Rinnai HE Series How To Use Manual page 18

Other Than Direct Vent Terminal Clearances (Outdoor Units)
Clearance in
Ref. A also
applies to
anticipated
snow line
D
E
L
Ref
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
Vertical clearance to ventilated soffit, located above the terminal within a
D
horizontal distance of 2 feet (61 cm) from the center line of the terminal
E Clearance to unventilated soffit
F Clearance to outside corner
G Clearance to inside corner
Clearance to each side of center line extended above meter/regulator
H
assembly
I Clearance to service regulator vent outlet
Clearance to non-mechanical air supply inlet to building or the combustion
J
air inlet to any other appliance
K Clearance to a mechanical air supply inlet
Clearance above paved sidewalk or paved driveway located on public
L
property
M Clearance under veranda, porch, deck, or balcony
[1] A vent shall not terminate directly above a sidewalk or paved driveway
that is located between two single family dwellings and serves both
dwellings.
[2] Permitted only if veranda, porch, deck, or balcony is fully open on a
minimum of two sides beneath the floor.
8
B
F
Description
INSIDE
CORNER DETAIL
G
A
B
OPERABLE
B
C
FIXED
B
CLOSED
A
OPERABLE
B
Canadian Installations
(CSA B149.1)
12 inches (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)
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*
*
*
*
3 feet (91 cm) within a height 15 feet (4.5 m)
above the meter/regulator assembly
36 inches (91 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)
6 feet (1.83 m)
7 feet (2.13 m) 
12 inches (30 cm) 

For clearances not specified in ANSI Z223.1/NFPA 54, clearances are in
accordance with local installation codes and the requirements of the gas
supplier.
Clearance to opposite wall is 24 inches (60 cm).
KBD Series Manual
H
I
M
B
FIXED
CLOSED
J
X
AIR SUPPLY INLET
V
VENT TERMINAL
AREA WHERE TERMINAL
IS NOT PERMITTTED
(ANSI Z223.1 / NFPA 54)
4 ft (1.2 m) below or to side of opening;
1 ft (300 mm) above opening
4 ft (1.2 m) below or to side of opening;
1 ft (300 mm) above opening
3 feet (91 cm) above if within 10 feet (3
K
US Installations
12 inches (30 cm)
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*
*
*
*
*
*
m) horizontally
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