Harsco Industrial MACH C1500GG Installation & Owner's Manual page 19

Through the wall terminations shall not terminate over public walkways or over an area where condensate or
vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief valves or
other equipment.
Direct Vent (Sealed Combustion) Systems Clearances
The vent terminal shall be located at least 12 in. from any air opening into a building. The bottom of the vent
terminal shall be at least 12 in. above grade. Both the vent and air intake terminals must be at least 12 in. above
the highest expected snow line.
Through the wall terminations shall not terminate over public walkways or over an area where condensate or
vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief valves or
other equipment.
When multiple direct vent appliances are adjacent, the exhaust must terminate at least 10 feet horizontally or
three feet vertically from the air intake of another appliance.
Interior Component Clearances
All vent system components shall be installed so as to maintain the following required minimum clearances:
Unlisted single wall metal pipe
Single wall CPVC pipe
UL 1738 listed Category IV vent
NOTICE! Make sure that the weight of the vent is not supported by the boiler vent collar. The collar
is not designed to support the weight of the vent. The CPVC or manufactured vent system shall be
supported in accordance with the manufacturer's instructions. Horizontal vent sections shall be
supported in a manner to prevent sags or low spots where condensate can collect. Structural supports
must be connected to building elements of sufficient strength to withstand the weight of the vent system
and any bending forces imposed by the venting system.
Combustible
Do NOT Use
Do NOT Use
Per manufacturer's listing
Page 19
MACH® Gas-Fired Boiler
Non-Combustibles
Do NOT Use
Do NOT Use
Per manufacturer's listing