GSW 6G40NAV - VENTING; TERMINATION CLEARANCES (SIDEWALL)

24 www. gsw-wh .com 328765-000
TERMINATION CLEARANCES (SIDEWALL)
Figure 19
Vent terminal clearances for “Power Direct Vent”
installations.
A Clearance above grade,
veranda, porch, deck, or
balcony
30cm (12”) I Clearance to service
regulator
91cm (3’)
B Clearance to window or
door that may be opened
15cm (6’) for appliances ≤ 10,000
Btuh (3 kW),
30cm (12’) for appliances > 10,000
Btuh (3 kW) and ≤ 100,000 Btuh
(30 kW), 91cm (36’) for appliances
>100,000 Btuh (30 kW)
J Clearance to
nonmechanical air supply
inlet to building or the
combustion air inlet to any
other appliance
15cm (6’) for appliances ≤ 10,000
Btuh (3 kW), 30cm (12’) for
appliances > 10,000 Btuh (3 kW)
and ≤ 100,000 Btuh (30 kW), 91cm
(36”) for appliances >100,000 Btuh
(30 kW)
C Clearance to permanently
closed window
* K Clearance to a mechanical
air supply inlet
1.83m (6’)
D Vertical clearance to
ventilated soffi t located
above the terminal within a
horizontal distance of 61cm
(2’) from the center line of
the terminal
* L Clearance above paved
sidewalk or paved driveway
located on public property
2.13m (7’) †
E Clearance to unventilated
soffi t
* M Clearance under veranda,
porch deck, or balcony
30cm (12’) ‡
F Clearance to outside corner * † A vent shall not terminate where it may cause hazardous frost or
ice accumulations on adjacent property surfaces.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a
minimum of two sides beneath the fl oor.
* “Clearance in accordance with local installation codes and the
requirements of the gas supplier.”
G Clearance to inside corner *
H Clearance to each side of
center line extended above
regulator
91cm (3’) within a height
15’ * above the regulator
Vent terminal
Air supply inlet
Area where terminal is not permitted.
Gas regulator
V
X
B
C
V
V
V
B
B
B
A
V
J
B
V
I
M
V
X
K
F
V
G
FIXED
CLOSED
FIXED
CLOSED
OPERABLE
OPERABLE
INSIDE CORNER
DETAIL
D
V
E
V
B
L
X
H