Weil-McLain Evergreen EVG 110, Manual

Page: 24 / 144

Venting & air — general
(continued)
Figure 23 Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet
local codes (see Figure 110, page 127 for part/kit numbers)
ALL vent and air pipes require a
BIRD SCREEN at each termination
. Most kits do not include
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" PVC Weil-McLain sidewall vent
cap,
available for purchase from Weil-McLain. No additional screening is required.]
USE SWEEP ELBOWS FOR ALL VENT AND AIR PIPING — DO NOT use short
radius elbows for vent or air piping. Boiler performance could be aff ected.
Part number 550-100-191/0917
24
®
g
as-fired water boiler —
70/110/155
Boiler Manual
Item Material
Standards for installations in:
United States Canada
(Note 2)
Plastic piping materials Vent or air piping
Vent
piping
Air
piping
Vent or air pipe
&
fi ttings
PVC schedule 40 ANSI/ASTM D1785 ULC S636
PVC, PVC-DWV,
CPVC or
polypropylene
PVC-DWV schedule 40 (Note 1) ANSI/ASTM D2665 NA
CPVC schedule 40 (Note 1) ANSI/ASTM F441 ULC S636
PVC & ABS pipe
cement & primer
PVC ANSI/ASTM D2564/F656 ULC S636
Use only cement
and primer
suitable for piping
material used
CPVC (Note 1) ANSI/ASTM F493 ULC S636
Polypropylene
vent pipe, fi ttings,
terminations and
cement
Simpson-Duravent — Obtain all materials from M&G
Simpson-Duravent
Centrotherm Eco Systems InnoFlue
®
Single-wall —
Obtain all materials from Centrotherm
Note: See
page 127 for correct appliance adapters to be used.
See manufacturer’s literature for
detailed information
MUST USE LOCKING
COLLAR ON EVERY JOINT
ULC S636
PVC, PVC-DWV,
CPVC or
polypropylene
AL29-4C stainless steel piping materials
Vent pipe
AL29-4C
stainless
steel
Heat Fab, Inc. — Saf-T-Vent
®
Z-Flex, Inc. — Z-Vent II
Dura-Vent — FasNSeal™
Metal-Fab, Inc. — CORR/GUARD
Centrotherm Eco Systems — InnoFlue
®
Certifi ed for Category IV and
direct vent appliance venting Certifi ed for Category IV and direct
vent appliance venting
Weil-McLain stainless steel bird screens, 2" or 3" (purchase separately) — see Figure 110, page 127 for part numbers
Note 1: Weil-McLain concentric vent kits are made from PVC pipe
and fi ttings.
Note 2: System 636 PVC concentric terminations utilize PVC
pipe/fi ttings certifi ed to ULC S636.
If ULC S636 compliance is required, use only System 636
pipe, fi ttings and cement.
DO NOT mix piping from diff erent pipe manufacturers
unless using adapters specifi cally designed for the purpose
by the manufacturer.
Every joint on
polypropylene vent piping must
include
a locking collar.
DO NOT use cellular core PVC (ASTM F891), cellular core
CPVC, or Radel
®
(polyphenolsulfone) in venting systems.
DO NOT cover non-metallic vent pipe and fi ttings with
thermal insulation.
ADAPTERS — AL29-4C piping — Install a PVC-to-stainless
adapter supplied by the AL29-4C stainless pipe
manufacturer at the 3" PVC boiler vent connection
and at the termination (if using Weil-McLain plate or
concentric PVC termination).
ADAPTERS — Polypropylene piping — Provide adapters
from polypropylene pipe to the 3" PVC connections at
the boiler and at terminations, if required (Weil-McLain
sidewall plate, for example).
ADAPTERS — If using 2" piping, where approved for
the application, provide adapters for the 3" PVC boiler
connections and at the terminations, if required (Weil-
McLain sidewall plate, for example)