Installation Guide

Part number 550-100-066/0608
g a s -f i r e d w at e r b o i l e r — Boiler Manual
40
Sidewall vent/air termination: Separate pipes (continued)
Sidewall termination with separate pipes — 
clearances to openings
Sidewall termination with separate pipes — 
clearances to public walkway or forced air
intake
Multiple terminations — separate pipes — 
clearance from vent of one to air intake of the
next
You must consider the surroundings when terminating the vent 4.
and air:
Position the vent termination where vapors will not damage a.
nearby shrubs, plants or air conditioning equipment or be
objectionable.
The ue products will form a noticeable plume as they con-b.
dense in cold air. Avoid areas where the plume could obstruct
window views.
Prevailing winds could cause freezing of condensate and water/c.
ice buildup where ue products impinge on building surfaces
or plants.
Avoid possibility of accidental contact of ue products with d.
people or pets.
Do not locate the terminations where wind eddies could affect e.
performance or cause recirculation, such as inside building
corners, near adjacent buildings or surfaces, window wells,
stairwells, alcoves, courtyards or other recessed areas.
Do not terminate above any door or window or under a deck. f.
Condensate can freeze, causing ice formations.
Locate or guard vent to prevent condensate damage to exterior g.
finishes.
Maintain clearances as shown in the illustrations in this manual 5.
section. Also maintain the following:
Vent must terminate:a.
At least 6 feet from adjacent walls.•
No closer than 5 feet below roof overhang.•
At least 7 feet above any public walkway.•
At lease 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.
Do not terminate closer to 4 feet horizontally from any electric b.
meter, gas meter, regulator, relief valve or other equipment.
Never terminate above or below any of these within 4 feet
horizontally.
Locate terminations so they are not likely to be damaged by foreign 6.
objects, such as stones or balls, or subject to buildup of leaves or
sediment.
Do not connect any other appliance to the vent pipe or multiple 7.
boilers to a common vent pipe.
Completing the vent/air piping
Install vent/air penetrations as explained in the following pages 1.
before installing vent and air piping from the boiler to the termi-
nations. Insert piping from boiler air and vent connections, then
attach exterior termination piping.
Follow instructions beginning on 2. page 48 to complete piping from
boiler to termination.
Multiple vent/air terminations
When terminating multiple Ultra boilers, terminate each vent/air 1.
connection as described in this manual.
All vent pipes and air inlets must terminate at the same
height to avoid possibility of severe personal injury, death
or substantial property damage.