46
8 - INSTALLATION - Vent & combustion air
3. The air piping must terminate in
a down-turned elbow as shown
in Figures 31 and 32. This
arrangement avoids recirculation
of fl ue products into the
combustion air stream.
4. The vent piping must terminate in
an elbow pointed outward or away
from the air inlet, as shown in
Figures 31 and 32.
WARNING!!! Do not exceed
the maximum lengths of the outside
vent piping shown in Figures 31 and
32. Excessive length exposed to
the outside could cause freezing of
condensate in the vent pipe, resulting
in potential boiler shutdown.
5. Maintain clearances as shown in
Figures 31 and 32. Also maintain
the following:
a. Vent must terminate:
• At least 6 feet from adjacent
walls.
• No closer than 12 inches
below roof overhang.
• At least 7 feet above any
public walkway.
• At least 3 feet above any
forced air intake within 10 feet.
• No closer than 12 inches
below or horizontally from any
door or window or any other
gravity air inlet.
b. Air inlet must terminate at least
12 inches above grade or snow
line; at least 12 inches below
the vent termination;
c. Do not terminate closer than
6 feet horizontally from any
electric meter, gas meter,
regulator, relief valve, or other
equipment. Never terminate
above or below any of these
within 6 feet horizontally.
6. 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.
Figure 31 - Two pipes sidewall termination of air and vent
Figure 32 - Two pipes sidewall termination of air and vent
(if space permits)
Summary of Contents for Peerless Combi 160
Page 3: ...3 SAFETY INSTRUCTIONS...
Page 97: ...97 13 MAINTENANCE...
Page 105: ...105 NOTES...
Page 106: ...106 NOTES...
