Weil-McLain Series 2 Manual page 24

® S
ERIES
Venting & air — general
Figure 23 Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet
local codes (see Figure 119, page 115 for part/kit numbers)
Item
Plastic piping materials
Vent or air pipe
&
fi ttings
PVC & ABS pipe
cement & primer
Simpson-Duravent — Obtain all materials from M&G
Polypropylene
Simpson-Duravent
vent pipe, fi ttings,
Centrotherm Eco Systems InnoFlue
terminations and
Obtain all materials from Centrotherm
cement
Note: See page 115 for correct appliance adapters to be used.
Vent pipe
®
AL29-4C
stainless
steel
Weil-McLain stainless steel bird screens, 2" or 3" (purchase separately) — see Figure 119, page 115 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.
polypropylene vent piping must
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 fi ttings
with thermal insulation.
24
2
-
G
AS FIRED WATER BOILER
Material
PVC schedule 40 (Note 1)
PVC-DWV schedule 40 (Note 1)
CPVC schedule 40 (Note 1)
ABS-DWV schedule 40 (intake only)
PVC (Note 1)
CPVC (Note 1)
ABS (Note 1)
®
Single-wall —
®
AL29-4C stainless steel piping materials
®
Heat Fab, Inc. — Saf-T-Vent
Z-Flex, Inc. — Z-Vent II
Dura-Vent — FasNSeal™
Metal-Fab, Inc. — CORR/GUARD
Centrotherm Eco Systems — InnoFlue
®
(polyphenolsulfone) in venting
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.
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" PVC Weil-McLain sidewall vent
cap, available for purchase from Weil-McLain. No additional screening is required.]
— Boiler Manual
(continued)
Standards for installations in:
United States
Vent or air piping
ANSI/ASTM D1785
ANSI/ASTM D2665
ANSI/ASTM F441
ANSI/ASTM D2261
ANSI/ASTM D2564/F656
ANSI/ASTM F493
ANSI/ASTM D2235
See manufacturer's literature for
detailed information
MUST USE LOCKING
COLLAR ON EVERY JOINT
Certifi ed 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
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)
BIRD SCREEN at each termination
Canada
(Note 2)
Vent piping Air piping
ULC S636
N/A PVC, PVC-DWV,
CPVC or
ULC S636 polypropylene
ULC S636
ULC S636
Use only cement
and primer
ULC S636
suitable for piping
material used
ULC S636
PVC, PVC-DWV,
ULC S636 CPVC or
polypropylene
Certifi ed for Category IV and direct
vent appliance venting
. Most kits do not include
Part number 550-142-190/1218