Laars pennant PNCH Installation And Operation Instructions Manual page 10

Page 10
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
D= Vertical clearance to ventilated soffit located
above the terminal within a horizontal
distance of 2 feet (61cm) 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
J= Clearance to non mechanical air supply
inlet to building or the combustion air inlet
to any other appliance
K= Clearance to a mechanical air supply inlet
L= Clearance above paved sidewalk or paved
driveway located on public property
M= Clearance under veranda, porch, deck,
or balcony
Notes:
1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
2. In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
4. For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of
the gas supplier.
5. For clearances not specified in CSA B149.1, clearance is in accordance with local installation codes and the requirements of the gas
supplier.
Figure 3. Vent Terminal Clearances.
U.S. Installations (see note 1)
12 inches (30 cm)
Direct Vent Only: 12 inches (30 cm)
Other Than Direct Vent: 4 feet (1.2 m) below or
to side of opening; 1 foot (30 cm) above opening
See note 4
See note 4
See note 4
See note 4
See note 4
See note 4
See note 4
Direct Vent Only: 12 inches (30 cm)
Other Than Direct Vent: 4 feet (1.2 m) below or
to side of opening; 1 foot (30 cm) above opening
3 feet (91 cm) above if within 10 feet (3 m)
horizontally
Vent termination not allowed in this location
See note 4
LAARS Heating Systems
Canadian Installations (see note 2)
12 inches (30 cm)
36 inches (91 cm)
See note 5
See note 5
See note 5
See note 5
See note 5
3 feet (91 cm) within a height 15 feet
above the meter/regulator assembly
3 feet (91 cm)
36 inches (91 cm)
6 feet (1.83 m)
Vent termination not allowed in this
location
12 inches (30 cm) (see note 3)