Weil-McLain GOLD CGs - Manual (Page 7)

V V V V Vertical Direct V ertical Direct V ertical Direct V ertical Direct V ertical Direct Venting — V enting — V enting — V enting — V enting — Venting Supplement enting Supplement enting Supplement enting Supplement enting Supplement
Part Number 550-141-873/0502 7
The following special gas vent systems comply with UL-1738 and ULC-
S636 standards and are certified by CSA as the only systems suitable for
use with CGs boilers:
• Heat-Fab, Inc. Saf-T Vent ®
• Flex-L International, Inc. StaR-34
• Z-Flex®, Inc. Z-Vent II
• ProTech Systems FasNSeal™
Use only the vent starter of the same manufacturer as the vent compo-
nents. Do not mix components from different systems. The vent system
could fail, causing flue gas spillage, resulting in severe personal injury or
death.
4. Obtain vent system components
1. The Through-Roof or Through-Unused-Chimney Termination Kit
provides special parts required to route 3-inch stainless vent pipe
through 5-inch B-vent. The space between the vents provides the
passage for combustion air. See page 9 for parts included with the kit.
2. Verify that the vent termination will comply with the requirements
listed on page 11. Then verify that the vent and air piping will not
exceed the length limits given in
section 8 of this supplement before
locating boiler or floor/roof penetrations.
3. You will need to obtain stainless vent pipe and fittings, using only the
vent systems listed in the CGi, CGs & GV Vent Component
Supplement . Also obtain B-vent pipe and fittings for the vertical run
and floor/roof penetrations (See Table 3 ).
4. Use suitable 3" material for combustion air connector piping, such as:
• Dryer vent
• Galvanized steel
• PVC (3" I.D.)