18
IV. Venting
A. General Guidelines (continued)
b. Maintain correct clearance and orientation
between vent and combustion air terminals.
i.
Space centerlines of vent and combustion
air terminals minimum 12 in. (300 mm)
apart. More than 12 in. (300 mm) spacing is
recommended.
ii.
If possible, locate vent and combustion
air terminals on the same wall to prevent
nuisance shutdowns. If not, boiler may
be installed with roof vent terminal and
sidewall combustion air terminal.
iii.
When installed on the same wall, locate
vent terminal at same height or higher than
combustion air terminal.
iv.
When using tee terminals, do not locate vent
terminal directly above air intake as dripping
condensate may freeze on and block intake.
c. Locate bottom of vent and combustion air
terminals at least 12 in. (300 mm) [18 in.
(460 mm) in Canada] above the normal snow line
and at least 12 in. (300 mm) above grade level.
d. Locate vent and combustion air terminals at
least 12 in. (300 mm) from any door, window, or
gravity inlet into the building.
e. Do not install vent terminal directly above
windows or doors.
f. Locate bottom of vent terminal at least 3 ft. (900
mm) above any forced air inlet located within 10
ft. (3.0 m).
g. If window and/or air inlet is within 4 ft. (1.2 m)
of an inside corner, maintain at least 6 ft. (1.8 m)
spacing between terminal and adjoining wall of
inside corner.
h. Locate bottom of vent terminal at least 7 ft.
(2.1 m) above a public walkway.
i. Maintain minimum clearance of at least 4 ft.
(1.2 m) [3 ft. (900 mm)in Canada] horizontally
between vent terminal and gas meters, electric
meters, regulators, and relief equipment. Do
not install vent terminal above or below this
equipment.
j. Do not locate the vent terminal under decks or
similar structures.
k. Top of terminal must be at least 24” below
ventilated
eves, soffits, and other overhangs. In
no case may the overhang exceed 48”. Where
permitted by the authority having jurisdiction
and local experience, the terminal may be located
closer to unventilated
soffits. The minimum
vertical separation depends upon the depth of the
soffit. See Figure 4 for details.
l. Maintain minimum 12 in. (300 mm) horizontal
spacing between vent terminal and a building
corner.
Figure 6A: Direct Vent - Optional Vent Sidewall
Snorkel Termination
Figure 6B: Direct Vent - Optional Vent and
Combustion Air Sidewall Snorkel Terminations
Содержание Phantom-X PHNTM210
Страница 7: ...7 Figure 1B Model PHNTM285 I Product Description Specifications and Dimensional Data continued...
Страница 52: ...52 VIII Electrical continued...
Страница 53: ...53 VIII Electrical continued Figure 26 Wiring Connections Diagram...
Страница 54: ...54 VIII Electrical continued Figure 27 Ladder Diagram...
Страница 59: ...59 Figure 29B Boiler to Boiler Communication with Crown Zone Panel PN 3501505 VIII Electrical continued...
Страница 109: ...109 XIII Repair Parts 1L 1K 1J 1E 1C 1D 1B 1L 1J 1A 1M 1F 1C 1D 1B 1L 1J 1A 1M 1F 1K 1G 1G 1K 1H 1G...
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