VICTORY II VHS Models
CATEGORY I VENTING (Natural Draft Chimney and
Type “B” Venting)
1. Installation
Model
2.Vent Connector Material
Vent connectors may be single wall or Type “B” made of galvanized or stainless steel materials.
3.Venting Requirements
If the boiler vent is to be installed into a natural draft masonry chimney or Type “B” venting, it must be in accor- dance with National Fuel Gas Code ANSI
For a masonry vitreous
If a masonry chimney is exposed to the outdoors on one or more sides below the roof line (exposed chimney), it must be
If a Type “B” vent system is used, it must NOT be exposed to the outdoors below the roof line. See Table 2 in this Slant/Fin manual for venting requirements. Vent connec- tors serving appliances vented by natural draft shall NOT be connected into any portion of mechanical draft sys- tems operating under positive pressure.
In some cases, the vent connector diameter must be up- sized further to 6" or 7". Refer to Table 1 and 2 for instal- lations requiring this increased size.
If this boiler is replacing a boiler which is connected to a common venting system with other natural draft,
10