Weil-McLain Evergreen EVG 220 Manual page 21

®
gas
Venting & air — general
Figure 24 Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet
local codes (see Figure 111, page 117 for part/kit numbers)
Item
Plastic piping materials
Vent or air pipe
&
fittings
PVC & ABS pipe
cement & primer
Simpson-Duravent — Obtain all materials from M&G
Simpson-Duravent
Polypropylene
Centrotherm Eco Systems InnoFlue® Single-wall
vent pipe, fittings,
— Obtain all materials from Centrotherm
terminations and
cement
(Note: See page 117 for correct appliance adapters to be
used.)
Vent pipe
AL29-4C
stainless
steel
Weil-McLain stainless steel bird screens, 3" or 4" (purchase separately) — see Figure 111, page 117 for part numbers
Note 1: Weil-McLain concentric vent kits are made from PVC
pipe and fittings.
Note 2: System 636 PVC concentric terminations utilize PVC
pipe/fittings certified to ULC S636.
If ULC S636 compliance is required, use only System
636 pipe, fittings and cement.
DO NOT mix piping from different pipe manufacturers
unless using adapters specifically designed for the
purpose by the manufacturer.
Every joint on
include a locking collar.
DO NOT use cellular core PVC (ASTM F891), cellular
core CPVC, or Radel
systems.
DO NOT cover non-metallic vent pipe and fittings
with thermal insulation.
Part number 550-100-131/0120
-
fired water boiler
Material
PVC schedule 40 (Note 1)
PVC-DWV schedule 40 (Note 1)
CPVC schedule 40 (Note 1)
PVC (Note 1)
CPVC (Note 1)
CPVC to PVC transition
AL29-4C stainless steel piping materials
Heat Fab, Inc. — Saf-T-Vent ®
Z-Flex, Inc. — Z-Vent
Dura-Vent — FasNSeal™
Metal-Fab, Inc. — CORR/GUARD
polypropylene vent piping must
® (polyphenolsulfone) in venting
For PVC – USE SWEEP ELBOWS FOR ALL VENT AND AIR PIPING — DO NOT use
short radius elbows for vent or air piping. Boiler performance could be affected.
ALL vent and air pipes require a
the bird screens. Purchase bird screens separately from Weil-McLain or vent kit supplier if
not included. [Note — bird screening is integral to the 3" and 4" PVC Weil-McLain sidewall
vent cap, purchased separately. No additional screening is required.]
— 220/299/300/399 Boiler Manual
(continued)
Standards for installations in:
United States
Vent or air piping
ANSI/ASTM D1785
ANSI/ASTM D2665
ANSI/ASTM F441
ANSI/ASTM D2564/F656
ANSI/ASTM F493
Use only cement and primer
suitable for piping material used
See manufacturer's literature for
detailed information
MUST USE LOCKING
COLLAR ON EVERY JOINT
Certified for Category IV and
direct vent appliance venting
ADAPTERS — AL29-4C piping — Install a PVC-to-stainless
adapter supplied by the AL29-4C stainless pipe manu-
facturer at the 4" PVC boiler vent connection. Can not be
uesd with Weil-McLain termination plate or concentric
termination.
ADAPTERS — Polypropylene piping — Provide adapters
from polypropylene pipe to the 4" PVC connections at
the boiler and at terminations, if required (Weil-McLain
sidewall plate, for example).
ADAPTERS — If using 3" piping, where approved for the
application, provide adapters for the 4" PVC boiler con-
nections and at the terminations, if required (Weil-McLain
sidewall plate, for example).
BIRD SCREEN at each termination
Canada
(Note 2)
Vent piping Air piping
ULC S636
PVC, PVC-DWV,
N/A CPVC or
polypropylene
ULC S636
ULC S636
Use only cement
ULC S636
and primer
suitable for piping
material used
ULC S636
PVC, PVC-DWV,
ULC S636 CPVC or
polypropylene
Certified for Category IV and direct vent
appliance venting
. Most kits do not include
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