Harsco Industrial P-K THERMIFIC N700, Инструкция по установке и эксплуатации

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P-K THERMIFIC
®
Gas-Fired Boiler
16
Table of Canadian Minimum Area of Combustion and Ventilation Air Openings
P-K
THERMIFIC
®
Model #
Input
Required Combustion Air
Opening
Ventilation Air Opening
Btu/Hr in
2
mm
2
in
2
mm
2
N700 700,000 100 64,516 10 6,452
N1000 1,000,000 143 92,257 14.3 9,226
N1500 1,500,000 179 115,484 17.9 11,548
N1700 1,700,000 193 124,516 19.3 12,452
N2000 2,000,000 214 138,064 21.4 13,806
3.5.3 Flue Venting
P-K THERMIFIC
®
boilers are Category I appliances, as defined in ANSI Z21.13/CSA 4.9, latest edition.
The P-K THERMIFIC
®
boiler may be vented with any venting systems meeting the requirements of
Category I venting systems as specified in the latest edition of NFPA 54/ANSI Z223.1 in the US or the
latest edition of CAN/CSA B-149.1 in Canada.
This boiler is suitable for use with Type "B" vent.
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.
If the boiler is installed using sealed combustion / direct vent, see Section 3.5.5.
3.5.3.1 Vent Sizing
The vent must be sized in accordance with the ASHRAE Systems and Equipment handbook, Chapter 30
or according to the vent manufacturer’s recommendations. When using manufactured venting systems,
consult your vent supplier for correct sizing and structural support requirements. Vent diameter is
dictated by the length and height of horizontal and vertical portions of the vent installation and materials
of construction.
Table of Vent Design Parameters
P-K THERMIFIC
®
Mod-
el
Stack Draft Stack Temperature CO
2
Natural Gas CO
2
LP Gas
N700-N2000 -0.04” 325°F 7.6% 8.9%
Design calculations should be based on a negative 0.04” W.C. with a stack temperature of 325º F (gross)
and a CO
2
level of 7.6%; (these values are to be used for vent sizing calculations.) The maximum
allowable length of the vent duct, including the boot tee/135º tee (not a standard tee) and the termination
is 100 equivalent feet. See the table below for the equivalent length of fittings used in the venting system