ATI-C Installation Manual

16 Page
-Vent terminaon clearances-
Canada U.S.A
Direct-vent Direct- vent
A
Clearance above grade, veranda, porch, deck, or bal-
cony
1 foot (30 cm) 1 foot (30 cm)
B Clearance to window or door that may be opened 3 feet (91 cm) 1 foot (30 cm)
C Clearance to permanently closed window * *
D
Vertical clearance to ventilated soffit located above
the vent terminator within a horizontal distance of 2
feet (61cm) from the center line of the terminator
* *
E Clearance to unventilated soffit * *
F Clearance to outside corner * *
G Clearance to inside corner 2 feet (61 cm) 2 feet (61 cm)
H
Clearance to each side of center line extended above
meter/regulator assembly
3 feet (91 cm) *
I Clearance to service regulator vent outlet 3 feet (91 cm) *
J
Clearance to non-mechanical air supply inlet to build-
ing or the combustion air inlet to any other applica-
tion
3 feet (91 cm) 1 foot (30 cm)
K Clearance to mechanical air supply inlet. 6 feet (1.83 m) 3 feet (91 cm)
L
Clearance above paved sidewalk or paved driveway
located on public property
7 feet (2.13 m) *
M Clearance under veranda, porch deck, or balcony 1 foot (30 cm) *
*ForclearancesnotspecifiedinANSIZ223.1/NFPA54orCAN/CSA-B149.1,pleaseuseclearancesinaccordance
with local installation codes and the requirements of the gas supplier.
INSIDE CORNER DETAIL
V
Gas meter / regulator
V
V
V
V
V
V
V
V
V
X
X
X
Vent terminal
Air supply inlet
Area where is not permitted
G
A
E
D
B
L
C
F
B
B
B
B
A
J
OPERABLE
FIXED
CLOSED
B
H
M
K
OPERABLE
FIXED
CLOSED
I
Installaon
Installaon Manual