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DIRECT VENT — 6ERTICALWITHSEPARATEPIPES
!LLOWABLEVENTAIRPIPEMATERIALS
LENGTHS
Use only the vent materials and kits listed
in Figure 20, page 20. Provide pipe adapt-
ers if specified.
1. Locate the terminations such that the total air pip-
ing and vent piping from the boiler to the termina-
tion will not exceed the maximum length given in
Figure 19, page 19.
For polypropylene applications, comply
with any additional requirements in the
vent system manufacturer’s instructions.
Provide 3” PVC transition pieces at the
boiler vent and air connections. Install a
locking collar at every joint.
For AL29-4C vent pipe applications, com-
ply with any additional requirements in
the vent system manufacturer’s instruc-
tions. Provide a 3” PVC transition piece
at the boiler vent connection. The air
piping must be PVC or CPVC. Provide a
3” PVC transition piece at the boiler air
connection if using 2” air piping.
$ETERMINETERMINATIONLOCATION
1. The air and vent terminations must be installed as
shown in Figure 33.
2. The terminations must comply with clearances and
limitations shown in Figure 21, page 22.
3. Locate the 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.
-ULTIPLEVENTAIRTERMINATIONS
1. When terminating multiple ECO boilers, termi-
nate each vent/air connection as described in this
manual.
Terminate all vent pipes at the same
height and all air pipes at the same height
to avoid possibility of severe personal
injury, death or substantial property
damage.
2. Place roof penetrations to obtain minimum clear-
ance of 12 inches between edge of air intake elbow
and adjacent vent pipe of another boiler for U. S.
installations (see Figure 34, page 31). For Canadian
installations, provide clearances required by CSA
B149.1 or B149.2 Installation Code and a ULC S636
compliant vent kit.
3. The air inlet of a ECO boiler is part of a direct vent
connection. It is not classified as a forced air intake
with regard to spacing from adjacent boiler vents.
&IGURE Separate pipes vertical termination
4ERMINATEVENTANDAIRPIPESSUCHTHAT
A !)2).4!+%IS AT LEAST 12 inches below vent outlet
B !)2).4!+%IS NO FURTHER than 12 inches away center to center
C !)2).4!+%IS AT LEAST 12 inches above roof or snow line
D 6ENTANDAIRTERMINATIONSARElTTEDWITHBIRDSCREENS
3TEP Read and follow all instructions in this manual. $/./4PROCEED
WITH VENTAIR INSTALLATIONUNTIL YOUHAVEREAD PAGE
THROUGHPAGE.
See notices at left.
3TEP Install the boiler in a location that allows proper routing of all vent
and air piping to the selected sidewall location.
3TEP Make sure the selected vertical termination location complies with
Figure 21, page 22. (Multiple boiler terminations must also comply
with Figure 34, page 31.)
3TEP Use only the vent materials listed in Figure 20, page 20. Provide pipe
adapters where required. Vent piping and air piping lengths must not
exceed the values shown in Figure 19, page 19.
3TEP Prepare the vertical penetrations and secure penetration components
as instructed in this section. See “Prepare roof penetrations” on page 31
and “Termination and fittings” on page 31.
3TEP The air piping must terminate in a 180-degree return bend or down-
TURNEDELBOW as shown above. The vent piping must terminate in a
COUPLINGPOINTEDUPWARD as shown above.
3TEP Install vent and air piping between the boiler and the vertical termina-
tions. Slope horizontal piping downward toward the boiler at least 1/4
inch per foot. Install pipe supports every 5 feet on both the horizontal
and vertical runs. Install a hanger support within 6 inches of any upturn
in the piping. See page 35 for general guidelines. Also comply with vent
pipe manufacturer’s instructions.
See notices at left.
3TEP Insert the vent and air piping through the vertical penetrations and
secure the termination fittings.
3TEP Maintain clearances shown above. Vent and air terminations must be
fitted with a bird screen as shown.
53% 37%%0 %,"/73 &/2 !,,6%.4 !.$ !)2
0)0).' — DO NOT use short radius elbows for vent or
air piping. Boiler performance could be affected.
Part number 550-142-122/0513
30
TM
GAS-FIRED WATER BOILER — Boiler Manual
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