Combustion Air & Ventilation - RBI 8900 Series Installation & Operation Manual

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COMBUSTION AIR & VENTILATION
WARNING: This boiler/water heater must be
supplied with combustion air in accordance with
Section 5.3, Air for Combustion & Ventilation, of
the latest revision of the National Fuel Gas
Code, ANSI Z223.1/ NFPA 54 and all applicable
local building codes. Canadian installations
must comply with CAN/ CGA B149.1 or .2
Installation Code for Gas Burning Appliances
and Equipment, or applicable provisions of the
local building codes. Failure to provide adequate
combustion air for this boiler/water heater can
result in excessive levels of carbon monoxide
which can result in severe personal injury or
death!
To operate properly and safely this boiler/water heater
requires a continuous supply of air for combustion.
NEVER store objects on or around the boiler/water heater!
CAUTION: Combustion air contaminated with
fl uorocarbons or other halogenated compounds
such as cleaning solvents and refrigerants will
result in the formation of acids in the combustion
chamber. These acids will cause premature failure
of the boiler/water heater voiding the warranty!
CAUTION: If the boiler/water heater is operated while
the building is under construction it MUST be
protected from wood, concrete, sheet rock and other
types of dust. Failure to properly protect the unit
from construction dust will damage the unit voiding
the warranty!
SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
All Air From Inside The Building
If the boiler/water heater is to be located in a confi ned
space minimum clearances listed in Table 1 or 1A must
be maintained between the boiler/water heater and any
combustible construction. When installed in a confi ned
space, Figures 1, 2, 3, 4 and 5, two permanent openings
communicating with an additional room(s) are required.
The combined volume of these spaces must have
suffi cient volume to meet the criteria for an unconfi ned
space. The total air requirements of all gas utilization
equipment, fireplaces, wood stoves or any type of
exhaust fan must be considered when making this
determination. Each opening must have a minimum free
2
area of 1 in /1000 Btu/hr, 2200 mm
total input rating of ALL gas utilization equipment in the
confi ned area. Each opening must be no less than
2 2
100 in , 64,516 mm in size. The upper opening must
be within 12 in, 305 mm of, but not less than 3 in,
76 mm from, the top of the enclosure. The bottom
opening must be within 12 in, 305 mm of, but not less
than 3 in, 76 mm from, the bottom of the enclosure.
All Air From Outside The Building
When installed in a confi ned space two permanent
openings communicating directly with, or by ducts
to, the outdoors or spaces that freely communicate with
the outdoors must be present. The upper opening must
be within 12 in, 305 mm of, but not less than 3 in,
76 mm from, the top of the enclosure. The bottom
opening must be within 12 in, 305 mm of, but not less
than 3 in, 76 mm from, the bottom of the enclosure.
Where directly communicating with the outdoors
or communicating with the outdoors through vertical
ducts, each opening shall have a minimum free area
2
of 1 in /4000 Btu/hr, 550 mm
rating of all of the equipment in the enclosure.
2
/kW based on the
2
/kW of the total input