23
Initial Installation
QUALIFIED INSTALLERS ONLY
Figure 27: Installing Vent Cap with Vinyl Siding
Stand-Off.
Figure 28: Installing Horizontal Vent
Termination�
NOTES:
(a)
The four (4) wood screws provided should be replaced with the appropriate fasteners for stucco,
brick, concrete, or other types of siding.
(b)
For buildings with vinyl siding, a vinyl siding standoff, should be installed between the vent cap and
the exterior wall (see Figure 27). Attach the vinyl siding standoff to the horizontal termination. The vinyl
siding standoff prevents excessive heat from possibly melting the vinyl siding material. Note that the
horizontal vent termination bolts onto the flat portion of the vinyl siding standoff (shaded area in Figure
27), so that an air space will exist between the wall and the vent termination.
(c)
The horizontal run of vent pipe must be level and should have a ¼ inch rise for every one
foot of run towards the termination� Never allow the vent to run downward. This could cause high
temperature and may present the possibility of a fire.
(d)
The location of the horizontal vent termination on the exterior wall must not be easily blocked or
obstructed. Refer to
I
nItIal
I
nstallatIon
- v
ent
c
onFIGuratIons
and
r
estrIctor
s
ettInGs
.
(e)
When installing a vent pipe in a chase the minimum clearance to combustibles is 2” (51 mm).
(f)
Maintain manufacturer’s clearances to combustibles with venting.
Summary of Contents for Westport Steel
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