B = Boiler
W = Water Type of System
3 = Induced Draft/Electronic Combustion/Ignition
A = Model Code
A = 110 to 125 Volts 60 Hz Electrical
N = Natural Gas Fuel
000 = Cooling
Model BW3 Gas-Fired Induced Combustion Water Boilers are the answer to energy-efficient residential hydronic heating. These boilers provide quality design in a small, compact unit easily installed in a basement, garage, or utility room. They can be installed on a combustible floor when an optional combustible floor base is used. The BW3 boilers are CSA certified for use with natural gas and are field convertible for use with propane gas when a factory-authorized conversion kit is used.
RANGE OF CAPACITIES
The BW3 boiler is available in sizes from 42,500 to 225,000.
Each boiler is completely assembled, including all controls (except thermostat and expansion tank). All necessary wiring is factory installed, except for the circulator pump. The boiler is ready for gas, water, room thermostat, and electrical connections.
THERMAL-PIN, CAST-IRON SECTIONS
These sections speed heat transfer from the flue gases to the boiler water with faster thermostat response, providing greater comfort and economy. Maximum heat is produced at a lower level on the thermal-pin sections, leading to peak efficiency.
These boilers incorporate an integral draft system to simplify installation. No external draft diverter is needed.
TITANIUM COMPOSITE BURNERS
Provide quiet operation, corrosion resistance and improved combustion efficiency. Propane convertible – with accessory kit.
An automatic gas valve and continuous pilot or intermittent pilot provide quiet, dependable operation of the burners. Factory-installed safety components assure protection against overheating and pressure build-up. A factory-authorized accessory kit is available for protection against low water operation where required by local code. The circulator is pre-wired with 6-ft. of BX conduit for easy installation for supply-side plumping.
The casing is fully insulated with fiberglass for maximum operating efficiency and economy.
AUTOMATIC VENT DAMPER
The BW3 boiler is an induced draft design and does not require or use an automatic vent damper. These boilers are category 1 for venting purpose.
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.
The cast-iron sections are covered by a non-prorated 20-year warranty on the entire assembly. All other parts are covered by a 5-year limited warranty.