34
TERMINATION CLEARANCES FOR SIDEWALL INSTALLATIONS
H
D
E
L
B
V
V
V
V
B
F
C
B
B
B
V
V
V
V
V
X
X
A
J
M
Operable
Fixed
closed
Fixed
closed
Operable
B
Inside corner
detail
G
A
K
V
X
= Vent terminal
= Air supply inlet
= Area where the terminal
ŝƐŶŽƚƉĞƌŵŝƩĞĚ
Regulator/Gas meter
vent outlet
I
Figure 35. Vent Termination Clearances
Table 18. Vent Termination Clearances for Direct Vent and Other Vent Systems
Canada Installations
1
US Installations
2
Direct Vent/Other Than
Direct Vent
Direct vent
Other Than
Direct Vent
A
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IWFP
B
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IWFP
1 ft
FP
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C
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0
0
0
D
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E
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IWFP
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IWFP
F
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IWFP
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IWFP
G
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IWFP
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H
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IWFP
*
*
I
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*
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J
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L
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-
ZD\ORFDWHGRQSXEOLFSURSHUW\
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M
&OHDUDQFHXQGHUYHUDQGDSRUFKGHFNRUEDOFRQ\
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$YHQWVKDOOQRWWHUPLQDWHGLUHFWO\DERYHDVLGHZDONRUSDYHGGULYHZD\WKDWLVORFDWHGEHWZHHQWZRVLQJOHIDPLO\GZHOOLQJVDQGVHUYHVERWKGZHOOLQJV
3HUPLWWHGRQO\LIYHUDQGDSRUFKGHFNRUEDOFRQ\LVIXOO\RSHQRQDPLQLPXPRIWZRVLGHVEHQHDWKWKHÀRRU
7KHYHQWIRUFRQGHQVLQJZDWHUKHDWHUVVKDOOQRWWHUPLQDWH
2YHUSXEOLFZDONZD\VRU
1HDUVRI¿WYHQWVRUFUDZOVSDFHYHQWVRURWKHUDUHDVZKHUHFRQGHQVDWHRUYDSRUFRXOGFUHDWHDQXLVDQFHRUKD]DUGRUFDXVHSURSHUW\GDPDJHRU
:KHUHFRQGHQVDWHYDSRUFRXOGFDXVHGDPDJHRUFRXOGEHGHWULPHQWDOWRWKHRSHUDWLRQRIUHJXODWRUVUHOLHIYDOYHVRURWKHUHTXLSPHQW
1RWHV
,QDFFRUGDQFHZLWKWKHFXUUHQW
CSA B149.1, Natural Gas and Propane Installation Code
,QDFFRUGDQFHZLWKWKHFXUUHQW
ANSI Z223.1/NFPA 54, National Fuel Gas Code
Содержание ATX-199
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