CHS Series CHS 300-399 Common Venting
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Slant Fin Corp.
6
Exhaust Vent & Combustion Air-Inlet Piping
The Slant/Fin CHS 300-399 are certified as a “Category IV” boiler requiring a “Special Venting System,”
designed for pressurized venting. The Exhaust and Combustion Air-Inlet must be
DIRECT VENTED
to the
outdoors, using the venting materials outlined in Table 2-3 of this manual. Under no conditions shall the products
of combustion be vented into a masonry chimney.
Centrotherm – InnoFlue is the only manufacture to be used for the CHS 300-399 Common Venting and
termination. The common vent and termination parts are to be field supplied by the Installer. Consult
Centrotherm – InnoFlue Eco Systems (1-877-434-3432 or www.centrotherm.us.com) instructions for further
details.
Pipe Length
– The maximum equivalent pipe length for the Exhaust Vent and Combustion Air-Inlet is 100 feet
each. The minimum length for the Exhaust Vent and Combustion Air-Inlet is 5 feet each.
Elbows
– Both 45° and 87° Elbows are equivalent to 5 feet of pipe length.
Centrotherm – InnoFlue is ULC-S636 and UL-1738 approved for use in Canada and the
United States. Centrotherm – InnoFlue 6” diameter polypropylene piping is the only
product approved for use with the Slant/Fin CHS Common Venting.
Supporting Venting
Connector Rings
– mandatory on every exhaust vent and air-inlet connection. Connector Rings lock the venting
together, and prevent it from pulling apart. Consult Centrotherm – InnoFlue Eco Systems (1-877-434-3432 or
www.centrotherm.us.com) instructions for further details.
Support Clamps
– shall be installed on the exhaust vent and air-inlet piping every 75” for vertical runs and every
40” for horizontal runs. Support clamps alleviate strain on the vent connections, and prevent the piping from
drooping. Consult Centrotherm – InnoFlue Eco Systems (1-877-434-3432 or www.centrotherm.us.com)
instructions for further details.
Exhaust Vent and Combustion Air-Inlet piping requires Support Clamps spaced every
75” for vertical runs and every 40” for horizontal runs and Connector Rings on every
connection. Failure to follow these instructions may result in property damage, serious
injury or death.
Termination Options
Centrotherm – InnoFlue PPs-UV 6” diameter termination parts are the only parts approved for terminating the
venting of the common vent system, see Table 2.3. PPs – UV is approved for use in direct sunlight and designed
to endure weather conditions. Consult Centrotherm – InnoFlue Eco Systems (1-877-434-3432 or
www.centrotherm.us.com) instructions for further details.
Termination Configurations
are decided by the installer and must conform to Section 5.0 of this manual and the
boiler installation manual.
