Gas Vent Category Planning; Air Inlet Planning (United States And Canada Considerations); Flue Venting Considerations; Venting Materials For Flue/Exhaust Systems - Harsco Industrial SC-1500 Owner's Manual

2.4.2 Gas Vent Category Planning

Several codes and standards have categorized appliances in accordance with the flue gas temperature and
pressure produced by the appliance. The applicable categories are defined as follows:
Category II: An appliance that operates with a non-positive vent static pressure and with a vent
•
temperature that may cause excessive condensate production in the vent.
Category IV: An appliance that operates with a positive vent static pressure and with a vent
•
temperature that may cause excessive condensate production in the vent.
Direct Vent: An appliance that is constructed and installed so that all air for combustion is derived
•
directly from outdoors and all flue gases are discharged to the outdoors.

2.4.3 Air Inlet Planning (United States and Canada Considerations)

Air inlet considerations for the United States are established by NFPA 54/ANSI Z223.1 & NFPA/ANSI
•
211.
• Air inlet requirements for the Canada States are established by CAN/CSA B149.1.
For details on the US air inlet requirements see

2.4.4 Flue Venting Considerations

TM
P-K SONIC boilers are dual certified as a Category II and Category IV appliances, as defined in ANSI
Z21.13/CSA 4.9, latest edition. The vent material to be used for US and Canada is listed in the Table of
Acceptable Materials for Venting Systems located in
Systems. The exhaust vent can be run horizontally or vertically.
Vent installations shall be in accordance with NFPA54/ANSI Z223.1, the National Fuel Gas Code, or
CAN/ CSA-B149.1, the Natural Gas and Propane Installation Code, or applicable provisions of the local
building codes.

2.4.5 Venting Materials for Flue/Exhaust Systems

TM
The P-K SONIC boilers are dual certified as a Category II and Category IV
appliances, which vents with a temperature that is likely to cause condensation
in the vent. Therefore, any venting system used with the P-K SONIC
must comply with the requirements for either Category II or Category IV venting
systems as specified in the latest edition of
the latest edition of
CAN/CSA B-149.1
CPVC Venting
US: CPVC pipe conforming to ASTM F441. Sch 80 fittings
conforming to ASTM F439. Joints are to be sealed with solvent
conforming ASTM 493.
Canada: CPVC Pipe, Fitting and Sealant listed and
labeled to ULC S-636 Standard for Type BH Venting
Systems.
Polypropylene Venting
US and Canada: Polypropylene such as InnoFlue from
Centrotherm or PolyPro from DuraVent or other listed
manufacturers. When used, the same manufacturer's material
must be used throughout the system. It is not permissible to use
material from different manufacturers within the same system.
Section 3.3.1 Air Inlet Requirements
Section 2.4.5 Venting Materials for Flue/Exhaust
NFPA 54/ANSI Z223.1
in Canada.
TM
P-K SONIC
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The venting materials listed are
TM
boiler
intended for the venting of gas
burning appliances only. Do
not use these venting materials
in the US or
for venting liquid or solid fuel
(such as oil, kerosene, wood or
Maintain clearances to
combustibles as listed in the
installation instructions or as
set forth in the codes and
standards listed in this section.
Do not use these vent pipes for
incinerators of any sort!
This boiler is not certified for
use with PVC venting. Use of
PVC venting may result in vent
failure and possible serious
Gas Fired Boiler
for more details.
coal) appliances.
vent manufacturer's
injury or death.