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Hersteller: Bryant Dateigröße: 337.13 kb Dateiname: Unterrichtssprache:

† A 4-in. vent damper is supplied. A 4-in. to 3-in. reducer is also furnished. —9— DIMENSIONS BW1 and BW2 MODELS 23 1.4 . 31 3.8 . 5 3.8 . 4 3.4. 1 1.4. SUPPLY 26 1.2 . 12 1.4. A 8. TEMPERATURE/ PRESSURE GAGE SPILL SWITCH DRAIN VALVE INT. PILOTROLLOUT SWITCH GAS 1 1.4. RETURN1 1.4. NPT AQUASTAT VENT DAMPERASME RELIEF VALVE CONTROL VALVE LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A VENT CONNECTION 037 8 3 070 11-1/4 5 105 14-1/2 6 140 17-3/4 6 175 21 7 210 24-1/4 7 245 27-1/2 7 280 30-3/4 7 RIGHT SIDE 6 (2-5 Section)* 24 (6-9 Section)* LEFT SIDE 6 (2-5 Section) 24 (6-9 Section) TOP 6 BACK 6 FRONT 6* * Service clearance requirement 24 in. RATINGS AND CAPACITIES* BW1, BW2 GAS TYPE NUMBER OF SECTIONS MAX INPUT (BTUH) HEATING CAPACITY (BTUH) NET RATING (BTUH) AFUE % APPROX SHIP. WT (Lb)BW1 BW2 AAN037 Natural 2 37,500 30,000 26,000 80.0 81.4 227 AAN070 Natural 3 70,000 57,000 50,000 80.4 81.6 285 AAN105 Natural 4 105,000 85,000 74,000 80.4 81.5 350 AAN140 Natural 5 140,000 113,000 98,000 80.3 81.3 421 AAN175 Natural 6 175,000 142,000 124,000 80.2 81.1 488 AAN210 Natural 7 210,000 170,000 148,000 80.1 81.0 564 AAN245 Natural 8 245,000 198,000 172,000 80.0 81.6 626 AAN280 Natural 9 280,000 226,000 197,000 80.0 80.7 689 * Ratings are for altitudes to 2000 ft. Unit ratings for altitudes over 2000 ft are 4% less for each 1000 ft above sea level. —10— MODEL BW3 Model BW3 Gas-Fired Induced-Combustion Water Boilers are the answer to energy-efficient residential hydronic heating. They provide fast, almost instant, heat quietly and economically. 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 kit is used. The design of model BW3N is CSA and A.G.A. certified for use with natural gas and is convertible to propane gas with accessory kit. FEATURES RANGE OF CAPACITIES—Six sizes ranging from 42,500 through 225,000 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, water, room thermostat, and electrical power connections as shipped. VENTING—This boiler can be vented into any approved chimney or Type B-1 vent. Common-venting with an existing water heater is acceptable in vertical vent systems. See the Installation Instructions for common venting requirements. The induced-combustion design also eliminates the need for a vent damper. 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. TITANIUM COMPOSITE BURNERS—Provide quiet operation, corrosion resistance, and improved combustion efficiency. Propane convertible with accessory kit. CONTROLS—An automatic gas valve and intermittent pilot provide quiet, dependable operation of the burners. Factory-installed safety components provide maximum safety against overheating, pressure buildup, and low-water operation. INSULATED CASING—Fully insulated with fiberglass for maximum operating efficiency and economy. 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. UNIT CONVERTIBLE—The Boiler is listed for power venting with field controls power venting kit. W...

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