UTICA BOILERS DV-B Series, Дополнение

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PAGE 11
VER VER VER VER VERTICAL TICAL TICAL TICAL TICAL VENT PIPE INST VENT PIPE INST VENT PIPE INST VENT PIPE INST VENT PIPE INSTALLA ALLA ALLA ALLA ALLATION TION TION TION TION
INSTRUCTIONS INSTRUCTIONS INSTRUCTIONS INSTRUCTIONS INSTRUCTIONS
(PROVIDING FOR PROPER VENTING THROUGH THE ROOF)
Vent boiler making Ref. to NFGC section 2 & 10 and using these instructions and the
requirements of the local utilities and other local code authorities. You must connect boiler to
a vent or factory-built chimney. Vent or factory-built chimney must meet a recognized standard.
Chimney lining method and material must comply with local code requirements. Use corrosion-
resistant material meeting nationally recognized standards for vent construction.
WARNING: WARNING:
WARNING: WARNING: WARNING:
Inadequate vent or chimney could allow combustion products
to collect in structure, resulting in injury or death.
WARNING: WARNING: WARNING: WARNING: WARNING:
Vent this boiler separately from any appliance designed to burn
solid fuel, particularly wood burning or coal burning appliances. Improper venting could allow
combustion products to collect in the structure, resulting in injury or death.
A. VENTING CATEGORY
The boilers covered by this manual are design-certified as CATEGORY 1 for venting.
CATEGORY 1 Appliances have non-positive vent static pressure and rely on the heat
content of combustion products to vent. You may common vent CATEGORY 1 boilers.
The boilers covered by this manual are also design certified as CATEGORY 3 for
venting, only when they installed with manufacturer specified vent system components and
installed practices.(Ref. pages 1-10 for category 3 venting instructions)
B. DESIGN CONSIDERATIONS
1. Avoid oversizing boiler for your application. Select a boiler model with a rated heating
output close to the calculated heating load. This extends the firing period, decreasing the
potential for condensate formation in the vent.
2. Too small a vent cannot carry all combustion products outdoors. Too large a vent will
not vent combustion products rapidly enough to avoid potential for condensation. Refer to
pages 15 thru 18 for correct vent size.
3. Vent height must be a minimum of six feet. Minimize vent connector horizontal runs
to the extent possible for best performance.
4. The designer must consider the building’s orientation, answering these questions.
(Ref. pages 13-15)
A. Will the vent terminate outside the building where its operation could be
adversely affected by winds?
B. Could any adjacent buildings adversely affect vent operation?
C.Allowing for these factors can reduce the possibility of downdraft
conditions.
5. If your local experience indicates possible condensation problems, provide for
draining and disposal of venting system condensate.
C. VENT SIZING
1. Sometimes the horizontal distance from the boiler to the vent or chimney is already
given; this is known as the horizontal vent connector run. The vent or chimney height is also
usually given as the Btuh input of the gas appliances served by the vent.