Pre-Installation Considerations; General Installation Requirements; Clearances To Combustibles - Burnham SCG Installation & Service Instructions Manual

1. Saf-T Vent SC is an advanced concentric vent
system designed for zero clearance installation
in residential applications. The inner wall is
constructed from superferritic AL29-4C
steel. The outer wall is also constructed from
stainless steel, providing durability and a lasting
fi nish.
2. As a Special Gas Vent system: Saf-T Vent is
approved for use on ANSI Category I, II, III, and
IV Gas-Burning Appliances and certain Direct Vent
Appliances. Saf-T Vent SC is appropriate for use on
appliances that specify an AL29-4C venting system.
3. As a Sealed Combustion system: The unique
concentric design of Saf-T Vent SC also allows it
to function as a pipe-in-a-pipe vent. Products of
combustion are exhausted out through the inner wall
while combustion air is drawn in through the outer
wall. An appliance can be direct-vented with only
a single penetration through the building structure.
This application must be approved by the
Appliance Manufacturer.
Note: Saf-T Vent SC includes an integral seal and
does not require RTV sealant. However, sealant
may be necessary when connecting Saf-T Vent SC
components directly to certain appliance fl ue collars
and to the gasket-less Saf-T Vent GC and Saf-T Vent
CI vent systems.
For applications up to 550°F/288°C, approved
sealants include GE RTV 106 and Dow Corning
736.
For applications up to 300°F/149°C, approved
sealants include GE RTV 106 and Dow Corning
732.

4. Pre-Installation Considerations:

• Proper planning prior to installation is essential
as to avoid possible contact with concealed
plumbing or electrical wiring inside walls,
fl oors or ceilings as well as maintaining proper
clearances. Be sure to plan a suffi cient number
of supports for the entire system that will
maintain the required straight-line pitch and hold

Clearances to Combustibles:

D a i m t e r e
" 3 - " 4
28
®
stainless
C e l a a r c n e o t
M a i x m
C o m b u t s b i e l
G a s e T
M a e t i r l a
5
" 0
3
" 1 4
4
" 0
" 1 5
" 0 5

5. General Installation Requirements:

• Saf-T Vent SC vent sections, or other Saf-T
• More than one appliance may not be
• Any penetrations of ceilings, fl oors or walls must
• Whenever gas-burning equipment is installed in
• The vent system shall not be routed into,
• Seal weather exposed joints of the outer jacket
• Combustible Material is any material made of
• Non-Combustible Material is any material that
u m F u l e
O r e i t n t a o i n
m . p ° ( ) F
V e t r c i a , l
5 0
N o O f s f e s t
3 0
H o i r o z n a t , l
0 0
V e t r c i l a i w h t
0 0
O f s f e s t
5 0
5 0 A n y
the system in place. A continuous straight-line
pitch of at least ¼" (2°) to the foot on horizontal
runs must be maintained in order to properly rid
the system of the corrosive condensate.
Vent products, must be used throughout the
entire length of the system. Alternatives such
as galvanized pipe, PVC, nonmetallic pipe,
prefabricated chimney, fi eld-fabricated vents
or Type B vent sections must not be used. Do
not mix pipes, fi ttings, or joining methods from
different manufacturers.
interconnected to any part of the venting system.
be properly fi re-stopped.
the same space where halogenated substances
may exist (refrigerants, solvents, bleaches,
salts, etc.), clean outside air must be utilized for
combustion.
through or within any other actively used vent or
chimney.
with foil tape or an exterior grade silicone
sealant.
or surfaced with wood, compressed paper, plant
fi bers, or other materials that are capable of
being ignited or burned. Such material shall be
considered combustible even though it is fl ame-
proofed, fi re-retardant, or plastered. (Source:
NPFPA54/ANSI Z223.1-1999.)
is not capable of being ignited and burned, such
material consisting entirely of, or a combination
of, steel, iron, brick, tile, concrete, slate,
asbestos, glass and plaster. (Source: NPFPA54/
ANSI Z223.1-1999.)
E c n o l s u e r
F u y l l e n c o l s e d b y c o m
m a e t i r l a o n a l l s d i
U n e n c o l s e , d t a e l a t s 1 s
c o m b u t s b i e l m a e t i r l a
m a i x m u m f o 3 s d i
N o n c o m b u t s b i e l m a
b u t s b i e l
e s
d i e o p e , n
o n a
e s
e t i r l a