Enting C Learances - Navien CR-180 Installation Manual

I
Venting Clearances:
All clearance requirements are in accordance with ANZI Z2 1 . 1 0.3 and the
National Fuel Gas Code, ANSI Z223 . 1 / N FPA 54 and CGA 8 1 49. 1
National Gas and Propane I nstallation Code.
ANSI Z223. 1 / N FPA 54 and CSA B 1 49.1 National Gas and Propane Installation Code.
Clearance To:
A Above grade, veranda, porch, deck or balcony
B
Window or door that may be opened
C Permanently closed window
Vertical clearance to ventilated soffit located
D above the terminal within a horizontal distance
of 2 feet from the center of the terminal
E Unventilated soffit
F Outside corner
Inside corner
G
Each side of center line extended above
H
meter/regulator assembly
I Service regulator vent outlet
Non-mechanical air supply inlet or combustion
J
air inlet to any other aooliance
K Mechanical air supply inlet
Above paved sidewalk or paved driveway
L
M
located on public property
Under veranda, porch, deck, or balcony
Vent Terminal
(/)
Air Supply Inlet
US Direct Vent Canada Direct Vent
Indoor Installation
1 '
1 '
*
*
*
*
*
*
*
1 '
3' above if within 1 O'
horizontally
*
*
Indoor Installation
1 '
3'
*
*
*
*
*
3' within a height
1 5'above
meter/regulator
assembly
3'
3'
6'
7'
1 '