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Part number 550-100-260/0520
23
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
Venting & air — general (continued)
Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet
local codes (see Figure 125, page 137 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 a ected.
(Note 2)
&
PVC schedule 40 (Note 1) ANSI/ASTM D1785 ULC S636
ABS,
PVC, PVC-DWV,
CPVC or
polypropylene
PVC-DWV schedule 40 (Note 1) ANSI/ASTM D2665 N/A
CPVC schedule 40 (Note 1) ANSI/ASTM F441 ULC S636
ABS-DWV schedule 40 (Intake Only) ANSI/ASTM D2661 ULC S636
PVC (Note 1) ANSI/ASTM D2564/F656 ULC S636
Use only cement
and primer
suitable for piping
material used
CPVC (Note 1) ANSI/ASTM F493 ULC S636
ABS schedule 40 (Note 1) ANSI/ASTM D2235 ULC S636
Obtain all materials from M&G
Simpson-Duravent
®
Obtain all materials from Centrotherm
Note: See
page 137 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
Heat Fab, Inc. — Saf-T-Vent
®
Z-Flex, Inc. — Z-Vent II
Dura-Vent — FasNSeal™
Metal-Fab, Inc. — CORR/GUARD
See Figure 125, page 137 for Mfg's adapter
part numbers.
Certifi ed for Category IV and
direct vent appliance venting
Certifi ed for Category IV and direct
vent appliance venting
(purchase separately) — see Figure 125, page 137 for part numbers.
Note 1: Weil-McLain concentric vent kits are made from PVC
pipe and ttings.
Note 2: System 636 PVC concentric terminations utilize PVC
pipe/ ttings certi ed to ULC S636.
If ULC S636 compliance is required, use only System 636
pipe, ttings and cement.
DO NOT mix piping from di erent pipe manufacturers
unless using adapters speci 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 ttings with
thermal insulation.
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
(from Simpson-Duravent only) and Polypropylene
(from Simpson-Duravent & Centrotherm only)
piping without the need for extra adapters.
ADAPTERS – It may require additional adapters at the
terminations if using di erent venting materials.
(When going from PP to the Weil-McLain side wall
plate, for example).
ADAPTERS - If using 2" piping, where approved for
the application, provide adapters for a 3" pipe
material (mentioned above) connections and at
the terminations, if required.
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