Slant/Fin VSL-160B Installation Instructions Manual page 41

10 - INSTALLATION - Vent and combustion air
10.9.1 - Polypropylene
two pipes air intake/vent
connections
Combustion air piping and vent piping
must be supported per guidelines
listed in the National Mechanical
Code, Section 305, Table 305.4 or as
local codes dictate.
The boiler is not supplied with the
fi ttings needed for separate vent and
combustion air systems. A special kit
must be ordered to connect the boiler
to separate vent and combustion air
Figure 10-11 Polypropylene Venting connection
Figure 10-12 Connecting extensions and elbows
systems. Figure 10-10 shows fi tting
"A" that can freely turn 360 degrees
for optimum installation versatility (see
section 10.9.2 for P/N of "A" fi tting).
Tork screws "D" at 2 lbf ft (3 Nm).
Pipes or elbows connected directly
to the boiler, must be mechanically
secure. Follow these instructions to
connect pipes to the boiler (make
reference to Figure 10-11):
1. Prepare the two collars "G" with
Band Clamps "E" and "F";
2. Insert the end of Band Clamp "L"
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into hole "M" of boiler adapter "A"
3. Insert vent pipe "N" into boiler
adapter "A"
4. Tight the two Band Clamps "O" to
mechanically secure vent pipe "N"
to boiler adapter "A". Tight band
clamps with a tork of 1.5 - 2 lbf ft
(2-3 Nm).
The vent system must be both gas
tight and watertight. All seams and
joints must be joined and sealed in
accordance with the vent system
manufacturer's instructions.
WARNING!!!
follow the installation steps
below for the assembling the
two pipes venting system
(elbows and extensions), as
illustrated in Figure 10-12. it is
necessary to properly insert
the male side onto the female
side and mechanically secure
them by using the proper
clamps. Improper venting can
result in excessive levels of
carbon monoxide or a fi re,
which can result in severe
personal injury or death!

Mechanically secure each joint
with the supplied band clamps as
shown in Figure 10-12. Follow this
procedure:
1. Insert the Male side ("B") of a vent
pipe into the Female side "A" of
another;
2. Use Band Clamp "C" to keep the
two pipes together;
3. Use screws "E" to tighten the Band
Clamp onto both pipes. Tight band
clamps with a tork of 1.5 - 2 lbf ft
(2-3 Nm).
Carefully