ClearFire-W Brochure - Tundra Process Solutions Ltd.

HIGH EFFICIENCY, COMPACTClearFire ® -w Commercial Hot water BoilerClearFire ® - W400 - 2,400 MBH

ClearFire, the New Standard in CommercialHigh-Efficiency Firetube BoilersCLEARFIRE BOILERSThe ClearFire-W noncondensingcommercialhot water boiler offers highefficiency, low NOx technologyand as such satisfies demands foreconomy and environmental protection.It features the C-B ClearFire combustionsystem with pre-mix down firing burner.This advanced burner is fundamentalto the boiler achieving efficiencies upto 88% and NOx levels to less than 20PPM. The pre-mix burner is suitable foruse with natural gas. ClearFire boilersare available in 7 sizes with maximuminputs between 400 - 2,400 MBTU.They are suitable for central heating forworking pressures up to 125 psig.Key Design features:• ASME Section IV carbon steelconstruction, 125# design• 400 - 2,400 MBTU• Up to 88% efficiency• Up to 5:1 turndown• Low NOx at < 20 PPM• Advanced Falcon controlsseamlessly integrates up to 8 boilers• Uses the patented AluFer® tube• Compact footprint• Easy maintenance• Single pass design• Thermal shock resistanceCONTROLSC-B Falcon ControlsThe C-B Falcon is a total boiler controlthat provides our customers with theintegrated functionality needed toefficiently and economically operate theirboiler system, while providing necessarysafety and reliability.• A single source solution for totalBoiler control• Touch screen graphics with trending• Three configurable relays (pump/valve)• Post shutdown pump delay• Outdoor temperature reset• Supply & return water sensor• High limit cut-out with manual reset• Integrated Burner sequencing,alarming and lockout• Date/time stamping of lockouts andalerts• First out expanded annunciation, firingrate limiting, time of day (setback) andPID loops.• ModBus (RS485) Communications• Frost protection• Modulation VSD combustion control• UL RecognizedENHANCED EFFICIENCYEnhanced efficiency withsingle pass heat exchangerThe single pass ClearFire boiler has apremix burner downfiring into a verticalwater surrounded tube nest made up ofhigh efficiency AluFer® tubes.The extended heating surface andcorrosion resistant properties of theAluFer® tube ensure enhancing heattransfer and peak performance.AluFer ® TubesThe internationally patented AluFer®tube is the latest innovation in advancedheat transfer technology.The tube is constructed from an inner(fireside) aluminum alloy finned surface,die fitted within an outer steel tubeproviding exceptional heat exchangecharacteristics.The efficiency ofthe heat transfer isattributable to thefollowing factors:• Heat conductivity of the Alufer®insert is ten times greater than thatof carbon steel.• Internal finned surface of the Alufer®tube enlarges the heat exchangesurface fivefold.• Inner surface of the tube is dividedinto eight flow channels to createmaximum turbulence and heat transfer.User-friendly Touch ScreenGraphics

The ClearFire-W AdvantageCOMBUSTION CONTROLPremix modulating burneroperationThe premix burner controls automaticallyadjust the air/gas mixture to the correctproportions before it enters the burner.A symmetrical 360° even temperature heatoutput is achieved from the burner, givingconsistent high efficiency combustion withlow NOx emissions. Turndown is 5:1 withstandard emissions of < 20 ppm.Burner Gas TrainStandard components meet therequirements of cULus, ASME CSD-1, XL-GAP, and FM. These items include:• Low Gas Pressure manual reset.• High Gas Pressure manual reset.• CSD-1 Test Cocks• Manual Test ValveGas Train is factory piped and wired on theburner. Gas supply connection should bemade at the side of the boiler and include adrip leg.Modulating low NOxBurner Assembly for MaximumOperating EfficiencyFiber Mesh Fecralloy BurnerDesigned to Premix Air andFuel for Optimal CombustionThermal Insulation withSteel CasingSingle Power Point forElectrical and ControlsPatented Alufer® Tubes forIncreased Heat TransferHandhole(s) for CleaningBoiler Trim and ControlsBoiler trim is in accordance with cUL andASME CSD-1 which includes:• High Limit Temperature Control— Manual Reset• Combustion Air Proving Switch• Manual Reset Probe Type Low WaterCutoff• ASME Safety Relief Valve set @ 125 psig.Quality AssuranceEach ClearFire Boiler is manufacturedin accordance with ASME Section IVrequirements and appropriately stamped.Manufacturing process is according to ISO9001 standards The complete package iscULus certified, listed, and labeled.

ClearFire ® -W Boiler Dimensions and RatingsITEMDIMENSIONSBOILER SIZE400 500 750 1000 1500 2000 2400A overall length 50" 50" 55" 55" 56" 68" 68"B centerline to boiler front 25" 25" 29" 29" 28" 35" 35"C centerline to stack outlet 21" 21" 24 ¾" 24 ¾" 25 ½" 28 ½" 28.½"D centerline combustion air inlet 24 ½" 24 ½” 24 ½” 24 ½” 27" 37 ¼" 37 ¼"E boiler o.d. 32" 32" 39" 39" 41" 47" 47"F overall width 40 ½" 40 ½" 44" 44" 47 ½" 60 ¾" 60 ¾"G outside width of channel 26" 26" 28" 28" 30" 36" 36"H inside width of channel 14" 14" 16" 16" 18" 24" 24"J centerline to gas inlet 17 ¼" 17 ¼" 19 ¼" 19 ¼" 20 ¼" 22" 22"K overall height 76 ½" 82 ½" 76 ½" 82 ½" 88" 88" 94"L vessel height 59 ½" 65 ½" 59 ½" 65 ½" 70" 67" 73"M burner door clearance (open) 85 ½" 91 ½" 84 ¾" 90 ¾" 99 ¾" 101" 107"N floor to gas inlet 67 ½" 73 ½" 67 ½" 73 ½" 79 ½" 79 ¼" 85 ¼"P floor to air inlet 67 ¼" 73 ½" 67 ¼" 73 ½" 79 ½" 78" 84"Q floor to supply connection 53 ½" 59 ½" 54 ½" 60 ½" 64 ¾" 61 ¼" 67 ¼"R floor to return connection 28" 31" 25 ¾" 25 ¾" 32 ¼" 31 ½" 34 ½"S floor to drain 15 ½" 15 ½" 14 ½" 14 ½" 17 ¼" 19 ½" 19 ½"T floor to stack outlet 8 ½" 8 ½" 8" 8" 9" 9 ¾" 9 ¾"CONNECTIONSU flue/stack, nominal od 6" 6" 6" 6" 8" 10" 10"V sealed combustion, air 4" 4" 4" 4" 6" 8" 8"W supply water, flange 2 ½" 2 ½" 2 ½" 2 ½" 3" 4" 4"X return water, flange 2 ½” 2 ½” 2 ½” 2 ½" 3" 4" 4"Y boiler drain 1" 1" 1" 1" 1" 1 ¼" 1 ¼"Z condensate drain ½" ½” ½” ½" ½” ½” ½”AA air vent 1" 1" 1" 1" 1" 1" 1"BB safety valve, 125 psig 1" 1" 1" 1" 1" 1" 1"CC gas train 1" 1" 1" 1" 1 ½ " 1 ½" 1 ½"WEIGHTS-LBSshipping weight (125#) 1550 1700 2100 2300 2900 3400 3800operating weight (125#) 2205 2460 3260 3630 4330 5105 5780RATINGSbtu/hr maximum input @ sea level to 2000' 400,000 500,000 750,000 1,000,000 1,500,000 2,000,000 2,400,000*btu/hr output @ sea level to 2000' 344,000 430,000 645,000 860,000 1,290,000 1,720,000 2,064,000max. amp draw fan @ 115/1/60 4.0 4.0 4.0 4.0 8.5 12.0 12.0blower motor size (watts) 335 335 335 335 750 1,200 1,200fireside heating surface (ft 2 ) 86 105 133 164 263 319 395*Note: Output based on 86% efficiency with 140°F return and 180°F supply water temperature221 Law Street · Thomasville, GA 31792414-359-0600 · 800-250-5883info@cleaverbrooks.com · cleaverbrooks.comPrinted in the USACopyright © Cleaver-Brooks, IncCB-818701/11