P-K THERMIFIC
®
Gas-Fired Boiler
13
The venting materials listed below 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.
Table of Applicable Vent Materials by P-K THERMIFIC
®
Boiler Model
Model B-Vent
Chimney
Single Wall
Metal Pipe
Listed Gas
Vent System
Special Gas
Vent System
UL 1738 listed
Cat II/III/IV
United States
N700-N1000 X
X
X
X
X
N1500-N2000 On-Off
X
X
X
X
X
N1500-N2000 LHL
X
X
X
X
X
N700-N2000 Sealed Combus-
tion
No No
No
No
No
X
Canada
N700-N1000 X
X
X
X
X
N1500-N2000 On-Off
X
X
X
X
X
N1500-N2000 LHL
X
X
X
X
X
N700-N2000 Sealed Combus-
tion
No No
No
No
No
X
3.5.2 Combustion
Air
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.
Under no circumstances shall the boiler room ever be under a negative
pressure. Particular care should be taken when exhaust fans, compressors, air-handling units or other
equipment may rob air from the boiler. Note that this equipment might be in rooms other than the boiler
room.
3.5.2.1
Air Inlet Requirements – United States (NFPA 54/ANSI Z223.1 & NFPA/ANSI 211)
When air is supplied from inside the building, the total required volume shall be the sum of the required
volume for all the appliances located in the mechanical room. Adjacent rooms furnished with fixed
openings communicating directly with the mechanical room are considered part of the required volume.
The minimum volume is 50 ft
3
per 1000 Btu/hr (4.8 m
3
/kW) of installed appliance input capacity.
Содержание P-K THERMIFIC N700
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Страница 52: ...P K THERMIFIC Gas Fired Boiler 52 6 1 1 On Off 6 1 1 1 On Off Wiring Diagram 700 1000 1500 1700 2000...
Страница 53: ...P K THERMIFIC Gas Fired Boiler 53 6 1 1 2 On Off Sealed Combustion Diagram 700 1000...
Страница 54: ...P K THERMIFIC Gas Fired Boiler 54 6 1 1 3 On Off Sealed Combustion Diagram 1500 1700 2000...
Страница 55: ...P K THERMIFIC Gas Fired Boiler 55 6 1 2 Lo Hi Lo 6 1 2 1 Lo Hi Lo Wiring Diagram 1500 1700 2000...
Страница 56: ...P K THERMIFIC Gas Fired Boiler 56 6 1 2 2 Lo Hi Lo Sealed Combustion Diagram 1500 1700 2000...
Страница 57: ...P K THERMIFIC Gas Fired Boiler 57 6 1 3 Low Water Cutoff 6 1 3 1 Field Installed Low Water Cut Off Diagram...
Страница 58: ...P K THERMIFIC Gas Fired Boiler 58 6 1 3 2 Factory Installed Low Water Cut Off Diagram...
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