UTICA BOILERS OLSSV-050 Installation, Operation & Maintenance Manual page 28

FIGURE 6-10 Flue on Sidewall, Combustion Air on Roof
Combustion
FIGURE 6-11 Flue on Sidewall, Inside Combustion Air
Combustion
Air
NOTICE
Configurations of single pipe vent with flue on
sidewall, requires tee as vent terminal. See figures
6-10 and 6-11.
6 - COMBUSTION AIR AND VENT PIPING
Maintain 12"(305mm) US
(18"(457mm) Canada)
minimum clearance
above highest anticipated
Air
snow level 24" (610mm)
maximum above roof
Vent
12" (305mm)
Minimum anticipated
snow line
Ground Level
Vent
12" (305mm)
Minimum
anticipated snow
line
Ground Level
FIGURE 6-12 Two Pipe Side Wall with 45° Vent
Combustion Air, 90°
Elbow Downward
See Snow & Ice
Page 26
FIGURE 6-13 Side Wall Concentric Terminal w/Accelerator
1" (25.4mm) Max.
Separation
Combustion
Air
FIGURE 6-14 Side Wall Venting Terminal w/T-Terminal
12" (305mm) Min.
Separation of Combustion Air and Vent
shall be maintained.
No Maximum separation is required
when using T-Terminal for vent.
See Snow & Ice
If separation in Fig. 6-2 or Fig 6-12 is not large
enough to prevent cross flow contamination
between flue gas and fresh air use T-Terminal as
shown in Fig. 6-14. Use of T-Teminal for vent as
shown in Fig. 6-14 does not have a max. separation
requirement between flue gas and fresh air.
28
12" (205mm) Min.
24" (610mm) Max.
Separation
12" (205mm) Min.
24" (610mm) Max.
Opening
Separation
24" Min.
Vent w/
Accelerator
See Snow & Ice
Vent w/T-
Termina
Page 26
NOTICE
P/N# 2400010616, Rev. F [10/26/2015]
Vent
45° Elbow
Upward
Separation
Page 26
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