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The BW9, unlike normal residential atmospheric and induced draft
boilers, takes its combustion air directly from the outdoors (sealed
combustion) and does not compete with building occupants for
fresh air. Sealed combustion (also known as “direct vent”) is the
safest and best way to obtain plenty of clean combustion air. The
induced draft fan draws in the outside combustion air, then takes the
cooler flue gases from the heat exchanger and provides a positive
removal of the flue gases from the building through inexpensive and
readily available PVC and CPVC pipes.
FEATURES
RANGE OF CAPACITIES
—Three sizes ranging from 50,000
through 100,000 Btuh input.
COMPLETELY PACKAGED
—Each boiler is completely
assembled, including all controls (except room thermostat). All
necessary wiring is factory installed. The boiler is ready for gas
piping, room thermostat, and electrical power connections as
shipped. Circulator is shipped pre-wired with 6 ft bx conduit for
easy installation for supply side pumping.
VENTING
—This boiler is direct vented with PVC and CPVC pipe.
See the Installation Instructions for common venting requirements.
ALUMINUM SECTIONS
—These sections speed heat transfer to
the boiler water. With faster thermal response, greater comfort and
economy are achieved.
PRE-MIX BURNER
—Provides quiet operation and improved
combustion efficiency.
CONTROLS
—Integrated Boiler Control provides safe,
dependable operation of burners. Factory-installed safety
components provide maximum safety against overheating,
pressure buildup, and low-water operation.
SECTIONS TESTED
—Each section is hydrostatically tested to
50 psig. Individual sections are tested to 125 psig at factory.
Assembled sections are tested to 75 psig at the factory. The
maximum allowable pressure is 50 psig for hot water boilers.
PROPANE CONVERTIBLE
—With factory approved conversion
kit accessory.
WARRANTY
—The aluminum sections are covered by a limited
15-year warranty on the entire assembly. Circulator pump is
covered by a limited 3-year warranty. All other parts are covered
by a 1-year limited warranty.
SPECIFICATIONS
UNIT SIZE 050 075 100
Sections 1
GAS CONTROLS
Gas Valve Honeywell
Inlet Size In. 1/2
Ignition Hot Surface Ignition
Burner—Stainless/Titanium Alloy 1
Burner Orifice No. 0.0615
#48 #44
CONTROLS
Limit Control Range °F 100-200
Pressure Relief Valve Setting Psig 30
Integrated Boiler Control UTEC factory installed
CIRCULATOR
Taco Model 007
Full Load Amps 2.0 AMPS/330 WATTS
Flange Size FPT In. 1-1/4
The BW9 is a gas fired direct vent condensing hot water
boiler with cast aluminum heat exchanger sections. A
revolutionary cast aluminum heat exchanger means better
heat transfer and thermal storage than similarly sized cast
iron boiler, which results in higher efficiency. The heating
system water absorbs large amounts of heat from the cast
aluminum heat exchanger, cooling the flue gases and
causing condensation. Sealed combustion, premix gas
burner, and low flame temperature means drastically
reduced CO and NOx emissions, which contribute to a
cleaner and healthier environment.
MODELS BW9