24
Rinnai Commercial Hybrid System Installation and Operation Manual
Canadian Installations
(CSA B149.1)
U.S. Installations
(ANSI Z223.1 /NFPA 54)
Ref
Description
Other than direct vent
(Outdoor unit and/or Room Air)
Other than direct vent
(Outdoor unit and/or Room Air)
A
Clearance above grade, veranda, porch, deck, or balcony
12 in. (30 cm)
12 in. (30 cm)
B
Clearance to window or door that may be opened
36 in. (91 cm)
4 ft (1.2 m) below or to side of opening;
1 ft (300 mm) above opening
C
Clearance to permanently closed window
*
*
D
Vertical clearance to ventilated soffit, located above the
terminal within a horizontal distance of 2 ft (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
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 m)
*
J
Clearance to non
-
mechanical air supply inlet to building or
the combustion air inlet to any other appliance
36 in. (91 cm)
4 ft (1.2 m) below or to side of opening;
1 ft (300 mm) above opening
K
Clearance to a mechanical air supply inlet
6 ft (1.83 m)
3 ft (91 cm) above if within 10 ft
(3 m) horizontally
L
Clearance above paved sidewalk or paved driveway located
on public property
7 ft (2.13 m) [1]
*
M
Clearance under veranda, porch, deck, or balcony
12 in. (30 cm) [2]
*
Room Air Termination Clearances
Non
-
Direct Vent
(Room Air)
2
AIR SUPPLY INLET
VENT TERMINAL
AREA WHERE TERMINAL
IS NOT PERMITTTED
X
V
SNOW
TERMINATION
Clearance in
Ref. A also
applies to
anticipated
snow line
Clearance to opposite wall is 24 in. (60 cm).
[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 mini-
mum of two sides beneath the floor.
Clearances are in accordance with local installation codes and the
requirements of the gas supplier.
(Dégagement conforme aux codes
d
’
installation locaux et aux exigences du foumisseur de gaz.
)
