Carrier BWBCAN000120

84% AFUE 120000 Btuh Gas-Fired Water Boiler

BWBCAN000120

B \= Boiler

W \= Water / Type of System

B \= Natural Draft/Electronic / Combustion/Ignition

C \= Model Code

A \= 110 to 125 60 Hz / Electrical

N \= Natural Gas / Fuel

000 \= Cooling

120 \= 120000 Btu Input / Heating Size

The Model BWB Gas-Fired Hot Water Boiler provides fast heat quietly and economically to assure the finest in 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 (excluding carpet) without a kit or field constructed base. The BWB 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.

Features

Range of Capacities

These boilers are available in sizes 60,000 to 235,000 BTUH.

2021 DOE Compliant

The BWB boiler meets all 2021 Department of Energy requirements for these products, including burner and heat exchanger design for 84% AFUE.

Completely Packaged

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. Steel push nipples are used between each section to provide a water-tight seal.

Integral Draft

These boilers incorporate an integral draft system to simplify installation. A factory-supplied, field-installed draft hood is included.

New Burner Design

New burner design provides quiet operation, corrosion resistance and improved combustion efficiency. Propane convertible with accessory kit.

Other Controls

An automatic gas valve and intermittent pilot provide quiet dependable operation of the burners. Factory-supplied safety components assure protection against overheating and pressure build-up. A factory installed low-water cutoff is included for protection against low water operation. The circulator is pre-wired with 5-ft. (1.5 M) of BX conduit for easy installation for supply-side pumping.

Insulated Casing

The casing is fully insulated with fiberglass for maximum operating efficiency and economy.

Automatic Vent Damper

The BWB boiler is CSA design certified for use with the factory supplied automatic vent damper.

Sections Tested

All BWB heat exchanger assemblies are factory assembled and tested hydrostatically per the current ASME pressure vessel code, section IV, for cast iron sectional boilers. The maximum allowable working pressure is 50 psig. Assembled boilers are 100% end-of-line tested for functionality, electrical safety, and gas leak detection. Other Features

• RH and LH piping and wiring connections for added flexibility
• Removable Burner Tray
• Factory Installed low-water cutoff