RBI Infinite Energy2 IW1000, Installation And Operation Instructions Manual

Page: 76 / 156

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11 - INSTALLATION - CATEGORY IV: Vent and combustion air
11.12.4 - Multiple vent/air
terminations
1.- When terminating multiple
appliances, terminate each vent/air
connection as shown in Figures 11-
23 and 11-24;
WARNING!!!
Terminate all
vent pipes at the same height
and all air pipes at the same
height to avoid possibility
of severe personal injury,
death, or substantial property
damage.
2.- Place roof penetrations to obtain
minimum clearance of 12 inches
between edge of air intake elbow
and adjacent vent pipe of another
appliance for U.S. installations
(see Figure 11-23). For Canadian
installations, provide clearances
required by CSA B149.1 Installation
Code;
3.- The air inlet is part of a direct vent
connection. It is not classified as
a forced air intake with regard to
spacing from adjacent appliance
vents.
Figure 11-24 - Alternate vertical terminations
with multiple appliances
vertically from
vent outlet to
any air inlet
Vent
Vent
Air intake
Air intake
NOTICE! Keep the terminals at min. 12” from grade or
snow line. Provide vent and air intake with bird screen.
Figure 11-23 - Two pipes Multiple appliances vertical
terminations
vertically from
vent outlet to
any air inlet
from edge of
air intake pipe
to adjacent
vent pipe
from another
appliance
NOTICE! Keep the terminals at min. 12” from grade or
snow line. Provide vent and air intake with bird screen.
Vent
Vent
Air intake
Air intake