Weil-McLain Aqua Balance WMB-155 Manual page 19

W
TM
AquaBalance
6 Venting/air piping — general
Figure 22
Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet local
codes (see Figure 159, page 117 for part/kit numbers).
Item
Plastic piping materials
Vent or air pipe
&
¿WWLQJV
PVC & ABS pipe
cement & primer
Polypropylene
Simpson-Duravent — Obtain all materials from
YHQW SLSH ¿WWLQJV
M&G Simpson-Duravent
terminations and Centrotherm Eco Systems InnoFlue® Single-
wall — Obtain all materials from Centrotherm
cement
Vent pipe
AL29-4C
stainless
steel
Stainless steel bird screens, 2" or 3" (purchase separately) — see Figure 159, 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 manufactur-
ers unless using adapters specifically 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 fittings
with thermal insulation.
Part number 550-100-305/0118
M -
ALL OUNT GAS FIRED WATER BOILER
Material
PVC schedule 40
PVC-DWV schedule 40
(Note 1)
CPVC schedule 40
(Note 1)
PVC
CPVC
(Note 1)
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
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" PVC Weil-McLain sidewall vent
cap, available for purchase from Weil-McLain.
—
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
See manufacturer's literature
for detailed information
MUST USE LOCKING
COLLAR ON EVERY JOINT
Certified for direct vent
appliance venting
ADAPTERS – The boiler comes with a 3",
3-in-1 adapter as standard. This adapter allows the
installation of 3" PVC schedule 40, CPVC schedule 40,
PVC-DWV schedule 40, AL29-4C stainless steel and
Polypropylene (from Simpson-Duravent only) piping
without the need for extra adapters.
It may require an adapter at terminations.
If your venting system uses Centrotherm Eco
systems InnoFlue single wall material, then an ap-
proved adapter is required.
If using 2" piping (WMB-80/120 only), where ap-
proved for the application, provide adapters for a
3" pipe material (mentioned above) connections
and at the terminations, if required.
BIRD SCREEN at each termination
No additional screening is required.]
Canada
(Note 2)
Vent piping Air piping
ULC S636
PVC, PVC-DWV,
NA
CPVC or
polypropylene
ULC S636
Use only cement
ULC S636
and primer suitable
for piping material
ULC S636
used
PVC, PVC-DWV,
ULC S636
CPVC or
polypropylene
Certified for direct vent appliance
venting
. Most kits do not include
19