Install Instructions
DIRECT VENT — Vertical concentric
!LLOWABLEVENTAIRPIPEMATERIALSLENGTHS
1. The concentric termination kit must be purchased
separately.
Use only the vent materials and kits listed in
Figure 21, page 19. Provide pipe adapters if
specified.
2. Locate the termination such that the total air piping and
vent piping from the boiler to the termination will not
exceed the maximum length given in Figure 20, page 18.
3. This termination requires a 45-degree elbow that is not
supplied with the termination kit. The maximum vent/
air pipe lengths include allowance for this elbow.
For polypropylene applications, comply with
any additional requirements in the vent system
manufacturer’s instructions. Provide 4” PVC-
to-PP transition pieces at the boiler vent and
air connections. PP adapter must have smooth,
straight section of pipe to insert in to the boiler
vent and air connections and must fit and seal
tightly. PP adapters with their own seal which
would interfere with the internal seal of the
boiler vent or air connections must not be
used. Refer to page 115 for a list of compliant
adapters. Install a locking collar at every joint.
For AL29-4C vent pipe applications, comply
with any additional requirements in the vent
system manufacturer’s instructions. Provide
a 4” PVC transition at the boiler vent connec-
tion. Air pipe must be PVC or CPVC. Provide
transition pieces to PVC at the vent and air
pipe termination connections.
4. For 4” to 3” transitions, must use appropriate vent
material. For polypropylene or stainless steel must use
approved suppliers transitions (EVG 220 only).
$ETERMINETERMINATIONLOCATION
Locate the concentric vent/air termination using the fol-
lowing guidelines:
1. Wall penetration thickness between 0” to 24”.
2. The concentric vent/air assembly must terminate as
shown in these instructions.
3. The termination must comply with the clearances and
limitations shown in Figure 22, page 21.
4. Locate the termination so it is not likely to be damaged
by foreign objects, such as stones or balls, or subject to
buildup of leaves or sediment.
5. For Canadian installations, follow requirements of CSA
B149.1 or B149.2 Installation Code and a ULC S636
compliant vent kit.
-ULTIPLEVENTAIRTERMINATIONS
1. When terminating multiple Evergreen boilers, install the
concentric vent/air termination assemblies as described
in this manual.
All vent outlets must terminate at the same
height to avoid possibility of severe personal
injury, death or substantial property damage.
&IGURE ).34!,,!4)/.3%15%.#% — Concentric vertical
3TEP Read and follow all instructions in this manual. $/ ./4
PROCEEDWITHVENTAIRINSTALLATIONUNTILYOUHAVEREAD
PAGETHROUGHPAGE
See notices
at left.
3TEP Install the boiler in a location that allows proper routing of all
vent and air piping to the selected location.
3TEP Make sure the selected vertical termination location complies
with Figure 22, page 21. (Multiple boiler concentric terminations
must also comply with Figure 37, page 32.)
3TEP Use only the vent materials listed in Figure 21, page 19. Provide
pipe adapters where required.
3TEP Vent piping and air piping lengths must not exceed the values
shown in Figure 20, page 18.
3TEP The concentric termination must be assembled and installed
before piping from the boiler to the termination.
3TEP Prepare the vertical penetration(s) — assemble the concen-
tric termination kit and secure the penetration components
as instructed in this section. Provide the supports indicated
and mount the termination assembly. See “Prepare roof pen-
etrations” and “Mount concentric termination” on page 32.
See notices at left.
3TEP Install vent and air piping between the boiler and the concentric
vent/air termination. Slope horizontal piping downward toward
the boiler at least 1/4 inch per foot. See page 36 for general
guidelines.
3TEP Install pipe supports every 5 feet on both the horizontal and
vertical runs.
See notices at left.
3TEP Install a hanger support within 6 inches of any upturn in the
piping.
See notices at left.
53%37%%0%,"/73&/2!,,6%.4!.$
!)2 0)0).' — DO NOT use short radius elbows
for vent or air piping. Boiler performance could be
affected.
Part number 550-100-131/0715
– 31 –
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GAS-FIRED WATER BOILER — Boiler Manual