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Gas and Oil-Fired Water and
BS
Gas Fired Steam Boilers
BW
MODEL BW1, BW2
MODEL BW3
Series B
Series B
MODEL BS1, BS2
Series B
MODEL BW9
MODEL BW4B, BW5B
Series A
Series B
Form No. PDS BS1A.75.3
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MODEL NUMBER NOMENCLATURE BW9AAN000075AAAA B W 9 A A N 000 075 A A AA Variations B — Boiler AA — Standard Type of System W — Water Series S i— Steam A i— Original Combustion/Ignition — 1 — Natural Draft/Standing Pilot Labeling 2 — Natural Draft/Electronic A — Common Unit 3 — Induced Draft/Electronic G — Canada Only (oil) 4 — Oil Burner/Without Tankless Coil 5 — Oil Burner/With Tankless Coil 9 — 90% Direct Vent/Sealed Combustion Model Code Electrical Heating Size A 110 to 125 6
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BOILER ACCESSORIES (CONT.) Combustible Floor Base (6 thru 7 section models) KBASB0401DNK Gas Conversion Kit Natural to Propane (3 section, BS1/2-075) KBANP0301DNK Gas Conversion Kit Natural to Propane (4 section, BS1/2-112) KBANP0401DNK Gas Conversion Kit Natural to Propane (5 section, BS1/2-150) KBANP0501DNK Gas Conversion Kit Natural to Propane (6 section, BS1/2-187) KBANP0601DNK Gas Conversion Kit Natural to Propane (7 section, BS1/2-225) KBANP0701DNK Gas Conversion Kit Natural to
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CIRCULATOR CURVE 3 WATER FLOW M /H 1 23 4 5 12 10 3 8 2 6 4 1 2 0 4 8 12162024 WATER FLOW GPM WATER BOILER CIRCULATOR CURVE ELECTRICAL DATA ALL MODELS Voltage—Hertz—Phase 115 — 60 — 1 Minimum Branch Circuit Wire Size (AWG) 14 Maximum Fuse Size (Amps) 15 Control Circuit Power Available 40va–@ 24v STANDARD BOILER WARRANTIES (Yrs) MODEL BW1 BW2 BW3 BW4 BW5 BW9 BS1 BS2 Circulator Pump 3 3 3 3 3 3 — — Vent Damper 5 5 — — — — 5 5 Heat Exchanger Section Assembly (Non-prorated) 20 20 20
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MODELS BW9 The BW9 is a gas fired direct vent condensing hot water The BW9, unlike normal residential atmospheric and induced draft boiler with cast aluminum heat exchanger sections. A boilers, takes its combustion air directly from the outdoors (sealed revolutionary cast aluminum heat exchanger means better combustion) and does not compete with building occupants for heat transfer and thermal storage than similarly sized cast fresh air. Sealed combustion (al
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DIMENSIONS MODEL BW9 ALTERNATE OPENING FOR GAS SUPPLY BOILER WATER TEMPERATURE ALTERNATE SUPPLY & PRESSURE GAUGE 5" (127mm) & RETURN OPENINGS (1-1/4" NPT (31.75mm) FRONT PANEL DOOR PULL CONNECTIONS PROVIDED INSIDE VENT CONNECTION BOILER CABINET) (2" CPVC) (50.8mm) DRAIN ACCESS PANEL CONDENSATE LEVELING FEET DRAIN FITTING (1/2" PVC) (12.7mm) OPENING FOR RELIEF VALVE GAS SUPPLY DISCHARGE PIPE OPENING (1/2" NPT) (12.7mm) OPENING FOR AIR VENT AND EXPANSION JUNCTION BOX FOR 120 V POWER,
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MODELS BS1 and BS2 Models BS1 and BS2 Gas-Fired Steam Boilers provide fast FEATURES heat quietly and economically to assure the finest in hydronic RANGE OF CAPACITIES—Sizes 75,000 through 299,000 Btuh heating. input are available. These boilers provide quality design in a small, compact unit COMPLETELY PACKAGED—Each boiler is completely assem- easily installed in a basement, garage, or utility room. They bled, including all controls (except room thermo
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DIMENSIONS MODELS BS1 and BS2 VENT PRESSURE DAMPER 1 26 ⁄ ″ 2 GAGE RELIEF 3 4 ⁄ ″ 4 VALVE 1 2 ⁄ ″ 2 TRANSFORMER GLASS PRESSURE GAGE LIMIT CONTROL WATER 1 2 ⁄ ″ N.P.T. 2 LOW WATER LINE CUT-OFF 29″ LOW WATER 3 1 36 ⁄ ″ 2 ⁄ ″ 24″ 8 2 CUT-OFF PROBE S86 1 12 ⁄ ″ 4 GAS VALVE GAS LINE A LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A VENT DIAMETER RIGHT SIDE 6* 075 11-1/4 5 LEFT SIDE 6* 112 14-1/2 6 TOP 6* 150 17-3/4 6 BACK 6* 187 21 7 FRONT 6* 2
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MODELS BW1 and BW2 Models BW1 and BW2 Gas-Fired Hot Water Boilers provide FEATURES fast heat quietly and economically to assure the finest in RANGE OF CAPACITIES—Sizes 37,500 through 280,000 Btuh are hydronic heating. available. These boilers provide quality design in a small, compact unit COMPLETELY PACKAGED—Each boiler is completely assembled, easily installed in a basement, garage, or utility room. They including all controls (except room the
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DIMENSIONS BW1 and BW2 MODELS 1 TEMPERATURE/ VENT 1 ⁄ ″ SUPPLY 4 ASME AQUASTAT PRESSURE GAGE DAMPER RELIEF 1 26 ⁄ ″ A 2 VALVE 3 4 ⁄ ″ 4 8″ 1 1 ⁄ ″ 4 1 1 ⁄ ″ NPT 4 RETURN SPILL SWITCH 3 31 ⁄ ″ 8 1 23 ⁄ ″ 4 1 12 ⁄ ″ 4 3 5 ⁄ ″ 8 DRAIN VALVE ROLLOUT INT. PILOT GAS SWITCH CONTROL VALVE LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A VENT CONNECTION 6 (2-5 Section)* RIGHT SIDE 24 (6-9 Section)* 037 8 3 6 (2-5 Section) LEFT SIDE 070 11-1/4 5 24 (6-9
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MODEL BW3 Model BW3 Gas-Fired Induced-Combustion Water Boilers FEATURES are the answer to energy-efficient residential hydronic RANGE OF CAPACITIES—Six sizes ranging from 42,500 through heating. They provide fast, almost instant, heat quietly and 225,000 Btuh input. economically. COMPLETELY PACKAGED—Each boiler is completely assembled, These boilers provide quality design in a small, compact unit including all controls (except room thermostat). All necessa
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DIMENSIONS BW3 MODELS 1 1 ⁄ ″ SUPPLY 4 1 23 ⁄ ″ A 4 COMBINATION RELIEF VENT LIMIT & RELAY TEMP VALVE CONNECTOR CONTROL PRESSURE GAGE 1 1 ⁄ ″ RETURN 4 BLOWER 29″ 1 25 ⁄ ″ 4 23″ PRESSURE SWITCH 5 5 5 ⁄ ″ 5 ⁄ ″ 8 8 CIRCULATOR BURNER 3 1 ⁄ ″ 4 GAS INT. PILOT 7″ VALVE CONTROL LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A VENT CONNECTION RIGHT SIDE 6* 042 11 4* LEFT SIDE 6 075 14-1/4 4* TOP 6 112 17-1/2 4* BACK 6 150 20-3/4 4* FRONT 6*
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MODELS BW4 and BW5 The modern design and attractive appearance of the models provides efficient fuel usage. A wet base cast iron block with thermal BW4 and BW5 Oil-Fired Water Boilers make them ideal for pins surrounds the combustion area for better heat transfer from flue installation in any area. The boilers are shipped fully gases to water. assembled and wired, including all controls (except barometric FEATURES draft regulator). The compact 22-gage steel c
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DIMENSIONS MODELS BW4 and BW5 1 GAGE 1 ⁄ ″ SUPPLY 4 C B CONTROL 1 1 ⁄ ″ 4 RETURN 36″ TANKLESS 3 ⁄ ″ ASME 4 HEATER RELIEF 1 ⁄ ″ N.P.T. 2 VALVE 5 19 ⁄ ″ 9″ 8 A FRONT SIDE REAR DIMENSIONS (In.) CLEARANCES (In.) UNIT SIZE A B C RIGHT SIDE 16* 140 17-3/4 6 9-3/4 LEFT SIDE 16* 210 21 6 11-3/8 TOP 16* 280 24-1/4 6 13 BACK 16* FRONT 16† FLUE 18* * Clearance 18 in. for BW5. † Service clearance requirement 24 in. RATINGS AND PERFORMANCE **HEAT- NET ING CA- I=B=R FIRING INPUT PACITY RATING R
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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE UNIT MUST BE INSTALLED IN ACCORDANCE WITH INSTALLATION INSTRUCTIONS Cancels: PDS BSIA.75.2 © 2001 Bryant Heating & Cooling Systems, 7310 W. Morris St., Indpls., IN 46231 PRINTED IN U.S.A Catalog No. 12BS-1A1 3-01
