Bryan “Flexible Water Tube” AB Series Water Boilers

1 Form No. 7600-3(Rev. 9/97)Originators of the Flexible Water Tube designBryan Flexible Water Tube AB Series Water Boilers900,000 to 2,500,000 BTUHF orced draft gas, oil or dual fuel firedHigh efficiency hot Water heat guaranteedFeaturing Bryan s flexible Water tube designPerformance efficiency breakthrough for commercial/industrial applications Full 5 sq ft per BHPheating surface area True bent Water tubedesign guaranteedshock free efficiencyguaranteedBryan AB Series boiler SpecificationsBOILERNOMINALNOMINALHEATIN GAPPROXIMATEMODELINPUTOUTPUTBOILERSURFAC ESHIPPING (kW)MBH (kW)*HORSEPOWER SQ. FT. (m2)LBS (KG)A B 9 0 -W9 0 0 ( )72 0 ( )21113 ( )2000 ( 907 )AB120-W1200 ( )9 6 0 ( )29148 ( )2250 (1020)AB150-W1500 ( )1200 ( )36184 ( )2550 (1157)AB200-W2000 ( )1600 ( )48244 ( )3050 (1383)AB250-W2500 ( )2000 ( )60303 ( )3500 (1588)* NOTE: Nominal output based on boiler industry standard of 80% of input.

2 Actual combustion efficiencies will be higher and fuel tube and furnacearea access panels; Heavygauge steel lined with hightemperature insulation andrefractory, bolted and tightlysealed to boiler panel: Front pan-els provide easy access forinspection, cleaning and ac-cess to burner side access: Com-bustion chamber, tubes andburner head are completelyaccessible from one side,simplifying maintenance,minimizing floor gauge steel boilerjacket with rust resistant zinccoating and enamel with fiberglass toensure exceptionally coolouter flame sized flue draft, flame reten-tion head type burner. Effi-cient combustion of oil orgas, quiet panel: All controlsinstalled and connected toterminal strip (optional).QualityConstructionFeaturesAH eavy steel boiler frame,built and stamped in accor-dance with the appropriateASME boiler volume Water legdowncomers promote rapidinternal circulation and tem-perature bent Water tubesare flexible, individually re-placeable without weldingor cooled furnace withlow heat side interior acces-sible for cleanout and in-spection, front and rearopenings, upper and design: Innerfireside casing constructedof heavy gauge steel, com-pletely seal welded, linedwith high temperature insu-lation and AB Series BoilersStandard and OptionalEquipmentSTANDARD EQUIPMENTFURNISHEDGas fired, forced draftCombination thermometer and altitude gauge, ASMECode rated boiler relief valve, Water temperaturecontrol (240 F Max.)

3 Std.), high limit control, probeLWCO, electronic combustion safety control, auto-matic operating gas valve, safety gas valve, pilotsolenoid valve, pilot ignition assembly, main manualgas shut-off valve, pilot cock, pilot and main gaspressure regulators, air safety switch, electrical box,all controls installed and fired, forced draftCombination thermometer and altitude gauge, ASMECode rated boiler relief valve, Water temperaturecontrol (240 F Max. Std.), high limit control, probeLWCO, electronic combustion safety control, oilvalve, oil ignition transformer, two-stage fuel unit,gas pilot, oil nozzle assembly, electrical box, allcontrols installed and wired.[9] Lead-lag systems for two or more boilerswith or without outdoor reset control[10] Draft control systemOptional construction,high temperature hot waterOptional construction to ASME Power boiler Coderequirements for temperatures exceeding 250 Fand/or pressure exceeding 150 psi to maximum of350 F and 300 psi, high temperature gauge andoperating controls ordering, please specify:[1] boiler size[2] Supply and return temperatures required[3] boiler relief valve setting[4] Type of fuel: natural, LP or other gas and/orNo.

4 2 oil[5] If gas, type, BTU content, specific gravityand pressure available[6] Electric power voltage, phase and frequency[7] Optional extra equipment or construction[8] Special approvals required (FM, IRI or other)These unique features are availableonly on Bryan AB Series Water boilersThe Bryan Flexible TubeBryan s exclusive flexible tube design eliminates the possi-bility of damage from thermal shock. Tubes are easily removable and replace-able, without welding or rolling, eliminat-ing long, expensive downtime shouldrepairs ever be required. A 20-year non prorated warrantyagainst pressure vessel damagedue to thermal shock protectsevery Bryan Water design, minimum floorspaceWith our compact Water tubedesign, the overall size of theunit is less than most othertypes of Boilers , yet main-tains a full five sq ft per HPheating surface area.

5 Needingonly 24 inches for tube removal,and only on one side of the boiler ,the AB Series boiler occupies verysmall space in the boiler can result in considerablesavings in building costs. Pressur-ized firing permits minimum sized breech-ing and internal circulationEach pass of the Bryan Water tube slopes upward. Thisconfiguration, along with the large volume downcomer waterlegs, provides extremely rapid natural thermal internal circu-lation, promoting both high efficiency of heat transfer anduniform temperature throughout the boiler . Eliminating stressdamage caused by unequal temperature distribution is espe-cially important for hot Water heating systems, particularlywhere intermittent or continuous low temperature Water re-turns may be flue gas travelHigh velocity four pass flue gas travel is obtained by aunique baffling system.

6 This contributes to maximum fireside heat transfer and overall high boiler of furnace and tube areaBolted inner panel provides easy and com-plete access to furnace andboiler tube area, as well as toburner head. Tube side panelsare all removable and heavilyinsulated and sealed to boilerframe. All access is from onlyone blend Water returnBryan s unique thermal blend return blends cold or cooler re-turn Water with warmer boilerwater, bringing it to design oper-ating injector tube directs the mixed Water flow through thedowncomer to the lower headerand heating surfaces at a tem-perature above possiblecondensing conditions. Thisreduces the possibility of cold spots and damagefrom corrosive cooled furnaceThe configuration of the Water tubes provides a Water cooledcombustion chamber.

7 A high percentage of the heatingsurface is exposed to direct radiant heat, increasing watervelocities and heat gas-oil forced draftCombination thermometer and altitude gauge, ASMECode rated boiler relief valve, Water temperaturecontrol (240 F Max. Std.), high limit control, probeLWCO, automatic motorized gas valve, safety gasvalve, pilot solenoid valve, pilot ignition assembly,main manual gas shut-off valve, pilot cock, pilot andmain gas pressure regulators, air safety switch,manual fuel selector switch, electronic combustionsafety control, oil valve, oil ignition transformer,two-state fuel unit, oil ignition and nozzle assembly,electrical box, all controls installed and EQUIPMENT,EXTRA COST[1] Manual reset high limit control, installed[2] Manual reset low Water cutoff[3] Auxiliary low Water cutoff[4] Combination low Water cutoff and feeder[5] Alarm bells or horns[6] FM, IRI, CSD-1 or other insurance approvedcontrol systems[7] Indicating lights, as desired[8]

8 Control panel mounted on boilerBryan AB Series Hot Water Heating BoilersForm No. 7600-3 1995 Bryan Boilers Printed in USA97-4485 DIMENSIONS in inches (cm)ABCDEFG H IJKLB oilerLengthWidthMin. Tube Clearance forHeightFloor toModelofFlueFlueOverallGas TrainSupplyReturnOutsideRemovalServicing OverFlowNumberJacketLocationSizeLengthCo nnection Connection ConnectionJacketClearanceBurnerJacketNoz zleAB90-W4415/1612107611/43-F3-F343/4243 6691/2747/8( )( )( ) ( )( )( )( )( )( )( )( ) ( )AB120-W543/161210853/811/43-F3-F343/424 36691/2747/8( )( )( ) ( )( )( )( )( )( )( )( ) ( )AB150-W631/21210943/411/23-F3-F343/4243 6691/2747/8( )( )( ) ( )( )( )( )( )( )( )( ) ( )AB200-W7815/16161/21011023-F3-F343/4243 6691/2747/8( )( )( ) ( )( )( )( )( )( )( )( ) ( )AB250-W947/1615121251/223-F3-F343/42436 691/2747/8( )( )( ) ( )( )( )( )( )( )( )( ) ( )Specifications subject to change without notice.

9 Consult factory to consult on other boiler 1916 Subsidiary of Bryan Steam 27, Peru, Indiana 46970-0027 : 765-473-6651 Internet: : 765-473-3074 E-mail.