Ultra Boiler Manual

Part number 550-100-440/0122
73
  
ADVANCED INSTALLATION
3” or 4” concentric (cont.)
b. e ue products will form a noticeable plume as they con-
dense in cold air. Avoid areas where the plume could obstruct
window views.
c. Prevailing winds could cause freezing of condensate and water/
ice buildup where ue products impinge on building surfaces
or plants.
d. Avoid possibility of accidental contact of ue products with
people or pets.
e. Do not locate the terminations where wind eddies could aect
performance or cause recirculation, such as inside building
corners, near adjacent buildings or surfaces, window wells,
stairwells, alcoves, courtyards or other recessed areas.
f. Do not terminate above any door or window or under a deck.
Condensate can freeze, causing ice formations.
g. Locate or guard vent to prevent condensate damage to exterior
nishes.
2. Maintain clearances as shown in Figure78, page 72, Fig-
ure79,page72, Figure80 and Figure81. Also maintain the fol-
lowing:
a. Vent must terminate:
• At least 6 feet from adjacent walls.
• No closer than 5 feet 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” above grade or snow line.
c. Do not terminate closer than 4 feet horizontally (above or be-
low) from any electric meter, gas meter, regulator, relief valve
or other equipment.
3. 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.
Multiple vent/air terminations
1. When terminating multiple Ultra boilers, terminate each vent/air
connection as described in this addendum.
All vent pipes and air inlets must terminate at the same
height to avoid possibility of severe personal injury, death
or substantial property damage.
2. Place wall penetrations to obtain minimum clearance as shown in
Figure81 for U. S. installations. For Canadian installations, provide
clearances required by CSA B149.1 or B149.2 Installation Code.
3. e air inlet of an Ultra boiler is part of a direct vent connection.
It is not classied as a forced air intake with regard to spacing from
adjacent boiler vents.
4. Combustion air (NOT vent piping) can be manifolded as shown
on page59.
Figure 80 Termination location — 3” or 4” concentric termination
— clearances to public walkway or forced air intake
Figure 81 Termination location — 3” or 4” concentric termination
— multiple boilers — clearance from vent of one to air
intake of the next