Install Instructions
DIRECT VENT — Sidewall concentric
)NSTRUCTIONS BELOW
are for the WM 3” and 4” PVC
Concentric Kit. If using Simpson-Duravent or Centrotherm
Concentric kit, please refer to the manufacturer’s installation
instructions.
!LLOWABLEVENTAIRPIPEMATERIALSLENGTHS
1. The concentric termination kit must be purchased sepa-
rately.
Use only the vent materials and kits listed in Fig-
ure 21, page 19. Provide pipe adapters if specified.
2. Locate the termination 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 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, com-
ply with any additional requirements in the
vent system manufacturer’s instructions.
Provide a 4” PVC transition at the boiler
vent connection. 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 sup-
pliers transitions (EVG 220 only).
$ETERMINETERMINATIONLOCATION
1. Wall penetration thickness between 0” to 24”.
2. The concentric termination kit must be installed as shown
in Figure 33, page 28.
3. The termination must comply with clearances and limita-
tions 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.
-ULTIPLEVENTAIRTERMINATIONS
1. When terminating multiple Evergreen
TM
boilers, install each
concentric termination as described in this manual.
All vent pipes and air inlets must terminate at
the same height to avoid possibility of severe per-
sonal injury, death or substantial property damage.
2. Place wall penetrations to obtain minimum clearance as
shown in Figure 33, page 28 for U. S. installations. 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 Evergreen
TM
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 ).34!,,!4)/.3%15%.#% — Concentric
horizontal
3TEP Read and follow all instructions in this manual. $/./4
PROCEEDWITH VENTAIR INSTALLATION UNTIL YOUHAVE
READPAGETHROUGHPAGE
See
notices at left.
3TEP Install the boiler in a location that allows proper routing of all
vent and air piping to the selected sidewall location.
3TEP Make sure the selected sidewall termination location complies
with Figure 22, page 21. (Multiple boiler concentric termina-
tions must also comply with Figure 32, page 28.)
3TEP Use only the vent materials listed in Figure 21, page 19. Provide
pipe adapters where required.
3TEP Vent piping and air piping lengths must not exceed the values
shown in Figure 20, page 18.
3TEP Ensure proper clearance above grade or snowline. Keep vents/
air intake area clear of accumulating snow.
3TEP The concentric termination must be assembled and installed
before piping from the boiler to the termination.
3TEP Prepare the sidewall penetration — assemble the concentric
termination kit and secure the cover plates as instructed in
this section. Provide the supports indicated and mount the
termination assembly. See “Install termination — concentric
pipes” on page 28.
See notices at left.
3TEP Install vent and air piping between the boiler and the concen-
tric vent/air termination. Slope horizontal piping downward
toward the boiler at least 1/4 inch per foot. See page 36 for
general guidelines.
3TEP Install pipe supports every 5 feet on both the horizontal and
vertical runs.
See notices at left.
3TEP Install a hanger support within 6 inches of any upturn in the
piping.
See notices at left.
53%37%%0%,"/73&/2!,,6%.4!.$
!)20)0).' — DO NOT use short radius elbows
for vent or air piping. Boiler performance could be
affected.
Part number 550-100-131/0715
– 27 –
™
GAS-FIRED WATER BOILER — Boiler Manual