Slant/Fin VSL-160C User Manual Part B
10 - INSTALLATION - Vent and combustion air
2. insert the clamp “D” into convertor
“A” in the “C” side.
3. insert the adapter “E” into connection
“C” of the convertor “A”;
4. use the precedent clamp “D” to
mechanically secure the adapter “E”
to the adapter “A”. To do this tighten
the half clamp on the adapter “A”
and half clamp on the adapter “E”.
Tight the clamps with a tork of 1.5 - 2
lbf ft (2-3 Nm).
5. insert the clamp “F” into convertor
“E”.
6. insert the air inlet PVC/CPVC pipe,
for 2” into the adapter “E”;
7. use the precedent clamp “F” to
mechanically secure the pipe to
the adapter “E”. To do this tighten
the half clamp on the pipe and half
clamp to the adapter “E”. Tight the
clamps with a tork of 1.5 - 2 lbf ft
(2-3 Nm).
Vent connection (see Figure
10-8 Item “B”). This connection
is used to provide a passageway for
conveying combustion gas to the
outside. Vent piping must be supported
per the National Building Code, Section
305, Table 305.4 or as local codes
dictate.
To connect a PVC/CPVC pipe to the
vent connection proceed as follow
while referring to Figure 10-8:
1. install boiler adapter “A” above
boiler. Rotate boiler adapter “A” so
as air intake and vent connections
are in the desired left or right side.
Check stamped arrow to understand
which is the vent and air intake
connection.
A = Two pipes boiler adapter
B = Flue exhaust connection
C = Air intake connection
D = Fixing clamp
E = PVC/CPVC adapter
F = Fixing clamp
G = PVC/CPVC pipe
H = 90° elbow
WARNING!!!
arrow on boiler adapter for the
correct side of fl ue exhaust and
air intake. Failure to follow this
warning could result in excessive
levels of carbon monoxide or a
fi re, which can result in severe
personal injury or death!
WARNING!!!
PVC/CPVC exhaust pipe nor
install into an enclosure or
any other obstruction thereby
preventing the cooling of the
exhaust pipe. Failure to follow
this warning could result in
excessive levels of carbon
monoxide or a fi re, which can
result in severe personal injury or
death!
Check stamped
Do not insulate
WARNING!!!
stamped arrow on boiler adapter
for the correct side of vent.
Failure to follow this warning
could result in excessive levels
of carbon monoxide or a fi re,
which can result in severe
personal injury or death!
2. Insert one side of clamp “D” onto the
air intake of boiler adapter “A” (side
C).
3. Insert adapter “E” into side “C” of
boiler adapter “A”;
4. Use clamp “D” to mechanically
secure adapter “E” to boiler adapter
“A”. To do this, tighten one side of
clamp “D” onto boiler adapter “A”
and the other half of clamp “D” onto
adapter “E”. Tight the clamps with a
tork of 1.5 - 2 lbf ft (2-3 Nm).
5. Insert clamp “F” into adapter “E”.
6. Insert the PVC/CPVC pipe “G”, into
adapter “E” for at least 2”;
7. Use clamp “F” to mechanically
secure pipe “G” to adapter “E”. To
do this, tighten one side of clamp “F”
onto pipe “G” and the other side of
clamp “F” to the adapter “E”. Tight
the clamps with a tork of 1.5 - 2 lbf ft
(2-3 Nm).
Check
Figure 10-8 PVC/CPVC Venting connection
37
10 - INSTALLATION - Vent and combustion air
10.8 - Stainless
steel vent piping
materials
WARNING!!!
materials, vent systems, and
terminations listed in Tables
10-1 and 10-2. DO NOT mix
vent systems of different types
or manufacturers, unless
listed in this manual. Failure to
comply could result in severe
personal injury, death, or
substantial property damage.
Use only the
WARNING!!!
appliance requires a special
venting system. The fi eld
provided vent fi ttings must
be connected to the boiler
following Section 10.8.1.
Failure to follow this warning
could result in fi re, personal
injury, or death.
WARNING!!!
installation of Stainless steel
systems may result in injury or
death.
WARNING!!!
water-based lubricants on joints.
Never use hydrocarbons-based
lubricants because they would
destroy gaskets.
follow this warning could result
in excessive levels of carbon
monoxide, which can result
in severe personal injury or
death!
This
Improper
Use only
Failure to
A = Flue exhaust connection
B = Combustion air intake connection
C = Fixing clamp
D = Stainless steel elbow
E = Stainless steel adaptor
F = Stainless steel extension
G = Air intake pipe
WARNING!!!
arrow on boiler adapter for the
correct side of fl ue exhaust and
air intake. Failure to follow this
warning could result in excessive
levels of carbon monoxide or a
fi re, which can result in severe
personal injury or death!
Check stamped
NOTICE Installation must comply with
local requirements and with the National
Fuel Gas Code, ANSI Z223.1 for U.S.
installations or CSA B149.1 for Canadian
installations.
For installation in Canada, vent pipe
system must be certifi ed to ULC-S636
(see Table 10-1).
NOTICE All vent pipes connections
must be secured following manufacturer
instruction, properly supported, and the
exhaust must be pitched a minimum of
a 1/4 inch per foot back to the boiler (to
allow drainage of condensate).
NOTICE Installation of a stainless
steel vent system should adhere to
the stainless steel vent manufacturer’s
installation instructions supplied with
the vent system.
NOTICE The installer must use a
specifi c vent starter adapter at the
fl ue collar connection, supplied by the
vent manufacturer to adapt to its vent
system. See Table 10-2 for approved
vent adapters.
Figure 10-9 Stainless Steel Venting connection
38
10 - INSTALLATION - Vent and combustion air
10.8.1 - Stainless steel air
intake/vent connections
Combustion Air Intake
connection (see Figure 10-9
Item “C”). This connection is used
to provide combustion air directly to
the boiler from outdoors. Combustion
air piping must be supported per
guidelines listed in the National
Mechanical Code, Section 305, Table
305.4 or as local codes dictate.
To connect a PVC/CPVC pipe to the
air intake connection follow section
10.7.2.
Vent connection (Figure
10-9 item “A”) is used to provide
a passageway for conveying
combustion gases to the outside. Vent
piping must be supported per the
National Building Code, Section 305,
Table 305.4 or as local codes dictate.
To connect a stainless steel pipe to
the vent connection proceed as follow:
while referring to Figure 10-9:
1. install boiler adapter “A” above
boiler. Rotate boiler adapter “A” so
as air intake and vent connections
are in the desired left or right side.
Check stamped arrow to understand
which is the vent and air intake
connection.
WARNING!!!
stamped arrow on boiler adapter
for the correct side of vent.
Failure to follow this warning
could result in excessive levels
of carbon monoxide or a fi re,
which can result in severe
personal injury or death!
Check
2. Insert clamp “D” onto side “B” of
boiler adapter “A” .
3. Insert adapter “E” into side “B” of
boiler adapter “A”;
4. Use clamp “D” to mechanically
secure adapter “E” to boiler adapter
“A”. To do this tighten one side of
clamp “D” onto boiler adapter “A”
and the other half of clamp “D” onto
adapter “E”.
tork of 1.5 - 2 lbf ft (2-3 Nm).
5. Insert vent pipe “G”, into adapter
“E”, following instruction of stainless
steel pipe manufacturer.
Tight the clamps with a
39
10 - INSTALLATION - Vent and combustion air
10.9 - Polypropylene
vent piping materials
WARNING!!!
the materials listed in Tables
10-1 and 10-2 for vent pipe,
and fi ttings.
systems of different types or
manufacturers, unless listed in
this manual.
could result in severe personal
injury, death, or substantial
property damage.
WARNING!!!
requires a special venting
system. The fi eld provided vent
fi ttings must be connected to the
boiler following Section 10.9.1.
Failure to follow this warning
could result in fi re, personal
injury, or death.
WARNING!!!
installation of Polypropylene
systems may result in injury or
death.
Use only
DO NOT mix vent
Failure to comply
This appliance
Improper
WARNING!!!
water-based lubricants on joints.
Never use hydrocarbons-based
lubricants because they would
destroy gaskets.
follow this warning could result
in excessive levels of carbon
monoxide, which can result
in severe personal injury or
death!
NOTICE Installation must comply with
local requirements and with the National
Fuel Gas Code, ANSI Z223.1 for U.S.
installations or CSA B149.1 for Canadian
installations.
For installation in Canada, vent pipe
system must be certifi ed to ULC-S636
(see Table 10-1).
NOTICE All vent pipes connections
must be secured following manufacturer
instruction, properly supported, and the
exhaust must be pitched a minimum of
a 1/4 inch per foot back to the boiler (to
allow drainage of condensate).
NOTICE Installation of a
Polypropylene vent system should
adhere to the polypropylene vent
manufacturer’s installation instructions
supplied with the vent system.
Use only
Failure to
Figure 10-10 Polypropylene boiler adaptor
40
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
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”
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!
Carefully
Figure 10-11 Polypropylene Venting connection
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).
Figure 10-12 Connecting extensions and elbows
41
10 - INSTALLATION - Vent and combustion air
10.9.2 - Polypropylene two pipes
system components
Some of the most commonly used components
for installing the two pipes polypropylene vent
and combustion air systems are listed below:
P/N 81 9001 000 - Two pipes adaptor 80/80 PP
P/N 81 9171 000 - 3ft PP M/F extension
P/N 81 9772 000 - 60 ft PP fl exible extension
P/N 81 9173 000 - Spacer for PP fl exible extension
P/N 81 9003 000 - 90° PP M/F in line elbow
P/N 81 9174 000 - 45° PP M/F in line elbow
P/N 81 9175 000 - Secure clamp for PP extensions
P/N 81 9177 000 - Split vertical terminal
P/N 81 9181 000 - Air intake grid
P/N 81 9182 000 - Flue exhaust grid
Figure 10-13 Dimensions of two pipes system
81 9001 000
81 9182 000
81 9181 000
81 9177 000
81 9772 000
81 9173 000
81 9003 000
81 9171 000
81 9175 000
42
81 9174 000
10 - INSTALLATION - Vent and combustion air
10.9.3 - Polypropylene
concentric system
The boiler is not supplied with the
fi ttings needed for connecting a
coaxial vent/combustion air system.
A special kit must be ordered to
connect the boiler with the Coaxial
polypropylene vent. Figure 10-14
shows how to install the Coaxial fi tting
above the boiler. Tight the screws “D”
of Figure 10-14 with a tork of 2 lbf ft
(3 Nm)
B = Connection fl ange
C = Fasten clip
D = Fasten clip screw
F = Coaxial vertical adaptor
Figure 10-14 Installation of the coaxial fi tting
WARNING!!!
follow installation steps below,
for the coaxial pipe assembly
(elbows and extensions), as
illustrated in Figure 10-15. It is
necessary to properly insert
the internal and external pipe
and mechanically secure them
by using a stainless steel
self tapping screw. Improper
venting can result in excessive
levels of carbon monoxide or a
fi re, which can result in severe
personal injury or death!
In particular:
1. slip-fi t the extension “1” and “2”
(see Figure 10-15) together;
2. drill a suitable hole “3” with a drill
“4” (see Figure 10-15) in a position
where the two pipes “1” and “2” are
overlapped;
3. insert a suitable stainless steel self
tapping screw “5” and tight it with a
screwdriver “6”
Carefully
Figure 10-15 Securing extensions and elbows together
43
It is recommended that wall sleeve
be used when installing the coaxial
system through an exterior wall.
This will allow the system to be
easily slipped out for access during
routine maintenance.
Horizontal coaxial systems must
always be pitched by at least 1/4 in/
ft, (21 mm/m) towards the boiler.
10 - INSTALLATION - Vent and combustion air
10.9.4 - Polypropylene concentric
system components
The following coaxial polypropylene vent and
combustion air system components are available, on
request, for installing the Coaxial system
P/N 81 9183 000 - In line 90° PP coaxial M/F elbow
P/N 81 9176 000 - In line 45° PP coaxial M/F elbow
81 9183 000
P/N 81 9170 000 - 3ft (1m) PP coaxial extension
P/N 81 9005 000 - PP coaxial roof end piece
P/N 81 9184 000 - PP Coaxial wall end piece
P/N 81 9185 000 - PP straight coaxial adaptor
81 9176 000
81 9185 000
81 9170 000
81 9005 000
81 9184 000
44
10 - INSTALLATION - Vent and combustion air
10.10 - Single pipe
vent (not sealed
combustion)
WARNING!!!
utilizing the single pipe method,
provisions for combustion
and ventilation air must be
in accordance with Air for
Combustion and Ventilation, of
the latest edition of the National
Fuel Gas Code, ANSI Z223.1,
in Canada, the latest edition of
CGA Standard B149 Installation
Code for Gas Burning Appliances
and Equipment, or applicable
provisions of the local building
codes.
Commercial applications utilizing this
boiler may be installed with a single
pipe carrying the fl ue products to the
outside while using combustion air from
the equipment room. In this case the
following conditions and considerations
must be followed.
WARNING!!!
equipment room MUST be
provided with properly sized
openings to assure adequate
combustion air from outside.
Failure to comply could result in
severe personal injury, death, or
substantial property damage.
• There will be a noticeable increase
in the noise level during normal
operation from the inlet air opening.
• Vent system and terminations must
comply with the venting instructions
set forth in sections 10.1, 10.2,
10.3, 10.4, 10.5, 10.7, 10.8 and
10.9.
WARNING!!!
materials, vent systems, and
terminations listed in Tables
10-1 and 10-2. DO NOT mix vent
systems of different types or
manufacturers, unless listed in
this manual. Failure to comply
could result in severe personal
injury, death, or substantial
property damage.
When
The
Use only the
WARNING!!!
due to fl ammable materials or
liquids. Do not store fl ammable
materials and liquids in the
immediate vicinity of the boiler.
WARNING!!!
must be clear and free from
combustible materials, gasoline
and other fl ammable vapors and
liquids, and corrosive liquids
and vapors. Never use chlorine
and hydrocarbon containing
chemicals (such as spray
chemicals, solution and cleaning
agents, paints, glues etc.) in the
vicinity of the boiler. Do not store
and use these chemicals in the
boiler room. Avoid excessive dust
formation and build-up.
WARNING!!!
fans, clothes dryers, and kitchen
ventilation systems interfere
with the operation of appliances,
makeup air shall be provided.
NOTICE Installation must comply with
local requirements and with the National
Fuel Gas Code, ANSI Z223.1 for U.S.
installations or CSA B149.1 for Canadian
installations.
For installation in Canada, vent pipe
system must be certifi ed to ULC-S636 (see
Table 10-1).
NOTICE All vent pipes connections
must be secured following manufacturer
instruction, properly supported, and the
exhaust must be pitched a minimum of a
1/4 inch per foot back to the boiler (to allow
drainage of condensate).
Fire danger
Boiler
Where exhaust
10.10.1 - Combustion Air
and Ventilation openings
Outdoor combustion air shall be provided
through opening(s) to the outdoors. The
minimum dimension of air openings shall
not be less than 3 in. (80 mm) diameter.
Two Permanent Openings Method.
Two permanent openings, one
commencing within 12 in. (300 mm)
of the top and one commencing within
12 in. (300 mm) of the bottom, of the
room shall be provided. The openings
shall communicate directly, or by ducts,
with the outdoors or spaces that freely
communicate with the outdoors, as
follows:
1. Where directly communicating with the
2. Where communicating with the
One Permanent Opening Method. One
permanent opening, commencing within
12 in. (300 mm) of the top of the room,
shall be provided. The appliances shall
have clearances of at least 1 in. (25 mm)
from the sides and back and 6 in. (150
mm) from the front of the appliance.
The opening shall directIy communicate
with the outdoors or shall communicate
through a vertical or horizontal duct
to the outdoors or spaces that freely
communicate with the outdoors and shall
have a minimum free area of 1 in2 each
3000 Btu/hr (700 mm2 /kW) of the total
input rating of all appliances located in
the room
45
WARNING!!!
combustion air and ventilation
openings are suffi ciently sized
and no reduction or closure of
openings takes place. Please
note these restrictions and its
dangers to the operator of the
boiler and to the homeowner.
Failure to comply could result in
severe personal injury, death, or
substantial property damage.
outdoors or where communicating to
the outdoors through vertical ducts,
each opening shall have a minimum
free area of 1 in2 each 4000 Btu/hr
(550 mm2/kW) of total input rating of
all appliances located in the room.
outdoors through horizontal ducts,
each opening shall have a minimum
free area of 1 in2 each 2000 Btu/hr
(1100 mm2/kW) of total input rating of
all appliances located in the room.
Make sure that
10 - INSTALLATION - Vent and combustion air
10.10.2 - Determine
location
Locate the vent termination using the
following guidelines:
1. The total length of piping for vent must
not exceed the limits given in the
Section 10.4.
2. You must consider the surroundings
when terminating the vent:
a. Position the vent termination where
vapors will not damage nearby
shrubs, plants or air conditioning
equipment or be objectionable.
b. The fl ue products will form a
noticeable plume as they condense
in cold air. Avoid areas where
the plume could obstruct window
views.
c. Prevailing winds could cause
freezing of condensate and water/
ice buildup where fl ue products
impinge on building surfaces or
plants.
d. Avoid possibility of accidental
contact of fl ue products with people
or animals.
e. Do not locate the terminations
where wind eddies could affect
performance or cause recirculation,
such as inside building corners,
near adjacent buildings or surfaces,
window wells, stairwells, alcoves,
courtyards, or other recessed
areas.
f. Do not terminate above any door or
window. Condensate can freeze,
causing ice formations.
g. Locate or guard vent to prevent
condensate damage to exterior
fi nishes.
4. The vent piping must terminate in an
elbow pointed outward as shown in
Figure 10-12 or 10.13.
WARNING!!!
exceed the maximum lengths
of the outside vent piping
shown in Figures 10-12 or 10-13.
Excessive length exposed to the
outside could cause freezing
of condensate in the vent pipe,
resulting in potential boiler
shutdown.
Do not
5. Maintain clearances as shown in
Figure 10-11 (get references to
“Mechanical draft vent terminal”
only). Also maintain the following:
a. Vent must terminate:
• At least 6 feet from adjacent walls.
• No closer than 12 inches below
roof overhang.
• At least 7 feet above any public
walkway.
• At least 3 feet above any forced
air intake within 10 feet.
• No closer than 4 feet below or
horizontally from any door or
window or any other gravity air
inlet.
b. Do not terminate closer than 4
feet horizontally from any electric
meter, gas meter, regulator, relief
valve, or other equipment. Never
terminate above or below any of
these within 4 feet horizontally.Item
unique to CANADA: vent system
shall terminate at least 6 ft from
electrical and gas meters.
6. Locate termination so it is not likely to
be damaged by foreign objects, such as
stones or balls, or subject to buildup of
leaves or sediment.
CAUTION!!!
Increase the grade clearances of the snow line quote
Figure 10-16 Vent position of a Direct vent boiler and of a Mechanical draft boiler (not sealed)
46
10 - INSTALLATION - Vent and combustion air
10.11 - Sidewall
termination - Two
pipes
10.11.1 - Vent/air
termination
WARNING!!!
extending through an exterior
wall shall not terminate
adjacent to a wall or below
building extensions such as
eaves, parapets, balconies, or
decks. Failure to comply could
result in severe personal injury,
death, or substantial property
damage.
WARNING!!!
connect any other appliance
to the vent pipe or multiple
boilers to a common vent
pipe. Failure to comply could
result in severe personal injury,
death, or substantial property
damage.
NOTICE Installation must comply
with local requirements and with the
National Fuel Gas Code, ANSI Z223.1
for U.S. installations or CSA B149.1
for Canadian installations.
A gas vent
Do not
10.11.2 - Determine
location
Locate the vent/air terminations using
the following guidelines:
1. The total length of piping for vent or
air must not exceed the limits given
in the Section 10.4.
2. You must consider the surroundings
when terminating the vent and air:
a. Position the vent termination
where vapors will not damage
nearby shrubs, plants or air
conditioning equipment or be
objectionable.
b. The fl ue products will form
a noticeable plume as they
condense in cold air. Avoid areas
where the plume could obstruct
window views.
c. Prevailing winds could cause
freezing of condensate and
water/ice buildup where fl ue
products impinge on building
surfaces or plants.
d. Avoid possibility of accidental
contact of fl ue products with
people or animals.
e. Do not locate the terminations
where wind eddies could
affect performance or cause
recirculation, such as inside
building corners, near adjacent
buildings or surfaces, window
wells, stairwells, alcoves,
courtyards, or other recessed
areas.
f. Do not terminate above any door
or window. Condensate can
freeze, causing ice formations.
g. Locate or guard vent to prevent
condensate damage to exterior
fi nishes.
47
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