ACV Prestige CPVC, Руководство пользователя

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4. The following should be considered when deter-
mining the location of the vent and combustion air
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 of
water vapor as they condense in colder air.
Avoid terminating the vent in areas where the
plume could obstruct window views.
c. Prevailing winds could cause freezing of flue
gas condensation and a buildup of water / ice on
surrounding plants, building surfaces or com-
bustion air inlet.
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, near adjacent buildings,
vertical surfaces, window wells, stairwells,
alcoves, courtyards, or other recessed areas.
e. Do not terminate the vent above doors or win-
dows: 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 people or pets.
5. The vent termination must also maintain the follow-
ing clearances; as shown in Fig.3, page 13.
a. At least 3 feet [0.9 m] from adjacent walls
b. At least 3 feet [0.9 m] below roof over hangs
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] (does not apply to the
combustion air inlet of a direct vent appliance).
e. No closer than 12” [30.5 cm] 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.
6. The edge of the combustion air termination coupling
must extend to 1” [2.5 cm] beyond the exterior wall,
as shown in Fig. 21 page 23.
7. Locate the vent termination and combustion air inlet in
a manner to protect from damage by foreign objects,
such as stones, balls, or buildup of leaves or sediment.
8. Do not connect any other appliance to the vent pipe
or multiple boilers to a common vent pipe.
Direct Vent - Vent Installation - Through the Roof
1. Vent pipe penetration through combustible or non-
combustible wall material should maintain a mini-
mum 1/4” [6 mm] clearance for 3” or 4” PVC/CPVC
vents or 1” [2.5 cm] for 2” PVC/CPVC vents. The
diameter of the penetration hole should be 4” [10.2
cm] minimum for 2” and 3” pipe or 5” [12.7 cm] min-
imum for 4” pipe. When using Polypropylene or
Stainless Steel vent refer to the vent manufacture’s
installation instructions, supplied with the vent for
clearances.
2. The installer must use a galvanized metal thimble for
the vent pipe penetration.
3. The vent must terminate 12” [30.5 cm] (18” [45.7 cm]
Canada) above the highest anticipated snow level.
4. The installer must comply with all local codes for iso-
lating the vent pipe as it passes through floors, ceil-
ings and roofs.
5. The installer should provide adequate flashing and
sealing boots sized for the vent pipe.
Direct Vent - Combustion Air Installation - Sidewall
1. Combustion air pipe penetration can maintain zero
clearance. The diameter of the penetration hole
should be 2 3/8” [6 cm] minimum for 2” pipe or 3 1/2”
[8.9 cm] minimum for 3” pipe or 4 1/2” [11.4 cm] min-
imum for 4” pipe.
2. The combustion air termination must be installed 12”
[30.5 cm] minimum above grade / highest anticipat-
ed snow level and as shown in Figs. 8 or 10 or 13
pages 17 and 18.
3. The installer must comply with all local codes for iso-
lating the combustion air pipe as it passes through
floors and walls.
4. The installer should seal all exterior openings
around penetration with an exterior silicon caulk.
Direct Vent Installation of Vent/Air Piping