Weil-McLain WM97+100 Manual page 24

WM97+ Series 2
Venting & air — general
Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet
local codes (see Figure 130, page 127 for part/kit numbers)
Simpson-Duravent
Obtain all materials from Centrotherm
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
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 –
-
GAS FIRED WATER BOILER
PVC schedule 40
PVC-DWV schedule 40 (Note 1)
CPVC schedule 40 (Note 1)
PVC
CPVC (Note 1)
Obtain all materials from M&G
®
Heat Fab, Inc. — Saf-T-Vent
Z-Flex, Inc. — Z-Vent II
Dura-Vent — FasNSeal™
Metal-Fab, Inc. — CORR/GUARD
Centrotherm Eco Systems — InnoFlue
polypropylene vent piping must
®
(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, supplied standard with all WM97+ boilers. No additional screening is required.]
— Boiler Manual
(cont.)
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
Certifi ed for Category IV and
direct vent appliance venting
®
(purchase separately) — see Figure 130, page 127 for part numbers
ADAPTERS — AL29-4C piping — Install a PVC-to-stainless
adapter supplied by the AL29-4C stainless pipe manu-
facturer 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 con-
nections and at the terminations, if required (Weil-McLain
sidewall plate, for example).
BIRD SCREEN at each termination
(Note 2)
ULC S636
PVC, PVC-DWV,
NA CPVC or
polypropylene
ULC S636
Use only cement
ULC S636
and primer
suitable for piping
ULC S636
material used
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 550-142-204/0117