ACV Prestige CPVC, Руководство пользователя

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Category IV Installation of Vent/Air Piping
c. Prevailing winds could cause freezing of flue
condensation and a buildup of water / ice on sur-
rounding plants or building surfaces.
d. Avoid locations where prevailing winds could
affect the performance of the boiler or cause
recirculation of the flue gases, such as inside
corners of buildings or near adjacent buildings
or vertical surfaces, window wells, stairwells,
alcoves, courtyards, or other recessed areas.
e. Do not terminate the vent above any doors or
windows: flue condensate could freeze causing
ice formations.
f. Locate the vent termination to prevent possible
condensate damage to exterior finishes.
g. Avoid locations of possible accidental contact of
flue vapors with persons or pets.
5. The vent termination must also maintain the follow-
ing clearances; as shown in Fig.24, page 27.
a. At least 3 feet [0.9 m] from adjacent walls
b. At least 3 feet [0.9 m] below roof overhangs
c. At least 7 feet [2.1 m] above any public walk-
ways
d. At least 3 feet [0.9 m] above any forced air
intake within 10 feet [3 m].
e. No closer than 4 feet [1.2 m] below or horizon-
tally from any door or window or gravity air inlet.
f. Must be at least 4 feet [1.2 m] from any electric
meters, gas meters-regulators, relief valves or
other equipment. Never terminate the vent
above or below any of these items within 4 feet
[1.2 m] horizontally.
g. A minimum 12” [30.5 cm] or a maximum 24” [61
cm] beyond the exterior wall.
6. The combustion air must terminate at the boiler with
a 90 º elbow.
7. Locate the vent termination in a matter to protect
from damage by foreign objects, such as stones or
balls or subject to buildup of leaves or sediment.
8. Do not connect any other appliance to the vent pipe
or multiple boilers to a common vent pipe.
Determine Termination Location
Locate the vent and combustion air termination using the
following guidelines:
1. The total length of the vent must not exceed the limits
given in Table 8 on page 8.
DO NOT include the 45º or 90º elbow or tee used to
terminate the vent exterior of the building when
determining the total length of pipe.
2. The combustion air piping must terminate at the boil-
er with a 90 º elbow.
3. The vent pipe can terminate:
-
Using a 90º elbow as shown in Fig. 29 page 30.
- Using a coupling as shown in Fig. 26 page 30.
- Using a tee as shown in Fig. 27 page 30 or Fig. 30
page 31 .
- Using a 45º elbow as shown in Fig. 28 page 30 or Fig.
31 page 31.
The vent termination must be installed 12” [30.5 cm] min-
imum above grade / highest anticipated snow level.
Do not extend the vent pipe outside the sidewall
beyond the dimensions shown in Figs. 26 through
31 pages 30 and 31. Extended exposure of the vent
pipe could cause condensate to freeze and block the
vent pipe.
4. The following should be considered when determin-
ing the location of the vent termination:
a. Locate the vent termination where flue vapors
will not damage surrounding shrubs, plants or
air conditioning equipment or be objectionable
to the homeowner.
b. The flue products will form a noticeable plume
as they condense in colder air. Avoid terminat-
ing the vent in areas where the plume could
obstruct window views.
WARNING
NOTICE