Securing To The Wall; Installation - Noritz NR83-DVC Installation Manual

Clearance Requirements from Vent Terminations to Building Openings
* All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code,
ANSI Z223.1 and in Canada, in accordance with NSCNGPIC.
()= indicates clearances required in Canada
*Maintain clearances in accordance with local installation codes and the requirements of the gas supplier
***A vent shall not terminate directly above a sidewalk or paved driveway that is located between two
single family dwellings and serves both dwellings.
****Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor.
7.

Installation

Securing to the wall

8
Clearance
Above grade, veranda, porch, deck,
A=
or balcony
Window or door that may be opened
B=
Permanently closed window
C=
Vertical clearance to ventilated soffit
located above the terminal within a
D=
horizontal distance of 2' (0.6m) from
the center of the terminal
E= Unventilated soffit
Outside corner
F=
Inside corner
G=
Each side of center line extended
H=
above meter/regulator assembly
Service regulator vent outlet
I=
Nonmechanical air supply inlet or
J= combustion air inlet to any other
appliance
Mechanical air supply inlet
K=
Above paved sidewalk or paved
L=
driveway located on public property
Under veranda, porch, deck, or
M=
balcony
Vent Terminal
Air Supply Inlet
12" (300mm) [12" (300mm)]
12" (300mm) [36" (900mm)]
*
*
*
*
*
3' (0.9m) within a height 15' (4.5m)
above meter/regulator assembly
3' (0.9m)
12" (300mm) [36" (900mm)]
3' (0.9m) above if within 10' (3m) [6'(1.8m)]
[7' *** (2.1m ***)]
* [12" (300mm) - Canada Only****]
Area Where Terminal
is Not Permitted