Gas Vent Categories; Venting Materials For Flue/Exhaust Systems; Combustion Air Materials And Sizes - Harsco Industrial P-K SONIC SC-3000 Installation & Owner's Manual

Table 3.5.1
! Required stainless steel Vent Adapters and Category II motorized Dampers
WARNING
Boiler size
Design and installation of venting
systems should be done only
by qualified and knowledgeable
SC-3000
venting systems personnel and
SC-4000
in accordance with vent system
manufacturer's installation
instructions. Installing a boiler
This table is for information only. Combustion air dampers and vent
or vent system using improper
adapters are listed for use of design and may or may not be specific to
installation methods or materials
your application.
can result in serious injury or
The optional, but required for Category II venting, normally-closed
death due to fire or asphyxiation.
motorized combustion air damper operates on 120
end limit switch wired into the boiler's external interlock circuit. Upon a
!
call for heat, the boiler's combustion air damper relay will energize and
WARNING
drive the damper open. Once the damper reaches the fully-open position,
Before connecting a boiler to a
the end limit switch makes contact and closes the external interlock circuit
venting system, it must be
allowing the boiler to fire. The diagram below shows the wiring necessary
determined whether the boiler is
to install the normally-closed motorized damper.
to be installed in a conventional
or direct vent configuration. In the
US, provisions for combustion
and ventilation air must be in
accordance with
NFPA 54/ANSI
, National Fuel Gas Code,
Z223.1
latest edition, or applicable
provisions of the local building
codes. In Canada, combustion
and ventilation air openings shall
comply with
CAN/CSA B-149.1
Natural Gas and Propane

3.5.1.1 Gas Vent Categories

Installation Code.
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:
WARNING
•
For correct installation of vent
static pressure and with a vent temperature that may cause excessive
system, read all of these
condensate production in the vent.
instructions and refer to vent
manufacturer's instructions. •
pressure and with a vent temperature that may cause excessive
Failure to use a proper vent
condensate production in the vent.
system (types and materials),
•
as described in this manual will
void the boiler warranty and may air for combustion is derived directly from outdoors and all flue gases are
result in rapid deterioration of the
discharged to the outdoors.
venting system, creating a health
or life safety hazard.

3.5.1.2 Venting materials for Flue/exhaust systems

Faulty vent installation can allow The
appliances, which vents with a temperature that is likely to cause condensation
toxic fumes to be released into
in the vent. Therefore, any venting system used with the
living areas. This may cause
must comply with the requirements for either Category II or Category IV
property damage, serious bodily
venting systems as specified in the latest edition of
injury or death.
US or the latest edition of
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
12
Nom. stainless Vent Boiler
vent
Vent adapter Combustion
size Adapter size Air inlet
10" 2640000133 10" 12"
10" 2640000133 10" 12"
Category II: An appliance that operates with a non-positive vent
Category IV: An appliance that operates with a positive vent static
Direct Vent: An appliance that is constructed and installed so that all
P-K SONIC™ boilers are dual certified as a Category II and Category IV
NFPA 54/ANSI Z223.1
in Canada.
CAN/CSA B-149.1
Gas Fired Boiler
CPVC Venting
CPVC pipe conforming to ASTM F441. Sch 80 fittings conforming to ASTM
us:
F439. Joints are to be sealed with solvent conforming ASTM 493.
Combustion air length
Canada: CPVC Pipe, Fitting and Sealant listed and labeled to ULC S-636
N.C. motorized
Standard for Type BH Venting Systems.
Damper
1004906946 12"
Polypropylene Venting
1004906989 14"
us and Canada:
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.
As per ANsI Z21.13b-2012 * CsA 4.9b-2012:
•
The use of cellular core PVC, CPVC and Radel as venting materials is
and features an
VAC
prohibited.
•
The use of external insulation on plastic vent pipe is prohibited.
Acceptable Venting materials
Table 3.5.1.2
model Country Al29-4C 316l ss PVC CPVC
SC-3000 US
SC-4000 US
SC-3000 Canada
SC-4000 Canada
Note 1: When this material is used for venting, it must be listed to ULC-S636.
Note 2: When this material is used for venting, it must be listed to UL-1738.

3.5.2 Combustion Air materials and sizes

The air intake duct can be fabricated from PVC, CPVC, single wall
galvanized steel, or other suitable materials. The duct must be rigid
enough to maintain the full required cross sectional area under all
operating conditions. Proper sealing of the intake ductwork is necessary
to prevent infiltration of air from conditioned space. Joints in PVC or CPVC must be cemented. For galvanized
duct, wrap each joint and seam with adhesive aluminum tape or other sealant. The installation of a bird screen on
the intake termination is recommended. Ensure that the screen does not become blocked with snow, ice, insects
etc. Combustion air duct should be designed with maximum 0.22" wc friction loss.
Combustion air must be free from dust, lint, etc. The presence of such materials in the air supplied to the burner
could cause nuisance "Low Air" shutdowns or premature burner failure. The boiler should not be operated during
construction while the possibility of drywall dust, demolition dust, etc. exists.
The combustion air supply must be completely free of chemical fumes which may be corrosive when burned in
the boiler. Common chemicals which must be avoided are fluorocarbons and other halogenated compounds,
most commonly present as refrigerants or solvents, such as Freon, trichloroethylene, perchloroethylene, chlorine,
etc. These chemicals, when burned, form acids which quickly attack the boiler and the boiler stack. The result is
improper combustion and premature boiler failure.
Acceptable materials for Venting systems
Manufactured Venting Systems
us and Canada:
boiler
P-K SONIC™
AL29-4C Stainless Steel Vent Systems listed and labeled to UL1738 Venting Systems for Gas-Burning Appliances,
Categories II, III, and IV
in the
316L Stainless Steel where certified and warranted by the vent manufacturer for venting of Category II, III, or IV appliances
Polypropylene such as InnoFlue from Centrotherm
POlyPROPyleNe
Yes Yes No Yes Note 2
Yes Yes No Yes Note 2
Yes Yes No Note 1 Note 1
Yes Yes No Note 1 Note 1
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
Gas Fired Boiler
!
WARNING
The venting materials listed are
intended for the venting of gas
burning appliances only. Do not
use these venting materials for
venting liquid or solid fuel (such
as oil, kerosene, wood or coal)
appliances.
Maintain clearances to
combustibles as listed in the
vent manufacturer's 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
injury or death.
Table 3.5.3
P-K sONIC™ Boiler model Required sCFm
SC-3000 629
SC-4000 839
13