PB Heat Peerless Combi 160, Руководство пользователя

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8 - INSTALLATION - Vent & combustion air
8.12 - Vertical
termination - Two
pipes
WARNING!!! Follow
instructions below when determining
vent location to avoid possibility
of severe personal injury, death or
substantial property damage.
WARNING!!! Do not connect
any other appliance to the vent pipe
or multiple boilers to a common vent
pipe. Failure to comply could result
in severe personal injury, death, or
substantial property damage.
Installation must comply with local
requirements and with the National
Fuel Gas Code, ANSI Z223.1 for
U.S. installations or CSA B149.1 for
Canadian installations.
8.12.1 - Determine
location
Locate the vent/air terminations using
the following guidelines:
1. The total length of piping for vent
or air must not exceed the limits
given in the Section 8.3.
2. The vent must terminate at least
3 feet above the highest place in
which the vent penetrates the roof
and at least 2 feet above any part
of a building within 10 horizontal
feet.
3. The air piping must terminate
in a down-turned 180° return
pipe no further than 2 feet from
the center of the vent pipe. This
placement avoids recirculation of
fl ue products into the combustion
air stream.
4. The vent piping must terminate at
least 1 foot above the air intake.
The air inlet pipe and vent pipe
can be located in any desired
position on the roof, but must
always be no further than 2 feet
apart and with the vent termination
at least 1 foot above the air intake.
5. Locate terminations so they
are not likely to be damaged by
foreign objects, such as stones
or balls, or subject to buildup of
leaves or sediment.
8.12.2 - Prepare roof
penetrations
1. Air pipe penetration: cut a hole for
the air pipe. Size the air pipe hole
as close as desired to the air pipe
outside diameter.
2. Vent pipe penetration:
a. Cut a hole for the vent pipe.
For either combustible or
noncombustible construction,
size the vent pipe hole with
at least a 1/2 inch clearance
around the vent pipe outer
diameter: 4 inch hole for 3 inch
vent pipe
b. Insert a galvanized metal
thimble in the vent pipe hole.
3. Space the air and vent holes to
provide the minimum spacing
shown in Figure 37 and listed in
section 10.13.1.
4. Follow all local codes for isolation
of vent pipe when passing through
fl oors, ceilings, and roofs.
5. Provide fl ashing and sealing boots
sized for the vent pipe and air
pipe.
8.12.3 - Termination and
fi ttings
1. Prepare the vent termination and
the air termination elbow (Figure
37) by inserting bird screens.
2. The air piping must terminate in
a down-turned 180° return bend
as shown in Figure 37. Locate
the air inlet pipe no further than
2 feet from the center of the vent
pipe. This placement avoids
recirculation of fl ue products into
the combustion air stream.
3. Maintain the required dimensions
of the fi nished termination piping
as shown in Figure 37.
4. Do not extend exposed vent pipe
outside of building more than
shown in Figure 37. Condensate
could freeze and block vent pipe.
Figure 37 - Two pipes vertical terminations of air
and vent