35
8.2 - Venting
systems
WARNING!!! The vent installation
must be in accordance with Part
7, Venting of Equipment, of the
latest edition of the National Fuel
Gas Code, ANSI Z223.1/NFPA 54
or section 7, Venting Systems
and Air Supply for Appliances, of
the CAN/CSA B149.1, Natural Gas
and Propane Installation code or
applicable provisions of the local
building codes. Improper venting
can result in excessive levels of
carbon monoxide which can result
in severe personal injury or death!
Horizontal vent runs must be
sloped upwards not less than 1/4
in/ft (
21 mm/m)
, from the boiler to
the vent terminal.
The vent system shall be installed
so as to prevent the accumulation
of condensate. When horizontal
vent runs exceed 5 ft
(1.5m)
, they
must be supported at 3 ft
(0.98 m)
,
intervals with overhead hangers.
Horizontal vent systems shall
terminate at least 4 ft
(1.22 m)
below, 4 ft
(1.22 m)
horizontally
from any door, window or gravity
air inlet into any building. It must
not terminate less than 4 ft
(1.22
m)
horizontally from, and in no
case above or below, unless a 4
ft
(1.22 m)
, horizontal distance is
maintained, from electric meters,
gas meters, regulators and relief
equipment and not less than 7 ft
(2.3 m)
from any adjacent public
walkway. The bottom of the vent
terminal(s) shall be located at least
5 ft
(1.5 m)
above the air intake
terminal(s). Avoid terminal locations
likely to be affected by winds,
snowdrifts, people and pets.
Item
unique to CANADA: vent system
shall terminate at least 6 ft from
electrical and gas meters.
Due to the high effi ciency of the
boiler it may discharge what looks
like white smoke especially when
the outside air temperature is cold.
This is a simply water vapor, a
purely natural phenomenon and not
a reason for concern.
The minimum clearance
measurement between two vent
end terminations of this kind of
boilers shall be not less than 18”
(1 m)
.
WARNING!!! The exhaust vent
and the air inlet lines (also in the
coaxial version) must be supported
to prevent sagging. To do this, use
a suitable pipe clamp to support
the lines. Pipe clamps shall support
the line every 3 ft (1 m). Pipe clamp
shall be fi xed in correspondance
of a wall stud. Improper supporting
can result in excessive levels of
carbon monoxide which can result
in severe personal injury or death!
This Boiler requires a special vent
system, designed for pressurized
venting.
You must install air piping from
outside to the boiler air intake. The
resultant installation is Direct Vent
(sealed combustion).
The boiler is to be used for either
Direct Vent installation or for
installation using room combustion
air. When room air is considered see
Section 8.6.
Vent and air must terminate near one
another and may be vented vertically
through the roof or out of a side wall,
unless otherwise specifi ed. You may
use any of the vent/air piping methods
from Figure 22 thru Figure 27. Do
not attempt to install boiler using any
other means.
WARNING!!! DO NOT mix
components from different systems.
The vent system could fail, causing
leakage into the living space. Use
only approved materials listed on 8.1
and 8.2. Improper materials or mixing
materials can result in excessive
levels of carbon monoxide which
can cause several personal injury or
death!
Be sure to locate the boiler such that
the vent and air piping can be routed
through the building and properly
terminated. The vent/air piping lengths,
routing and termination method must
all comply with the methods and limits
given in Section 8.3.
8 - INSTALLATION - Vent & combustion air
Summary of Contents for Peerless Combi 160
Page 3: ...3 SAFETY INSTRUCTIONS...
Page 97: ...97 13 MAINTENANCE...
Page 105: ...105 NOTES...
Page 106: ...106 NOTES...
