CSA 96MDT SERIES, Installation Instructions Manual

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57
Figure 21 shows minimum clearances that must be used for non-direct venting terminations.
NON-DIRECT VENT TERMINATION CLEARANCES
GENERAL VENTING REQUIREMENTS AND
GUIDELINES
FIGURE 21
VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS
K
D
E
L
B
C
F
G
A
B
J
A
M
I
H
IN S I DE COR N ER
DETA IL
VE N T TERM IN A L
A I R SUPP L Y INL ET
AREA W H ERE TERM IN A L
I S N OT PERM I TTED
Fi x ed
C l osed
O p e r ab l e
B
Fi x ed
C l osed
O p e r ab l e
B
B
A = C l ea r a n ce abo v e gr ade, v e r a n da, p o r ch, deck
o r ba l co ny
B = C l ea r a n ce to w i n do w o r doo r that m a y be o p e n ed
C = C l ea r a n ce to p e rm a n e n t ly c l osed w i n do w
D = Ve r tica l c l ea r a n ce to v e n ti l ated soffit l ocated abo v e the
te rm i n a l w ithi n a ho r i z o n ta l dista n ce of 2 feet (0 . 6 m )
f r o m the ce n te r l i n e of the te rm i n a l
E = C l ea r a n ce to unv e n ti l ated soffit
F = C l ea r a n ce to o u tside co rn e r
G = C l ea r a n ce to i n side co rn e r
H = C l ea r a n ce to each side of ce n te r l i n e e x te n ded abo v e
m ete r / r e gul ato r asse m b ly
I = C l ea r a n ce to se rv ice r e gul ato r v e n t o u t l et
J = &OHDUDQFHWRQRQíPHFKDQLFDODL r s upply i nl et to b u i l di ng
o r the co m b u stio n ai r i nl et to a ny othe r a ppl ia n ce
K = C l ea r a n ce to m echa n ica l ai r s upply i nl et
L = C l ea r a n ce abo v e p a v ed side w a l k o r p a v ed d r i v e w a y
l ocated o n pu b l ic pr o p e r t y
M = C l ea r a n ce un de r v e r a n da, p o r ch, deck o r ba l co ny
US In sta ll atio n s
1 Ca n adia n In sta ll atio n s
2
12 i n ches (305 mm ) o r 12 i n. 305 mm )
abo v e a v e r a g e s n o w acc umul atio n.
4 feet (1 . 2 m ) be l o w o r to side of
o p e n i ng; 1 foot (30c m ) abo v e
o p e n i ng
6 i n ches (15c m ) fo r a ppl ia n ces < 10,000 Bt u h (3k w ),
12 i n ches (30c m ) fo r a ppl ia n ces > 10,000 Bt u h (3k w ),
a n d < 100,000 Bt u h (30k w ),
36 i n ches ( . 9 m ) fo r a ppl ia n ces > 100,000 Bt u h (30k w )
* 12" (30c m )
* 3 ft . ( . 9 m ), 10 ft . (3 . 05 m ) pr efe rr ed
* 7 feet (2 . 1 m )
3 feet ( . 9 m ) w ithi n a hei g ht 15 feet (4 . 5 m ) abo v e the
m ete r / r e gul ato r asse m b ly
*3 feet ( . 9 m )
6 i n ches (15c m ) fo r a ppl ia n ces < 10,000Bt u h (3k w ),
12 i n ches (30c m ) fo r a ppl ia n ces > 10,000 Bt u h (3k w )
a n d < 100,000 Bt u h (30k w ),
36 i n ches ( . 9 m )fo r a ppl ia n ces > 100,000 Bt u h (30k w )
3 feet ( . 9 m ) abo v e if w ithi n 10 feet (3 m )
ho r i z o n ta lly
6 feet (1 . 8 m )
1
In acco r da n ce w ith the c urr e n t A N S I Z223 . 1/ N FPA 54 N at ur a l F u e l Gas Code
2
In acco r da n ce w ith the c urr e n t CSA B149 . 1, N at ur a l Gas a n d P r o p a n e In sta ll atio n Code
*Fo r c l ea r a n ces n ot s p ecified i n A N S I Z223 . 1/ N FPA 54 o r CSA B149 . 1, c l ea r a n ce
w i ll be i n acco r da n ce w ith l oca l i n sta ll atio n codes a n d the r e qu i r e m e n ts of the g as
s uppl ie r a n d these i n sta ll atio n i n st ru ctio n s . "
* 12" (30c m )
* E qu a l to o r gr eate r tha n soffit de p th * 3" (0 . 9 m )
* E qu a l to o r gr eate r tha n soffit de p th
* N o m i n i mum to o u tside co rn e r * N o m i n i mum to o u tside co rn e r
3 feet ( . 9 m ) w ithi n a hei g ht 15 feet (4 . 5 m )
abo v e the m ete r / r e gul ato r asse m b ly
3 feet ( . 9 m )*
* 2" (0 . 6 m )
* 3 ft . ( . 9 m ), 10 ft . (3 . 05 m ) pr efe rr ed
4 feet (1 . 2 m ) be l o w o r to side of
o p e n i ng; 1 foot (30c m ) abo v e
o p e n i ng
mu st co n fo rm to
CSA B149 . 1 - 10, Sect . 8 . 14 .
(30c m )
† A v e n t sha ll n ot te rm i n ate l ess tha n 7 ft . (2 . 1 m ) abo v e a p a v ed side w a l k o r p a v ed d r i v e w a y
that is l ocated o n pu b l ic pr o p e r t y.
‡ Pe rm itted o nly if v e r a n da, p o r ch, deck o r ba l co ny is f ull o p e n o n a m i n i mum of t w o sides
be n eath the f l oo r. We r ecco mm e n d a v oidi ng this l ocatio n if p ossib l e .
Ve
nting
ST-A1194-19 FIG A