IBC Sl Series Installation & Operating Manual page 34

Description
A Clearance above grade,
veranda, porch, deck, or
balcony
B Clearance to window or
door that may be opened
C Clearance to permanently
closed window
D Vertical clearance to
ventilated soffit located
above the terminal within a
horizontal distance of 2ft
(61 cm) from the center line
of the terminal
E Clearance to unventilated
soffit
F Clearance to outside
corner
G Clearance to inside corner
H Clearance to each side of
center line extended above
meter/regulator assembly
I Clearance to service
regulator vent outlet
1
In accordance with the current CAN/CSA-B149 Installation Codes.
2
If locally adopted installation codes specify clearances different than those illustrated, then the most stringent shall apply.
3
In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
*
Clearances in accordance with local installation codes and the requirements of the gas supplier. The minimum distance from adjacent
public walkways, adjacent buildings, openable windows, and building openings shall not be less than those values specified in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, and/or the Natural Gas and Propane Installation Code, CSA 8149.1.
1 1 2 2
US Installations ,
12 in (30 cm)
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 12 in
(30 cm) for appliances >
10,000 Btuh (3 kW) and ≤
100,000 Btuh (30 kW), 36
in (91 cm) for appliances
>100,000 Btuh (30 kW)
*
*
*
*
*
3 ft (91 cm) within a height
15 ft above the meter/
regulator assembly
Above a regulator within 3
ft (91 cm) horizontally of the
vertical center line of the
regulator vent outlet to a
maximum vertical distance
of 15 ft (4.5 m)
30
Section: Installation
Canadian Installations
3 3
12 in (30 cm)
6 in (15 cm) for appliances
≤ 10,000 Btuh (3 kW), 9 in
(23 cm) for appliances >
10,000 Btuh (3 kW) and ≤
50,000 Btuh (15 kW), 12 in
(30 cm) for appliances >
50,000 Btuh (15 kW)
*
*
*
*
*
*
*
2
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