BS BW Gas and Oil-Fired Water and Gas Fired Steam Boilers MODEL BW1, BW2 Series B MODEL BW3 Series B MODEL BS1, BS2 Series B MODEL BW4B, BW5B Series B MODEL BW9 Series A Form No. PDS BS1A.75.
MODEL NUMBER NOMENCLATURE BW9AAN000075AAAA B W 9 A A N 000 075 A A AA Variations AA — Standard B — Boiler Type of System W — Water S i— Steam Series A i— Original Combustion/Ignition 1 — Natural Draft/Standing Pilot 2 — Natural Draft/Electronic 3 — Induced Draft/Electronic 4 — Oil Burner/Without Tankless Coil 5 — Oil Burner/With Tankless Coil 9 — 90% Direct Vent/Sealed Combustion — Labeling A — Common Unit G — Canada Only (oil) Model Code Electrical A 110 to 125 60 Hz Heating Size Btu Inp
BOILER ACCESSORIES (CONT.
CIRCULATOR CURVE 1 12 WATER FLOW M3/H 2 3 4 5 TOTAL HEAD FEET 3 8 2 6 4 1 TOTAL HEAD METERS 10 2 0 4 8 12 16 20 24 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 — — —
MODELS BW9 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.
DIMENSIONS MODEL BW9 ALTERNATE OPENING FOR GAS SUPPLY BOILER WATER TEMPERATURE & PRESSURE GAUGE ALTERNATE SUPPLY & RETURN OPENINGS (1-1/4" NPT (31.75mm) 5" (127mm) FRONT PANEL DOOR PULL CONNECTIONS PROVIDED INSIDE BOILER CABINET) VENT CONNECTION (2" CPVC) (50.8mm) DRAIN ACCESS PANEL CONDENSATE DRAIN FITTING LEVELING FEET (1/2" PVC) (12.7mm) OPENING FOR RELIEF VALVE DISCHARGE PIPE GAS SUPPLY OPENING (1/2" NPT) (12.
MODELS BS1 and BS2 Models BS1 and BS2 Gas-Fired Steam Boilers provide 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 when an optional combustible floor base is used. The model BS1 and BS2 design is CSA and A.G.A. certified for use with natural and is convertible to propane gas with accessory kit.
DIMENSIONS MODELS BS1 and BS2 VENT DAMPER PRESSURE GAGE RELIEF VALVE 26 1⁄2″ 4 3⁄4″ 2 1⁄2″ TRANSFORMER 2 1⁄2″ N.P.T. 29″ 12 GLASS GAGE PRESSURE LIMIT CONTROL LOW WATER CUT-OFF WATER LINE LOW WATER CUT-OFF PROBE 36 3⁄8″ 2 1⁄2″ S86 1⁄4″ 24″ GAS VALVE GAS LINE A LEFT SIDE FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.
MODELS BW1 and BW2 Models BW1 and BW2 Gas-Fired Hot Water Boilers provide 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 when an optional combustible floor base is used. The models BW1 and BW2 design is CSA and A.G.A. certified for use with natural and is convertible to propane gas with accessory kit.
DIMENSIONS BW1 and BW2 MODELS 1 1⁄4″ SUPPLY TEMPERATURE/ PRESSURE GAGE VENT DAMPER ASME RELIEF VALVE AQUASTAT 26 1⁄2″ 4 3⁄4″ A 8″ 1 1⁄4″ RETURN 1 1⁄4″ NPT SPILL SWITCH 31 3⁄8″ 23 1⁄4″ 12 1⁄4″ 5 3⁄8″ ROLLOUT SWITCH DRAIN VALVE LEFT SIDE GAS VALVE INT. PILOT CONTROL FRONT RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.
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.
DIMENSIONS BW3 MODELS 1 1⁄4″ SUPPLY A RELIEF VALVE 23 1⁄4″ VENT CONNECTOR COMBINATION LIMIT & RELAY CONTROL TEMP PRESSURE GAGE 1 1⁄4″ RETURN BLOWER 29″ 25 1⁄4″ 23″ 5 5⁄8″ 5 BURNER 1 3⁄4″ LEFT SIDE PRESSURE SWITCH 5⁄8″ GAS VALVE 7″ FRONT CIRCULATOR INT. PILOT CONTROL RIGHT SIDE DIMENSIONS (In.) CLEARANCES (In.
MODELS BW4 and BW5 The modern design and attractive appearance of the models BW4 and BW5 Oil-Fired Water Boilers make them ideal for installation in any area. The boilers are shipped fully assembled and wired, including all controls (except barometric draft regulator). The compact 22-gage steel cabinet has a baked-on enamel paint finish for durability. A 1-in. layer of thermal insulation is applied inside the jacket for protection and thermal efficiency.
DIMENSIONS MODELS BW4 and BW5 GAGE 1 1⁄ ″ 4 SUPPLY C B CONTROL 1 1⁄4″ RETURN 36″ 3⁄4″ TANKLESS HEATER 1⁄2″ N.P.T. 19 5⁄8″ 9″ ASME RELIEF VALVE 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 BOILER MODEL NO. NO. SEC.
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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.