Rinnai M Series, Installation And Operation Manual

Page: 31 / 122

Rinnai M - Series Condensing Boiler Combi Manual 31
Canadian Installations
(CSA B149.1)
U.S. Installations
(ANSI Z223.1 /NFPA 54)
Ref Description Direct Vent (Indoor Unit) Direct Vent (Indoor Unit)
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) 12 in. (30 cm)
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) 12 in. (30 cm)
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] *
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.
The information below applies to Concentric and Twin Pipe.