User Guide

Part number 550-100-400/0717
19
"!3)#).34!,,!4)/.
®
SERIES 4 GAS-FIRED WATER BOILER — Boiler Manual
Venting & air — general (cont.)
&IGURE Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet local codes
)TEM -ATERIAL
3TANDARDSFORINSTALLATIONSIN
5NITED3TATES #ANADA
0LASTICPIPINGMATERIALS
6ENTORAIRPIPE
lTTINGS
PVC schedule 40 ANSI/ASTM D1785
Plastic vent pipe must be
certifi ed to ULC S636 when
required. (Note 2)
Air pipe can be any of those
listed at left if acceptable for
local codes.
PVC-DWV (Note 1) ANSI/ASTM D2665
CPVC schedule 40 (Note 1) ANSI/ASTM F441
ABS-DWV schedule 40 (Note 1) ANSI/ASTM D2661
06#!"3PIPE
CEMENTPRIMER
PVC ANSI/ASTM D2564
CPVC (Note 1) ANSI/ASTM F493
ABS (Note 1) ANSI/ASTM D2235
Polypropylene
vent pipe,
terminations
3IMPSON$URAVENTObtain all materials from
M&G Simpson-Duravent
#ENTROTHERM%CO3YSTEMS)NNO&LUE®3INGLE
WALLObtain all materials from Centrotherm
See manufacturer’s literature for detailed
information
MUST USE LOCKING COLLAR ON
EVERY JOINT
ULC S636
!,#PIPINGMATERIALS
6ENTPIPE
!,#
STAINLESS
STEEL
Heat Fab, Inc. — Saf-T-Vent
®
Z-Flex, Inc. — Z-Vent II
Simpson Dura-Vent — FasNSeal™
Certifi ed for Category IV and direct vent
appliance venting
Certifi ed for Category IV and
direct vent
appliance venting
7EIL-C,AINBIRDSCREENS(purchase separately)
7EIL-C,AIN
BIRD
SCREENS
For 2” or 3” vent or air termination
(cut to size if necessary)
3” vent screen:
W-M part number 383-500-105
For 3” or 4” vent or air termination
(cut to size if necessary)
4” vent screen:
W-M part number 383-500-110
Note 1: DO NOT use DWV, CPVC or ABS when using concentric vent termination. Use ONLY PVC schedule 40.
Note 2: IPEX PVC concentric terminations utilize PVC pipe/fi ttings certifi ed to ULC S636. Where ULC S636 compliance is required, use
only IPEX System 636 pipe, fi ttings and cement.
AL29-4C vent piping — Install a PVC-to-stainless adapter supplied by the vent pipe manufacturer at the boiler vent connection
and at the termination (when using Weil-McLain plate or concentric PVC termination). DO NOT mix piping from different vent
pipe manufacturers unless using adapters specifi cally designed for the purpose by the manufacturer.
Plastic piping — Do not attempt to connect different types of plastic piping together.
DO NOT use cellular core pipe.
All vent and air pipes require a BIRDSCREENATEACHTERMINATION where specifi ed in the manual or vent supplement. Purchase
bird screens separately from Weil-McLain or vent kit supplier. Note that most kits do not include the screens.