure 55.
A Heavy Duty Wall Support (WSHD), an Anchor Plate (AP) or an Anchor Plate with
length (APL) can be used to support the TEE.
Figure 55- Suspended Tee Support
Figure 54- Support for Multiple Tees
Concrete Wall
Vent Section
Vent Section
Half Closure Band
(DBSE)
Heavy Duty Wall Support
(HDWS)
Half Closure Band
(DBSE)
Tee Section (T90)
NOTE:
In the case of an Anchor Plate
(AP),
refer to
Figure 41a and 41b
for
installation. For the Anchor Plate with Length
(APL)
, Refer to a
Figure 43
to 46 f
. If it is not possible to suspend the Tee, it may be supported from
the base (See
Table 3
) for maximum height for a base Supported Tee.
When this type of support is necessary, access to the drain cap may be
hindered. A structural steel stand can be used to allow access to the Tee
Cap
(TC)
or Drain Tee Cap
(DTC)
.
Figure 53- Location for Bellow Lengths
