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103448-10- 6/18
1. Components
a. For use on models ALP080B through
ALP285B, U.S. Boiler Company offers
sizes 3 in. and 4 in. vent pipe and fittings
shown in Table 10A. It is the responsibility
of the installing contractor to procure
stainless steel vent system pipe and related
components.
b. Alternate listed stainless steel vent system
manufacturers and components are shown
in Table 10B.
c. Where the use of “silicone” is called for
in the following instructions, use GE RTV
106 or equivalent for the vent collar. Seal
galvanized combustion air piping sections
with any general-purpose silicone sealant
such as GE RTV102. Seal PVC combustion
air piping sections with PVC cement.
d. Do not drill holes in vent pipe.
2. Field Installation of CPVC/PVC Two-Pipe
Vent System Connector and PVC to
Stainless Steel Adapter - Floor Mounted
Boiler (F) Builds
a.
Models ALP080B(F) through
ALP285B(F):
Install CPVC/PVC Two-Pipe
vent system connector. Follow instructions
in “2. Field Installation of CPVC/PVC Two-
Pipe Vent System Connector” under “B.
CPVC/PVC Venting.” See also Figures 9
and 17.
b. Apply provided dielectric grease (grease
pouch taped to the vent system connector)
all around to the vent or air connection inner
red silicon gasket.
c. Push and twist PVC to stainless steel
adapter into two-pipe vent system
connector vent or combustion air supply
port until bottomed out. See Figure 17.
d. Tighten the worm band clamp screw to
secure PVC to stainless steel adapter.
e. Do not install PVC to stainless steel adapter
at the lower combustion air supply port of
the two-pipe vent system connector when
using PVC pipe for combustion air supply to
boiler.
3. Field Installation of PVC to Stainless Steel
Adapter into 90° Vent Elbow – Wall Mounted
Boiler (W) Builds
a.
Models ALP080B (W) through
ALP210B(W):
Carefully insert extended
PVC to stainless steel adapter (105290-01)
from top through air collar plate assembly
and plate gasket vent opening into boiler air
box.
b. Apply provided dielectric grease (grease
pouch taped to the vent elbow) all around to
the vent elbow inner red silicon gasket.
c. Align the adapter end with the elbow inlet
and slide it down with a slight twisting
motion until the adapter lower end is firmly
inserted into the elbow.
d. Tighten the elbow worm band clamp screw
to secure PVC to stainless steel adapter.
e. Install PVC or galvanized steel pipe onto
the air plate assembly combustion air inlet
collar and seal around vent and air pipe
with Sil-Bond RTV 4500 or equivalent caulk.
See Figure 15A.
IV. Venting
D. Stainless Steel Venting (continued)
WARNING Failure to properly secure the
vent adapter lower end into the elbow with the
clamp could lead to property damage, personal
injury or loss of life.
Summary of Contents for Alpine ALP080B
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