Harsco Industrial C1500H Installation & Owner's Manual page 23

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.
Table of Vent Design Parameters
®
MACH Boiler Model
C1500H/ C2000H/C2500
C3000/C4000
venting. Positive exhaust pressure may exist which may leak flue gases into the room.
experienced in venting system design. The information contained herein should be used as a guide only and is not
intended to be used in lieu of qualified technical expertise.
3.5.3.2 Required Clearances
Provide clearances between combustion air intake, exhaust vent, roof and wall surfaces, doors and window, and
snow line. Refer to Figure below: Termination Clearances – Forced Draft and Direct Vent Installations.
Reference: NFPA 54/ANSI Z223.1 National Fuel Gas Code
Frictional
Resistance
0.22" W.C.
Do not use a barometric damper with this boiler when installed with Category IV
All boiler venting systems should be designed by a qualified venting professional
Stack
CO
2
Temperature
220 °F
23
®
MACH Gas Fired Boiler
Natural Gas CO LP Gas
2
9.2% 10.4%