Lochinvar Armor AWH0400N Installation & Operation Manual page 24

4
Sidewall direct venting
Figure 4-4A Direct Vent Terminal Clearances
Table 4B Direct Vent Terminal Clearances
Clearance above grade, veranda, porch,
A =
deck, or balcony
Clearance to window or door that may
B =
be opened
Clearance to permanently closed
C =
window
Vertical clearance to ventilated soffit
located above the terminal within a
D =
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
Clearance to each side of center line
H = extended above meter / regulator
assembly
Clearance to service regulator vent
I =
outlet
24
Canadian Installations¹
12 in (30 cm)
6 in (15 cm) for appliances < 10,000 Btuh
(3 kW), 12 in (30 cm) for appliances >
10,000 Btuh (3 kW) and < 100,000 Btuh
(30 kW), 36 in (91 cm) for appliances >
100,000 Btuh (30 kW)
*
*
*
*
*
*
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 (4.5 m)
Installation & Operation Manual
US Installations²
12 in (30 cm)
6 in (15 cm) for appliances < 10,000 Btuh
(3 kW), 9 in (23 cm) for appliances >
10,000 Btuh (3 kW) and < 50,000 Btuh (15
kW), 12 in (30 cm) for appliances > 50,000
Btuh (15 kW) and not exceeding > 150,000
Btuh (30 kW)
*
*
*
*
*
*
*